Product Owner Backoffice (E-commerce, ERP/WMS & Integracje)

🏢 Summary: Backend Engineer role focused on building production systems for AI agents, including backend services, APIs, and data pipelines for enterprise customers. The position involves designing reliable distributed systems, maintaining production services, and collaborating closely with cross-functional teams in a fully on-site Warsaw office environment. The company offers a modern AI-focused tech stack, B2B contract, stock options, and opportunities to contribute to open-source projects. 🗂️ Requirements: 3–5 years of experience building backend production systems, Strong Python skills, Understanding of distributed systems, Experience with AWS, GCP, or Azure, Knowledge of SQL and NoSQL databases, Database design experience, Security-focused approach to system design, Ability to manage projects from idea to production, Strong written and spoken communication skills, Experience using AI tools in software development, Ability to work fully on-site in Warsaw 📃 Skills: Python, AWS, GCP, Azure, SQL, NoSQL, AI, TypeScript, APIs, GitHub, Copilot, Codex, Claude 🏢 Description: Please note: This role requires working from our office in Warsaw city centre 5 days a week . This is a fully on-site position , and remote or hybrid work is not available . About us We believe that businesses are moving toward AI-powered work, and we are building a platform for this future. Many AI agents cannot handle complex business tasks. We created a platform that organizes company policies, workflows, and business knowledge into one AI data model. This helps AI agents make accurate decisions and deliver reliable results at scale. We already work with well-known enterprise customers such as Glovo, Nespresso, and HelloFresh. Our platform supports thousands of users and handles real production data. Customers trust us with important business knowledge because we provide a secure and reliable solution with SOC2, HIPAA-ready security practices, and strong integrations. Job description We are looking for a backend engineer with several years of experience who wants to take responsibility for real systems, not only complete assigned tasks. You will solve backend challenges, choose the best technical solutions, deliver new features, and support them in production. We are looking for someone with good technical skills, clear communication, and a desire to build systems that are simple, reliable, and easy to improve. You will help build production systems for AI agents, working on real problems for customers who already use our platform. The position is based in Warsaw and requires working from the office. Responsibilities Build backend services, APIs, data pipelines, and background processes for production systems. Turn business requirements into technical solutions and implementation plans. Monitor and maintain services after release, improving reliability, performance, and system monitoring. Design service interfaces and data models that fit well into the overall system. Create technical documentation and diagrams when they help the team. Work closely with product managers, frontend engineers, and platform engineers. Improve engineering processes using AI tools, automation, and better workflows. Help maintain high code quality through code reviews and design reviews. Requirements Around 3–5 years of experience building backend production systems. Strong Python skills and the ability to write clean and maintainable code. Good understanding of distributed systems, including concurrency, failures, data consistency, asynchronous processing, and service communication. Experience with cloud platforms such as AWS, GCP, or Azure, and knowledge of SQL, NoSQL, and database design. A security-focused approach when working with sensitive data and system design. Ability to manage projects from idea to production with increasing responsibility. Good written and spoken communication skills, with the ability to explain technical decisions clearly. Experience using AI tools as part of your daily software development work. Nice to have Experience with AI agents, orchestration, retrieval systems, tool calling, or LLM-based infrastructure. Knowledge of TypeScript or willingness to work across the full technology stack. Experience taking on more responsibility and learning quickly. What we offer B2B contract and company stock options. MacBook Pro. Modern technology stack and the opportunity to contribute to open-source projects. An AI-focused development environment with tools such as Claude Code, OpenAI Codex, and GitHub Copilot. Our values Our leadership team combines strong experience in AI, knowledge management, and enterprise SaaS. We have received more than $60 million in funding and have been recognized by Gartner as a Cool Vendor. Our work is guided by these values: Quality – We care about excellent work and high standards in everything we build. Momentum – We take initiative, share ideas, and keep moving forward. Accountability – We take responsibility for our work and give honest, respectful feedback. Hard work – We believe success comes from teamwork, dedication, and consistent effort. Learning agility – We stay curious, learn from mistakes, and continue improving. Adapt and thrive – We welcome change and see challenges as opportunities to grow. Win together – We work as one team, communicate openly, and support our shared goals.

🏢 Summary: Senior Backend Engineer role focused on designing, building, and maintaining production backend systems and AI-driven workflows in a fully onsite Warsaw office environment. The position involves ownership of system architecture, APIs, distributed systems, and cloud infrastructure from design through production. Candidates will collaborate across teams, improve engineering processes with AI tools, and contribute to scalable, reliable solutions. 🗂️ Requirements: Strong experience as a senior backend engineer on production systems, Excellent Python programming skills, Understanding of distributed systems, Experience with AWS or Azure cloud platforms, Knowledge of SQL and NoSQL databases, Experience with asynchronous processing and service design, Ability to design and deliver systems from idea to production, Strong written and spoken communication skills, Regular use of AI development tools, Ability to work fully onsite in Warsaw 📃 Skills: Python, AWS, Azure, SQL, NoSQL, APIs, AI, TypeScript, GitHub, Copilot, Claude, OpenAI, Codex 🏢 Description: Please note: This role requires working from our office in Warsaw city centre 5 days a week . This is a fully on-site position , and remote or hybrid work is not available . About Us Many companies want to use AI agents, but these agents often struggle with real business tasks. We solve this problem by building a platform that helps AI understand business rules, workflows, and processes. This allows AI to make better decisions and provide accurate, reliable, and compliant results. Well-known companies from different industries use our technology to automate up to 85% of customer cases, reduce handling time by 20–25%, and complete tasks that used to take hours in just seconds. We also work with leading technology partners and have been recognized for our innovative approach. Our goal is to help people everywhere get better answers through AI. Job Description We are looking for a Senior Backend Engineer who can take ownership of important systems instead of only completing assigned tasks. You will solve complex problems, design backend solutions, build them, and make sure they run well in production. We want someone with strong technical skills, good communication, and the ability to create simple, reliable, and easy-to-maintain systems. This is a product engineering role with responsibility from system design to production. The position is based in Warsaw and requires office work. Responsibilities Design and develop backend services, APIs, data processing, and background tasks for production systems. Turn unclear business needs into clear technical plans and practical solutions. Maintain services after release by improving reliability, monitoring, performance, and fixing issues. Make good decisions about system architecture, data models, interfaces, and future scaling. Write technical documentation, architecture notes, and diagrams when they help the team. Work closely with product managers, frontend engineers, and platform engineers to deliver complete solutions. Improve development processes using AI tools, automation, and internal workflows. Support the team through code reviews, design reviews, and practical technical leadership. Requirements Strong experience as a senior backend engineer working on production systems. Excellent Python skills and the ability to write clean and maintainable code. Good understanding of distributed systems, including concurrency, failure handling, data consistency, asynchronous processing, and service design. Experience with cloud platforms such as AWS, Azure, or similar services. Knowledge of SQL, NoSQL databases, schema design, and performance optimization. Ability to take a project from an idea through design and implementation to production. Strong written and spoken communication skills with the ability to explain technical topics clearly. Regular use of AI tools in everyday development and interest in improving AI-based workflows. Nice to Have Experience with LLM-based applications, search systems, AI infrastructure, or large data pipelines. Knowledge of TypeScript or the ability to contribute to frontend development when needed. Experience guiding other engineers and influencing technical decisions without being a formal manager. What We Offer B2B contract and company stock options. MacBook Pro for work. Modern technology stack and opportunities to contribute to open-source projects. Access to advanced AI development tools, including GitHub Copilot, Claude Code, OpenAI Codex, TypingMind, and MCP servers. Our Culture and Values Our leadership team has strong experience in AI and knowledge management. We have secured more than $60 million in funding and achieved three years of continuous 3x growth. Our work is based on these values: Quality – We aim for excellent work and high coding standards. Momentum – We take initiative and keep projects moving forward. Accountability – We take responsibility and give honest, respectful feedback. Hard Work – We believe great results come from teamwork and consistent effort. Learning Agility – We stay curious, learn from mistakes, and improve every day. Adapt and Thrive – We accept change and see challenges as opportunities. Win Together – We succeed as one team through honesty, openness, and support for our shared mission.

🏢 Summary: Senior Backend Software Engineer role focused on designing and building highly scalable, distributed backend systems in a cross-functional, AI-driven environment. The position involves leading the full software development lifecycle, improving performance and quality, and mentoring engineers while working with modern cloud and DevOps technologies. The role emphasizes ownership, automation, and leveraging AI tools to optimize development processes. 🗂️ Requirements: Minimum 5 years backend development experience, 1–2 years experience in senior-level role, Experience building distributed web applications, Experience designing and developing RESTful APIs, Experience with SQL or NoSQL database modeling, Strong knowledge of data structures and algorithms, Experience with microservices architecture, Experience with cloud platforms (GCP), Experience with containerization and orchestration, Proven experience using AI tools for code generation and debugging, Ability to design highly scalable and highly available systems 📃 Skills: Ruby, RoR, Java, Python, Scala, Go, Elixir, C++, REST, SQL, NoSQL, MongoDB, Redis, GCP, Docker, Kubernetes, Microservices, Terraform, Ansible, Elasticsearch, Grafana, Kibana, GitHub, MachineLearning, React, TypeScript, Redux 🏢 Description: As a Senior Backend Software Engineer , you will be a critical part of our growing company, working on a cross-functional team to implement best practices in technology, architecture, and process. You'll have the chance to work in an open and collaborative environment, receive and give hands-on mentorship and have opportunities to grow and accelerate your career. You love both learning and teaching. In this role, you will be interfacing with design, front-end, analytics, as well as teams outside of Engineering. You enjoy working cross functionally to solve hard problems and make an impact. At Apollo, you strive for quality, and are obsessed with improving quality, automation, and squashing any bugs that sneak through. You have a drive to constantly investigate performance improvements and innovative ideas. This is how we organize our work We’re language agnostic, you don’t need any previous Ruby experience for the backend positions. Any of those programming languages - Java, Python, Scala, Go, Elixir, C++ will be great as you'll learn Ruby during the onboarding Responsibilities Design and implement highly scalable backend endpoints Gather product requirements and write design docs to satisfy product needs Drive/Lead full lifecycle of software development: product requirements, architecture, solution design, development, quality assurance, and maintenance Mentor others on best practices and effectively share knowledge Ability to effectively communicate development progress to the product lead, engineering manager, and other stakeholders Be comfortable introducing new technologies and new ideas as required Work effectively as part of a large global team Attend and engage in scrum ceremony meetings, team parties, and manager 1:1s Provide feedback to co-workers in written and verbal form and respond to technical and behavioral feedback from managers and peers Proactively acts without being told what to do. Able to identify areas of improvement and driving best practices to deliver high quality, performant, and scalable solutions Develops services that are highly available and scalable with proper monitoring and alerting in place Able to up-level the team by sharing knowledge and best practices with the engineering team Able to deal with ambiguity Ownership of projects from start to finish. Just because the project has been deployed doesn’t mean it’s done Organized and able to effectively plan and breakdown large projects into smaller tasks that are easier to estimate and deliver Lets others speak and seek to understand their viewpoints A creative and innovative problem solver & previous experience working in an agile, startup environment Confident in owning your role, and bringing creative ideas to the hands of our users Your skillset Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and productivity optimization. Candidates should demonstrate fluency in integrating AI-driven solutions into their workflows and a willingness to stay current with emerging AI technologies Minimum 5 years of industry experience in backend development, at least 1-2 years in senior positions, developing large-scale applications Experience developing distributed web applications Your code is comprehensible, well-structured, highly performant Experience with database modeling (SQL or NoSQL both OK) Experience with using and designing RESTful services Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and productivity optimization. Candidates should demonstrate fluency in integrating AI-driven solutions into their workflows and a willingness to stay current with emerging AI technologies Strong knowledge of computer science fundamentals, including data structures, algorithms, and object-oriented design Communication Skills Problem Solving, Proactivity Team Player Listening Skills Creativity and Innovation Organization and Planning Dealing with Ambiguity Ownership of projects from start to finish Distributed Web Development Optional BS or MS degree in Computer Science Computer Engineering or similar GCP Kubernetes Docker Mongo Redis Ruby on Rails Microservices Machine Learning This is how we work in house you can change the project you have influence on the choice of tools and technologies you have influence on the technological solutions applied you have influence on the product you develop the code "from scratch" you focus on product development agile Our tech stack: Ruby/RoR, React.js, Typescript, Redux, MongoDB, Elasticsearch, Ansible, Terraform, Grafana, Kibana, Docker, Kubernetes, GCP, GitHub Actions. Development opportunities we offer development budget industry-specific e-learning platforms intracompany training technical knowledge exchange within the company What we offer Base salary + 10% yearly bonus + equity Contract of employment (Polish UoP) + AKUP 50% tax deductible costs with 70% creativity factor for the Eng roles 100% remote work (we don’t have offices and we don’t plan to have them) - no hybrid, no forcing people to get back to the offices Allianz Medical Package and Warta Life Insurance covered by Apollo 1200 USD educational budget 300 USD Work From Home Stipend 4 additional PTO days for Engineering (Rest Days) 100% remote work and flexible working hours AI Learning Budget We are AI Native Apollo.io is an AI-native company built on a culture of continuous improvement. We’re on the front lines of driving productivity for our customers—and we expect the same mindset from our team. If you're energized by finding smarter, faster ways to get things done using AI and automation, you'll thrive here. What You’ll Love About Apollo Besides the great compensation package and culture that thrives in openness and excellence, we invest tremendous effort into developing our remote employees’ careers. The team embraces that we have a sole purpose: to help customers maximize their full revenue potential on the Apollo platform. This mindset opens us up to a lot of creative approaches to making customers successful at scale. You’ll be a significant part of a lean, remote team, empowered to really own your role as a proactive educator. We’re very collaborative at Apollo, so you’ll be able to lean on your teammates, even in adjacent departments, to help you achieve lofty goals. You’ll be supported and encouraged to experiment and take educated risks that lead to big wins. And, you’ll have a whole team remotely by your side to help you do it!

🏢 Summary: Senior Backend Software Engineer role focused on designing and delivering highly scalable, distributed backend systems in a cross-functional, AI-native environment. The position involves full software development lifecycle ownership, architectural decision-making, and mentoring while building performant services from scratch. Engineers work with modern cloud and DevOps tooling in a fully remote, agile setup. 🗂️ Requirements: Minimum 5 years backend development experience, 1–2 years experience in senior-level role, Experience building large-scale distributed web applications, Proficiency in one of: Java, Python, Scala, Go, Elixir, C++, Experience designing and developing RESTful APIs, Experience with SQL or NoSQL database modeling, Strong knowledge of data structures and algorithms, Experience with microservices architecture, Experience with cloud platforms, Experience with Docker and Kubernetes, Experience leveraging AI tools for code generation and debugging, Ability to design highly scalable and highly available systems 📃 Skills: Ruby, RoR, Java, Python, Scala, Go, Elixir, C++, REST, SQL, NoSQL, MongoDB, Redis, Microservices, GCP, Docker, Kubernetes, Terraform, Ansible, Elasticsearch, Grafana, Kibana, GitHub, MachineLearning, AI 🏢 Description: As a Senior Backend Software Engineer , you will be a critical part of our growing company, working on a cross-functional team to implement best practices in technology, architecture, and process. You'll have the chance to work in an open and collaborative environment, receive and give hands-on mentorship and have opportunities to grow and accelerate your career. You love both learning and teaching. In this role, you will be interfacing with design, front-end, analytics, as well as teams outside of Engineering. You enjoy working cross functionally to solve hard problems and make an impact. At Apollo, you strive for quality, and are obsessed with improving quality, automation, and squashing any bugs that sneak through. You have a drive to constantly investigate performance improvements and innovative ideas. This is how we organize our work We’re language agnostic, you don’t need any previous Ruby experience for the backend positions. Any of those programming languages - Java, Python, Scala, Go, Elixir, C++ will be great as you'll learn Ruby during the onboarding Responsibilities Design and implement highly scalable backend endpoints Gather product requirements and write design docs to satisfy product needs Drive/Lead full lifecycle of software development: product requirements, architecture, solution design, development, quality assurance, and maintenance Mentor others on best practices and effectively share knowledge Ability to effectively communicate development progress to the product lead, engineering manager, and other stakeholders Be comfortable introducing new technologies and new ideas as required Work effectively as part of a large global team Attend and engage in scrum ceremony meetings, team parties, and manager 1:1s Provide feedback to co-workers in written and verbal form and respond to technical and behavioral feedback from managers and peers Proactively acts without being told what to do. Able to identify areas of improvement and driving best practices to deliver high quality, performant, and scalable solutions Develops services that are highly available and scalable with proper monitoring and alerting in place Able to up-level the team by sharing knowledge and best practices with the engineering team Able to deal with ambiguity Ownership of projects from start to finish. Just because the project has been deployed doesn’t mean it’s done Organized and able to effectively plan and breakdown large projects into smaller tasks that are easier to estimate and deliver Lets others speak and seek to understand their viewpoints A creative and innovative problem solver & previous experience working in an agile, startup environment Confident in owning your role, and bringing creative ideas to the hands of our users Your skillset Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and productivity optimization. Candidates should demonstrate fluency in integrating AI-driven solutions into their workflows and a willingness to stay current with emerging AI technologies Minimum 5 years of industry experience in backend development, at least 1-2 years in senior positions, developing large-scale applications Experience developing distributed web applications Your code is comprehensible, well-structured, highly performant Experience with database modeling (SQL or NoSQL both OK) Experience with using and designing RESTful services Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and productivity optimization. Candidates should demonstrate fluency in integrating AI-driven solutions into their workflows and a willingness to stay current with emerging AI technologies Strong knowledge of computer science fundamentals, including data structures, algorithms, and object-oriented design Communication Skills Problem Solving, Proactivity Team Player Listening Skills Creativity and Innovation Organization and Planning Dealing with Ambiguity Ownership of projects from start to finish Distributed Web Development Optional BS or MS degree in Computer Science Computer Engineering or similar GCP Kubernetes Docker Mongo Redis Ruby on Rails Microservices Machine Learning This is how we work in house you can change the project you have influence on the choice of tools and technologies you have influence on the technological solutions applied you have influence on the product you develop the code "from scratch" you focus on product development agile Our tech stack: Ruby/RoR, React.js, Typescript, Redux, MongoDB, Elasticsearch, Ansible, Terraform, Grafana, Kibana, Docker, Kubernetes, GCP, GitHub Actions. Development opportunities we offer development budget industry-specific e-learning platforms intracompany training technical knowledge exchange within the company What we offer Base salary + 10% yearly bonus + equity Contract of employment (Polish UoP) + AKUP 50% tax deductible costs with 70% creativity factor for the Eng roles 100% remote work (we don’t have offices and we don’t plan to have them) - no hybrid, no forcing people to get back to the offices Allianz Medical Package and Warta Life Insurance covered by Apollo 1200 USD educational budget 300 USD Work From Home Stipend 4 additional PTO days for Engineering (Rest Days) 100% remote work and flexible working hours AI Learning Budget We are AI Native Apollo.io is an AI-native company built on a culture of continuous improvement. We’re on the front lines of driving productivity for our customers—and we expect the same mindset from our team. If you're energized by finding smarter, faster ways to get things done using AI and automation, you'll thrive here. What You’ll Love About Apollo Besides the great compensation package and culture that thrives in openness and excellence, we invest tremendous effort into developing our remote employees’ careers. The team embraces that we have a sole purpose: to help customers maximize their full revenue potential on the Apollo platform. This mindset opens us up to a lot of creative approaches to making customers successful at scale. You’ll be a significant part of a lean, remote team, empowered to really own your role as a proactive educator. We’re very collaborative at Apollo, so you’ll be able to lean on your teammates, even in adjacent departments, to help you achieve lofty goals. You’ll be supported and encouraged to experiment and take educated risks that lead to big wins. And, you’ll have a whole team remotely by your side to help you do it!

🏢 Summary: Senior Backend Software Engineer role focused on designing and delivering highly scalable, distributed backend systems in a cross-functional, AI-driven environment. The position involves leading full software development lifecycle, building RESTful services, improving performance and quality, and contributing to architectural decisions. Engineers work with modern cloud-native technologies and have strong influence over tools, solutions, and product development in a fully remote setup. 🗂️ Requirements: Minimum 5 years backend development experience, 1–2 years experience in senior-level role, Experience building large-scale distributed web applications, Experience designing and implementing RESTful services, Experience with SQL or NoSQL database modeling, Strong knowledge of data structures and algorithms, Experience with microservices architecture, Experience with cloud platforms, Experience with containerization and orchestration, Proven use of AI tools for code generation and debugging, Ability to design highly scalable and highly available systems, Experience working in Agile environment 📃 Skills: Java, Python, Scala, Go, Elixir, C++, Ruby, SQL, NoSQL, MongoDB, Redis, GCP, Kubernetes, Docker, Microservices, REST, AI, MachineLearning, Terraform, Ansible, Elasticsearch, Grafana, Kibana, GitHubActions 🏢 Description: As a Senior Backend Software Engineer , you will be a critical part of our growing company, working on a cross-functional team to implement best practices in technology, architecture, and process. You'll have the chance to work in an open and collaborative environment, receive and give hands-on mentorship and have opportunities to grow and accelerate your career. You love both learning and teaching. In this role, you will be interfacing with design, front-end, analytics, as well as teams outside of Engineering. You enjoy working cross functionally to solve hard problems and make an impact. At Apollo, you strive for quality, and are obsessed with improving quality, automation, and squashing any bugs that sneak through. You have a drive to constantly investigate performance improvements and innovative ideas. This is how we organize our work We’re language agnostic, you don’t need any previous Ruby experience for the backend positions. Any of those programming languages - Java, Python, Scala, Go, Elixir, C++ will be great as you'll learn Ruby during the onboarding Responsibilities Design and implement highly scalable backend endpoints Gather product requirements and write design docs to satisfy product needs Drive/Lead full lifecycle of software development: product requirements, architecture, solution design, development, quality assurance, and maintenance Mentor others on best practices and effectively share knowledge Ability to effectively communicate development progress to the product lead, engineering manager, and other stakeholders Be comfortable introducing new technologies and new ideas as required Work effectively as part of a large global team Attend and engage in scrum ceremony meetings, team parties, and manager 1:1s Provide feedback to co-workers in written and verbal form and respond to technical and behavioral feedback from managers and peers Proactively acts without being told what to do. Able to identify areas of improvement and driving best practices to deliver high quality, performant, and scalable solutions Develops services that are highly available and scalable with proper monitoring and alerting in place Able to up-level the team by sharing knowledge and best practices with the engineering team Able to deal with ambiguity Ownership of projects from start to finish. Just because the project has been deployed doesn’t mean it’s done Organized and able to effectively plan and breakdown large projects into smaller tasks that are easier to estimate and deliver Lets others speak and seek to understand their viewpoints A creative and innovative problem solver & previous experience working in an agile, startup environment Confident in owning your role, and bringing creative ideas to the hands of our users Your skillset Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and productivity optimization. Candidates should demonstrate fluency in integrating AI-driven solutions into their workflows and a willingness to stay current with emerging AI technologies Minimum 5 years of industry experience in backend development, at least 1-2 years in senior positions, developing large-scale applications Experience developing distributed web applications Your code is comprehensible, well-structured, highly performant Experience with database modeling (SQL or NoSQL both OK) Experience with using and designing RESTful services Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and productivity optimization. Candidates should demonstrate fluency in integrating AI-driven solutions into their workflows and a willingness to stay current with emerging AI technologies Strong knowledge of computer science fundamentals, including data structures, algorithms, and object-oriented design Communication Skills Problem Solving, Proactivity Team Player Listening Skills Creativity and Innovation Organization and Planning Dealing with Ambiguity Ownership of projects from start to finish Distributed Web Development Optional BS or MS degree in Computer Science Computer Engineering or similar GCP Kubernetes Docker Mongo Redis Ruby on Rails Microservices Machine Learning This is how we work in house you can change the project you have influence on the choice of tools and technologies you have influence on the technological solutions applied you have influence on the product you develop the code "from scratch" you focus on product development agile Our tech stack: Ruby/RoR, React.js, Typescript, Redux, MongoDB, Elasticsearch, Ansible, Terraform, Grafana, Kibana, Docker, Kubernetes, GCP, GitHub Actions. Development opportunities we offer development budget industry-specific e-learning platforms intracompany training technical knowledge exchange within the company What we offer Base salary + 10% yearly bonus + equity Contract of employment (Polish UoP) + AKUP 50% tax deductible costs with 70% creativity factor for the Eng roles 100% remote work (we don’t have offices and we don’t plan to have them) - no hybrid, no forcing people to get back to the offices Allianz Medical Package and Warta Life Insurance covered by Apollo 1200 USD educational budget 300 USD Work From Home Stipend 4 additional PTO days for Engineering (Rest Days) 100% remote work and flexible working hours AI Learning Budget We are AI Native Apollo.io is an AI-native company built on a culture of continuous improvement. We’re on the front lines of driving productivity for our customers—and we expect the same mindset from our team. If you're energized by finding smarter, faster ways to get things done using AI and automation, you'll thrive here. What You’ll Love About Apollo Besides the great compensation package and culture that thrives in openness and excellence, we invest tremendous effort into developing our remote employees’ careers. The team embraces that we have a sole purpose: to help customers maximize their full revenue potential on the Apollo platform. This mindset opens us up to a lot of creative approaches to making customers successful at scale. You’ll be a significant part of a lean, remote team, empowered to really own your role as a proactive educator. We’re very collaborative at Apollo, so you’ll be able to lean on your teammates, even in adjacent departments, to help you achieve lofty goals. You’ll be supported and encouraged to experiment and take educated risks that lead to big wins. And, you’ll have a whole team remotely by your side to help you do it!

🏢 Summary: Senior Backend Engineer responsible for designing, building, and maintaining production-grade backend systems that power AI-driven business automation. The role covers full ownership from system design to deployment, focusing on scalable, reliable distributed systems and cloud infrastructure. This is a Warsaw-based, office role with strong emphasis on technical leadership and AI-supported development workflows. 🗂️ Requirements: Senior-level experience in backend engineering on production systems, Strong Python programming skills, Experience with distributed systems concepts, Experience with cloud platforms (AWS, Azure, or similar), Knowledge of SQL and NoSQL databases, Ability to design, implement, and deliver systems to production, Strong written and spoken communication skills, Regular use of AI tools in development workflows 📃 Skills: Python, AWS, Azure, SQL, NoSQL, DistributedSystems, Concurrency, AsynchronousProcessing, APIs, Cloud, GitHubCopilot, OpenAI, Claude, TypeScript 🏢 Description: About Us Many companies want to use AI agents, but these agents often struggle with real business tasks. We solve this problem by building a platform that helps AI understand business rules, workflows, and processes. This allows AI to make better decisions and provide accurate, reliable, and compliant results. Well-known companies from different industries use our technology to automate up to 85% of customer cases, reduce handling time by 20–25%, and complete tasks that used to take hours in just seconds. We also work with leading technology partners and have been recognized for our innovative approach. Our goal is to help people everywhere get better answers through AI. Job Description We are looking for a Senior Backend Engineer who can take ownership of important systems instead of only completing assigned tasks. You will solve complex problems, design backend solutions, build them, and make sure they run well in production. We want someone with strong technical skills, good communication, and the ability to create simple, reliable, and easy-to-maintain systems. This is a product engineering role with responsibility from system design to production. The position is based in Warsaw and requires office work. Responsibilities Design and develop backend services, APIs, data processing, and background tasks for production systems. Turn unclear business needs into clear technical plans and practical solutions. Maintain services after release by improving reliability, monitoring, performance, and fixing issues. Make good decisions about system architecture, data models, interfaces, and future scaling. Write technical documentation, architecture notes, and diagrams when they help the team. Work closely with product managers, frontend engineers, and platform engineers to deliver complete solutions. Improve development processes using AI tools, automation, and internal workflows. Support the team through code reviews, design reviews, and practical technical leadership. Requirements Strong experience as a senior backend engineer working on production systems. Excellent Python skills and the ability to write clean and maintainable code. Good understanding of distributed systems, including concurrency, failure handling, data consistency, asynchronous processing, and service design. Experience with cloud platforms such as AWS, Azure, or similar services. Knowledge of SQL, NoSQL databases, schema design, and performance optimization. Ability to take a project from an idea through design and implementation to production. Strong written and spoken communication skills with the ability to explain technical topics clearly. Regular use of AI tools in everyday development and interest in improving AI-based workflows. Nice to Have Experience with LLM-based applications, search systems, AI infrastructure, or large data pipelines. Knowledge of TypeScript or the ability to contribute to frontend development when needed. Experience guiding other engineers and influencing technical decisions without being a formal manager. What We Offer B2B contract and company stock options. MacBook Pro for work. Modern technology stack and opportunities to contribute to open-source projects. Access to advanced AI development tools, including GitHub Copilot, Claude Code, OpenAI Codex, TypingMind, and MCP servers. Our Culture and Values Our leadership team has strong experience in AI and knowledge management. We have secured more than $60 million in funding and achieved three years of continuous 3x growth. Our work is based on these values: Quality – We aim for excellent work and high coding standards. Momentum – We take initiative and keep projects moving forward. Accountability – We take responsibility and give honest, respectful feedback. Hard Work – We believe great results come from teamwork and consistent effort. Learning Agility – We stay curious, learn from mistakes, and improve every day. Adapt and Thrive – We accept change and see challenges as opportunities. Win Together – We succeed as one team through honesty, openness, and support for our shared mission.

🏢 Summary: Senior or Staff Backend Engineer role focused on architecting and scaling AI-native backend systems for a modern accounting platform. The position involves designing distributed services, building high-performance APIs, and establishing engineering standards to support rapid, reliable product delivery. You will work closely with Product, AI, and Operations teams to develop agentic systems and scalable data pipelines. 🗂️ Requirements: 5–10+ years of backend engineering experience, Proven experience designing, building, and operating production backend systems at scale, Strong expertise in API design, Strong expertise in data modelling, Deep understanding of distributed systems trade-offs, Hands-on experience with AWS or GCP in production, Practical experience with CI/CD in high-frequency deployment environments, Experience implementing testing and deployment strategies, Strong knowledge of observability practices, Experience participating in on-call rotations 📃 Skills: TypeScript, Node.js, React, AWS, GCP, Terraform, PostgreSQL, OpenAI, Azure, CI/CD, APIs, DistributedSystems 🏢 Description: ABOUT THE ROLE We're looking for a Senior or Staff Backend Engineer to own and evolve our backend services as we scale. This is a broad, high-impact role — you'll architect new features, build the systems that underpin our core product, and set the engineering standards that shape how the whole team works. The focus is on building a modern, AI-native developer experience. That means working closely with Product, AI, and Operations teams to design agentic systems, distributed data pipelines, and scalable incident response infrastructure — and doing it in a way that lets the team ship with confidence multiple times a day. WHAT YOU'LL WORK ON Architecture and feature design Partner with Product, AI, and Operations teams to architect new features and complex agentic systems. Make clear architectural trade-offs that balance platform, product, and business goals. Backend services and APIs Build and maintain the backend services and APIs that power the core product. Ensure systems are secure, well-tested, and high performance. Distributed systems Design and implement distributed services to orchestrate data pipelines, automate investigations, and enable incident response at scale. Operational excellence Own operational best practices so the team can ship multiple times a day with confidence. Healthy on-call culture and strong observability are part of what you'll build and maintain. Engineering standards Set the bar for writing, communication, and system design across the team. Your influence will shape how a modern AI-native product is built. WHAT WE LOOK FOR 5–10+ years of backend engineering experience A strong track record designing, building, and operating production backend systems at scale. Deep backend fundamentals Expertise in API design, data modelling, and reasoning about distributed systems trade-offs. You understand the nuances, not just the patterns. AWS or GCP hands-on experience Solid understanding of how infrastructure decisions impact application reliability and performance. You've run things in production, not just designed them. CI/CD in practice Practical experience with testing and deployment strategies in high-frequency shipping environments. Observability and on-call maturity A solid grasp of what good observability looks like and how to build healthy on-call practices that don't burn people out. Bonus Experience at an early-stage or scaling startup. Exposure to modern AI and ML systems. Experience shipping product without a dedicated product manager. TECH STACK TypeScript, React, Node.js, AWS, Terraform, PostgreSQL, OpenAI, Azure AI. The team uses GitHub, Slack, Linear, Figma, and Notion day to day. THE TEAM Small, senior, and in-person. The office is in central Wrocław, next to the main train station. The expectation is 4–5 days a week in the office. Relocation support is available for the right candidate. COMPENSATION & BENEFITS Salary $130,000 – $190,000 USD depending on experience, plus competitive equity. Wellness and commute stipend $100 per month. Hardware Premium hardware provided — MacBook Pro and AirPods. Food Daily in-office lunch and dinner. Time off 20 PTO days plus 9 US public holidays. Relocation Support available for candidates relocating to Wrocław.

🏢 Summary: Freelance Backend Expert role focused on leading end-to-end architecture and cloud infrastructure for IoT projects, with full ownership of technical decisions and backend direction. The position involves designing scalable, production-grade systems on AWS, shaping distributed architectures, and collaborating directly with clients. Initial B2B engagement with potential transition to a permanent core team role. 🗂️ Requirements: 7+ years backend development experience, Experience leading technical direction and architecture decisions, Strong production experience with Node.js, Deep hands-on AWS expertise (EKS, Aurora, DynamoDB, Timestream, S3, IAM), Experience with Kubernetes (EKS), Docker, Terraform, Experience designing distributed systems and event-driven architectures, Experience building data ingestion pipelines, Experience with MQTT or similar IoT messaging protocols, Experience designing CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions), Ability to design and maintain production-grade cloud infrastructure, English B2+ proficiency 📃 Skills: Node.js, AWS, EKS, Aurora, DynamoDB, Timestream, S3, IAM, Kubernetes, Docker, Terraform, MQTT, Jenkins, GitLab, GitHub, CI/CD 🏢 Description: We’re currently seeking a passionate freelance Backend Expert to join our team ASAP. As a freelancer cooperating with intent, you'll have the opportunity to work on diverse IoT projects, leveraging your expertise in backend and cloud technologies. About intent intent has over 15+ years of experience in conceptualizing, designing, and building apps for IoT and connected devices. We act as a specialized think partner for products at the intersection of physical and digital (such as wearables and IoT), working with companies like Oura, BOSE, and McIntosh audio systems. If you’re a backend engineer who doesn’t just build what’s asked but shapes how it’s built, we’d love to talk. We’re looking for someone who can own the technical direction of a project end to end: architecture, infrastructure, trade-offs, and the conversations that come with them. You’d be joining us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. Full capacity from the start. The first three months are about getting to know each other: if it turns out we work well together, we’d love to bring you into our core team with a fixed monthly salary, paid time off, and the whole benefits package. Not a promise, a real possibility we actively root for. Who this role is NOT for If your comfort zone is a well-defined Jira board, clear specs, and someone else making the architectural calls, this isn’t going to work. We’re not hiring a senior developer who executes well. We’re hiring someone who decides what gets built, how it gets built, and why. Someone who walks into a room full of ambiguity and starts creating structure, not waiting for it. If you need a ticket to start moving, if "that’s not in the requirements" is a sentence you use often, if you’d rather not be the one explaining a technical trade-off to a client: we’re probably not your people. We’re AI-native and we expect you to treat AI tools as a daily multiplier, not a gimmick. We look for engineers who ask "why" before "how", who challenge assumptions, and who occasionally break things because they were trying something better. What you’ll do Own and evolve the backend architecture for IoT projects: from data ingestion pipelines to API design to infrastructure decisions Make technical trade-off decisions and defend them clearly to the team and to clients Design and maintain cloud infrastructure on AWS (EKS, Aurora, DynamoDB, Timestream, S3) with production-grade reliability Lead technical discussions: RFCs, architecture reviews, post-mortems. Not because someone asked you to, but because you see the need Mentor other backend engineers, raise the bar on code quality, and set patterns others can follow Collaborate closely with firmware engineers, mobile developers, QA, PMs, and clients Use AI tools as part of your daily workflow, not as a party trick Challenge product and technical assumptions when something doesn’t make sense, even if it means a harder conversation What we’re looking for 7+ years of backend development experience, with a meaningful chunk spent leading technical direction, not just writing code Deep, hands-on AWS expertise: EKS, Aurora, DynamoDB, Timestream, S3, IAM. Not "I set up an EC2 once" Strong Node.js skills in production systems at scale Kubernetes (EKS), Docker, and Terraform: you’ve built and maintained real infrastructure, not just followed tutorials Solid understanding of distributed systems, event-driven architectures, and data pipelines Experience with MQTT or similar IoT messaging protocols CI/CD pipelines you’ve designed yourself (Jenkins, GitLab CI, GitHub Actions) English at B2+ minimum, written and spoken: you’ll be in rooms with US-based clients and you need to hold your own The ability to translate business needs into technical decisions and explain those decisions to non-technical stakeholders Strong opinions, loosely held: you propose direction, you defend it, and you change your mind when the evidence says you should Nice to have Experience leading or bootstrapping a project from scratch as the sole or primary backend engineer Previous IoT, connected device, or hardware-adjacent projects Familiarity with time-series data, real-time streaming, or edge computing patterns Background in system design interviews or architecture review boards Contributions to open-source projects or technical writing that shows how you think Genuine curiosity about the physical devices your code powers, not just the services behind them How we work Fully remote. We have an office in Warsaw if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Depending on the project, occasional evening calls with US-based clients (up to ~20:00) may happen, always scheduled in advance, never a surprise. You’ll be part of the backend/cloud chapter for knowledge-sharing, and simultaneously on a project squad led by a PM for day-to-day delivery. What you’ll get 135-220 PLN/h net B2B, depending on your experience Truly flexible hours (most of the team works 10-18 CET, but you organize your day) Fully remote opportunity Access to our internal knowledge-sharing: tech talks, experiments, side projects A genuine path to the core team: if the first 3 months go well, you get a permanent contract with a fixed monthly salary regardless of project availability, 26 days paid leave, 10 sick days, Saltus medical care, training budget, and mentoring budget No sugarcoating: during the freelance period, there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront. Your first weeks We don’t throw you into the deep end on day one. New engineers go through a structured ramp-up period before landing on target projects: you’ll work alongside the team, get paired with a technical buddy, and tackle progressively bigger challenges so both sides can see how the collaboration feels. Feedback comes early and often: no one waits three months to tell you something isn’t working. We believe in fast, honest signals. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust. Recruitment process The entire process is in English. All interviews are recorded for internal evaluation purposes. Application with a few screening questions HR call (~45 min, casual, recorded) Technical meeting (~90 min, with the technical team) Final feedback within a few days Join Us! 🚀 Be part of groundbreaking IoT projects, shaping the future of cloud and backend technology. If you’re excited about cloud computing, scalable systems, and backend development in innovative projects, this is the place for you! 💡

🏢 Summary: Senior Backend Engineer role focused on designing and owning core ERP subsystems for modern factories using event-driven architecture and DDD. The position involves full ownership of backend architecture, end-to-end feature delivery, and infrastructure in a remote, full-time setup. The engineer will build reliable systems supporting real-world production, warehousing, and traceability workflows. 🗂️ Requirements: 8+ years of software engineering experience, Experience as technical decision-maker for product or subsystem, Strong server-side Node.js expertise, Strong knowledge of Event-Driven Architecture, Strong knowledge of Domain-Driven Design, Strong database design skills with PostgreSQL, Experience with Docker, Experience with Kubernetes, Experience with cloud infrastructure, Fluent in Polish or English 📃 Skills: Node.js, PostgreSQL, Docker, Kubernetes, Cloud, Event-Driven, DDD, ERP 🏢 Description: Senior Backend Engineer (ERP Systems) Build systems used by comapnies around the world. Own the product. Move fast. Remotely. 🌍 Remote 📑 Range: 16 000–24 000 pln net / month ( depending on impact) ⏰ Start : ASAP 📕 Language : Polish or English 💼 Process : 1. Phone screening -> 2. Task -> 3. Deep online call (technical & product) -> 4. Decision 🔍 Workload : Full-time At zt1 we are building the operational nervous system for modern factories : Production, warehouse, orders, traceability, real workflows, real constraints. What to Expect The efficiency of modern manufacturing depends on engineers being able to digitize complex physical workflows quickly and accurately. Our platform is the operational system for factories — impacting production, warehousing, and real-time traceability. You will join a small, elite team as a senior backend engineer of core parts of the system , helping shape the architecture, standards, and long-term direction of the platform using Event-Driven Architecture and Domain-Driven Design. This position comes with real architectural responsibility . You will make and defend long-term technical decisions, protect code quality and system integrity, and design systems that must work reliably in messy real-world conditions. You will own full vertical slices — from domain modeling, through backend and frontend, to infrastructure and deployment — and help build the technical foundations that real factories will rely on every day. What You’ll Do Own the architecture of core subsystems from day one Set engineering standards and patterns Design and implement core production-flow services used daily on factory floors Own end-to-end features from domain modeling → backend implementation → deployment. Your focus will be on translating messy real-world processes into clean, efficient software, optimizing resources across the stack of Node.js, and speeding up the operational workflows our clients face. Increase the reliability of global production lines with robust, thoughtfully engineered backend and frontend solutions. You’ll deal with partial failures, out-of-sync production data, operators skipping steps, and systems that must keep running even when people make mistakes. What You’ll Bring At least 8+ years of experience in software engineering Experience being the technical decision-maker for a product or subsystem Excellent knowledge of server-side Node.js Strong understanding of Event-Driven Architecture, DDD, and database design (PostgreSQL). Experience with Docker, Kubernetes and cloud infrastructure. A product-first mindset with the ability to design systems rather than just implement tasks. Big Plus If You Have Experience in the development of ERP systems Experience in frontend Opinionated views about architecture, DX, and product engineering Experience designing systems used by non-technical users Team & Culture Small, elite, execution-focused team You will work directly with founders on product and technical direction No Jira theater. We write things down, make decisions fast, and refactor regularly. High ownership, high trust, high standards. When applying, it’s great if you include: A link to your LinkedIn profile Your GitHub profile

🏢 Summary: Senior Software Engineer role focused on designing and delivering new features and PoCs end-to-end on a large-scale SaaS and data platform. The position emphasizes backend development in Python, extending a mature system, and leveraging AI/LLM tools to accelerate development and improve engineering workflows. Fully remote with high ownership and impact on product direction. 🗂️ Requirements: 7+ years of Software Engineering experience, Strong experience with Python, Experience with Django, Experience building large-scale production systems, Experience designing and maintaining REST APIs, Strong understanding of distributed systems, Strong understanding of backend architecture, Daily practical use of AI tools and LLMs in development workflows, Experience with cloud environments, Ability to independently design and deliver end-to-end solutions, Professional English proficiency 📃 Skills: Python, Django, REST, API, SaaS, LLM, AI, Cloud, DistributedSystems, Backend 🏢 Description: Does building awesome, innovative products that add up to something meaningful sound like a dream come true? Come join us and make that vision a reality! About We are looking for a product-driven Senior Software Engineer who thrives in fast-paced environments and enjoys turning ideas into practical, user-focused solutions. In this role, you will independently design and deliver new features and PoC end-to-end on top of an existing large-scale SaaS and data platform. Rather than working in a purely greenfield environment, you will extend and evolve a mature platform with new capabilities, focusing on speed, usability, and real customer value. A key part of this role is the daily use of AI and LLM-based tools to accelerate development workflows, prototyping, research, testing, and delivery. We are looking for someone who not only uses AI tools effectively but also understands how to integrate AI reasoning and automation into modern software engineering practices. Responsibilities Independently design, prototype, and deliver new features and PoCs end-to-end Translate product ideas into scalable and user-focused backend solutions Validate technical feasibility and make pragmatic architectural decisions Use AI tools, coding copilots, and LLM-based workflows to accelerate development, experimentation, and delivery Build and maintain scalable backend services and REST APIs using Python (preferably Django) Collaborate closely with Product, Design, and Engineering teams to shape and refine new features Contribute to engineering quality through code reviews, technical guidance, and knowledge sharing Continuously explore and introduce practical AI-driven workflows that improve engineering productivity and delivery speed Our offer Competitive salary on B2B contract Fully remote position Real impact and independence at work Individual career path Work-life balance A non-corporate atmosphere where innovation, personal growth, and teamwork thrive 100+ smart, curious & ambitious engineers What you bring 7+ years of experience as a Software Engineer Strong experience with Python and preferably Django Experience building and maintaining large-scale production systems and REST APIs Strong understanding of distributed systems and modern backend architecture Demonstrated daily use of AI tools and LLMs in real engineering workflows (e.g. code generation, prototyping, refactoring, testing, documentation, automation) Experience integrating with complex platforms and cloud environments Ability to independently deliver solutions with minimal supervision Strong product mindset and focus on solving real user problems Excellent communication and collaboration skills across Product, Design, and Engineering teams Curiosity, ownership, and passion for learning and experimenting with new technologies Professional level of English Nice to Have Experience mentoring or coaching engineers Experience working with data products and related scalability challenges Experience promoting AI-driven engineering practices and helping teams adopt modern AI workflows Benefits International Projects Small Teams Flat Structure Friendly Atmosphere Flexible Hours Individual Career Path We want your TALENT! Don’t hesitate and APPLY! We are happy to tell you more details about this position in a phone call. Our recruitment process is very fast and straightforward to ensure a great experience from the first interview to joining your dream team!