Senior Backend Engineer

🏢 Summary: Opportunity for Mid and Senior Software Engineers to design and build high-performance, scalable backend systems powering global content delivery. The role focuses on event-driven, distributed architectures, technical leadership, and ownership of reliability and scalability for systems used by millions of users. It combines hands-on development with architectural decision-making in a cloud-native environment. 🗂️ Requirements: 4+ years (Mid) or 6+ years (Senior) experience in building scalable backend systems, Proficiency in Kotlin, Python or similar backend language, Experience with modern backend frameworks such as Spring Boot, Experience with relational databases (PostgreSQL or MySQL), Experience with NoSQL databases (DynamoDB or MongoDB), Hands-on experience with microservices architecture, Experience with event-driven systems, Experience with Kafka or similar streaming platform, Experience in API design (REST, gRPC or GraphQL), Hands-on experience with AWS services, Experience with Docker and Kubernetes, Experience with CI/CD pipelines and DevOps practices, Experience with monitoring and observability tools, Production support and incident management experience in distributed systems 📃 Skills: Kotlin, Python, Java, Go, TypeScript, JavaScript, Spring, REST, gRPC, GraphQL, Kafka, Redis, PostgreSQL, MySQL, DynamoDB, MongoDB, AWS, Docker, Kubernetes, Terraform, GitHub, Jenkins, Datadog, Sentry 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. We are looking for a Senior and Mid Software Engineers to join the Content Cloud team . In this role, you will design and build high-performance backend systems that power content delivery across a global platform. You will act as a technical leader within the team, driving architectural decisions, mentoring engineers, and ensuring the reliability and scalability of systems used by millions of users. This is a hands-on role with strong ownership and impact on distributed, event-driven systems at scale. Key takeaways: Stack : Kotlin (main codebase) We're open to: Java/Go/TypeScript/JavaScript, Other tools: REST/gRPC/GraphQL, Kafka, Redis, PostgreSQL/MySQL, DynamoDB/MongoDB, AWS, Docker, Kubernetes Salary : Mid : 21 000 PLN - 23 000 PLN gross on the Contract of Employment Senior: 23 000 PLN - 30 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location : ul. Grzybowska 60, Warsaw Recruitment process : A call with MOTIFE Recruiter Coding interview Panel interviews with the team (coding, architecture, and cross-collaboration interviews, Hiring Manager meeting) Responsibilities: Backend Architecture & Scalability Design and build high-performance, scalable backend services and APIs supporting global content delivery Architect event-driven systems and microservices handling large-scale traffic and real-time interactions Drive system design decisions with a focus on reliability, performance, and security Technical Leadership Lead technical discussions, architecture reviews, and design decisions across teams Define and promote reusable patterns, components, and engineering standards Mentor engineers through code reviews, pair programming, and technical guidance Performance & Reliability Identify system bottlenecks using monitoring, tracing, and load testing tools Optimize performance through data modeling, caching strategies, and query improvements Engineering Excellence Champion best practices including CI/CD, automated testing, observability, and infrastructure as code Maintain high standards for code quality, scalability, and maintainability Continuously improve development processes and system architecture Cross-Functional Collaboration Partner closely with Product, Design, and QA to deliver impactful features Translate business requirements into scalable technical solutions Act as a domain expert within the team and contribute to platform-wide initiatives Requirements: Technical Expertise 6+ years of experience building high-performance, scalable backend systems as Senior/4+ years of experience as a Mid Engineer Strong proficiency in Kotlin, Python, or similar backend languages Experience with modern backend frameworks (e.g., Spring Boot or Python-based frameworks) Strong experience with both relational (PostgreSQL, MySQL) and NoSQL databases (DynamoDB, MongoDB) Hands-on experience with microservices and event-driven architectures Experience with distributed streaming platforms such as Kafka Solid understanding of API design (REST, gRPC, or GraphQL) Cloud & Infrastructure Hands-on experience with AWS services (e.g., S3, DynamoDB, Lambda, SQS, IAM) Experience with Docker and Kubernetes Familiarity with infrastructure and deployment tooling (e.g., Terraform, GitHub Actions, Jenkins) Experience with caching systems such as Redis or Memcached Engineering Practices Strong understanding of CI/CD, DevOps, and Agile methodologies Experience with observability and monitoring tools (e.g., Datadog, Sentry) Proven experience in production support and incident management in distributed systems What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro Apply now If this sounds like your next step, we’d love to hear from you! Please apply via our careers page and submit your CV in English.

🏢 Summary: Mid and Senior Software Engineers are sought to design and build high-performance backend systems powering global content delivery on a large-scale fitness platform. The role focuses on event-driven microservices, architectural leadership, and ensuring reliability, scalability, and performance for systems used by millions of users. This is a hands-on position with strong ownership in distributed systems operating at scale. 🗂️ Requirements: 4+ years backend experience (Mid) or 6+ years (Senior), Proficiency in Kotlin or Python, Experience with Spring Boot or Python frameworks, Experience with PostgreSQL or MySQL, Experience with DynamoDB or MongoDB, Experience with microservices architecture, Experience with event-driven systems, Experience with Kafka, Knowledge of REST, gRPC, or GraphQL APIs, Experience with AWS services, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Experience with Redis or Memcached, Experience with monitoring and observability tools, Production support and incident management experience 📃 Skills: Kotlin, Python, Java, Go, TypeScript, JavaScript, Spring, REST, gRPC, GraphQL, Kafka, Redis, PostgreSQL, MySQL, DynamoDB, MongoDB, AWS, S3, Lambda, SQS, IAM, Docker, Kubernetes, Terraform, GitHubActions, Jenkins, Datadog, Sentry 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. We are looking for a Senior and Mid Software Engineers to join the Content Cloud team . In this role, you will design and build high-performance backend systems that power content delivery across a global platform. You will act as a technical leader within the team, driving architectural decisions, mentoring engineers, and ensuring the reliability and scalability of systems used by millions of users. This is a hands-on role with strong ownership and impact on distributed, event-driven systems at scale. Key takeaways: Stack : Kotlin (main codebase) We're open to: Java/Go/TypeScript/JavaScript, Other tools: REST/gRPC/GraphQL, Kafka, Redis, PostgreSQL/MySQL, DynamoDB/MongoDB, AWS, Docker, Kubernetes Salary : Mid : 21 000 PLN - 23 000 PLN gross on the Contract of Employment Senior: 23 000 PLN - 30 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location : ul. Grzybowska 60, Warsaw Recruitment process : A call with MOTIFE Recruiter Coding interview Panel interviews with the team (coding, architecture, and cross-collaboration interviews, Hiring Manager meeting) Responsibilities: Backend Architecture & Scalability Design and build high-performance, scalable backend services and APIs supporting global content delivery Architect event-driven systems and microservices handling large-scale traffic and real-time interactions Drive system design decisions with a focus on reliability, performance, and security Technical Leadership Lead technical discussions, architecture reviews, and design decisions across teams Define and promote reusable patterns, components, and engineering standards Mentor engineers through code reviews, pair programming, and technical guidance Performance & Reliability Identify system bottlenecks using monitoring, tracing, and load testing tools Optimize performance through data modeling, caching strategies, and query improvements Engineering Excellence Champion best practices including CI/CD, automated testing, observability, and infrastructure as code Maintain high standards for code quality, scalability, and maintainability Continuously improve development processes and system architecture Cross-Functional Collaboration Partner closely with Product, Design, and QA to deliver impactful features Translate business requirements into scalable technical solutions Act as a domain expert within the team and contribute to platform-wide initiatives Requirements: Technical Expertise 6+ years of experience building high-performance, scalable backend systems as Senior/4+ years of experience as a Mid Engineer Strong proficiency in Kotlin, Python, or similar backend languages Experience with modern backend frameworks (e.g., Spring Boot or Python-based frameworks) Strong experience with both relational (PostgreSQL, MySQL) and NoSQL databases (DynamoDB, MongoDB) Hands-on experience with microservices and event-driven architectures Experience with distributed streaming platforms such as Kafka Solid understanding of API design (REST, gRPC, or GraphQL) Cloud & Infrastructure Hands-on experience with AWS services (e.g., S3, DynamoDB, Lambda, SQS, IAM) Experience with Docker and Kubernetes Familiarity with infrastructure and deployment tooling (e.g., Terraform, GitHub Actions, Jenkins) Experience with caching systems such as Redis or Memcached Engineering Practices Strong understanding of CI/CD, DevOps, and Agile methodologies Experience with observability and monitoring tools (e.g., Datadog, Sentry) Proven experience in production support and incident management in distributed systems What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro Apply now If this sounds like your next step, we’d love to hear from you! Please apply via our careers page and submit your CV in English.

🏢 Summary: Senior Software Engineer role focused on designing and operating scalable backend microservices that power AI-driven content features such as search, voice, subtitles, and translations. The position combines hands-on backend development with technical leadership in an agile team, integrating hosted AI/NLP models into production systems. The role emphasizes high availability, performance, and cloud-native architecture in a hybrid work model in Warsaw. 🗂️ Requirements: 6+ years of experience building scalable backend cloud systems, Degree in Computer Science, Engineering, Mathematics or related field, Strong proficiency in Kotlin or Python, Experience with Spring Boot or similar JVM/Python frameworks, Experience designing APIs using REST, gRPC or GraphQL, Experience with relational and NoSQL databases, Hands-on experience with AWS and containerization, Experience with Kubernetes and CI/CD pipelines, Knowledge of distributed systems and system design, Experience with monitoring, performance optimization and production troubleshooting 📃 Skills: Kotlin, Python, Spring, REST, gRPC, GraphQL, PostgreSQL, MySQL, DynamoDB, MongoDB, Elasticsearch, Redis, AWS, Docker, Kubernetes, Terraform, GitHub, Datadog, CI/CD 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. We are looking for a Senior Software Engineer to join the Content AI team in Warsaw. This team applies AI to content-related processes, including search, voice assistant capabilities, subtitles, live captions, translations, metadata tagging, and content generation workflows. In this role, you will act as a technical lead within an agile engineering team, designing and operating scalable microservices that support AI-powered content features. The focus is on backend engineering, production systems, and technical leadership rather than building AI models from scratch. Key takeaways: Stack : Kotlin, Spring Boot, REST, gRPC, GraphQL, PostgreSQL/MySQL/DynamoDB/MongoDB, Elasticsearch, Redis, AWS, Docker, Kubernetes, Terraform, GitHub Actions, Datadog Salary : 26 000 PLN - 32 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location : ul. Grzybowska 60, Warsaw Recruitment process : A call with MOTIFE Recruiter Hiring Manager screening Coding interview Panel interviews with the team (coding, architecture, and cross-collaboration interviews, Hiring Manager meeting) Responsibilities: Design, develop, and operate scalable backend APIs and microservices powering search, voice, subtitles, captions, translations, and content workflows. Lead technical discussions, architecture reviews, design decisions, and task breakdowns within the engineering team. Build services with a focus on high availability, low latency, security, scalability, and maintainability. Work with ML Engineers to integrate hosted NLP, ASR, and AI models into production backend systems. Architect reusable code, libraries, patterns, and standards that can be adopted across teams. Use monitoring, tracing, profiling, and load-testing tools to identify bottlenecks and improve production performance. Champion engineering best practices, including CI/CD, test automation, feature toggles, logging, monitoring, and reliable release processes. Mentor engineers through code reviews, pair programming, technical guidance, and incident response leadership. Requirements: 6+ years of software development experience building high-performance, scalable backend cloud application systems. BS or MS degree in Computer Science, Engineering, Mathematics, or a related technical field. Strong expertise in Kotlin, Python, or similar backend programming languages. Strong experience with backend frameworks such as Spring Boot, Bottle, Gunicorn, or similar JVM/Python frameworks. Experience designing and building APIs using REST, gRPC, or GraphQL. Experience with relational and NoSQL databases such as PostgreSQL, MySQL, DynamoDB, or MongoDB. Hands-on experience with AWS, Docker, Kubernetes, CI/CD, and infrastructure tooling such as Terraform, GitHub Actions, or Jenkins. Strong understanding of distributed systems, Elasticsearch optimization, caching, observability, security, performance optimization, production troubleshooting, and incident response. Nice to have: Experience working on AI-powered products, model-serving systems, or backend services that integrate with ML models. Experience with NLP, ASR, voice assistants, chatbots, search platforms, live captions, subtitles, translations, or content metadata workflows. What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro Apply now If this sounds like your next step, we’d love to hear from you! Please apply via our careers page and submit your CV in English.

🏢 Summary: Senior Software Engineer role focused on designing and operating scalable backend microservices that power AI-driven content features such as search, voice, subtitles, and translations. The position combines backend engineering, cloud infrastructure, and technical leadership within an agile team. You will integrate AI/NLP services into production systems while ensuring high availability, performance, and scalability. 🗂️ Requirements: 6+ years of backend software development experience, BS or MS degree in Computer Science, Engineering, Mathematics, or related field, Strong expertise in Kotlin, Python, or similar backend language, Experience with backend frameworks such as Spring Boot or similar JVM/Python frameworks, Experience designing APIs using REST, gRPC, or GraphQL, Experience with relational and NoSQL databases (PostgreSQL, MySQL, DynamoDB, MongoDB), Hands-on experience with AWS, Docker, Kubernetes, Experience with CI/CD and infrastructure tools such as Terraform, GitHub Actions, or Jenkins, Strong understanding of distributed systems, caching, observability, security, and performance optimization 📃 Skills: Kotlin, Python, Spring, SpringBoot, REST, gRPC, GraphQL, PostgreSQL, MySQL, DynamoDB, MongoDB, Elasticsearch, Redis, AWS, Docker, Kubernetes, Terraform, GitHubActions, Jenkins, CI/CD, NLP, ASR 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. We are looking for a Senior Software Engineer to join the Content AI team in Warsaw. This team applies AI to content-related processes, including search, voice assistant capabilities, subtitles, live captions, translations, metadata tagging, and content generation workflows. In this role, you will act as a technical lead within an agile engineering team, designing and operating scalable microservices that support AI-powered content features. The focus is on backend engineering, production systems, and technical leadership rather than building AI models from scratch. Key takeaways: Stack : Kotlin, Spring Boot, REST, gRPC, GraphQL, PostgreSQL/MySQL/DynamoDB/MongoDB, Elasticsearch, Redis, AWS, Docker, Kubernetes, Terraform, GitHub Actions, Datadog Salary : 26 000 PLN - 32 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location : ul. Grzybowska 60, Warsaw Recruitment process : A call with MOTIFE Recruiter Hiring Manager screening Coding interview Panel interviews with the team (coding, architecture, and cross-collaboration interviews, Hiring Manager meeting) Responsibilities: Design, develop, and operate scalable backend APIs and microservices powering search, voice, subtitles, captions, translations, and content workflows. Lead technical discussions, architecture reviews, design decisions, and task breakdowns within the engineering team. Build services with a focus on high availability, low latency, security, scalability, and maintainability. Work with ML Engineers to integrate hosted NLP, ASR, and AI models into production backend systems. Architect reusable code, libraries, patterns, and standards that can be adopted across teams. Use monitoring, tracing, profiling, and load-testing tools to identify bottlenecks and improve production performance. Champion engineering best practices, including CI/CD, test automation, feature toggles, logging, monitoring, and reliable release processes. Mentor engineers through code reviews, pair programming, technical guidance, and incident response leadership. Requirements: 6+ years of software development experience building high-performance, scalable backend cloud application systems. BS or MS degree in Computer Science, Engineering, Mathematics, or a related technical field. Strong expertise in Kotlin, Python, or similar backend programming languages. Strong experience with backend frameworks such as Spring Boot, Bottle, Gunicorn, or similar JVM/Python frameworks. Experience designing and building APIs using REST, gRPC, or GraphQL. Experience with relational and NoSQL databases such as PostgreSQL, MySQL, DynamoDB, or MongoDB. Hands-on experience with AWS, Docker, Kubernetes, CI/CD, and infrastructure tooling such as Terraform, GitHub Actions, or Jenkins. Strong understanding of distributed systems, Elasticsearch optimization, caching, observability, security, performance optimization, production troubleshooting, and incident response. Nice to have: Experience working on AI-powered products, model-serving systems, or backend services that integrate with ML models. Experience with NLP, ASR, voice assistants, chatbots, search platforms, live captions, subtitles, translations, or content metadata workflows. What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro Apply now If this sounds like your next step, we’d love to hear from you! Please apply via our careers page and submit your CV in English.

🏢 Summary: Mid to senior backend engineer role focused on designing and scaling enterprise-grade backend services and integrations using Node.js and cloud-native technologies. The position involves building high-performance APIs, optimizing databases, leading CI/CD and DevOps practices, and mentoring engineering teams in complex enterprise environments. Fully remote opportunity available as full-time or B2B. 🗂️ Requirements: Minimum 5+ years of backend development experience with Node.js, TypeScript, NestJS, Proven experience designing and scaling RESTful APIs and SOAP services, Advanced PostgreSQL administration including performance tuning, replication, partitioning, Strong experience with Git workflows and CI/CD pipelines, Hands-on experience with AWS services (EC2, EKS, Lambda, S3, RDS, CloudWatch, API Gateway), Solid knowledge of Kubernetes deployment and scaling, Experience with monitoring and observability tools, Experience with infrastructure as code tools, Bachelor’s degree in Computer Science, Software Engineering, or related field 📃 Skills: Node.js, TypeScript, NestJS, PostgreSQL, Citus, Patroni, TimescaleDB, REST, SOAP, Swagger, OpenAPI, Postman, Git, GitHub, GitLab, GitHubActions, Jenkins, SonarQube, ESLint, Prettier, AWS, EC2, EKS, Lambda, Fargate, S3, RDS, CloudWatch, APIGateway, Docker, Kubernetes, Helm, Splunk, Prometheus, Grafana, Spinnaker, ArgoCD, AzureDevOps, Terraform, CDK 🏢 Description: We are seeking a mid to senior level engineer with deep expertise in backend engineering, cloud-native architecture, and enterprise system integration. Key Responsibilities Design, develop, and maintain enterprise-grade backend services using Node.js, TypeScript, and NestJS . Architect and implement high-performance REST and SOAP APIs for complex enterprise integrations. Optimize PostgreSQL databases for high availability, partitioning, replication, and performance tuning. Define and enforce secure coding practices, design patterns, and architectural principles . Collaborate with DevOps, frontend, QA, and product stakeholders to ensure seamless integration and delivery. Troubleshoot production issues, enhance reliability, and implement performance tuning at scale. Lead code reviews, enforce coding standards , and integrate quality gates in CI/CD pipelines. Mentor client engineering teams, contribute to technical strategy and architecture decisions . Integrate external systems, tools, and services to extend backend capabilities. Provide continuous innovation by adopting cloud-native, serverless, and emerging backend technologies . Required Qualifications Minimum 5+ years of backend development experience with Node.js, TypeScript, and NestJS. Proven expertise in designing and scaling RESTful APIs and SOAP services for enterprise-grade systems. Advanced proficiency in PostgreSQL administration (performance tuning, replication, partitioning). Strong experience with Git workflows, CI/CD pipelines, and automated quality controls . Deep understanding of cloud-native architectures and serverless implementations . Hands-on experience with AWS services (EC2, EKS, Lambda, S3, RDS, CloudWatch, API Gateway). Solid knowledge of Kubernetes (deployment, scaling, troubleshooting). Experience mentoring teams and driving technical leadership in multi-stakeholder environments . Expertise with Splunk (monitoring, dashboards, alerting). Familiarity with Spinnaker or advanced deployment pipelines . Education Bachelor’s degree in Computer Science, Software Engineering, or related field (required). Master’s degree preferred but not mandatory. Technology / Systems Expertise Node.js + NestJS + TypeScript – backend framework. PostgreSQL with advanced extensions (Citus, Patroni, TimescaleDB). Swagger / OpenAPI + Postman – API documentation & testing. GitHub / GitLab + GitHub Actions / Jenkins – version control & CI/CD automation. SonarQube, ESLint, Prettier – code quality enforcement. AWS (EC2, EKS, Lambda, Fargate, S3, RDS, CloudWatch, API Gateway) – cloud & serverless stack. Docker + Kubernetes (EKS) + Helm – containerization & orchestration. Splunk, Prometheus, Grafana – monitoring & observability. Spinnaker / ArgoCD/ Azure Devops – automated deployment pipelines. Terraform / AWS CDK – infrastructure as code. Skills & Capabilities Demonstrated expertise in backend architecture and scalable API design . Advanced database optimization & high availability strategies . Strong proficiency in CI/CD, GitOps, and DevOps integration . Hands-on experience in cloud-native and Kubernetes-based deployments . Proven ability to mentor engineers, lead architecture decisions, and drive best practices . All our positions are Remote and are available as Full Time Employment or B2B Contracts.

🏢 Summary: Hands-on Tech Lead role focused on designing and delivering scalable backend platforms and RESTful microservices for a global e-commerce and wellness technology ecosystem. The position involves technical leadership, backend development with Kotlin/Java and Spring Boot, mentoring engineers, and driving architecture decisions in a cloud-native environment. The role offers a hybrid work model in Warsaw with a competitive salary and benefits. 🗂️ Requirements: 6+ years of software development experience, Backend development experience with Java or Kotlin, Experience building and scaling RESTful microservices, Hands-on experience with Spring Boot, Hands-on experience with Docker, Hands-on experience with Kubernetes, Experience with AWS or GCP, Experience with PostgreSQL, MongoDB, DynamoDB, or Elasticsearch, Experience with unit testing and test-driven development, Experience with CI/CD pipelines, Experience leading technical projects and mentoring engineers, Ability to guide architecture decisions and delivery planning, Experience working in agile cross-functional teams 📃 Skills: Kotlin, Java, Spring, SpringBoot, Microservices, Docker, Kubernetes, AWS, GCP, PostgreSQL, MongoDB, DynamoDB, Elasticsearch, CI/CD, Datadog, REST, TDD, DevOps, Agile 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. We are looking for a Kotlin/Java Tech Lead to join an e-commerce engineering team. In this role, you will lead the design and delivery of scalable backend platforms and services powering the company's customer-facing commerce experience across web, retail, and other sales channels. This is a hands-on technical leadership role. You will guide engineering decisions, mentor other engineers, partner closely with product and design, and help the team deliver high-impact initiatives with strong engineering quality, scalability, and reliability. Key takeaways: Stack: Kotlin/Java, Spring Boot, microservices, Docker, Kubernetes, AWS, PostgreSQL, CI/CD, Datadog, technical leadership experience Salary: 26 000 PLN - 30 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location: ul. Grzybowska, Warsaw Recruitment process : A call with MOTIFE Recruiter Panel interviews with the team (coding, architecture, and cross-collaboration interviews) Responsibilities: Technical Leadership Lead the delivery of small to large engineering initiatives, from technical discovery through implementation and production readiness. Guide the team in making strategic backend architecture decisions that support scalability, performance, and long-term maintainability. Own technical trade-offs and ensure solutions are aligned with business goals, user needs, and engineering standards. Mentor engineers through design reviews, code reviews, and day-to-day technical collaboration. Backend Engineering Build and improve backend platforms and services. Design and scale RESTful microservices used across web, retail, and other sales channels. Develop backend services using technologies such as Java, Kotlin, Spring Boot, Docker, and Kubernetes. Work with data stores such as PostgreSQL, MongoDB, DynamoDB, Elasticsearch, or similar technologies. Delivery & Product Collaboration Partner closely with product managers, designers, and peer engineers to scope, build, and deliver end-to-end features. Translate product strategy and business requirements into reliable, scalable technical solutions. Drive iterative delivery in an agile engineering environment. Maintain strong relationships with stakeholders and ensure clear communication around scope, risks, and delivery progress. Engineering Excellence Promote strong engineering practices, including unit testing, test-driven development, CI/CD, observability, and production ownership. Apply a DevOps mindset to build services that are reliable, observable, and easy to operate. Requirements: Technical Expertise 6+ years of professional software development experience. Strong backend engineering experience with Java or Kotlin. Proven experience building and scaling RESTful microservices. Hands-on experience with Spring Boot, Docker, and Kubernetes. Experience with cloud infrastructure such as AWS or GCP. Familiarity with data stores such as PostgreSQL, MongoDB, DynamoDB, Elasticsearch, or similar technologies. Experience with unit testing, test-driven development, and CI/CD pipelines. Leadership Experience Experience leading engineers to deliver high-impact technical projects. Proven ability to mentor junior and mid-level engineers and support their technical growth. Ability to guide technical decision-making, architecture discussions, and delivery planning. Experience with end-to-end feature ownership in a cross-functional product environment. Collaboration & Mindset Strong communication skills and ability to work effectively with product, design, and engineering stakeholders. Agile mindset with a strong focus on iterative design and delivery. High ownership, strong delivery orientation, and ability to operate in a fast-moving engineering environment. Strong desire to learn, share knowledge, and help engineers achieve their highest potential. What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro Apply now If you enjoy technical leadership, hands-on backend engineering, and building platforms used at scale, this role is a strong opportunity to make a real impact. Please apply via our careers page and submit your CV in English.

🏢 Summary: Mid-level Front-end Software Engineer role focused on building scalable, high-traffic web solutions for a large e-commerce platform. The position involves delivering medium to high complexity features, translating product and UX requirements into maintainable code, and contributing to front-end architecture decisions. This is a contractor role with high ownership in a product-driven environment. 🗂️ Requirements: Minimum 10+ years of experience as a Front-end Software Engineer, Strong knowledge of HTML, Strong knowledge of CSS, Strong knowledge of JavaScript, Strong knowledge of TypeScript, Practical experience with React, Ability to develop scalable and maintainable front-end architecture, Experience ensuring code quality, performance, and accessibility, Experience working in cross-functional product teams, Ability to work independently and take technical ownership 📃 Skills: HTML, CSS, JavaScript, TypeScript, React, Accessibility, Performance, Architecture 🏢 Description: For our Client – one of the largest and most recognizable e-commerce platforms in Central Europe, serving millions of users daily and building large-scale, high-traffic digital products – we are currently looking for a Front-end Software Engineer (Mid-level) to join a product-driven environment focused on delivering high-quality, scalable web solutions. 📍 Warsaw - once per 2-3 weeks in the office only 🎯 Your Responsibilities Deliver medium to high complexity front-end features independently Translate product and UX requirements into clean, scalable, maintainable code Collaborate closely with Product Managers and UX/UI Designers Ensure high standards of code quality, performance, and accessibility Take ownership of delivered solutions in a contractor model (high autonomy expected) Contribute to team-level technical decisions and front-end architecture discussions Identify and address front-end technical debt 🔧 Required Experience & Skills Min 10 + years of experiance as a Front-end Software Engineer Solid understanding of HTML, CSS, JavaScript, and TypeScript fundamentals Practical experience with React (preferably with TypeScript) Ability to work independently and take accountability for outcomes Experience collaborating in cross-functional teams ⭐ Nice to Have Experience working on large-scale web applications Experience with cross-team front-end integrations Familiarity with design systems and component libraries Interest in scalable testing practices 🌍 What You Can Expect Long-term cooperation in a contractor model High-impact product environment with millions of end users Real ownership over features and technical solutions Modern engineering standards and strong product culture Occasional on-site workshops and team events 📍 Please note that we will contact only selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ No. 33580)

🏢 Summary: Mid-level Front-end Software Engineer role focused on building scalable, high-quality web features for a large-scale, high-traffic e-commerce platform. The position involves translating product and UX requirements into maintainable React-based solutions while ensuring performance, accessibility, and code quality. The role offers high autonomy and ownership in a contractor model within a product-driven environment. 🗂️ Requirements: 10+ years of experience as Front-end Software Engineer, Strong knowledge of HTML, Strong knowledge of CSS, Strong knowledge of JavaScript, Strong knowledge of TypeScript, Practical experience with React, Ability to deliver medium to high complexity front-end features independently, Experience working in cross-functional teams, Ability to ensure code quality, performance and accessibility standards 📃 Skills: HTML, CSS, JavaScript, TypeScript, React, Accessibility, Performance 🏢 Description: For our Client – one of the largest and most recognizable e-commerce platforms in Central Europe, serving millions of users daily and building large-scale, high-traffic digital products – we are currently looking for a Front-end Software Engineer (Mid-level) to join a product-driven environment focused on delivering high-quality, scalable web solutions. 📍 Warsaw - once per 2-3 weeks in the office only 🎯 Your Responsibilities Deliver medium to high complexity front-end features independently Translate product and UX requirements into clean, scalable, maintainable code Collaborate closely with Product Managers and UX/UI Designers Ensure high standards of code quality, performance, and accessibility Take ownership of delivered solutions in a contractor model (high autonomy expected) Contribute to team-level technical decisions and front-end architecture discussions Identify and address front-end technical debt 🔧 Required Experience & Skills Min 10 + years of experiance as a Front-end Software Engineer Solid understanding of HTML, CSS, JavaScript, and TypeScript fundamentals Practical experience with React (preferably with TypeScript) Ability to work independently and take accountability for outcomes Experience collaborating in cross-functional teams ⭐ Nice to Have Experience working on large-scale web applications Experience with cross-team front-end integrations Familiarity with design systems and component libraries Interest in scalable testing practices 🌍 What You Can Expect Long-term cooperation in a contractor model High-impact product environment with millions of end users Real ownership over features and technical solutions Modern engineering standards and strong product culture Occasional on-site workshops and team events 📍 Please note that we will contact only selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ No. 33580)

🏢 Summary: Senior DevOps Engineer role focused on designing and scaling next-generation CI/CD platforms supporting high-volume builds and deployments across diverse systems (IoT, web, mobile, backend, data, ML). The position combines hands-on platform engineering with technical leadership, driving CI/CD strategy, cloud infrastructure, and developer enablement. The role directly impacts reliability, security, and scalability of developer tooling used by hundreds of engineers. 🗂️ Requirements: 7+ years of experience in software engineering or DevOps, Experience designing and operating large-scale distributed systems, Hands-on experience with AWS, Strong knowledge of Kubernetes and containerized environments, Experience with CI/CD platforms and build systems, Proficiency in at least one programming language: Kotlin, Go, or Python, Experience with Jenkins and GitHub Actions, Experience with Gradle and Artifactory 📃 Skills: Jenkins, GitHub, GitHubActions, Gradle, Artifactory, Kubernetes, AWS, Kotlin, Go, Python, CI/CD, Docker 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. As a Senior DevOps Engineer , you will join the Platform team , responsible for designing and evolving next-generation CI/CD platforms used by hundreds of engineers across the organization. Your work will directly impact how fast, safely, and reliably products are built and delivered across a diverse technology landscape — from IoT and firmware to web, mobile, backend, data, and machine learning systems. This is a senior, hands-on role with strong technical leadership expectations. You’ll influence platform strategy, guide engineering teams in adopting modern CI/CD solutions, and help scale developer infrastructure capable of supporting thousands of daily builds and deployments. Key takeaways: Stack: Jenkins, GitHub Actions, Gradle, Artifactory, Kubernetes, AWS Salary: 27 000 PLN - 33 000 PLN gross on the Contract of Employment Working model: Hybrid - 3x weekly from the office Location: ul. Grzybowska 60, Warsaw Recruitment process: A call with Motife recruiter (30 min) Interview with the Hiring Manager (1h) Interviews panel (debugging / break-fix style interview, architecture or system design discussion; up to 3h in total) Responsibilities: Platform Architecture & CI/CD Design, build, and maintain scalable CI/CD platforms capable of handling high build and deployment volumes Architect and support systems using Jenkins, GitHub Actions, Gradle, and Artifactory Ensure reliability, extensibility, and security of developer tooling Technical Leadership Act as a technical leader within the team, promoting a strong platform-thinking mindset Influence technology investments and architectural decisions across partner teams Support peers in design reviews, execution planning, and complex problem-solving Developer Experience & Enablement Continuously improve self-service infrastructure and automation tooling Partner with internal teams to identify bottlenecks and optimize build and delivery workflows Advocate for best-in-class developer experience across the organization Quality, Standards & Roadmapping Promote best practices in architecture, testing, documentation, and agile delivery Review platform designs, technical decisions, and code to ensure high quality and scalability Contribute to planning and execution of long-term technology roadmaps Requirements: Technical Expertise 7+ years of experience in software engineering or DevOps roles Strong experience designing and operating large-scale, distributed systems Hands-on experience with cloud platforms (AWS preferred) Solid understanding of containerized environments and orchestration (Kubernetes) Programming & Tooling Practical experience with at least one high-level programming language (Kotlin, Go, or Python) Familiarity with modern CI/CD ecosystems and build tooling Experience supporting diverse engineering domains (backend, frontend, mobile, data, IoT) is a strong plus Mindset & Collaboration Strong focus on improving developer experience and productivity Pragmatic approach to engineering, with a deep understanding of trade-offs Confident communicator who enjoys collaborating across teams Comfortable challenging ideas, making compromises, and driving alignment What we offer: 100% paid medical care, Multisport, Creative tax (KUP) Home office allowance MacBook Pro Apply now If you’re excited about building developer platforms that scale, empower teams, and set new standards for engineering excellence — we’d love to hear from you. Apply via our careers page and please submit your CV in English .

🏢 Summary: Senior Full-Stack Engineer role focused on designing and building scalable APIs and microservices that power music-related experiences across a global fitness platform. The position combines backend development in .NET with frontend collaboration in React/Vue, working on distributed systems and real-time features. It involves strong ownership, architectural influence, and delivering high-impact user-facing solutions at scale. 🗂️ Requirements: 5+ years of professional software development experience, Strong knowledge of C#, Strong knowledge of .NET ecosystem, Experience building and maintaining RESTful APIs, Understanding of asynchronous programming, Experience with multithreading, Experience with NoSQL databases, Experience with MongoDB, Familiarity with microservices architecture, Working knowledge of React or Vue.js, Experience with CI/CD pipelines, Experience with automated testing, Understanding of DevOps principles, Understanding of Agile methodologies, Strong focus on code quality and scalability, Professional English communication skills 📃 Skills: C#, .NET, REST, React, Vue, MongoDB, AWS, S3, SQS, Lambda, Microservices, CI/CD, Docker, Kubernetes, RabbitMQ, NServiceBus 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. We are looking for a Senior Full-Stack Engineer (.NET & React) to join the Content Platform team, focused on building systems that power music-related experiences across the product ecosystem. In this role, you will design and develop APIs and backend services that support everything from instructor class planning to real-time music playback during workouts. This is a hands-on engineering role with strong ownership, where you will work on distributed systems, collaborate across teams, and directly impact user-facing features at scale. Key takeaways: Stack : C#, .NET, REST APIs, React/Vue, MongoDB, AWS (S3, SQS, Lambda), microservices Salary : 23 000 PLN - 28 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location : ul. Grzybowska 60, Warsaw Recruitment process : A call with MOTIFE Recruiter Panel interviews with the team (coding, architecture, and cross-collaboration interviews, Hiring Manager meeting) Responsibilities: Backend Development & Architecture Design, build, and maintain scalable APIs and microservices supporting content and music-related features Develop systems for managing music catalogs, class planning tools, and platform integrations Ensure high performance, reliability, and scalability of backend services Technical Excellence Write clean, maintainable, and well-tested code with a focus on long-term sustainability Drive best engineering practices, including CI/CD, automated testing, logging, and monitoring Continuously improve system architecture while avoiding unnecessary complexity Collaboration & Delivery Partner closely with Product, Design, and QA to deliver high-quality features Actively participate in architecture discussions, code reviews, and technical planning Translate UI/UX requirements into reliable backend solutions Engineering Culture Contribute to a culture of code quality, ownership, and continuous improvement Promote practices such as refactoring, pair programming, and iterative development Support knowledge sharing and help evolve engineering standards across the team Requirements: Technical Expertise 5+ years of professional software development experience Strong knowledge of C# and .NET ecosystem Experience building and maintaining RESTful APIs Solid understanding of asynchronous programming and multi-threading Experience with NoSQL databases (e.g., MongoDB) Familiarity with microservices architecture Frontend & Platform Awareness Working knowledge of React, Vue.js, or similar frontend frameworks Understanding of system integration and API-driven development Engineering Practices Experience with CI/CD pipelines, automated testing, and DevOps principles Understanding of Agile and Lean development methodologies Strong focus on code quality, maintainability, and scalability Collaboration & Mindset Strong communication skills in English Ability to work effectively in cross-functional teams Comfortable working in fast-paced, evolving environments Nice to Have Experience with Docker and Kubernetes Familiarity with AWS services (S3, SQS, Lambda) Experience with messaging systems (e.g., NServiceBus, RabbitMQ) What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro