Senior Software Engineer

🏢 Summary: Senior Software Engineer role focused on designing and building scalable backend systems that combine AI automation with human workflows in a regulated healthtech environment. The position involves hands-on system design, workflow orchestration, and development of reliable, auditable AI-powered processes integrated with external platforms. The engineer will lead technical decisions and ensure production-grade reliability, safety, and scalability. 🗂️ Requirements: 6+ years building and maintaining production software systems, Strong experience designing and owning complex backend systems, Strong backend engineering experience, Experience with asynchronous or event-driven distributed systems, Experience with workflow-based systems, Experience integrating AI or LLM-based systems into business workflows, Ability to design scalable, reliable, and auditable systems, Experience working with external or legacy APIs, Ability to overlap 4–5 hours with US time zone, Strong English communication skills 📃 Skills: TypeScript, Node.js, AI, LLM, Anthropic, Claude, APIs, DistributedSystems, EventDriven, Workflows, Backend, Architecture, Monitoring, Testing 🏢 Description: Please Note: Overlap with Central US Time required (until 20-21:00 CEST) We are a health technology company that helps older people and their families apply for important eldercare benefits, including Medicaid, Medicare, and VA programs. We work with healthcare, government systems, and people’s daily lives, so accuracy, reliability, and trust are very important. As the number of patients grows from hundreds to thousands, manual work is no longer enough. We are building AI-powered systems to automate routine tasks while keeping people involved for quality checks, difficult cases, and patient safety. Our goal is to make healthcare operations more scalable without losing the human connection. The Role We are looking for a Senior Software Engineer to lead the design and development of systems that combine AI automation with human workflows. This is an important role close to the core business. It is a fully hands-on position with no management duties or direct reports. You will not only build features, but also design systems, define best practices, and guide technical decisions as we grow. You should feel comfortable solving unclear problems, working closely with operations and product teams, and making smart decisions in a regulated environment. This role is a good fit for someone who enjoys system design, building reliable infrastructure, and taking ownership of their work. What You’ll Work On Designing workflow and orchestration systems for complex operations. Creating AI automations that handle routine tasks safely and send difficult cases to humans. Building systems where AI supports human work before, during, and after tasks. Managing long-running workflows that can last days or weeks. Connecting with external systems such as EVV platforms, insurers, government portals, and older messaging tools. Designing confidence scoring, auditing, and rollback systems for AI processes. Improving system reliability, monitoring, and error handling in production. Responsibilities Lead the technical design and development of scalable backend systems. Make and document architecture decisions with clear trade-offs. Create patterns for collaboration between AI systems and human workers. Work closely with operations teams to understand real-world issues and edge cases. Make sure systems are observable, auditable, and safe to run at scale. Identify technical risks early and suggest solutions. Maintain high standards for code quality, testing, and system design. Share knowledge and help improve the team’s technical standards through reviews and collaboration. What We’re Looking For Required 6+ years of experience building and maintaining production software systems. Strong experience designing and owning complex backend systems. Strong backend engineering skills (we use TypeScript and Node.js, but other languages are welcome). Experience with asynchronous, event-driven, or workflow-based distributed systems. Ability to work with a daily 4–5 hour overlap with the US team (until 20:00 or 21:00 Polish time). Comfortable working with unclear problems and incomplete information. Strong spoken and written English communication skills. Self-motivated with a strong sense of ownership and responsibility. Experience working with AI or LLM-based systems and process automation, such as using Anthropic’s API (Claude) or similar tools in business workflows. Nice to Have Experience in healthtech or other regulated industries. Knowledge of HIPAA and healthcare data privacy and security rules. Experience building systems with strict compliance or audit requirements. Experience with human review workflows. Experience integrating with unstable or legacy third-party APIs. Master’s or PhD in Computer Science, Engineering, or a related field. How We Work Remote-first company. Small, experienced teams with high trust and independence. Strong focus on system accuracy, reliability, and long-term maintenance. Practical and thoughtful use of AI, both for internal development and within our product. Direct connection to real users and operational impact.

🏢 Summary: Senior Software Engineer role focused on designing, building, testing, and deploying cloud-based distributed systems using modern software craftsmanship practices. The position involves end-to-end ownership of microservices-based solutions in a remote-first environment, leveraging cloud platforms and AI-assisted development tools. The offer emphasizes high-quality delivery, clean architecture, and close collaboration with stakeholders. 🗂️ Requirements: 7+ years of commercial experience with Java or Kotlin, Hands-on experience with SQL and NoSQL databases, Understanding of distributed systems, Experience with event-driven architectures, Experience with microservices architecture, Experience with cloud platforms (AWS, GCP or Azure), Experience with automated testing including acceptance and performance tests, Ability to design and deploy cloud-based systems 📃 Skills: Java, Kotlin, SQL, NoSQL, Microservices, AWS, GCP, Azure, TDD, BDD, DDD, AI, Claude, Codex 🏢 Description: We are looking for a Senior Software Engineer who is hungry to deliver quality software at pace, by utilising the latest technology trends and modern Software Craftsmanship techniques. Who are we ? We are a remote-first boutique software house company formed by a group of seasoned software experts (average experience in the team is 12 years). What connected all of us, despite a long-term relationship, is a passion for building Great Software that matters. We believe in people, so this is why the key values of Shaped Thoughts are autonomy and trust. Our people have a real and direct impact on what and how we build things. We put extra effort into ensuring everyone can make a difference and grow among other experts. Qualifications: 7+ years of professional experience with Java or/and Kotlin Hands-on experience with SQL and NoSQL Understanding of distributed systems and event-driven architectures Microservices experience Experience with cloud platforms (AWS / GCP / Azure) Automated testing (including acceptance tests, performance tests) Nice to have: TDD, BDD practitioner Domain Driven Design knowledge AI-assisted software development experience As a part of the team you will : Design, implement, code review, test and deploy a cloud-based systems Develop software from start to finish - you ship it, you run it! Work closely with senior stakeholders on identifying business requirements and shaping the product Deliver quality technical solutions that come from a robust design and clean architecture Build & improve software delivery process using latest tools such as Claude Code or Codex How do we work? We work as a team - all people can freely exchange knowledge and tasks, that’s why we’re looking for strong team players We believe in continuous improvement (Kaizen mindset) We’re happy to share knowledge and spend time learning our domain and new technologies We value asynchronous communication for work, however we meet in person to improve our personal relationships What do we offer ? Being a part of a strong senior team with the ability to learn and exchange knowledge Remote first work environment B2B rate 170-200 PLN / hour dependent on your level of expertise Open bounded B2B contract Recruitment process It consists of the following stages: CV screening Tech screening (45 min) Live coding session (1h) Architecture task (1h) At least one of the stages must be completed on-site in one of the major cities: Wrocław, Poznań, Katowice, Kraków, Warszawa or Gdańsk. We actively encourage AI-assisted development in our daily work. However, during recruitment we want to assess your individual skills - please don't use AI assistance unless explicitly permitted for a given stage.

🏢 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!

🏢 Summary: Senior Software Engineer role focused on developing and maintaining C#/.NET desktop applications for manufacturing and testing systems, including GUI development and hardware integration. The position combines desktop software engineering with Python-based test automation and parallel execution support in complex technical environments. 🗂️ Requirements: Strong experience with C# and .NET, Experience in desktop application development, Experience with WPF and MVVM, Experience with hardware integration and instrument control, Experience integrating Python scripts with .NET applications, Knowledge of multithreading and thread safety, Ability to troubleshoot using logs and system traces 📃 Skills: C#, .NET, WPF, MVVM, Python, Multithreading, GUI, Desktop, Hardware, Automation 🏢 Description: We are looking for a Senior Software Engineer to join a team developing advanced desktop applications for manufacturing and testing environments. This role is a good fit for someone who has strong experience with C#/.NET, enjoys solving complex technical problems, and is interested in combining software development with Python based test automation and hardware integration. ✅ Your responsibilities: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🧠 Our requirements: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🌟 What we offer: Private healthcare Multisport Life insurance Real influence on technical decisions Opportunity to work on a modern AI / ML product platform

🏢 Summary: Senior Software Engineer role focused on developing and maintaining advanced C#/.NET desktop applications for manufacturing and testing environments. The position combines WPF/MVVM GUI development, hardware integration, and integration of Python-based test automation within .NET systems. It involves ensuring application stability, parallel execution, and troubleshooting complex technical issues. 🗂️ Requirements: Strong experience with C# and .NET, Experience developing desktop applications, Proficiency in WPF, Knowledge of MVVM pattern, Experience with hardware integration, Experience with instrument control, Experience with automated test execution, Ability to integrate Python scripts with .NET applications, Understanding of multithreading and thread safety, Ability to troubleshoot using logs and traces 📃 Skills: C#, .NET, WPF, MVVM, Python, Multithreading, Threading, GUI, Hardware, Automation 🏢 Description: We are looking for a Senior Software Engineer to join a team developing advanced desktop applications for manufacturing and testing environments. This role is a good fit for someone who has strong experience with C#/.NET, enjoys solving complex technical problems, and is interested in combining software development with Python based test automation and hardware integration. ✅ Your responsibilities: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🧠 Our requirements: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🌟 What we offer: Private healthcare Multisport Life insurance Real influence on technical decisions Opportunity to work on a modern AI / ML product platform

🏢 Summary: Senior Platform Engineer role focused on building high-performance internal platform products and APIs for a global trading environment, treating infrastructure as software. The position centers on developing production-grade Go/Python solutions, Kubernetes Operators, and automation to enable scalable, resilient systems. It combines platform engineering, SRE practices, and hybrid cloud integration in a low-latency setting. 🗂️ Requirements: 7+ years experience in SRE or Platform Engineering, Strong software engineering mindset, Expert-level Go or Python proficiency, Ability to build full products/services in Go or Python, Deep knowledge of Kubernetes, Experience building Kubernetes controllers/operators, Proficiency in Terraform (IaC), Experience automating SDLC processes, Experience designing RESTful APIs, Experience with observability in distributed systems, Solid understanding of AWS, Experience integrating cloud with on-premises environments 📃 Skills: Go, Python, Kubernetes, Terraform, AWS, REST, SDLC, Observability, IaC 🏢 Description: Senior Platform Engineer Are you an engineer who views infrastructure as a software problem? We are looking for a Senior Platform Engineer to join our global Platform Engineering team. In this role, you won't just be managing cloud resources—you will be architecting and building high-performance internal products that empower our quants and traders to operate at the highest level. The Offer Salary: Up to 50,000 PLN gross/month (UoP). Location: Hybrid ( 3 days a week from our Warsaw office). Impact: Build internal products and APIs that define how our global teams deploy and scale. Modern Tech: Focus on writing production-grade Go/Python and building K8s Operators . Environment: A high-stakes trading sector where engineering excellence and code quality are the standard. Core Responsibilities Product Engineering: Develop and architect common platform solutions with a focus on high-quality, maintainable code. Developer Autonomy: Build internal APIs and custom tooling to streamline the developer experience across the firm. Infrastructure as Software: Write production-grade code (Go/Python) for infrastructure automation, optimization, and custom orchestration. SRE Advocacy: Champion SRE practices by implementing testable, resilient, and highly available software solutions. High-Performance Collaboration: Partner with Quant and Trading teams to optimize service stability and performance in a low-latency environment. Requirements Experience: 7+ years in SRE or Platform Engineering roles with a strong Software Engineering mindset . Coding Mastery: Exceptional skills in Go or Python (you should be comfortable building full products/services, not just basic scripts). K8s Expertise: Deep knowledge of Kubernetes , including orchestration and building custom controllers/operators . Automation: Proficiency in Terraform (IaC) and experience automating complex SDLC processes. System Design: Experience with RESTful APIs and building observability for complex distributed systems. Hybrid Cloud: Solid understanding of AWS and managing integration with on-premises environments. Why Join Us? This isn't a traditional "Ops" role. We are building a platform that functions as a product. If you are a software engineer who is passionate about infrastructure, scalability, and clean code, you will thrive in our culture of technical rigor and innovation. Apply today to help us build the backbone of global institutional investing.

🏢 Summary: Software Engineer role focused on developing AI-powered robotic systems that interact with the physical world, particularly in physical manipulation and warehouse automation. The position involves building modular control systems, designing complex software architectures, and testing solutions in simulations and on real robots. The engineer will solve challenging problems related to robotics, anomaly detection, and system integrations. 🗂️ Requirements: 5+ years of software development experience, Proficiency in Python, Experience designing complex, multilevel software systems, Technical leadership experience, Strong problem-solving skills, Fluent English communication 📃 Skills: Python, AI, Robotics, APIs, ControlSystems, Simulation, UnitTesting, Algorithms, AnomalyDetection, SystemDesign 🏢 Description: Do you get excited when your software actually interacts with the physical world? Are you ready to learn the new exciting world of smart robots? Do you feel tired of working in a big company? Would you like to cooperate with top professionals in our industry? If your answers are mostly yes , then you should keep reading. At Nomagic , we’re on a mission to teach robots the real world. We’re now looking for a Software Engineer , who’s ready to deep dive into the hard problems of physical manipulation (trying to match with software the millions of years of development leading to the human hand + eye) and bring his experience and commitment to our amazing team. Offer essentials: Play with robots every day Salary: 26 000 - 32 000 gross UoP per month + equity Relocation package Truly flexible working hours English-speaking environment Here is why we love this job ourselves, and hope you will enjoy it too: We build robots powered by AI We have them in production at scale and see their real impact on critical operations. We test our code in unit tests, simulations and on real robots! We’re still pretty small, so everyone has a direct impact on the final result Our team has built Google Warsaw, unicorn startups (Climate Corp), tested rocket engines and worked at top companies such as Nvidia or ByteDance. Now we shape the future of smart robotics together! We combine world-class research with top notch engineering and apply it to solve real problems Some of the problems you may try to solve with us: Building modular and expandable control system for the robot actions that can be easily adapted to multiple customer use-cases Use data to build heuristics for handling different categories of items Detecting anomalies, e.g. using a combination of signals to determine if a robot picked more than one item at once or if one item is disassembling Smart placing, tetris-like algorithms for real products Interfaces and APIs for integration with warehouse management systems What skills we’d like you to have: 5+ years of experience in software development Technical leadership skills & experience Great problem solving and proficiency in one of the modern programing languages (we use Python) Experience in designing complex, multilevel software systems Fluent communication in English What should you expect once you apply? 30-minute call with a Recruiter 60 minutes Coding Interview 45 minutes Hiring Manager Interview Onsite - half a day of interviews & discussions at the office We make the final decision after max. 2-3 days after the onsite interview. Important : Feedback after completing the recruitment process.

🏢 Summary: Senior Software Developer role focused on building and evolving a modern mobile healthcare application that supports people with hearing disabilities. The position involves end-to-end development of mobile and backend solutions within a cross-functional, international Agile team. You will drive technical decisions, contribute to architecture, and ensure high-quality, scalable software delivery. 🗂️ Requirements: 5+ years of software development experience, Strong proficiency in C# or .NET MAUI or native Android or iOS development, Experience in mobile application development, Understanding of software architecture and design patterns, Experience with Agile methodologies (Scrum or SAFe), Ability to design and develop backend solutions, Experience with code reviews and automated testing, Fluent English 📃 Skills: C#, .NET, MAUI, Android, iOS, Scrum, SAFe, Architecture, Testing, Backend 🏢 Description: Build technology that truly matters Join our agile product team in Warsaw and help people with hearing disabilities improve their everyday lives through innovative mobile solutions. As part of our R&D organization, you will work on a modern mobile healthcare application connecting cutting-edge hearing technology with intuitive user experiences. About the role As a Senior Software Developer, you will play a key role in shaping, building, and evolving our mobile solutions. Working in a cross‑functional, international team, you will contribute end‑to‑end — from requirement discussions to design, development, testing, and release. Working with us, You will receive full-time work agreement, with a permanent contract after 3 months; flexible working hours; great opportunities for usage of newest technology; a generous benefits package (private medical care, sports card, and more); a Scandinavian-style work culture that values equality, autonomy, and work-life balance — no titles, no silos – pure collaboration. What you will focus on Designing and developing high‑quality mobile and backend solutions Driving technical decisions and contributing to system architecture Delivering new features that improve user experience and product value Collaborating closely with product owners, designers, and other developers Ensuring code quality through testing, reviews, and best engineering practices Investigating and resolving complex technical challenges Mentoring other developers and supporting team growth What we are looking for Solid experience in software development (typically 5+ years) Strong skills in at least one of the following: C# / .NET MAUI Native mobile development (Android and/or iOS) Good understanding of software architecture and design patterns Experience with Agile ways of working (Scrum / SAFe) Focus on quality, maintainability, and clean code Strong communication skills and fluent English Curiosity and motivation to continuously improve What we offer Meaningful work in healthcare technology Modern tech stack and engineering practices Flexible working hours and hybrid setup Private medical care, sports card and other benefits Scandinavian work culture built on trust, equality, autonomy, and work–life balance — no hierarchy, no silos, just true collaboration Opportunities for growth – both technical and leadership

🏢 Summary: Senior Software Engineer role focused on developing and maintaining secure encryption infrastructure across Windows, Linux, and cloud environments. The position involves backend and driver development, Windows application enhancement, CI/CD automation, and server management to support critical production systems. The role combines embedded systems, hardware-software integration, and cloud-based infrastructure in a hybrid Warsaw-based setup. 🗂️ Requirements: Engineering Degree in Electronics or Computer Science, Minimum 5 years of experience in IT, automation, software engineering, or electronics, Strong proficiency in IP networking, Strong knowledge of computer systems, Experience with database management, Proven troubleshooting skills in Python and C++, Experience working in Windows and Linux environments, Fluency in English, Fluency in Polish, Legal right to work in the European Union 📃 Skills: Python, C++, JavaScript, Node.js, Express, Windows, Linux, AWS, Azure, CI/CD, IP, VPN, PKI, SQL, Batch 🏢 Description: Ignite Innovation in Embedded Systems — Redefine the Future of Connectivity and Security! Warsaw-based opportunity with hybrid work model. As a Senior Software Engineer , you will be working for our client, a leading company in the manufacturing industry, focused on the development and deployment of critical encryption infrastructure. You will play a vital role in maintaining and advancing secure server and device solutions across Windows, Linux, and cloud environments. Join us to push the boundaries of hardware-software integration, ensuring robust security and operational excellence in high-stakes production lines. This is your chance to be part of pioneering technological progress. Your main responsibilities: Develop backend solutions in Python and hardware device drivers to support encryption systems. Create new Windows applications based on existing modules, extending functionality and performance. Enhance frontend components mainly supporting existing JavaScript modules in Node.js/Express. Automate CI/CD workflows, develop tests, and streamline deployment processes. Support and improve Windows batch scripts, deploy Windows services, and troubleshoot related applications. Diagnose and resolve issues within Python, JavaScript, and C++ codebases. Identify system risks, propose mitigation strategies, and implement solutions to prevent future problems. Collaborate directly with product development teams on evolving existing solutions and developing new products. Manage Windows and Linux servers on-premises and in the cloud, overseeing network configurations and VPN connectivity. Navigate and maintain cloud-based systems, primarily AWS and Azure. Conduct upgrades and deployment of encryption infrastructure on new production lines. Occasionally travel domestically and internationally (up to 5%). You're ideal for this role if you have: An Engineering Degree in Electronics or Computer Science. At least 5 years of hands-on experience in IT, automation, software engineering, or electronics. Strong proficiency in IP Networking, computer systems, and database management. Proven troubleshooting skills in Python and C++, with experience in Windows and Linux environments. Ability to proactively identify risks and craft effective solutions. Excellent communication and collaboration skills for working with international teams. Fluency in English, both spoken and written, for technical documentation and team interactions. It is a strong plus if you have: (optional) Experience working with Azure or AWS cloud platforms. Background in PKI system development. Language Required for the role: Fluent in English and Polish. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Software Engineer (Python) role in a fully remote Martech/e-commerce project focused on building an AI-powered strategic component, including an API gateway and orchestration layer. The position involves designing and developing data-driven web applications using Python and AWS, with strong emphasis on clean architecture and quality. You will also mentor junior engineers and contribute to product discovery and technical decision-making. 🗂️ Requirements: 7+ years commercial experience with Python, Experience building data-driven web applications, Knowledge of SOLID principles, Experience with Domain-Driven Design, Minimum 2 years experience in Agile (Scrum/Kanban) environments, Experience designing and supporting SQL databases (MySQL, MariaDB, Postgres), Basic knowledge of machine learning algorithms, Ability to work in cross-functional teams, B2 level English proficiency 📃 Skills: Python, AWS, FastAPI, FastMCP, SQL, MySQL, MariaDB, Postgres, LLM, NLP, MachineLearning, Scrum, Kanban, Agile, DDD, SOLID 🏢 Description: Join the e-commerce team as a Senior Software Engineer (Python) and create innovative solutions powered by Artificial Intelligence and Large Language Models! Let’s talk about the role of: 🤓 Senior Software Engineer (Python) Ref. no: SSEP/04/2026/P 🎯 Project: You will take part in building a strategic component in the field of artificial intelligence (API gateway, orchestration layer) for a Martech/e-commerce solutions ecosystem. 99% of new functionalities. 💻STACK: Python, AWS, FastAPI, FastMCP 🏣Industry: Martech/E-commerce 📍 Fully remote, PL. What will you be doing on a daily basis? 🚀Design/architecture, develop, implement, and test web-based applications 🚀Collaborate with Product Design and Product Management to develop applications according to the defined specifications. 🚀Implement new features and maintain the existing codebase. 🚀Follow coding standards and best practices. 🚀Ensure quality, clean, tested code is produced (unit, integration, and other QA tests). 🚀Assist the Support and Engineering team in debugging and troubleshooting software defects 🚀Coach and mentor junior software engineers in the team. 🚀 Help create team and development processes, and selection of tools to assist in these efforts 🚀 Be proactive and contribute to the research and specification phases with Product Managers when exploring new product opportunities and features. What will help you get the job done? 🎯 7+ years of practical experience in the development of commercial-grade web-based software applications using Python. 🎯 Demonstrated proficiency with data-driven web applications. 🎯 Practical use of SOLID programming principles and Domain-Driven Design programming. 🎯 Nice to have: Experience working with Large Language Models (LLMs) and other NLP technologies in a multi-agent system. 🎯 2 or more years of competitive web development experience and working in a Scrum/Kanban/Agile environment. 🎯 Basic knowledge of machine learning methods and algorithms. 🎯 Demonstrated ability to work well with business analysts, programmers, and end users in a cross-functional team. 🎯 Experience with data model design, the implementation, and support of SQL databases (MySQL, MariaDB, Postgres). 🎯 Highly developed communications skills and impeccable written communication skills, a team player with an entrepreneurial spirit. 🎯 At least B2 English proficiency level. We offer you: 🎖️Vacation days, private medical packages (Luxmed or Medicover), and Benefits System (multi-sport). 🎖️ Supportive company culture – flat structure, strong teamwork, and openness to new ideas. 🎖️ Remote-first setup. Do you prefer slippers over shoes, or are you expecting an Amazon delivery? No worries, we’ve got you covered. Hello! I’m Ann, and I am responsible for this recruitment process. If you have any questions, please feel free to reach out. I will be happy to meet you! Contact details: 👩 💻 Anna Drzał 📧 e-mail:anna.drzal@hrcontact.co ☎️ +48 503 922 611 hrcontact.co CAZ: 11828