April 27, 2026

Backend Developer

Senior • Remote

Warsaw, Poland

Growth through diversity, equity, and inclusion. As an ethical business, we do what is right — including ensuring equal opportunities and fostering a safe, respectful workplace for each of us. We believe diversity fuels both personal and business growth. We're committed to building an inclusive community where all our people thrive regardless of their backgrounds, identities, or other personal characteristics.

Tasks:

 

  • Design, develop, and maintain backend services using Python.

  • Build and optimize RESTful APIs and microservices.

  • Work with Microsoft Azure (priority) to design, deploy, and manage cloud solutions.

    (Experience with GCP is acceptable as an alternative.)

  • Implement CI/CD pipelines and automated testing workflows.

  • Work with Docker and Kubernetes in production environments.

  • Collaborate in an Agile/Scrum team and participate in code reviews, planning, and architecture discussions.

 

What We're Looking For:

 

  • Strong commercial experience as a Python Backend Developer (mid–senior level).

  • Hands‑on experience with Azure (App Services, Functions, AKS, Storage, etc.).

  • Experience with FastAPI and/or Django.

  • Proven experience designing RESTful APIs and scalable microservice architectures.

  • Solid understanding of CI/CD, automated testing, and deployment pipelines.

  • Proficiency with Docker and Kubernetes in production.

  • Comfortable working in English and collaborating in cross‑functional teams.

 

Additional Expected Skills:

  • Strong knowledge of SQL/NoSQL databases and data modeling.

  • Understanding of cloud architecture patterns, scalability, and performance optimization.

  • Familiarity with unit, integration, and end‑to‑end testing practices.

  • Proficiency with Git and collaborative development workflows.

  • Awareness of security best practices in cloud and backend environments.

 

 

What Will Set You Apart:

 

 

  • Experience with Databricks or other big‑data/data engineering platforms.

  • Commercial experience with Golang.

  • Full‑stack skills, especially with React.

  • Experience with Infrastructure as Code tools (Terraform, Bicep, ARM templates).

  • Knowledge of event‑driven architectures and messaging systems (Kafka, Azure Service Bus, etc.).

 

Missing one or two of these qualifications? We still want to hear from you! If you bring a positive mindset, we'll provide an environment where you feel valued and empowered to learn and grow.

 

 

We offer:

 

  • Stable employment. On the market since 2008, 1500+ talents currently on board in 7 global sites.

  • “Office as an option” model. You can choose to work remotely or in the office.  

  • Workation. Enjoy working from inspiring locations in line with our workation policy. 

  • Great Place to Work® certified employer.

  • Flexibility regarding working hours and your preferred form of contract.  

  • Comprehensive online onboarding program with a “Buddy” from day 1.   

  • Cooperation with top-tier engineers and experts.  

  • Unlimited access to the Udemy learning platform from day 1.

  • Certificate training programs. Lingarians earn 500+ technology certificates yearly. 

  • Upskilling support. Capability development programs, Competency Centers, knowledge sharing sessions, community webinars, 110+ training opportunities yearly.

  • Grow as we grow as a company. 76% of our managers are internal promotions.  

  • A diverse, inclusive, and values-driven community.   

  • Autonomy to choose the way you work. We trust your ideas.  

  • Create our community together. Refer your friends to receive bonuses.  

  • Activities to support your well-being and health.

  • Plenty of opportunities to donate to charities and support the environment.  

  • Modern office equipment. Purchased for you or available to borrow, depending on your location.

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Aplikuj, jeśli masz : minimum 5 lat komercyjnego doświadczenia w budowie skalowalnych aplikacji webowych, usług backendowych lub systemów klasy enterprise, bardzo dobrą znajomość .NET Framework, ASP.NET MVC, Web API 2, MS SQL, Entity Framework, REST oraz OData, znajomość usług Azure i dobrych praktyk pracy z chmurą, np. Azure App Services, Azure Functions, Cosmos DB, Azure Search, Azure Service Bus czy Azure SQL, dobrą znajomość architektury mikroserwisowej, zarządzania API oraz usług chmurowych wykorzystywanych w systemach enterprise, znajomość metodyk Agile, praktyk DevOps oraz nowoczesnych narzędzi wykorzystywanych w procesie tworzenia oprogramowania, znajomość i umiejętność stosowania Cloud Design Patterns, doświadczenie w budowie aplikacji klasy Enterprise SaaS , wiedzę i doświadczenie w pracy z .NET / C# oraz wzorcami projektowymi, takimi jak Clean Architecture, DDD, CQRS czy Event Sourcing, doświadczenie w projektowaniu i implementacji REST API oraz GraphQL, szczególnie w kontekście API klasy enterprise, znajomość baz wektorowych oraz technik wyszukiwania semantycznego, np. Azure AI Search, w systemach RAG / Retrieval-Augmented Generation, znajomość protokołu MCP / Model Context Protocol lub podobnych protokołów kontekstowych oraz praktyczne doświadczenie z narzędziami ML / AI API w środowiskach produkcyjnych, doświadczenie we wdrażaniu rozwiązań typu AI API Layer , doświadczenie w projektowaniu rozwiązań odpornych na duże wolumeny danych i zapewniających wysoką dostępność, doświadczenie w budowie frameworków lub platform aplikacyjnych, umiejętność analitycznego myślenia, rozwiązywania problemów, prowadzenia inicjatyw technicznych oraz jasnej komunikacji, zainteresowanie nowymi technologiami i śledzenie najnowszych trendów w obszarze chmury, AI i systemów agentowych, znajomość języka polskiego na poziomie C1+ oraz języka angielskiego na poziomie B2+, możliwość pracy w modelu hybrydowym z Białegostoku lub okolic — minimum 3 dni w tygodniu z biura i maksymalnie 2 dni pracy zdalnej), wykształcenie wyższe techniczne, najlepiej informatyczne lub pokrewne. Mile widziane : znajomość wzorców orkiestracji agentów AI, takich jak routing, zarządzanie pamięcią, wykorzystanie narzędzi czy human-in-the-loop, doświadczenie z architekturą multi-tenant, obejmującą separację kontekstu, izolację danych i polityki dostępu w środowiskach SaaS, praktyczna znajomość modeli konwersacyjnych i dialogowych, w tym fine-tuningu, RLHF oraz prompt engineeringu dla LLM, szczególnie w kontekście asystentów AI. Oferujemy: wynagrodzenie 20 000–22 000 PLN brutto miesięcznie na umowie o pracę oraz 18-miesięczną umowę z możliwością przedłużenia, pracę przy rozwoju rozproszonego systemu chmurowego klasy enterprise, w którym AI jest częścią architektury, a nie tylko dodatkową funkcją, realny wpływ na architekturę platformy używanej przez setki tysięcy pracowników, możliwość pracy z nowoczesnymi rozwiązaniami Azure, najnowszymi modelami LLM oraz narzędziami MLOps, przestrzeń do wielokierunkowego rozwoju zawodowego, certyfikacji i wymiany wiedzy, elastyczny model pracy hybrydowej, pakiet benefitów obejmujący prywatną opiekę medyczną i kartę Multisport.

Technology

Dogtronic

Senior Python Developer

Senior

Remote

Lublin, Poland

18,480 - 25,200 PLN

🏢 Summary: The offer is for a Backend Python Developer to enhance and maintain existing microservices-based business systems for a large convenience retail project. The role focuses on developing and optimizing backend services in a cloud environment, implementing new features, and ensuring system performance and reliability. The position involves working with Azure, asynchronous programming, and modern CI/CD and testing practices. 🗂️ Requirements: Experience developing APIs with FastAPI, Practical experience with Microsoft Azure including Azure Functions and Azure Service Bus, Experience with Docker, Experience with SQL and NoSQL databases, Experience with message queues, Knowledge of microservices architecture, Knowledge of event-driven systems, Ability to write asynchronous code in Python, Understanding of CI/CD processes, Experience with unit and integration testing, Experience with Pytest, Knowledge of API security principles including OAuth2 and JWT, Ability to analyze and troubleshoot production systems 📃 Skills: Python, FastAPI, Azure, AzureFunctions, AzureServiceBus, Docker, SQL, NoSQL, Microservices, EventDriven, CI/CD, Pytest, OAuth2, JWT, REST, MessageQueues 🏢 Description: Szukamy osoby, która dołączy do naszego doświadczonego zespołu i będzie wsparciem przy rozwijaniu projektu dla lidera branży sklepów convenience. Będziesz pracować przy istniejących systemach biznesowych - rozbudowywać je, refaktoryzować i wdrażać nowe funkcjonalności. Obowiązki Rozwijanie i utrzymywanie usług backendowych w języku Python w architekturze mikroserwisowej Praca z platformą chmurową Microsoft Azure Optymalizacja wydajności i niezawodności systemów backendowych profilowanie systemów backendowych pod kątem zużycia zasobów Współpraca w ramach Code Review Wymagania Doświadczenie w tworzeniu API w FastAPI Praktyczne doświadczenie w pracy z platformą Azure (szczególnie Azure Functions, Azure Service Bus), Dockerem, bazami danych SQL i NoSQL oraz systemami kolejkowania wiadomości (message queues) Znajomość architektury mikroserwisowej oraz event-driven systems Umiejętność pisania kodu asynhronicznego w python Rozumienie procesów CI/CD oraz doświadczenie w ich stosowaniu Bardzo dobra znajomość testowania oprogramowania (unit, integration) oraz doświadczenie w Pytest Znajomość zasad bezpieczeństwa API (OAuth2, JWT) Umiejętność pracy w środowisku produkcyjnym i analizy problemów systemowych

Healthcare

Momentum

Python Developer

Mid

Remote

Wroclaw, Poland

8,330 - 12,500 PLN

🏢 Summary: Backend-focused Python Developer role building scalable, high-performance web applications using FastAPI or similar frameworks. The position involves designing relational databases, implementing secure communication and authentication mechanisms, and contributing to architectural decisions. You will collaborate with cross-functional teams to deliver reliable, well-tested healthcare-oriented digital products. 🗂️ Requirements: 3+ years of commercial experience in Python development, Strong knowledge of FastAPI, Django or Flask, Experience designing relational databases (e.g. PostgreSQL), Ability to implement REST APIs and WebSockets, Hands-on experience with ORMs (SQLAlchemy or Django ORM), Experience implementing authentication mechanisms (JWT, OAuth, cookie-based), Familiarity with CI/CD pipelines, Experience with Docker and containerization, Knowledge of design patterns and SOLID principles, Proficiency in automated testing 📃 Skills: Python, FastAPI, Django, Flask, PostgreSQL, REST, WebSockets, SQLAlchemy, ORM, JWT, OAuth, CI/CD, Docker, GitHub, GitLab, SOLID, Testing 🏢 Description: About Momentum: At Momentum, we accelerate digital innovation in healthcare. Our mission is to empower HealthTech startups and scaleups by transforming ideas into cutting-edge digital products. We combine deep industry expertise, strategic consulting, and full-stack development to create solutions that drive growth, compliance, and patient impact. We believe in technology that makes healthcare more accessible, efficient, and human-centered. Role overview: Do you love writing clean, efficient Python code and solving complex problems? Join our team and help us build scalable, high-performance applications! We’re looking for a Python Developer who is passionate about backend development and has experience with commonly used frameworks such as FastAPI or Django, this role is for you! You'll have the chance to influence architectural decisions, optimize performance, and collaborate with a talented team of engineers and product experts. If you're a proactive problem solver who thrives in a dynamic environment, we'd love to hear from you! Requirements: Experience in Python (3+ years development experience) Strong knowledge of at least one framework: FastAPI (preferred), Django or Flask. Solid understanding of relational databases design (e.g. PostgreSQL) Ability to implement various ways of communication with client (e.g. REST API, WebSockets) Hands-on experience with Object-Relational Mappers (SQLAlchemy or Django ORM), including designing, optimizing and maintaining database schemas Ability to implement various ways of authentication (e.g. JWT, cookie-based auth, OAuth) Familiarity with CI/CD pipelines (GitHub Actions, GitLab CI or similar) and experience with containerization tools (Docker, Docker Compose). Practical knowledge of design patterns and SOLID principles Proficiency in testing Love for code review Fluent written and spoken English (B2+) Fluent written and spoken Polish (C1+) Nice to have: Practical knowledge of non-relational DBs, cache and message brokers systems Knowledge of Unix systems and shell Experience with Web Server (e.g. Nginx) Knowledge of asynchronous programming in Python (asyncio, async/await) and familiarity with task queues or background job frameworks (e.g. Celery) Familiarity with cloud environments (AWS, GCP or Azure) and basic skills in working with their services Experience in healthtech projects, familiarity with the specific challenges of the industry, such as data privacy regulations (e.g. HIPAA, GDPR in a medical context) or integration with health data standards (e.g. HL7, FHIR), is a big plus Responsibilities: Design and build web applications using Python (FastAPI) Design and implement relational databases Collaborate with cross-functional teams to define, design, and ship new features Write automated tests for your code including edge cases, usability, and general reliability Work on bug fixing and improving performance Continuously discover, evaluate, and implement new technologies What We Value: Clarity in focus and dedication to building digital products that elevate healthcare and improve quality of life. Flair to face challenges with boldness, creativity, and a proactive mindset. Grit to take ownership, stay ambitious, and deliver refined, high-quality solutions. Impact through meaningful innovation that makes pioneering medical discoveries accessible and human-centered. Ability to collaborate efficiently in teams of technical and non-technical individuals, and comfortable working in a dynamic environment with evolving objectives and iteration with users. What we offer: Modern Workspace: We provide a modern and comfortable office environment, right in the heart of Wrocław. Work-Life Harmony: Enjoy flexible working hours, allowing you to find the perfect balance between work and life. Stay Active: Our company Multisport benefit encourages you to stay fit and take care of your well-being. Your Health Matters: Access to private healthcare ensures you're taken care of when you need it most. Remote Support: For our remote team members we offer reimbursement for necessary and the non-necessary office visits. Freedom of choice: We understand that we all have different lifestyles and needs, that's why the Worksmile Cafeteria System gives you access to hundreds of non-wage benefits to choose from. Security and peace of mind: We provide the option to join our comprehensive insurance plan, for your and your loved one’s security. Team Building & Development Fun(d): We believe in the power of fun and development, and microfunds are here to bring some excitement into your work-life or you can access them to develop your skills and gain knowledge. Thinking of applying? Awesome! Here’s what happens next: As a standard, we keep our recruitment processes short and to the point. Here is a detailed breakdown of the workflow for this position: Initial phone interview (20 min): We'll have a quick chat to get to know each other and discuss your experience. It's a great opportunity for us both to see if there's a good fit. Recruitment task: Following the interview, we will send you a short task to complete. You will have three working days to complete and return it. Technical interview (45-60 min): If your task is successful, you'll be invited to a technical interview. You will meet with a senior team member to dive deeper into your technical knowledge and discuss your solution. Culture fit meeting (20-30 min): Next, you'll have a relaxed chat with our IT Team Manager and a recruiter. We'll talk about our company values and see if your working style aligns with ours. Work reference: After that, we'll ask you to share a work reference. Decision and feedback: After all the stages are complete, we'll get back to you with our final decision and detailed feedback on your application. If you have any questions, get in touch with us!

Technology

ASTEK Polska

Lead AI Software Developer

Senior

Remote

Wroclaw, Poland

1,600 - 2,000 PLN

🏢 Summary: The offer is for a backend-focused AI Engineer role building a modern AI platform for business process automation and multi-agent system integration in a production-grade enterprise environment. The position centers on developing scalable Python-based services, secure API integrations, and cloud-native AI solutions using LLMs and RAG. The role involves designing robust, secure, and scalable architectures deployed on AWS or Azure with containerized infrastructure. 🗂️ Requirements: Extensive experience in backend development with Python in production environments, Hands-on experience with AI Agents, RAG, MCP, or LLM-based solutions, Experience with system integrations and API architecture, Experience with scalable cloud-based applications, Experience with AWS or Azure, Experience with Docker and Kubernetes, Experience designing secure and scalable enterprise solutions, Experience with multi-agent systems and workflow automation, Ability to conduct code reviews and mentor developers, Fluent English and Polish 📃 Skills: Python, LLM, RAG, MCP, AWS, Azure, Docker, Kubernetes, API, Microservices, Cloud, AI, Agents 🏢 Description: Additional information The project focuses on building and developing a modern AI platform supporting business process automation and the integration of intelligent agents with enterprise systems. The team is creating scalable solutions based on Python, cloud technologies, and multi-agent architecture, leveraging technologies such as LLMs, RAG, and advanced workflow automation. A key aspect of the project is designing secure integrations between AI platforms, internal systems, and external APIs within a production-grade environment. The project is delivered in an international technology-driven environment with a strong focus on innovation, high-quality architecture, and the development of cutting-edge AI solutions for a global industrial organization. You’re ideal for this role if you: Have extensive experience in backend development with Python in production environments Have hands-on experience with AI technologies such as AI Agents, RAG, MCP, or LLM-based solutions Understand system integrations, API architecture, and scalable cloud-based applications Have worked with AWS or Azure and containerized environments such as Docker and Kubernetes Are experienced in designing secure and scalable enterprise solutions Have strong problem-solving skills and can proactively remove technical blockers Enjoy working closely with cross-functional teams in an international environment Have experience mentoring developers, conducting code reviews, and promoting engineering best practices Are interested in modern AI architectures, workflow automation, and multi-agent systems Communicate fluently in English and Polish and feel comfortable working in a global setup Your day-to-day responsibilities include:​ Designing and developing scalable backend services and AI-driven integration solutions in Python Building and maintaining APIs, connectors, and middleware between AI platforms and enterprise systems Creating and optimizing multi-agent workflows and intelligent automation processes Collaborating with AI Engineers, Data Engineers, and other technical stakeholders on system architecture and integrations Integrating external AI platforms, internal tools, and cloud services into production environments Working with cloud technologies and containerized infrastructure in AWS or Azure environments Improving the quality, reliability, and performance of AI-powered solutions and LLM-based workflows Conducting code reviews, mentoring team members, and supporting engineering best practices Troubleshooting technical issues, identifying bottlenecks, and driving continuous improvements Contributing to technical documentation, architecture discussions, and innovation initiatives across the team

Technology

CLOUDFIDE

Frontend/Fullstack Engineer

Senior

Remote

Warsaw, Poland

🏢 Summary: Fullstack role focused on designing and delivering scalable web applications using React on the frontend and Python on the backend, deployed in cloud environments. The position covers end-to-end development from architecture to deployment, with strong emphasis on performance, APIs, and modern best practices. 🗂️ Requirements: 3+ years of professional software development experience, Very strong proficiency in React, Very strong proficiency in JavaScript, Very strong proficiency in TypeScript, Very strong proficiency in Python, Experience in backend development, Experience with cloud platforms (Azure, AWS, or GCP), Strong knowledge of RESTful APIs, Understanding of microservices architecture, Experience with Git, Knowledge of web application security best practices 📃 Skills: React, JavaScript, TypeScript, Python, REST, Microservices, Azure, AWS, GCP, Git, FastAPI, Django, Flask, Docker, Kubernetes, Redux, Zustand, MobX, Jest, Pytest, SQL, NoSQL 🏢 Description: You are A Frontend/Fullstack Developer with 3+ years of experience, combining deep React expertise with strong Python backend skills. You're passionate about building scalable, modern web applications and thrive in cloud environments. Here, it's not about ticking boxes – it's about thinking outside the box. Your impact zone Design and develop full-stack solutions using React and Python, from concept to deployment Architect scalable frontend applications with a focus on performance and user experience Build and maintain robust backend services and APIs using Python Lead technical discussions and mentor junior developers Collaborate with cross-functional teams to deliver high-quality solutions Deploy and manage applications in cloud environments Conduct code reviews and ensure best practices across the stack Share your knowledge and learn from the best – together, we rise! Qualifications & tech toolbox Must-have: 3+ years of professional development experience Very strong proficiency in React and modern JavaScript/TypeScript Very strong proficiency in Python and backend development Solid experience with cloud platforms (Azure, AWS, or GCP) Strong understanding of RESTful APIs and microservices architecture Experience with version control systems (Git/GitHub) Knowledge of web application security best practices Extra stardust for: Hands-on experience with Microsoft Azure services (App Service, Azure Functions, Storage, Azure DevOps) Experience with Python frameworks like FastAPI, Django, or Flask Familiarity with containerization (Docker, Kubernetes) Knowledge of CI/CD pipelines and DevOps practices Experience with state management libraries (Redux, Zustand, MobX) Testing experience (Jest, Pytest, React Testing Library) Database experience (SQL and NoSQL) Here's why you'll love Cloudfide Benefits : MyBenefit / Multisport Enel‑Med private medical care Professional Growth: 2,000 PLN development budget per year Clear opportunities to take ownership, lead strategic work, and grow into broader leadership roles Work Environment: Long-term partnership via UOP, UZ, or B2B depending on your preference Remote-first, with the possibility to work from anywhere Flexible hours and strong support for work-life balance Work with top-tier specialists and domain experts (direct collaboration with C-level) Flat structure, open culture, and a team that genuinely roots for each other Culture & Integration: Whole-company integration trips (including international ones) Open, supportive, and collaborative culture Full creative ownership - this is your brand to build, with the support of leadership behind you A fast-growing company where fresh ideas are not just welcomed  they're expected Equal opportunities Cloudfide is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.