April 9, 2026

Senior Python Developer

Senior • Remote

140 - 160 PLN

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 Senior Python Developer who thrives in autonomy and enjoys building things from scratch — someone who prefers ownership over working in large, structured teams.

In this role, you’ll independently deliver MVP features and Proofs of Concept end-to-end, building on top of an existing large-scale SaaS and data connector platform. This is not a typical corporate setup — we’re looking for someone with a startup mindset, who moves fast, experiments, and takes full responsibility for what they build.

A key part of this role is the practical use of LLMs and AI tools in everyday development — to accelerate prototyping, coding, research, and validation.

Responsibilities

  • Independently design and build MVP features and PoCs end-to-end

  • Take full ownership of solutions — from idea to production

  • Validate technical feasibility and make pragmatic architecture decisions

  • Leverage LLMs and AI tools to speed up development and exploration

  • Write clean, maintainable, production-ready Python code

  • Integrate with cloud services and CI/CD pipelines

  • Collaborate with product/design when needed — but stay highly autonomous

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

  • 4+ years of commercial experience with Python

  • Strong backend focus and experience building scalable systems

  • Experience working in startups or small teams — comfortable being a “go-to” person

  • Ability to work independently and take full ownership of projects

  • Hands-on experience using LLMs/AI in development workflows (e.g. prototyping, code generation, research)

  • Product mindset, speed, and pragmatism

  • Basic knowledge of frontend (e.g. React, TypeScript) is a plus, not required

  • Strong communication skills and proactive attitude

  • Professional level of English

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!

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Remote

Warsaw, Poland

🏢 Summary: Senior Python Developer role focused on building microservice-based applications, deploying AI/ML solutions to production, and collaborating with Data Science teams. The position involves working with Kubernetes/OpenShift, CI/CD pipelines, and modern AI technologies such as LLM and RAG while contributing to architectural standards and mentoring. 🗂️ Requirements: 5+ years commercial experience as Senior Python Developer or Technical Leader, Strong knowledge of Python, Experience with FastAPI, Knowledge of microservice architecture, Experience with LLM/RAG solutions, Experience with LangChain, LlamaIndex or LangGraph, Practical knowledge of Docker, Experience with Kubernetes or OpenShift, Knowledge of Git, Experience with CI/CD processes, Experience with pytest, Experience with REST API, Experience with Kafka, Experience with Data & AI solutions, Knowledge of cybersecurity principles, Knowledge of observability, Knowledge of secure application design 📃 Skills: Python, FastAPI, Microservices, LLM, RAG, LangChain, LlamaIndex, LangGraph, Docker, Kubernetes, OpenShift, Git, CI/CD, Tekton, ArgoCD, pytest, REST, Kafka, AI, Cybersecurity, Observability, Podman, Helm 🏢 Description: Dla naszego klienta z branży energetycznej poszukujemy osoby na stanowisko Senior Python Developer (k/m) . Osoba na tym stanowisku będzie odpowiadać za projektowanie i rozwój nowoczesnych aplikacji opartych o architekturę mikroserwisową oraz wspierać wdrażanie rozwiązań AI i Machine Learning do środowiska produkcyjnego. To rola łącząca kompetencje software engineering, architektury systemów oraz współpracy z zespołem Data Science, z realnym wpływem na standardy technologiczne i jakość rozwijanych rozwiązań. Opis stanowiska: Projektowanie i rozwój aplikacji w Pythonie w architekturze mikroserwisowej. Produkcjonalizacja rozwiązań AI/ML (w tym RAG i LLM) tworzonych przez zespół Data Science. Wdrażanie aplikacji na Kubernetes/OpenShift z wykorzystaniem CI/CD (Tekton, ArgoCD). Współtworzenie standardów architektonicznych, code review oraz mentoring zespołu. Współpraca z zespołami Data Science i Cyber Security oraz tworzenie dokumentacji technicznej. Wymagania: Min. 5 lat doświadczenia komercyjnego jako Senior Python Developer lub Technical Leader. Bardzo dobra znajomość Python, FastAPI oraz architektury mikroserwisowej. Doświadczenie z LLM/RAG oraz narzędziami takimi jak LangChain, LlamaIndex lub LangGraph. Praktyczna znajomość Docker, Kubernetes/OpenShift, Git oraz procesów CI/CD. Doświadczenie z testami (pytest), REST API, Kafka oraz rozwiązaniami Data & AI. Znajomość zasad cyberbezpieczeństwa, observability oraz bezpiecznego projektowania aplikacji. Mile widziane: Doświadczenie liderskie lub mentoringowe. Znajomość Podmana i Helm. Doświadczenie w prowadzeniu szkoleń technicznych i rozwijaniu standardów zespołowych. To oferujemy: Pracę w renomowanej organizacji (ITwiz BEST100), działającej w oparciu o międzynarodowe standardy jakości i bezpieczeństwa (ISO 9001, ISO 27001) ·       Niekorporacyjną atmosferę i płaską strukturę organizacyjną ·       Możliwość ciągłego rozwoju poprzez: ·       pracę z wykorzystaniem różnorodnych technologii w projektach dla renomowanych klientów ·       współpracę z doświadczonym zespołem ekspertów, którzy chętnie dzielą się wiedzą ·       dofinansowanie do szkoleń i certyfikatów ·       Program Poleceń Pracowniczych ·       Kulturę organizacyjną opartą na wartościach: ·       działamy z dobrą intencją ·       dzielimy się wiedzą ·       bierzemy odpowiedzialność ·       stale się doskonalimy ·       ludzie są dla nas najważniejsi ·       działamy, znając cel i sens naszej pracy ·       komunikujemy się szczerze i profesjonalnie ·       Udział w inicjatywach dobroczynnych, w tym współpracę z Fundacja im. Joanny Radziwiłł "Opiekuńcze Skrzydła" oraz udział w świątecznej akcji „Gwiazdorzymy” ·       Różnorodne i inkluzywne środowisko pracy – w naszej firmie współpracują przedstawiciele czterech pokoleń ·       Równe szanse rozwoju – 50% stanowisk menedżerskich i liderskich zajmują kobiety ·         Opieka medyczna LUX-MED, dofinansowanie 50% do karty Multisport, dofinansowanie do nauki języków oraz dostęp do platformy wellbeingowej

Technology

Ntiative

Senior Python Developer

Senior

Hybrid

Warsaw, Poland

24,000 - 50,000 PLN

🏢 Summary: Opportunity for a Senior Python Developer to build advanced risk management platforms for global financial institutions within demanding trading environments. The role focuses on developing scalable backend systems, contributing to cloud-based architectures, and collaborating with international clients and senior engineers. It offers high technical ownership, exposure to quantitative finance, and work across multiple modern technologies. 🗂️ Requirements: Strong commercial experience in Python backend development, Degree in Computer Science, Mathematics, Physics, or related field, Solid understanding of software architecture, algorithms, and data structures, Experience with cloud platforms (AWS, Azure, or GCP), Ability to work across multiple programming languages and tech stacks, Confident English communication skills, Willingness to work in hybrid model (4 days in Warsaw office) 📃 Skills: Python, Go, Rust, C++, TypeScript, AWS, Azure, GCP, Algorithms, DataStructures, Cloud 🏢 Description: 💎 Senior Python Developer 💎 A rare opportunity has arisen for an ambitious, highly technical Senior Python Developer to join an elite engineering team building advanced risk management solutions for global financial institutions. In this role, you will work on complex backend systems used within highly demanding financial and commodities trading environments, collaborating closely with top-tier engineers and international clients. You will contribute to the development of scalable risk platforms while working across modern cloud infrastructure and multiple programming languages. If you enjoy solving difficult engineering problems, working alongside exceptionally strong developers, and building software with real business impact… Feel invited! This role offers a unique combination of technical depth, ownership, and exposure to the world of quantitative finance. WHAT WE OFFER B2B contract Competitive salary + biannual bonus Flexible working hours Hybrid work - 4 days from the office located in Warsaw Work closely with experienced engineers from top financial and technology companies International projects and collaboration with global clients Opportunity to grow within a highly technical, developer-driven culture YOUR ROLE Develop and maintain backend systems primarily in Python Build and extend risk management software for financial institutions Design scalable and maintainable solutions for complex business requirements Collaborate directly with international clients and technical stakeholders Work across multiple technologies including Python, Go, Rust, C++, and TypeScript Contribute to cloud-based solutions running on AWS and Azure Participate in architectural discussions and technical problem solving Continuously improve platform reliability, performance, and scalability IF YOU ARE A PERSON WHO Has strong commercial experience with Python backend development Holds a degree in Computer Science, Mathematics, Physics, or a related field Has solid understanding of software architecture, algorithms, and data structures Feels comfortable working across multiple programming languages and tech stacks Communicates confidently in English and enjoys working directly with clients Has experience with cloud platforms such as AWS, Azure, or GCP Understands financial systems or has previous exposure to financial markets (nice to have) Thrives in highly collaborative, engineering-driven environments Enjoys solving complex technical challenges together with the team in the office Congrats! This offer is especially for YOU!

Technology

TechnipFMC

Senior Python Developer

Senior

Hybrid

Krakow, Poland

🏢 Summary: B2B contract opportunity for a Senior Python Developer to design, build, and maintain backend and frontend applications in the energy sector, with a focus on sustainable solutions. The role involves full lifecycle development, CI/CD pipeline management, and deployment to AWS in a globally distributed team. Candidates will work with modern technologies including Python, React, PostgreSQL, and GitHub Actions. 🗂️ Requirements: Bachelor's degree in Computer Science or related field, Minimum 5 years of experience as Software Developer, Strong knowledge of Python, Strong knowledge of React, Strong knowledge of Material Design, Strong knowledge of PostgreSQL, Experience with NumPy, Experience with SciPy, Experience with Playwright for end-to-end testing, Experience with GitHub Actions, Experience with AWS infrastructure, Experience with Jira, Experience with Confluence 📃 Skills: Python, React, Material, PostgreSQL, NumPy, SciPy, Playwright, GitHub, AWS, Jira, Confluence, CI/CD 🏢 Description: Senior Python Developer We are looking for a Senior Python Developer TechnipFMC is a dynamic and innovative energy provider that is leading the way in developing cutting-edge technology solutions for the energy industry. Our mission is to create sustainable and efficient solutions that benefit our planet and help us stay ahead of the curve in a rapidly evolving industry. We are currently seeking a Python Software Developer on a B2B contract to join our team and help us continue to push the boundaries of what is possible. Job Description Design, develop, and maintain backend and frontend applications. Create and manage databases using PostgreSql. Develop and maintain frontend applications using React, Material Design. Manage code repositories using GitHub Actions. Build and maintain CI/CD pipelines using GitHub Actions. Deploy applications to AWS. Work in a "you-build-it-you-run-it" mentality. Work on sustainable and efficient solutions to reduce our carbon footprint in the gas and oil industry. Work in globally distributed teams. Look with your feet. Go and see. Travel if needed. You are meant for this job if: Bachelor's degree in Computer Science or related field. Minimum of 5 years of experience as a Software Developer. Strong understanding of Python, React, Material Design, and PostgreSql. Experience with NumPy/SciPy. Experience with end-to-end testing using Playwright. Experience with code repositories such as GitHub Actions. Experience with pipeline tools such as GitHub Actions. Experience with AWS infrastructure. Experience with task management tools such as Jira. Experience with documentation tools such as Confluence. Interest in sustainable and efficient solutions for reducing carbon footprint in the gas and oil industry.

Technology

N-iX

Senior Python Software Engineer (with GenAI)

Senior

Remote

Krakow, Poland

5,700 - 6,700 USD

🏢 Summary: Senior Python Engineer role focused on owning backend architecture, leading technical decisions, and delivering scalable high-load systems with AI-powered features such as chatbots and voice-to-text integrations. The position combines hands-on backend development with team leadership, emphasizing architecture, scalability, and production reliability. You will drive backend strategy, mentor engineers, and ensure robust AI/LLM integrations aligned with product goals. 🗂️ Requirements: 5+ years of software development experience, Strong hands-on experience with Python 3 and asynchronous programming, Experience with FastAPI or Django DRF, Experience designing microservices or modular architectures, Strong knowledge of PostgreSQL, Experience with Redis or MongoDB, Experience with vector databases, Experience with pytest and TDD/BDD principles, Experience with Docker and CI/CD pipelines, Experience with Kubernetes, Experience with AWS or GCP or Azure, Knowledge of clean code and SOLID principles, Experience with typing and type checking, Experience with scalability and production monitoring, Experience building GenAI or LLM-powered products 📃 Skills: Python, FastAPI, Django, PostgreSQL, Redis, MongoDB, Qdrant, pytest, Docker, Kubernetes, AWS, GCP, Azure, CI/CD, mypy, Pydantic, LangChain, LlamaIndex, LLaMA, Mistral, Mixtral 🏢 Description: We are looking for Senior Python Engineer to take ownership of backend architecture, technical leadership, code quality, and team development. You will work on complex backend systems, design scalable architectures, and lead a talented engineering team, collaborating closely with business stakeholders to translate requirements into robust technical solutions. You will play a key role in shaping the product roadmap, making strategic architecture decisions, and ensuring that delivery aligns with business goals. A key component of the initiative is the development of internal AI-powered capabilities, including a generic chatbot and voice-to-text features. You will provide technical leadership for AI integrations, ensuring scalable, maintainable, and performant systems. Basic German is a plus, but your expertise in strategy, technical leadership, and hands-on delivery is what matters most. Why Join Us: Lead a high-impact project with real public-sector relevance Take ownership of architecture and system design end-to-end Influence the product roadmap and technical direction Work with a talented, collaborative engineering team Contribute to AI-driven, innovative features with large-scale impact Responsibilities: Own backend architecture and technical decisions for scalable, high-load systems Lead the team in designing, implementing, and maintaining backend services and APIs Guide technical design reviews, code quality, and engineering best practices Balance hands-on development (~40–60%) with leadership and mentoring (~40–60%) Oversee scalability, performance optimization, and reliability of production systems Lead incident response, bug fixing, and production issue resolution Provide technical guidance for AI/LLM-powered features, such as chatbots and voice-to-text integration Collaborate closely with Product, Frontend, and AI/ML teams to translate requirements into technical solutions Drive adoption of observability, monitoring, and testing standards across the team Mentor and support engineers to foster team growth and knowledge sharing Must-Have Skills: 5+ years experience in Software Development Strong product mindset with experience in team organization, task prioritization, and project planning Ability to make and own technical and architectural decisions Strong problem-solving and proactive approach Excellent communication and interpersonal skills for cross-team collaboration Strong analytical and organizational abilities; able to manage dependencies, risks, and cross-team planning Hands-on experience with Python 3, including asynchronous programming Experience with backend frameworks (FastAPI, Django DRF) Experience designing and developing microservices or modular architectures Strong knowledge of relational (PostgreSQL) and NoSQL (Redis, MongoDB) databases Experience with vector storage (e.g., Qdrant) Understanding of testing strategies (pytest, TDD/BDD principles) Familiarity with Docker, CI/CD pipelines, and production deployments Strong experience with Kubernetes and cloud platforms (AWS, GCP, Azure) Knowledge of clean code principles, SOLID, typing (mypy, Pydantic) Experience with scalability, production monitoring, and incident management Experience building GenAI or LLM-powered products Nice-to-Have Skills: Experience with public-sector or government digital transformation projects Familiarity with LangChain, LlamaIndex, or similar tooling Experience with open-source LLMs (LLaMA, Mistral, Mixtral) Experience in high-growth startup environments Knowledge of cost optimization for AI inference and infrastructure Basic German language skills for team onboarding and future customer projects