Senior Python Engineer

Type of contract: Employment contract
Salary range: 14580–22350 PLN gross per month

What will you do?

As a Senior Software Engineer, you will delivering end-to-end solutions from business requirement through development to production support. You will operate in an agile team environment, contributing to iterative delivery, ensuring technical quality, and maintaining system stability while balancing ongoing improvements and new development initiatives.
 

Your tasks

• Work within a team of 4–6 engineers with a dedicated product owner.


• Take business requirements, divide them into stories, and deliver them iteratively to production.


• Participate in analysis, development, testing, and production support as part of the same role.


• Ensure product stability by providing ongoing production support.


• Identify areas of technical debt and help balance it with new functionality.


• Design solutions aligned with technology guidelines and constraints.


• Collaborate with team members through pairing and knowledge sharing.

Your skills

• Strong experience in Python.


• Solid backend engineering fundamentals: microservices, API design, service integration, clean code and maintainable architecture.


• Experience with Flask / FastAPI / Django.


• Practical cloud/devops basics: containers (Docker) and CI/CD exposure; comfort working in cloud environments (Azure/GCP/AWS).


• LLM awareness: working knowledge of LLM application patterns (e.g., prompt fundamentals, RAG basics, tool/function calling concepts) or strong motivation to learn and apply them in real products.


• SQL and practical experience with relational databases.


• Confidence in delivering production-quality code: testing mindset (unit/integration tests), debugging and operational support.


• Clear communicator in spoken and written English, comfortable working with local and distributed teams.


• Full‑stack mindset: willingness to collaborate across the stack and learn frontend where needed

Nice to have

• Hands-on experience building LLM applications (agents, tool/function calling, RAG pipelines).


• Experience with LangChain / LangGraph or similar orchestration frameworks.


• Experience with vector databases and retrieval/search patterns.


• LLM evaluation/observability tools (e.g., LangSmith/LangFuse or similar).


• Cloud LLM platform experience (e.g., Azure OpenAI or equivalent).


• Strong data/ETL familiarity (pandas/numpy) and pragmatic data handling.


• Finance/markets domain experience (FX/Rates).


• Experience with Kubernetes and mature CI/CD practices.


• Familiarity with internal GenAI learning paths / programmes (prompt engineering, RAG, agents, LLMOps).

We offer

• Hybrid work from our client office in Kraków (6 days a month). We are open to candidates from another locations who are willing to travel to Kraków 6 days a month.


• Working in a highly experienced and dedicated team.


• Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.).


• Online training and certifications.


• Access to e-learning platform.


• Mindgram wellbeing platform.


• Work From Anywhere (up to 140 days/year abroad).


• Social events.