Tech Stack
Job Description, Responsibilities & Requirements
About the Position
Senior Software Engineer
We are seeking a Senior Software Engineer with strong backend engineering skills to join our team in Kraków, Poland, for a hybrid role.
Responsibilities
As a Senior Software Engineer, you will deliver end-to-end solutions from business requirements 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.
- 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.
Requirements
- 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 other 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.
About the Company
We are GFT Poland. WE KNOW how to tackle complex issues with an innovative approach to deliver the highest value. Our reputation has been built around one simple rule: we do not overpromise, WE DELIVER. We deliver to our employees, clients, and partners. WE GROW as you grow, so investing in you is our business strategy. Caring for each other is our priority. WE CARE who you are, what you need, how you feel. WE CARE to smile, have fun, and develop as human beings.
Why Choose GFT?
- A culture of top performance
- Deep tech IT engineering & consulting
- 1200 skilled & top-class experts
- 77% of the team are regular/senior
- Products that contribute to a sustainable world
- Competitive salary and benefits
- Ambitious projects, trainings, and tools you need to flourish
- Google Cloud Partner of the Year - for going above and beyond for customers
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Salary range: 14580–22350 PLN gross per month
Type of contract: Employment contract
Location: Kraków, PL
Working place: Hybrid