Senior Python Consultant (Kraków, PL, 30-302)

GFT Technologies SE; Kraków; Hybrid; PLN 179,000 - 220,000; Full time

Job summary

GFT Technologies SE in Kraków is seeking a Senior Software Consultant to deliver end-to-end solutions from business requirements through development to production support. You will operate in an agile team with a product owner and 4–6 engineers.

You should be proficient in Python, API design, and modern backend patterns, with practical cloud and DevOps exposure (Docker, Kubernetes, CI/CD) and familiarity with LLM-powered applications.

Qualifications

• Strong experience with Python in backend services.
• Proven API design and service integration skills.
• Experience with LLM-based patterns and practical integration.
• Excellent spoken and written English communication.
• Proven ability to write tests and debugging production systems.

Responsibilities

• Deliver end-to-end solutions from requirements to production.
• Work in an agile team with a product owner and 4–6 engineers.
• Convert requirements into stories and iterate to production.
• Participate in analysis, development, testing, and production support.
• Maintain system stability and balance improvements with new features.
• Collaborate through pairing and knowledge sharing.

Skills

Python

API design

LLM patterns

English communication

Testing & debugging

Tools

Docker

Kubernetes

CI/CD

Cloud platforms (Azure/GCP/AWS)

LangChain / LLM tooling

Job description

Type of contract: B2B contract
Salary range: 130-160 PLN/H

What will you do?

As a Senior Software Consultant, 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.

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
• 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.

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).

GDPR clause

Based on Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such a data and repealing Directive 95 /46/EC (known as a “GDPR”), I hereby give consent to GFT Poland Sp. z o.o. (90-118 Łódź, ul. Kilińskiego 66) to process my personal data for the purpose of: a) ongoing recruitment process for the position I am applying; b) recruitment processes organized in the future.