The posting
AI Backend Engineer – GenAI
Location: Kraków, hybrid, 6 days per month from the client’s office Cooperation: Antal
We are looking for an experienced AI Backend Engineer / Python Developer to join a team developing enterprise-scale Generative AI solutions.
The team focuses on enabling GenAI models and AI agents to access and utilise data from various systems, unlocking new insights and supporting business processes. The role combines backend software engineering with AI, with a particular focus on building and evaluating agentic and multi-agent solutions.
We are looking for a strong developer with hands-on AI experience who is also open to working with evaluation and testing of AI systems.
Responsibilities
- Developing backend solutions for Generative AI and AI agents
- Creating agents that source data from various systems
- Developing microservices and APIs integrated with GenAI solutions
- Building data transfer pipelines
- Working with RAG, memory stores and context engineering
- Contributing to the development and evaluation of agentic and multi-agent systems
- Ensuring the quality, reliability and scalability of developed solutions
Requirements & Tech Stack
- Strong commercial experience in Software Engineering / Backend Development
- Very good knowledge of Python, including experience with FastAPI
- Experience developing microservices and REST APIs
- Hands-on experience with Generative AI / LLM-based solutions
- Experience or understanding of AI agents, multi-agent systems, RAG and Context Engineering
- Experience with databases and data technologies such as MongoDB, PostgreSQL, Vector Stores, Hadoop, Starburst or GCP BigQuery
- Experience with cloud environments, particularly Google Cloud Platform or Azure
- Familiarity with Google ADK, Memory Stores and Evaluation Systems will be an advantage
- Good understanding of automated testing and software quality
- Openness to working with evaluation and testing of AI agents
- English allowing comfortable work in an international environment
What we offer
- B2B cooperation through Antal
- LuxMed private healthcare
- MyBenefit cafeteria
- Hybrid working model: 6 days per month from the client’s office in Kraków
- Opportunity to work on enterprise-scale Generative AI solutions
- Hands-on exposure to AI agents, multi-agent systems, RAG and AI evaluation
- A role combining backend software engineering with modern AI technologies



