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

Why apply for an Antal job offer?

When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process.

About Antal

Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research.

Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams