Designing and implementing AI agents with reasoning pipelines (e.g. multi-step workflows, tool usage, RAG-based decision making)
Integrating AI capabilities such as LLM-powered services, semantic search, and intelligent automation
Contributing to scalable architectures for data- and event-driven systems
Improving, refactoring, and maintaining existing codebases
Designing tasks in collaboration with the Team Lead and Product Owner
Participating in code reviews, architecture discussions, and knowledge sharing
Collaborating closely with the Team Lead and Product Owner to shape technical solutions

Requirements

3+ years of professional experience
Strong technical skills in Java and backend development
Experience with Java Spring Boot and Spring AI
Proficiency in Docker
Experience integrating LLMs into applications (OpenAI API, Anthropic, local inference, etc.)
Understanding of vector databases (Milvus, Pinecone, Qdrant, Elasticsearch vector search, or similar)
Polish – C1 (required)
English – C1/B2+ (required)

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Javabackend developmentJava Spring BootSpring AIDockerLLMs integrationOpenAI APIvector databasesMilvusElasticsearch vector search

Soft Skills

collaborationcommunicationknowledge sharingcode reviewsarchitecture discussions