Senior Java Developer (AI & LLM) (K/M)

Quick Facts

• Role: Senior Java Developer (AI & LLM)
• Project: Integration of applications with LLM models and the AIC ecosystem
• Duration: 12+ months (possible extension)
• Collaboration: Remote with occasional office visits (1–2 days/month: Warsaw/Wrocław or Poznań)
• Stack: Java, Spring Boot, AI, LLM, Angular, TypeScript, Python
• Engagement model: Outsourcing (contract)
• Recruitment steps: HR phone screen (~20 min), online tech talk with client (~1 hour)

Description

Integrate applications with LLM models and the AIC ecosystem in a long-term project using Java/Spring Boot and AI agent technologies.

Responsibilities

• Implement LLM-based production solutions
• Integrate and orchestrate AI agents and workflows
• Work with embeddings and vector database integrations
• Ensure AI observability, monitoring, and evaluation of LLM-based systems
• Collaborate with stakeholders and conduct technical workshops

Requirements

• Minimum 5 years of commercial experience building applications in Java and Spring Boot
• At least 1 year of experience implementing LLM-based solutions in production
• Practical knowledge of agent architectures (ReAct, MCP) and AI agent orchestration frameworks
• Experience with Spring AI and LangChain4j, including LLM API integration, embeddings, and vector databases
• Knowledge of AI observability, monitoring, and evaluation for LLM-based systems
• Experience working according to Specification-Driven Development
• Ability to conduct technical workshops and collaborate effectively with stakeholders
• Higher education in STEM

Benefits

• Remote work with occasional client office visits (1–2 days/month)
• Project duration over 12 months with possibility of extension
• Rate: 130–160 PLN net/hour + VAT