LLM / Generative AI Developer

Experis is a global leader in recruitment of specialists and management staff in key IT areas. They offer competitive employment opportunities and interesting IT projects for both experienced experts and those starting their careers in IT.

• 5+ years of professional experience in software engineering or AI development
• Strong hands-on Python development skills (mandatory)
• Experience with Generative AI frameworks such as LangChain, LangGraph, and CrewAI
• Deep understanding of agentic reasoning, orchestration patterns, and tool integration
• Experience with Azure OpenAI and Azure AI Foundry
• Familiarity with vector databases such as Azure AI Search, Pinecone, Weaviate, or OpenSearch
• Solid understanding of tokenisation, context windows, rate limits, and LLM cost optimisation
• Experience with API integration, async programming, and resilient error-handling patterns
• Strong knowledge of Responsible AI risks and mitigation techniques

• Design and implement end-to-end Generative AI solutions using Python
• Build agentic workflows using frameworks such as LangGraph, tool and function calling, MCP, and multi-agent orchestration
• Develop robust RAG pipelines including ingestion, chunking, embeddings, vector search, re-ranking, and grounding validation
• Implement memory strategies including short-term, long-term, summarised, and vector-based memory
• Integrate, benchmark, and evaluate multiple LLM models including GPT-4.x series and GPT-4o
• Develop structured output and tool-calling systems with strict schema enforcement
• Build evaluation frameworks covering hallucination detection, quality scoring, latency, and cost metrics
• Implement Responsible AI guardrails including input and output filtering, validation, and fallback strategies
• Collaborate closely with DevOps and LLMOps teams on deployment, monitoring, scaling, and cost optimisation

Location: 100% remote work (Poland)