Junior Developer - AI Agent Engineer

Junior Developer - AI Agent Engineer - 3 month initial contract - £350 - £390 per day (via umbrella) - London - Hybrid

Our eCommerce client is looking for a Junior Developer (AI Agent Engineer) to join their team on an initial 3 month contract. You will work on the design, development and optimisation of AI and agentic applications, that enhance productivity, streamline services and enrich web development.

• Work on the development and optimisation of AI applications and agentic tools
• Use Claude Code as an AI-powered coding assistant in your daily workflow
• Maintain documentation for agent design, logic, inputs/outputs and monitoring processes
• Support ongoing monitoring of technology performance, identifying risks and opportunities for improvements

• Experience using tools such as LangGraph, CrewAI, or Autogen to manage state, memory and routing between multiple Claude agents
• Strong knowledge of Claude specific features, such as Tool Use (Function Calling), prompt caching to save costs and optimising context windows
• Proficiency in Python or TypeScript to connect Claude to external databases, vector stores (Pinecone or ChromaDB) and external enterprise API's
• Good understanding of system resilience - the ability to implement fallback mechanisms, error handling and structures outputs (JSON formatting)
• A degree in Computer Science would be advantageous

If you feel you have the experience required, then please do apply!