AI Engineer
commercetools4 hours ago
London, United KingdomSenior
Responsibilities
- Build agent loops and orchestration involving tool use, structured outputs, business-rule enforcement, and graceful failure.
- Develop MCP-based integrations for secure agent access to backend systems and business APIs.
- Render model outputs into live, streamed, accessible user interfaces using generative UI protocols.
- Implement retrieval, embeddings, feedback loops, and evaluation systems for measurable model improvement.
- Move AI capabilities from prototypes to measured, guard-railed production features and operate them end-to-end.
Requirements
- Ship and own full-stack applications in production across frontend, backend, deployment, and operations.
- Have 5+ years of production software experience and 2+ years building LLM systems in production with real users.
- Have hands-on experience with generative or agent-driven UI protocols such as A2UI, AG-UI, or MCP-UI.
- Have experience with prompt and context engineering, agents, tool use, structured outputs, evaluations, MCP, Python, TypeScript/Node, React, asynchronous systems, streaming, and observability.
- Have working fluency with retrieval, embeddings, and SQL.
- Fine-tuning or distillation experience, e-commerce or marketplace systems experience, and a record of zero-to-one work are preferred.
Benefits
- Comprehensive health benefits for employees and dependents, including personalized mental health support through OpenUp.
- Annual learning budget, self-paced learning platforms, language training, personalized coaching, mentorship, and leadership programs.
- Additional fully paid parental leave through Family Leave Plus.
- Equity participation program.
- Full-time hybrid role based in Berlin, Munich, London, or Valencia.
Tech Stack
Categories
About commercetools
commercetools builds a cloud-native, API-first commerce platform used by enterprises to run B2C and B2B storefronts across channels. Its SaaS products provide headless commerce, catalog, checkout, and order management that developers integrate via microservices and SDKs, sold by subscription with enterprise support. Founded in 2010 and headquartered in Munich, it serves global brands; public references include Sephora, Volkswagen Group, NBCUniversal, and Danone.