Senior Machine Learning Engineer - Agentic AI Platform

Senior Machine Learning Engineer - Agentic AI Platform
Location: Central Cambridge (Hybrid) |Permanent | In partnership with Robert Half

The Opportunity
Join a global SaaS company building a cutting-edge multi-agent AI platform for enterprise data. This hands-on role focuses on scaling, hardening, and refining a graph-based agent engine as it moves toward global production.

What You'll Do

• Agent Orchestration: Scale multi-step reasoning workflows and optimize agent collaboration.

• Tool Integration: Benchmark and extend toolchains within the agent framework.

• Inference & Performance: Optimize LLM integration, latency, and cost efficiency.

• State & Reliability: Strengthen Redis-backed persistence and ensure system consistency.

• Evaluation & Observability: Build regression frameworks and implement monitoring and tracing.

What We're Looking For

• Strong Python engineering experience with production-grade systems

• Hands-on with LLM-powered applications and agent orchestration frameworks (e.g., LangGraph)

• Experience with stateful systems, caching, and reliability engineering

• Proficiency in FastAPI, Docker, and Redis

• Comfortable in a small, senior, high-impact team

Why Join?

• Work on a strategic next-gen AI platform

• Direct influence on architecture decisions

• Hybrid working in Central Cambridge

• Excellent benefits and discretionary bonus

Note: UK-based applicants only; full work rights required. No contractor/B2B/B2C roles available.

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