Software Engineer - Python/Agentic AI

Senior Software Engineer - Agentic AI

Location: UK (Fully Remote)

Compensation: £90k base + equity

Sector: Fintech

At DATAHEAD, we partner with high-growth teams to place engineers who love turning prototypes into rock-solid products. We’re leading a confidential search for a builder who can own agentic AI in production - end to end.

The role

Own the journey from prototype to production for agentic AI services. You’ll design orchestration, build high-throughput APIs, and keep systems observable, reliable, and cost-aware.

What you’ll do

• Ship and harden agentic workflows (planning, tool use, retries/fallbacks, evals).
• Build and scale Python/FastAPI services; drive latency, accuracy, and cost improvements.
• Run services on Kubernetes; manage rollouts, resources, and debugging.
• Improve retrieval with vector search (e.g., Pinecone/Qdrant/pgvector) and hybrid strategies.
• Maintain healthy event-driven pipelines (Kafka/RabbitMQ/Redis) with DLQs, back-pressure, and idempotency.
• Raise engineering velocity via tests, CI/CD, and clear SLOs/alerting.

What you’ll bring

• 6+ years in software engineering with deep Python.
• Production experience with FastAPI (async), observability, and CI/CD.
• Hands-on agentic AI (LangChain/LangGraph or equivalent) deployed to real users.
• Solid Kubernetes fundamentals and comfort with event-driven systems.
• Practical experience with vector databases and retrieval quality.

Nice to have

Background in complex/regulated data workflows or document-heavy systems.