Job Overview
Role: AI Full Stack Engineer (AI & ML Engineer)
Location: Fenchurch Street, London
Duration: Oct 12, 2026 - Dec 15, 2026 (9 Weeks, 2 Days)
Hours: 40 hours/week
Rate: 291 PAYE / 388 Umbrella
Core Technical Stack
Programming & APIs: Python, RESTful API development, JSON Schema, Pydantic.
AI & LLMs: Gemini, OpenAI, Claude.
Frameworks & Orchestration: Google ADK, LangChain, LangGraph.
Data & Search: AWS OpenSearch (Indexing and Vector embeddings - Highly emphasized), Database Architecture (Intermediate).
Infrastructure: Public Cloud (GCP, AWS, or Azure), containerization, CI/CD pipelines.
Key Responsibilities
Agentic Systems: Build multi-agent, stateful, and asynchronous workflows.
LLM Management: Handle prompt engineering, context/memory management, hallucination controls, guardrails, and fallback logic.
Observability: Implement tracing and evaluation frameworks, specifically utilizing LLM-as-a-Judge patterns.
Backend Engineering: Develop secure Python APIs and maintain strong testing and deployment disciplines.
If interested kindly email me your updated CV to dona. thomas@ randstaddigital. com.
Randstad Technologies is acting as an Employment Business in relation to this vacancy
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