AI Full Stack Engineer

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. com.

Randstad Technologies is acting as an Employment Business in relation to this vacancy.