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 .
Randstad Technologies is acting as an Employment Business in relation to this vacancy.
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AI Full Stack Engineer employer: Randstad Technologies Careers
At Randstad Technologies, we pride ourselves on being an excellent employer by fostering a collaborative and innovative work culture that empowers our employees to thrive. Located in Harlow, we offer competitive benefits, opportunities for professional growth, and the chance to work on impactful projects with leading clients. Join us to be part of a dynamic team where your contributions are valued and your career can flourish.
Contact Details:
Randstad Technologies Careers Recruitment Team
