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AI Evaluation Engineer

Posted 3 days ago by TXP

Overview

We're looking for an experienced AI Evaluation Engineer to join a specialist Public Sector Technology team.

This hands-on role focuses on building evaluation frameworks, tooling and harnesses for AI systems, particularly LLM and agentic AI solutions.

The role requires ownership, experimentation and rapid delivery.

Key Responsibilities

  • Design evaluation frameworks and tooling
  • Develop evaluation harnesses
  • Evaluate model and agentic AI systems
  • Define metrics and methodologies
  • Build repeatable evaluation processes
  • Investigate AI failures
  • Work directly with government teams
  • Prototype and test solutions
  • Present findings and recommendations
  • Contribute to strategic direction.

What We Are Looking For

  • Strong software engineering experience
  • Experience building and evaluating AI systems
  • Understanding of LLMs and agentic AI
  • Experience with AI evaluation frameworks
  • Ability to code independently
  • Strong problem-solving and communication skills
  • Comfortable working autonomously.

Technical Experience

  • AI/LLM Evaluation
  • RAG Evaluation
  • Ragas
  • Agentic AI Evaluation
  • Evaluation Harnesses
  • LLM Testing and Benchmarking
  • Prompt Engineering
  • Python Development
  • Model and Agent Integration.

Ideal Background

  • AI Evaluation Engineer
  • Applied AI Engineer
  • AI Engineer
  • LLM Engineer
  • Harness Engineer
  • Prompt Engineer or Software Engineer specialising in AI.

Team

Small Public Sector Technology team of approximately 2 to 6 people within a wider organisation.

What Will Make Someone Stand Out

Experience building evaluation tooling, evaluating LLMs, using Ragas, identifying AI failure modes, combining engineering with strategic thinking, and thriving in fast-moving environments.

Summary

Hands-on AI Evaluation Engineer role supporting government AI initiatives through evaluation, testing, benchmarking and framework development.

Rate:
£750/day
Location:
London
IR35 Status:
Inside
Remote Status:
Hybrid
Industry:
AI & Machine Learning
Seniority Level:
Mid-Level

Take-Home Pay

£11,200 per month

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