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AI Evaluation Engineer

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Gazelle Global
Full Time position
Listed on 2026-07-18
Job specializations:
  • Software Development
    AI QA / Validation Engineer, AI Reliability/ Performance Engineer, AI Engineer (Applied/Software)
Salary/Wage Range or Industry Benchmark: 122760 - 156240 GBP Yearly GBP 122760.00 156240.00 YEAR
Job Description & How to Apply Below
Location: Greater London

Location:

London (Hybrid – 1 day onsite)

Contract:

6–12 Months

We're looking for an AI Evaluation Engineer to help deliver and optimise cutting‑edge Generative AI solutions within a large enterprise environment.

Key Responsibilities
  • Define and implement evaluation strategies for LLMs, RAG pipelines and AI agents
  • Build automated evaluation pipelines and benchmarking frameworks
  • Establish evaluation metrics and create test datasets
  • Evaluate prompt quality, model performance and response accuracy
  • Validate RAG knowledge grounding and conduct safety, risk and compliance testing
  • Support human‑in‑the‑loop evaluation and continuous AI optimisation
Required Skills
  • Strong experience with LLMs, RAG architectures and prompt engineering
  • Python for data analysis and evaluation pipelines
  • Experience with AI evaluation tools such as Deep Eval, Prompt Tools or similar
  • Knowledge of NLP quality assessment, benchmarking and experimentation frameworks
  • Understanding of Responsible AI principles
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