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Data Scientist - AI Safety

London💼 Full-time🗓 2026-09-01 → 2026-09-26

Core

Own safety datasets end-to-end and build evaluation workflows to assess AI model performance in production.

Role type

hands-on IC data scientist (AI safety & evaluation)

Builds

production-ready safety datasets and evaluation pipelines for AI models

Domain

AI safety, content moderation, and model evaluation

Deliverable

production ML models

Required skills

dataset collection, cleaning, sampling, labelling, quality control, evaluation, Python, SQL, critical thinking, autonomous decision-making

Preferred skills

AI safety/trust & safety experience, human-in-the-loop labelling management, ML pipeline tooling, policy operationalization

Technologies

Python, SQL

Responsibilities

Own safety datasets end-to-end (collection, cleaning, labelling, QC, versioning); Translate safety policy into labelling and evaluation criteria; Design and manage labelling processes including external contributors; Build evaluation workflows for models in production; Develop lightweight Python/SQL pipelines for data work

Seniority

Mid-level, hands-on IC

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