Principal Coding Annotator / LLM Evaluation Engineer

Full-time Engineering

About the Role

We are building and evaluating state‑of‑the‑art large language models (LLMs) and are looking for experienced software engineers to join our evaluation and annotation team. This role sits at the intersection of real‑world software engineering, model evaluation, and applied AI, and is critical to improving model reliability, reasoning, and code quality.

This is a contracting engagement – initially 6 months – with potential for long‑term engagement.

Location: Paris or London‑based preferred; alternatively Europe remote for strong candidates.

What You’ll Do

• Create high‑quality coding prompts and reference answers (benchmark‑style, e.g. SWE‑Bench‑like problems).
• Evaluate LLM outputs for code generation, refactoring, debugging, and implementation tasks.
• Identify and document model failures, edge cases, and reasoning gaps.
• Perform head‑to‑head evaluations between private LLMs (Mistral‑based) a...