Senior Software Engineer, AI Training - UK

Contract | Remote, worldwide | $100-$200/hour depending on experience and location | 10-20 hrs/week

Check out this Loom video for more details: https://www.loom.com/share/b0d1b0bf24c44ae8b95dca84b9db60e5

We're looking for highly experienced software engineer (SR+) to help evaluate the quality of interactions with modern coding agents such as OpenAI Codex and Claude Code.

This is not a traditional engineering role. You won't be writing production code. You'll be evaluating something harder: whether the model thinks like a great engineer.

What this role actually is

You will assess how AI coding agents behave in real-world scenarios, focusing on:

Whether the response makes sense

Whether the preamble and reasoning are useful

Whether the output reflects strong engineering judgment

Whether the interaction feels right to an experienced developer

This role is about engineering taste. Syntax correctness is the easy part.

What you'll be doing

Evaluate AI-generated coding interactions end to end

Judge whether outputs are useful, correct at a high level, and aligned with how a strong engineer would think

Assess the quality of explanations and reasoning, not just the code

Distinguish between levels of response quality (what makes something a 2 vs a 4)

Give clear, opinionated feedback in writing on what worked, what didn't, and what felt off or misleading

Help define what great looks like when working with tools like Cursor, Codex and Claude Code

What we mean by "taste"

We're looking for engineers who can answer questions like:

Does this feel like something a strong engineer would actually say?

Is this explanation helpful, or just technically correct?

Is the model guiding the user well, or just dumping output?

Would this interaction build or erode trust?

You should be comfortable making subjective but rigorous judgments, and explaining them clearly.

Who you are

Senior, Staff or Principal-level engineer (or equivalent experience)

Strong background in TypeScript/JavaScript or Python

Hands-on experience with at least one of OpenAI Codex, Claude Code or Cursor

Deep familiarity with modern AI-assisted dev workflows

Able to evaluate code without executing it or reviewing every line

Strong written and spoken English (B2 or above). You'll be writing detailed feedback and recording short video explanations, so this is a hard requirement

Comfortable giving direct, opinionated feedback

High bar for what good engineering looks like

Nice to have

Prior exposure to prompt design or evaluation workflows

Experience mentoring senior engineers or defining engineering standards

Engagement details

Rate: $100-$200/hour depending on experience and location

Hours: 10-20 hours/week, flexible

Duration: ongoing. Projects run from about two weeks to a few months each, and we offer new ones to evaluators who do well

Start: as soon as you clear the take-home and a project has an open seat

Process: one take-home evaluation exercise with a recorded Loom walkthrough. No interview