Careers · 8 open roles

Work on thehardest questions.

We are 64 people in London, Montréal and eleven time zones. Small teams, long projects, and the time to get things right.

64
People
8
Open roles
2
Offices
2.1 yrs
Median tenure
How we work

Small teams.Long problems.

01
Time to think

Projects run for months, not sprints. We protect deep work: no meetings before noon, ever.

02
Publish by default

If it is safe to share, we share it. Everyone here has their name on a paper or a release.

03
Small teams

Most teams are three to six people with one clear owner and no layers in between.

04
Remote-friendly

Two offices and eleven time zones. We write things down so nobody has to be awake at 3 a.m.

05
Real compute

Every researcher gets a guaranteed GPU budget. No queueing for weeks to test an idea.

06
Pay that respects you

Salaries are published on every role. Equity for everyone, and 26 days off plus local holidays.

How we got here

Three years,one question.

2023
Founded

Four researchers leave a large lab to work on one problem: models that check their own work.

2024
First paper

'Search before you speak' shows small models beating large ones when given time to think.

2025
Kerrfield 0.9

Private preview with 40 research groups. Median task length grows from 20 s to 6 min.

2026
Kerrfield One

Public launch with a 142-page system card and an open 8B distill.

2027
Next

Longer horizons: models that work on a problem for a day, and show every step.

Hiring

How hiringworks here.

About three weeks from first call to offer. Four conversations, one paid take-home project, no trick questions.

No. About half the research team has one. We care about what you have built and published, not your letters.

Yes, within four hours of London or Montréal time. We meet in person for a week every quarter.

Yes, in the UK and Canada, and we cover relocation for anyone moving to an office city.

Write to us anyway with something you have made. We read every message.

Start here

Ask it somethinghard.

Kerrfield
An independent research lab building models that reason before they answer.
© 2026 Kerrfield Research Ltd. · London · MontréalAll systems normal

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