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Cosine
Fully Agentic SWE
Last verified August 17, 2026 · Updated daily
Open roles at Cosine
Nothing live right now. We re-check Cosine daily and this page updates the moment they post.
Want their roles the day they go up, before the job boards index them?
Get started →Know when Cosine is hiring before anyone else
A role stays uncontested for about four days. Here's the window — and where we put you in it.
From $9/month, cancel any time.
Watching Cosine
0 applicantsRole spotted & verified
1You get the alert
1You've applied
~8Hits the job boards
250+Working at Cosine
Cosine: Fully Agentic SWE. Founded , currently <50 employees. What this means for you: broad remit, direct access to founders, and equity that still means something if the company works out.
Most Cosine jobs are based in London, England, United Kingdom.
How to actually get hired at Cosine
Why applying the normal way doesn't work
At this size (<50 people), Cosine has no recruiting function. Founders handle hiring alongside everything else. Reach them directly or get lost in the inbox.
Who to contact at Cosine
We haven't verified a contact route at Cosine yet. At <50 people in B2B, the decision-maker is almost always a founder or department head, but that's a model, not something we've confirmed. We're working on it, and members get verified contacts first.
What Cosine screens for
relevant experience and ability to operate autonomously
Don't send a generic CV to Cosine. Mirror the job posting's language to get past automated screening.
Mistakes that kill Cosine applications
At <50 people, a copy-paste CV is immediately obvious. It's an instant no.
Nobody cares what you want. Start with is growing and how you'd help.
Don't apply and wait. The median B2B application gets no response ever. One follow-up at day five roughly doubles reply rates.
Applying to Cosine? Get the contact, not the form.
The Cosine interview process
3 stages · 7 days typical · take-home: no · modelled from similar companies
We don't yet have verified candidate reports for Cosine. What follows is the typical process for a <50-person B2B company — treat it as a model, not confirmed detail.
Interview stages
Intro Call
Video call · 30 min
Culture fit and role expectations
Founder or hiring manager
Technical Deep Dive
Video call or in-person · 60 min
Past projects and problem-solving approach
Technical founder or lead
Final Round
In-person or video · 45 min
Team fit and offer discussion
Founding team
Cosine interview timeline
At days, Cosine's process is faster than typical for B2B (10 days at this size).
Interviewed at Cosine?
Tell us how it went — stages, questions, timeline. Takes 90 seconds and it's how this page stays accurate for the next person.
Submit your Cosine interview experience →Cosine jobs, frequently asked questions
Is Cosine hiring right now?
We aren't tracking any live Cosine vacancies today. We re-check daily and this page updates as soon as a role appears.
How do I apply for a job at Cosine?
Apply directly through the links above, or read our guide on how to actually get hired at Cosine.
Does Cosine respond to cold emails?
We're still collecting cold email data for Cosine.
Who is the hiring manager at Cosine?
At this size, hiring is usually run by a founder or department head.
What ATS does Cosine use?
Cosine uses Ashby.
How competitive is it to get hired at Cosine?
<50-person B2B companies see ~50-100 applicants per role in two weeks. The 72-hour window is your advantage.
How many rounds is the Cosine interview?
3 stages: Intro Call, Technical Deep Dive, Final Round.
Is the Cosine interview hard?
It concentrates on relevant experience and culture fit rather than abstract puzzles. The stage candidates find hardest is Final Round.
Does Cosine give a take-home task?
No, Cosine does not include a take-home stage.
How long does Cosine take to get back to you?
Around 7 days across the full process.
What should I prepare for the Cosine interview?
Study relevant experience and culture fit. At this size (<50), they care about self-sufficiency over textbook knowledge.
Where is Cosine based?
Cosine is headquartered in London, England, United Kingdom.
Get Cosine roles before they're posted
A role stays uncontested for about four days. Here's the window — and where we put you in it.
From $9/month, cancel any time.
Watching Cosine
0 applicantsRole spotted & verified
1You get the alert
1You've applied
~8Hits the job boards
250+