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b12 Labs
Chemical Copilot for Pharma and Biotech
Last verified August 17, 2026 · Updated daily
Open roles at b12 Labs
Nothing live right now. We re-check b12 Labs 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 b12 Labs 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 b12 Labs
0 applicantsRole spotted & verified
1You get the alert
1You've applied
~8Hits the job boards
250+Working at b12 Labs
Founded in , b12 Labs is Chemical Copilot for Pharma and Biotech. They're now <50 people. Working at a Healthcare, Drug Discovery and Delivery company at this stage means broad remit, direct access to founders, and equity that still means something if the company works out.
The majority of roles are in San Francisco, CA, USA.
How to actually get hired at b12 Labs
Why applying the normal way doesn't work
b12 Labs is <50 people. No recruiter, no HR. Your application goes to a founder juggling everything. Cold outreach is how you actually get seen.
Who to contact at b12 Labs
Contact route not yet verified for b12 Labs. For a <50-person Healthcare, Drug Discovery and Delivery company, expect a founder or department head to make the call — but this is a model, not confirmed data.
What b12 Labs screens for
relevant experience and ability to operate autonomously
Customize your CV for the b12 Labs role. Matching the job description language helps clear ATS filters.
Mistakes that kill b12 Labs applications
A recycled CV gets rejected fast at b12 Labs (<50 people). They notice.
Don't open with what you want. Open with what b12 Labs is dealing with right now — is growing, and what you'd do about it.
The wait-and-hope strategy fails. Follow up on day five — response rates roughly double.
Applying to b12 Labs? Get the contact, not the form.
The b12 Labs interview process
3 stages · 7 days typical · take-home: no · modelled from similar companies
We don't yet have verified candidate reports for b12 Labs. What follows is the typical process for a <50-person Healthcare, Drug Discovery and Delivery 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
b12 Labs interview timeline
Timeline: ~ days. That's faster than the Healthcare, Drug Discovery and Delivery median (10 days at <50 people).
Interviewed at b12 Labs?
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 b12 Labs interview experience →b12 Labs jobs, frequently asked questions
Is b12 Labs hiring right now?
We aren't tracking any live b12 Labs vacancies today. We re-check daily and this page updates as soon as a role appears.
How do I apply for a job at b12 Labs?
Use the apply links above, or check our guide to getting hired at b12 Labs.
Does b12 Labs respond to cold emails?
Not enough data yet on b12 Labs's cold email response rates.
Who is the hiring manager at b12 Labs?
At this size, hiring is usually run by a founder or department head.
How competitive is it to get hired at b12 Labs?
Expect 50-100 applicants in the first two weeks for Healthcare, Drug Discovery and Delivery roles at this size. Apply within 72 hours for best odds.
How many rounds is the b12 Labs interview?
3 stages: Intro Call, Technical Deep Dive, Final Round.
Is the b12 Labs interview hard?
Focus on relevant experience and culture fit, not puzzles. Final Round is reportedly the most challenging round.
Does b12 Labs give a take-home task?
No, b12 Labs does not include a take-home stage.
How long does b12 Labs take to get back to you?
Around 7 days across the full process.
What should I prepare for the b12 Labs interview?
Focus on relevant experience and culture fit. At <50 people, they're testing whether you can operate without process, not whether you memorised algorithms.
Where is b12 Labs based?
b12 Labs is headquartered in San Francisco, CA, USA.
Get b12 Labs 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 b12 Labs
0 applicantsRole spotted & verified
1You get the alert
1You've applied
~8Hits the job boards
250+