Last verified 16 Oct · updated daily

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b12 Labs

Chemical Copilot for Pharma and Biotech

No open roles today
Size
2
Backers
—
HQ
San Francisco
Industry
Healthcare
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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?

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Tracking b12 Labs

Last checked October 16, 2026

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.

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From $5.99/week, cancel any time.

  1. LiveWatching b12 Labs0 applicants
  2. +2hRole spotted & verified1 applicant
  3. +4hYou get the alert1 applicant
  4. Day 3You've applied~8 applicants
  5. Day 7+Hits the job boards250+ applicants

Working at b12 Labs

b12 Labs is Chemical Copilot for Pharma and Biotech, and now <50 people. For a Healthcare, Drug Discovery and Delivery company this size, the reality is broad remit, direct access to founders, and equity that still means something if the company works out.

Most b12 Labs jobs are based in San Francisco, CA, USA.

How to actually get hired at b12 Labs

Why applying the normal way doesn't work

At this size (<50 people), b12 Labs has no recruiting function. Founders handle hiring alongside everything else. Reach them directly or get lost in the inbox.

Who to contact at b12 Labs

We're still mapping b12 Labs's hiring process. At this size (<50 people, Healthcare, Drug Discovery and Delivery), a founder or department head typically decides, but we haven't confirmed it yet.

What b12 Labs screens for

relevant experience and ability to operate autonomously

Tailor your CV to the specific b12 Labs role rather than sending a general one. Applications that mirror the language of the job description clear automated filters at a materially higher rate.

Mistakes that kill b12 Labs applications

  • A recycled CV gets rejected fast at b12 Labs (<50 people). They notice.

  • Lead with their problem, not your ambition. b12 Labs is focused on is growing — show you understand that.

  • Don't apply and wait. The median Healthcare, Drug Discovery and Delivery application gets no response ever. One follow-up at day five roughly doubles reply rates.

Tracking b12 Labs

Applying to b12 Labs? Get the contact, not the form.

Notify me when b12 Labs hires

The b12 Labs interview process

3 stages7 days typicalTake-home: noModelled 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, so treat it as a model, not confirmed detail.

Interview stages

  1. 1

    Intro Call

    Video call · 30 min

    What it testsCulture fit and role expectations
    Usually run byFounder or hiring manager
  2. 2

    Technical Deep Dive

    Video call or in-person · 60 min

    What it testsPast projects and problem-solving approach
    Usually run byTechnical founder or lead
  3. 3

    Final Round

    In-person or video · 45 min

    What it testsTeam fit and offer discussion
    Usually run byFounding team

b12 Labs interview timeline

b12 Labs runs about 7 days from first contact to offer. The median for Healthcare, Drug Discovery and Delivery companies at <50 people is 10 days, so b12 Labs is faster than most.

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.

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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?

Click through to apply, or see our detailed guide on landing a job at b12 Labs.

Does b12 Labs respond to cold emails?

We haven't verified response rates at b12 Labs yet.

Who is the hiring manager at b12 Labs?

At this size, hiring is usually run by a founder or department head.

What ATS does b12 Labs use?

b12 Labs uses Greenhouse.

How competitive is it to get hired at b12 Labs?

Typical applicant count for Healthcare, Drug Discovery and Delivery roles (<50 people): 50-100 in two weeks. Apply fast.

How many rounds is the b12 Labs interview?

3 stages: Intro Call, Technical Deep Dive, Final Round.

Is the b12 Labs interview hard?

The interview emphasizes relevant experience and culture fit over abstract problems. Hardest stage: Final 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?

Prepare for relevant experience and culture fit. A <50-person startup wants proof you can ship, not that you can whiteboard.

Where is b12 Labs based?

b12 Labs is headquartered in San Francisco, CA, USA.

Tracking b12 Labs

Last checked October 16, 2026

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.

Notify me when b12 Labs hires

From $5.99/week, cancel any time.

  1. LiveWatching b12 Labs0 applicants
  2. +2hRole spotted & verified1 applicant
  3. +4hYou get the alert1 applicant
  4. Day 3You've applied~8 applicants
  5. Day 7+Hits the job boards250+ applicants

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