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Crosby

Member of Technical Staff, Platform

New York City
Salary
$220K - $350K
Level
Staff
Work type
On-site · New York

Not stated in the posting: visa.

Open. First seen 2 October 2026.

Apply on the company's site →

About the role

Crosby's standard text

About Crosby

Crosby is built on a simple conviction: a great legal system is the watermark of a great society — and the best legal work comes from combining human expertise with the right technology, not replacing one with the other.

Crosby is the first AI-native law firm, helping ambitious companies like Cursor, Ramp, and Cognition sign commercial contracts faster.

Legal work is both art and science, and we're mapping the frontier between the two — codifying what can be systematized, amplifying human judgment where it matters most. That's why the right way to bring AI into law isn't to sell software and walk away. It's to own the outcome together: higher-quality work, delivered faster. We build proprietary tools and human-in-the-loop workflows that change what's possible for corporate legal teams.

Crosby was founded by Ryan (Stanford Law, Cooley, startup GC) and John (Penn, first 15 engineers at Ramp). Help us transform one of society's most important industries.

About the role

As an Engineer, you’ll have the unique opportunity to define and build the core technology stack that powers Crosby’s platform. You’ll work across the stack, building the robust back-end systems and tooling interfaces needed to deliver on our vision.

In this role, you’ll collaborate directly with the founders, define technical priorities, and ensure the scalability of our platform. You'll have a direct impact on our product and user experience as we create tools to make contract review faster and more efficient.

What you’ll do

  • Design and implement scalable systems to process contracts at scale.
  • Build bleeding-edge agentic AI tools to help the Crosby Legal team review contracts faster.
  • Work closely with the founders and cross-functional teams to define and execute on technical priorities.
  • Establish the foundation for a robust and maintainable codebase as we grow.
  • Mentor and recruit engineers to help build out the team.

Who you are

  • Experience: 3+ years of engineering experience, ideally including Python, TypeScript.
  • Problem-focused: Strong sense of the problem behind a problem, and attention to detail in delivering high-quality products.
  • Builder mindset: Excited about the opportunity to create and scale systems from the ground up.
  • Collaborative: Effective communicator who thrives in cross-disciplinary teams.
  • Ownership: Driven to take responsibility for projects from ideation through execution.
  • Curiosity: Passionate about learning and experimenting with new technologies.
  • Strong Python, TypeScript skill set
  • Strong experience with NLP, LLMs, RL, and Information Theory.
  • Experience with modern front-end frameworks (e.g., React, Vue, or Svelte).

Benefits & Perks

  • Unlimited PTO
  • Lunch & dinner in the office every day
  • Medical insurance (multiple plan options through Anthem & Cigna)
  • HSA or FSA, depending on your plan choice
  • Dental insurance
  • Vision insurance
  • One Medical membership
  • 401(k) match
  • In-office desk setup stipend

Equal Opportunity

Crosby's standard text

Crosby is an equal opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics.

Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the New York City Fair Chance Act.

Pursuant to New York Labor Law Section 194-b, the US Pay Range for this position is listed in the job post. Final compensation will be determined based on skills, experience, and qualifications.

What this role asks for

In most of Crosby's ads

Python

Named in most of its open postings, whatever the role.

56% of this description is written for the role. The rest is Crosby's standard text, folded away below.

Compared with Crosby's other open jobs.

The team: Engineering HIRES STEADILY

This role is one of 10 open in Engineering. 2 were posted in the last 30 days and the oldest in June: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Python (7 of 10), LLM (4 of 10), Machine Learning (3 of 10), AWS (2 of 10), GCP (2 of 10), Golang (2 of 10), NLP (2 of 10)

OTHER ROLES ON THIS TEAM

From the team and dates on Crosby's own job board.

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