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Member of Technical Staff, Platform

Crosby

New York City, US$220k – $300konsite

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About this role

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 X employees at Ramp). We work together, in person, in New York City — because the best ideas still happen in the same room. Help us transform one of society's most important industries.

WELCOME TO CROSBY, THE NEXT-GENERATION LAW COMPANY!

We're a team of technologists and legal experts collaborating closely to reimagine corporate legal services from the ground up. We build proprietary technology and human in the loop workflows to radically enhance the lawyer machine relationship. Our mission is to review complex documents faster than ever and with perfect quality

Crosby was founded by Ryan (Penn, Stanford Law, ex Cooley, former GC) and John (Penn M&T, ex Ramp, ex Google).

WE BELIEVE:

- A great legal system is the watermark of a great society.

- Legal work is an art and science. We want to discover the frontier between the two and codify the scientific parts, which is a magnificent puzzle.

- Selling work, not software, is the best way to realize the productivity gains of GenAI for professional services.

- In an in-person culture at our NYC office.

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.

WHAT WE’RE LOOKING FOR:

- 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.

IDEAL QUALIFICATIONS:

- 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).

WHY WORK AT CROSBY LEGAL:

- Competitive salary and equity compensation.

- Comprehensive health, dental, and vision insurance.

- Unlimited PTO

- In-person team in NYC with a collaborative, high-energy environment.

Apply now to join Crosby and be part of transforming the legal landscape.

Note: 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. Pursuant to New York Labor Law Section 194-b, US Pay Range is $170,000 - $250,000 which represents the base salary we reasonably expect to pay for this position at the time of this posting. Final compensation will be determined based on skills, experience, and qualifications.

EQUAL OPPORTUNITY

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.

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