Backed by Index, Sequoia and Lux.
About the role
As an AI Developer Experience Engineer at Crosby, you'll play a critical role in building the internal systems that enable our team to develop, evaluate, and ship AI features quickly and reliably. You’ll focus on improving the developer experience around LLMs, data, and experimentation — creating tools and infrastructure that accelerate iteration while maintaining quality.
What they're looking for
- 3+ years of software engineering experience, ideally working on developer tools, infrastructure, or platform teams
- Strong proficiency in Python and experience building backend systems and internal tooling
- Hands-on experience working with LLMs, APIs (e.g., OpenAI, Anthropic), and modern AI workflows
- Experience building systems for experimentation, evaluation, or data pipelines
- Strong systems thinking with the ability to design tools that scale across teams
- Highly pragmatic with a focus on improving developer velocity and real-world outcomes
More about this role
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.
As an AI Developer Experience Engineer at Crosby, you'll play a critical role in building the internal systems that enable our team to develop, evaluate, and ship AI features quickly and reliably. You’ll focus on improving the...
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