Formal Methods Engineer

About the Position

Were looking for software engineers and researchers to establish a new Formal Methods team at Jane Street. With the emergence of agentic programming we think formal methods will play a major role in providing feedback for agents and helping validate agent-generated code. Our vision is to make formal methods as useful a tool for building software as type systems are for us today both by leveraging existing tools and technology and pursuing novel approaches.

Were looking to build a new team with engineers who have:

• Deep experience with formal methods. Theres no specific checklist. Were broadly interested in people with backgrounds in interactive proof assistants automated theorem provers static analysis refinement types program logics property-based testing and related areas.
• Top-notch software engineering skills. Were looking for people who can turn cutting-edge research ideas into practical tools and get these tools in use across the firm and beyond.
• Strong interpersonal skills. Software engineering at Jane Street is highly collaborative and were looking for people who can work effectively in small close-knit teams.

We are interested in exploring a wide variety of approaches. While we are eager to integrate new tools into our existing infrastructure no previous experience with OCaml or functional programming is required.

Why do it here

The whole world is thinking about what agents mean for the future of programming and theres no shortage of efforts trying to mix formal methods and agents. But think there are things about Jane Street that make this a unique opportunity.

First we have deep control of the language were using which lets us shape it into a better home for proof-oriented techniques. We can adjust the language and the proof system at the same time in ways that arent possible when you have to take the language as given.

Second we have a community of programmers who are eager to adopt new tools and have the right intellectual toolkit to do so. That community is an unparalleled source of both feedback and leverage for the work we do here.

Were in the early stages of building this team with an enormous amount of work ahead of us and wed love you to be a part of it.

If youre a recruiting agency and want to partner with us please reach out to.