Jane StreetFormal Methods Engineer
Jane Street is hiring a Formal Methods Engineer in New York, United States. Level rates it ; you can apply on Jane Street.
Level's read on this job
- Works on AI ●●●○ is how Level rates this role: the daily work is on AI products, without building the model.
- The posting mentions Ocaml, Interactive Proof Assistants and Automated Theorem Provers among its tools and skills.
- Level classes it as a senior role.
- Jane Street has 216 other open roles on Level.
AI in this role
Build formal methods tools and proof systems to provide feedback and validate code generated by programming agents.
About the Position
We're 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.
We're looking to build a new team with engineers who have:
- Deep experience with formal methods. There's no specific checklist. We're 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. We're 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 we're 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 there's 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 we're 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 aren't 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.
We're in the early stages of building this team, with an enormous amount of work ahead of us, and we'd love you to be a part of it.
How we rate this
Formal Methods Engineer at Jane Street rates 65 out of 100 for how much of the daily work is AI. That makes it Works on AI (AI Level 3 of 4). The level is about AI in the job, not seniority.
Works on AI. The daily work is on AI products, without building the model.
- ●●●● Builds AI80 to 100
- ●●●○ Works on AI60 to 79
- ●●○○ Uses AI40 to 59
- ●○○○ Little AI0 to 39
Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.
Prepare for this job
Built from this posting and from similar jobs on Level.
Skills and AI tools this role asks for
Questions you could be asked
- Tell me about a project where formal methods was part of your work. What did you do?
- Tell me about a project where static analysis was part of your work. What did you do?
- Tell me about a project where program logics was part of your work. What did you do?
- Tell me about a project where software engineering was part of your work. What did you do?
- Walk me through how you've used Ocaml in your day-to-day work.
Adapt your resume
- List these exact terms on your resume: Formal Methods, Static Analysis, Program Logics, Software Engineering, and Ocaml. An applicant tracking system matches the wording, not the idea.
- Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
- Show where AI is part of your daily process, not a one-off project. This role expects it to be a running habit.
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