We use OCaml, a statically-typed functional programming language, as our primary development language, and have the largest team of OCaml engineers in any industrial setting. About You We are looking ...
We use OCaml, a statically-typed functional programming language, as our primary development language, and have the largest team of OCaml engineers in any industrial setting. About You We are looking ...
Software Engineer
New York, NY · On-site
We are big believers in functional programming and use OCaml, a statically typed functional programming language, as our primary tool. More recently, Python has become a vital part of Jane Street ...
Software Engineer
New York, NY · On-site
We are big believers in functional programming and use OCaml, a statically typed functional programming language, as our primary tool. More recently, Python has become a vital part of Jane Street ...
OxCaml is Jane Street's variant of the OCaml language, equipped with powerful features for high-performance and parallel programming, with data race freedom guarantees. This role involves the full ...
OxCaml is Jane Street's variant of the OCaml language, equipped with powerful features for high-performance and parallel programming, with data race freedom guarantees. This role involves the full ...
ASIC Engineer
New York, NY · On-site
$181K/yr
We don't expect you to know OCaml (we'll teach you here), but we are looking for hardware engineers who are excited about the advantages that better tools can bring, and are willing to try new things ...
ASIC Engineer
New York, NY · On-site
$181K/yr
We don't expect you to know OCaml (we'll teach you here), but we are looking for hardware engineers who are excited about the advantages that better tools can bring, and are willing to try new things ...
Low-Latency Engineer
New York, NY · On-site
We build systems primarily in OCaml with only small amounts of C and C++, but you don't need any experience with OCaml in particular (we can teach it to you) or knowledge of the financial markets.
Low-Latency Engineer
New York, NY · On-site
We build systems primarily in OCaml with only small amounts of C and C++, but you don't need any experience with OCaml in particular (we can teach it to you) or knowledge of the financial markets.
ASIC Engineer
New York, NY · On-site
$181K/yr
We don't expect you to know OCaml (we'll teach you here), but we are looking for hardware engineers who are excited about the advantages that better tools can bring, and are willing to try new things ...
ASIC Engineer
New York, NY · On-site
$181K/yr
We don't expect you to know OCaml (we'll teach you here), but we are looking for hardware engineers who are excited about the advantages that better tools can bring, and are willing to try new things ...
Compiler Engineer
New York, NY · On-site
OxCaml is Jane Street's variant of the OCaml language, equipped with powerful features for high-performance and parallel programming, with data race freedom guarantees. This role involves the full ...
Compiler Engineer
New York, NY · On-site
OxCaml is Jane Street's variant of the OCaml language, equipped with powerful features for high-performance and parallel programming, with data race freedom guarantees. This role involves the full ...
Software Engineer
San Francisco, CA · On-site
We don't expect you to know OCaml on day one, but we do expect you to be the kind of person who'd be excited to pick it up • You have strong opinions about code, held loosely. You should want to ...
Software Engineer
San Francisco, CA · On-site
We don't expect you to know OCaml on day one, but we do expect you to be the kind of person who'd be excited to pick it up • You have strong opinions about code, held loosely. You should want to ...
Software Engineer / Writer
New York, NY · On-site
We have a ton of programs that new and experienced hires go through, ranging from an OCaml Bootcamp to Dev Teach-ins that expose students to interesting technical problems from around the company.
Software Engineer / Writer
New York, NY · On-site
We have a ton of programs that new and experienced hires go through, ranging from an OCaml Bootcamp to Dev Teach-ins that expose students to interesting technical problems from around the company.
Programming Language Engineer
New York, NY · On-site
Some of this work involves working on open-source language implementations, like those of OCaml and Python, and for those areas, a meaningful portion of our work is open-source as well. Some of it ...
Programming Language Engineer
New York, NY · On-site
Some of this work involves working on open-source language implementations, like those of OCaml and Python, and for those areas, a meaningful portion of our work is open-source as well. Some of it ...
Meet us at ICFP 2026!
Indianapolis, IN · On-site
We're looking forward to #ICFP2026 in Indianapolis! OCaml is our primary development language at Jane Street, and we're actively building new language features and formal verification tools. See our ...
Meet us at ICFP 2026!
Indianapolis, IN · On-site
We're looking forward to #ICFP2026 in Indianapolis! OCaml is our primary development language at Jane Street, and we're actively building new language features and formal verification tools. See our ...
Meet us at ICFP 2026!
Indianapolis, IN · On-site
We're looking forward to #ICFP2026 in Indianapolis. OCaml is our primary development language at Jane Street, and we're actively building new language features and formal verification tools. See our ...
Meet us at ICFP 2026!
Indianapolis, IN · On-site
We're looking forward to #ICFP2026 in Indianapolis. OCaml is our primary development language at Jane Street, and we're actively building new language features and formal verification tools. See our ...
Programming Language Engineer
New York, NY · On-site
Some of this work involves working on open-source language implementations, like those of OCaml and Python, and for those areas, a meaningful portion of our work is open-source as well. Some of it ...
Programming Language Engineer
New York, NY · On-site
Some of this work involves working on open-source language implementations, like those of OCaml and Python, and for those areas, a meaningful portion of our work is open-source as well. Some of it ...
Production Engineer
New York, NY · On-site
As a firm we are big believers in functional programming, and use OCaml as our primary development language. Production Engineers play an essential role interacting with a wide variety of departments ...
Production Engineer
New York, NY · On-site
As a firm we are big believers in functional programming, and use OCaml as our primary development language. Production Engineers play an essential role interacting with a wide variety of departments ...
Software Engineer / Writer
New York, NY · On-site
We have a ton of programs that new and experienced hires go through, ranging from an OCaml Bootcamp to Dev Teach-ins that expose students to interesting technical problems from around the company.
Software Engineer / Writer
New York, NY · On-site
We have a ton of programs that new and experienced hires go through, ranging from an OCaml Bootcamp to Dev Teach-ins that expose students to interesting technical problems from around the company.
Software Engineer / Writer
New York, NY · On-site
We have a ton of programs that new and experienced hires go through, ranging from an OCaml Bootcamp to Dev Teach-ins that expose students to interesting technical problems from around the company.
Software Engineer / Writer
New York, NY · On-site
We have a ton of programs that new and experienced hires go through, ranging from an OCaml Bootcamp to Dev Teach-ins that expose students to interesting technical problems from around the company.
ASIC Physical Design Engineer
New York, NY · On-site
$148K - $153K/yr
We don't expect you to know OCaml (we'll teach you here), but we are looking for hardware engineers who are excited about the advantages that better tools can bring, and are willing to try new things ...
ASIC Physical Design Engineer
New York, NY · On-site
$148K - $153K/yr
We don't expect you to know OCaml (we'll teach you here), but we are looking for hardware engineers who are excited about the advantages that better tools can bring, and are willing to try new things ...
ASIC Physical Design Engineer
New York, NY · On-site
$148K - $153K/yr
We don't expect you to know OCaml (we'll teach you here), but we are looking for hardware engineers who are excited about the advantages that better tools can bring, and are willing to try new things ...
ASIC Physical Design Engineer
New York, NY · On-site
$148K - $153K/yr
We don't expect you to know OCaml (we'll teach you here), but we are looking for hardware engineers who are excited about the advantages that better tools can bring, and are willing to try new things ...
As a firm we are big believers in functional programming, and use OCaml as our primary development language. Production Engineers play an essential role interacting with a wide variety of departments ...
As a firm we are big believers in functional programming, and use OCaml as our primary development language. Production Engineers play an essential role interacting with a wide variety of departments ...
Software Engineer
New York, NY · On-site
As a Software Engineering intern, you'll learn how we use OCaml (our primary development language) in our day to day work, and gain exposure to the libraries and tools that are foundational to our ...
Software Engineer
New York, NY · On-site
As a Software Engineering intern, you'll learn how we use OCaml (our primary development language) in our day to day work, and gain exposure to the libraries and tools that are foundational to our ...
Ocaml information
See salary details
$23.36 is the 25th percentile. Wages below this are outliers.
$22.60 - $23.93
44% of jobs
The median wage is $24.82 / hr.
$23.93 - $25.26
10% of jobs
$25.26 - $26.60
0% of jobs
$26.60 - $27.93
3% of jobs
$27.93 - $29.26
5% of jobs
$29.26 - $30.59
7% of jobs
$30.59 - $31.93
5% of jobs
$32.02 is the 75th percentile. Wages above this are outliers.
$31.93 - $33.26
7% of jobs
$33.26 - $34.59
5% of jobs
$34.59 - $35.93
7% of jobs
$35.93 - $37.26
5% of jobs
$22
$28
$37
How much do ocaml jobs pay per hour?
As of Aug 10, 2026, the average hourly pay for ocaml in the United States is $28.13, according to ZipRecruiter salary data. Most workers in this role earn between $23.32 and $32.69 per hour, depending on experience, location, and employer.
What is an OCaml?
An OCaml job typically involves software development using the OCaml programming language, which is known for its functional and statically typed features. Professionals in this role often work on building reliable and high-performance applications, including compilers, financial systems, and formal verification tools. OCaml developers may be responsible for writing and maintaining code, optimizing performance, and integrating with other technologies. These roles are commonly found in industries such as finance, academia, and systems programming.
What can I do with OCaml?
OCaml is a functional programming language used in roles such as software development, data analysis, and formal verification. Jobs involving OCaml often require knowledge of type systems, algorithms, and tools like OPAM for package management. It is valued in industries like finance, research, and systems programming for its performance and reliability.
What are the key skills and qualifications needed to thrive in the OCaml position, and why are they important?
To thrive as an OCaml Developer, you need strong proficiency in functional programming concepts, in-depth knowledge of the OCaml language, and a background in software engineering or computer science. Familiarity with version control systems like Git, CI/CD pipelines, and OCaml-specific build tools such as Dune is typically required. Excellent problem-solving abilities, attention to detail, and the capacity to communicate complex ideas clearly are valuable soft skills. These competencies are crucial for producing reliable, high-performance code and collaborating effectively within engineering teams using OCaml.
What types of projects do OCaml developers typically work on, and what does a day-to-day workflow look like?
OCaml Developers are often involved in projects that require high reliability and mathematical precision, such as financial software, compilers, static analysis tools, or research applications. On a typical day, you might write and test functional code, participate in code reviews, collaborate with teammates during agile sprints, and troubleshoot existing software modules. Interaction with cross-functional teams is common, as you may need to align closely with product managers or QA engineers to deliver robust solutions. The work environment is often collaborative and intellectually stimulating, providing opportunities to continually enhance programming and problem-solving skills.
More about Ocaml jobs
What cities are hiring for Ocaml jobs? Cities with the most Ocaml job openings:
What are the most commonly searched types of Ocaml jobs? The most popular types of Ocaml jobs are:
What states have the most Ocaml jobs? States with the most job openings for Ocaml jobs include:
What job categories do people searching Ocaml jobs look for? The top searched job categories for Ocaml jobs are:
Job description
About the Position
Our trading is based on our own proprietary models and on busy days we engage in over a million trades. Traders work in teams to seek out and trade on pricing inefficiencies, develop models, manage risk, investigate new products, and push into new business areas. Experienced traders teach and oversee the less-experienced. New traders serve as assistants while they learn the ropes, getting increasing responsibility as they demonstrate their ability to handle it.
Technology is at the core of how we approach trading, and we consider ourselves as much a technology company as a trading firm. We use OCaml, a statically-typed functional programming language, as our primary development language, and have the largest team of OCaml engineers in any industrial setting.
About YouWe are looking for people who have a strong quantitative mind and enjoy working collaboratively to solve challenging problems in a practical setting. Prior knowledge of finance or economics is not expected or required. Experience with particular programming languages is also not required, although generally being comfortable programming in your language of choice is a plus.Â
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
About Jane Street
Sourced by ZipRecruiter
Industry
Finance and insurance
Company size
1,001 - 5,000 Employees
Headquarters location
New York, NY, US
Year founded
2000