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We're always hiring software engineers for all of our offices. Technology is at the core of how we approach our work, and engineers are intimately involved in every area of the business.
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’s research and trading work, acting as the go-to language for data analysis, visualization, and machine learning.
We also believe in the value of open source software, using it in our daily work and releasing over a million lines of our own code as open source.
If you'd like to get an idea of what we cover in our software engineering interview process, you can visit our interview prep page.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking to hire an ASIC Physical Design Engineer to help us design, test, and deploy advanced hardware. As part of our Ultra Low Latency team, you'll have the opportunity to collaborate with people in areas across the firm, including trading, networking, and research infrastructure.
This isn't a traditional PD role. We're a small team where everyone works across the chip design process, and we expect our PD engineers to lead with physical design expertise but think like chip designers. You should be comfortable owning a PD flow end-to-end, but also able to read and write RTL and reason about design decisions that cross the front-end/back-end boundary.
If you've spent your career exclusively in PD, this probably isn't the right fit— but if you've worked across the stack, either because you started as an RTL designer and moved into PD, or because you were on a smaller team where you had to wear multiple hats, we'd love to talk.
We're big believers in the ability of tools to improve the productivity, reliability, and day-to-day joy of hardware engineering. That's why we created Hardcaml, a hardware development toolchain embedded in OCaml. 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 result.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking to hire an experienced ASIC Engineer to help us design, test and deploy advanced hardware designs. As part of our Ultra Low Latency team, you’ll have the opportunity to collaborate with people in areas across the firm, including trading, networking and research infrastructure. We are looking for someone who can contribute to all of our projects and be happy to work on both FPGA-based and ASIC-based technologies.
We’re big believers in the ability of tools to improve the productivity, reliability and day-to-day joy of hardware engineering. That’s why we created Hardcaml, a hardware development toolchain embedded in OCaml. 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 result.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
Apply to Jane StreetShare this job
We are looking to hire an ASIC Physical Design Engineer to help us design, test and deploy advanced hardware. As part of our Ultra Low Latency team, you'll have the opportunity to collaborate with people in areas across the firm, including trading, networking and research infrastructure.
This isn't a traditional PD role. We're a small team where everyone works across the chip design process, and we expect our PD engineers to lead with physical design expertise but think like chip designers. You should be comfortable owning a PD flow end-to-end, but also able to read and write RTL and reason about design decisions that cross the front-end/back-end boundary.
If you've spent your career exclusively in PD, this probably isn't the right fit—but if you've worked across the stack, either because you started as an RTL designer and moved into PD, or because you were on a smaller team where you had to wear multiple hats, we'd love to talk.
We're big believers in the ability of tools to improve the productivity, reliability and day-to-day joy of hardware engineering. That's why we created Hardcaml, a hardware development toolchain embedded in OCaml. 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 result.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
Apply to Jane StreetShare this job
We are looking to hire an experienced ASIC Engineer to help us design, test and deploy advanced hardware designs. As part of our Ultra Low Latency team, you’ll have the opportunity to collaborate with people in areas across the firm, including trading, networking and research infrastructure. We are looking for someone who can contribute to all of our projects and be happy to work on both FPGA-based and ASIC-based technologies.
We’re big believers in the ability of tools to improve the productivity, reliability and day-to-day joy of hardware engineering. That’s why we created Hardcaml, a hardware development toolchain embedded in OCaml. 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 result.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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Jane Street is hard at work building OxCaml, a branch of OCaml with a variety of extensions to support performance engineering. But designing and implementing the language is only half the battle: we need our developers to understand its nuances and program in OxCaml as experts. That's where you come in.
We’re looking for an experienced, skilled educator to help us develop materials and deliver courses to teach engineers at Jane Street how to use OxCaml effectively. You would work broadly across our internal educational programs, from expanding our OCaml Bootcamp for new hires to use OxCaml to developing specific tutorials to level-up experienced developers that need OxCaml's most advanced features.
This is a unique opportunity to work hand-in-hand with a language's designers and implementers to develop its educational component. You would be part of the team within Jane Street building the next generation of OxCaml.
Here’s what we’re looking for:
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We’re looking for a software engineer who is passionate about front-end development, user-interface design, and typed functional programming. You would take part in the design and implementation of our next-generation of browser-based tools for operating our trading infrastructure.
We’re building for expert users, which means we want to maintain a high UX bar, and at the same time create tools that are flexible and powerful enough to satisfy the needs of deeply engaged users.
Beyond working on the individual tools, we want someone who can find opportunities to create libraries and abstractions that capture common interaction idioms, and to sharpen our development practices and firm-wide approach to UI development.
We’re looking to add someone with a particular mix of skills and experience:
The role will provide opportunities to work in multiple parts of the stack, including front-ends, back-ends, middleware, and databases. The job will also involve working closely with traders and other end-users to better understand their needs.
Fluency in English is required
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We're looking for an experienced Vendor Relationship Manager / Market Data Analyst to join our Data Vendor Management team. This team forms and manages our relationships with various financial market data vendors and exchanges while partnering directly with traders, researchers, and internal stakeholders to identify and assess the data requirements that drive our trading strategies.
You will be responsible for negotiating new contracts and ongoing contract renewals and maintaining the inventory management platform for our contracts, including the cost structure for each. You will also help with usage reporting and audits to ensure that our team continues to best meet the firm's needs.
Managing this correctly requires working with several teams across Jane Street, including Legal, HR, Engineering, Accounting/Finance, and other business areas, to ensure that new contracts are fully understood and vetted, invoices are processed on time, and colleague requests for new data vendors and services are heard and considered.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com
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We are looking for a highly-driven Technical Program Manager who can provide organization and coordination support for our engineering initiatives. Technology is core to our business, and this role is an opportunity to work alongside our engineers as we build and optimize Jane Street’s trading technology.
You’ll draw from your technical background on a daily basis, leading projects through their entire lifecycle, including defining goals, developing timelines, tracking milestones, managing developer time, identifying risks, and coordinating with related teams. You’ll also communicate project schedules, priorities, and status updates to the larger organization.
Strong communication skills and the ability to manage competing priorities will be necessary to collaborate across a wide range of teams at Jane Street—including developers, business teams, operations, support—as well as with external financial entities, to make sure each project is delivered on time and meets or exceeds stated goals and expectations.
We operate in a flexible problem-solving environment that encourages people to think outside the box when developing processes and tools for the project at hand. The person in this role needs to be a strategic thinker who considers the goals of the group and project when problem solving.
This role sits within Jane Street’s technology group which designs, deploys, and supports all of the infrastructure that underpins our trading activities. The scope of our systems is large, and you'll gain insight into a broad cross section of the global market as you work to improve them. To succeed in this role, you must enjoy working independently on small teams, learning on the fly, and making decisions that have a real and immediate impact on the firm.
At Jane Street, the “P” in TPM can mean a lot of different things. Depending on the team, the person, and the circumstances, you may find yourself anywhere on the spectrum from Program Manager to Product Manager. As a result, you’ll be most successful at Jane Street if you’re comfortable with that sort of ambiguity, and happy to roll your sleeves up and dig into the problem at hand, bringing whatever relevant skills you have to bear, whether through large-scale program management and coordination, product vision, business context, or anything else. That’s also why you’ll find a second job posting for “Technical Product Manager” elsewhere on the site that looks just like this one — feel free to apply to whichever you think fits your experience and interests better and we’ll make sure your profile ends up in the right pipeline.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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Jane Street is hard at work building OxCaml, a branch of OCaml with a variety of extensions to support performance engineering. But designing and implementing the language is only half the battle: we need our developers to understand its nuances and program in OxCaml as experts. That's where you come in.
We’re looking for an experienced, skilled educator to help us develop materials and deliver courses to teach engineers at Jane Street how to use OxCaml effectively. You would work broadly across our internal educational programs, from expanding our OCaml Bootcamp for new hires to use OxCaml to developing specific tutorials to level-up experienced developers that need OxCaml's most advanced features.
This is a unique opportunity to work hand-in-hand with a language's designers and implementers to develop its educational component. You would be part of the team within Jane Street building the next generation of OxCaml.
Here’s what we’re looking for:
We’re excited to talk to people who have experience teaching CS topics in a university setting, as well as people who have spent time teaching technical topics in industrial settings.
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We are looking for a Software Engineer with experience in high-performance, low latency systems. You’ll work closely with our quantitative researchers and developers, taking a holistic approach to design and optimize our fast-trading systems.
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. The most important qualification is experience with low level systems programming and optimization, whether it is in C, C++, or any other language.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We're looking to hire an experienced Software Engineer with a background working on programming languages to join us. Jane Street's OCaml Language team focuses on improving OCaml as a foundation for our ever-growing technology stack, in collaboration with the greater OCaml community. We work on many different aspects of the language, aiming to make it easier for developers to express their ideas in OCaml, to improve the performance of the generated code, and to make the OCaml compiler itself faster and easier to use.
Over the years, we’ve extended the type system with support for novel language features, re-engineered the optimizer ground-up, and added feedback-directed optimization. We also extend and enhance the surrounding toolchain, working on tools for profiling, debugging and generating documentation. The vast majority of our work is open-source, and we upstream as much as we can to the mainstream OCaml compiler.
For this specialized role within the OCaml Language team, we are seeking candidates with multiple years of experience in practical language design and implementation in an industrial-strength implementation. Research experience and publications in programming languages is a plus, but not a requirement. No previous experience with OCaml or functional programming languages is required.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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Our goal is to give you a real sense of what it’s like to work at Jane Street full time. Over the course of your internship, you will explore ways to approach and solve exciting problems within your field of interest through fun and challenging classes, interactive sessions, and group discussions — and then you will have the chance to put those lessons to practical use.
As an intern, you are paired with full-time employees who act as mentors, collaborating with you on real-world projects we actually need done. When you’re not working on your project, you will have plenty of time to use our office amenities, physical and virtual educational resources, attend guest speakers and social events, and engage with the parts of our work that excite you the most.
If you’ve never thought about a career in finance, you’re in good company. Many of us were in the same position before working here. If you have a curious mind, a collaborative spirit, and a passion for solving interesting problems, we have a feeling you’ll fit right in.
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 internal systems. Some teams also use Python, so depending on the project, you might do some work with Python as well.
During the internship, you’ll be closely mentored by full-time software engineers. Mentors design intern projects based on their team’s current needs and are heavily invested in helping interns build maintainable, high-quality software that is intended to reach production. The work you will do is as varied and diverse as what full-timers work on, covering a wide range of problems, from high performance trading systems to programming language design and everything in between.
If you’d like to learn more, you can read about our interview and team placement processes and get a sense of what our most recent intern projects looked like!
We don’t expect you to have a background in finance, OCaml, functional programming, or any other specific field—we’re looking for smart people who enjoy solving interesting problems. We’re more interested in how you think and learn than what you currently know. You should be:
Please note: Jane Street will provide flights to and from Hong Kong as well as accommodation throughout the entirety of the program.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for Staff UX Designers capable of producing elegant design solutions, while also cultivating an environment for sustainable design growth at the firm. You will be placed on one of various teams within our Technology groups, depending on your particular background and focus.
Collaboration amongst teams and users across a wide variety of disciplines is integral to Jane Street, so we're very invested in building an intentional design culture that helps our colleagues do their best work. The interest in partnering with people who bring user experience process and thinking to projects has grown in parallel with the scale of the firm. You will be joining at an inflection point: we are actively growing our design talent to meet the demand.
With direct access to a diverse user community, you will lead initiatives to help your team understand what people need to do their jobs, and apply user research to help scope what products need to be built to address those needs. You will also help teams better understand how to approach user-centred research and how they can deploy these methods early and often during the product life cycle.
Demonstrating design craft is critical to the daily work of this role. As you scope work to be done in partnership with your team, you will sketch, storyboard and prototype possible solutions for better experiences. We will expect you to distil the complex routines of our user communities into approachable design solutions for people of all technical levels, whether they are for an internal team or targeted toward an external audience. Your scope of work will encompass initial conversations with people to learn more about their systems and challenges.
You should be willing to take the time needed to learn about our work and existing processes, while being flexible as we build a design presence. You will offer your insights on UX decisions across your team, advocate for usability testing across other parts of the firm, standardise user research methodologies and further define how our teams can best partner with a design collaborator.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are hiring Production Engineers in our Hong Kong and Singapore office. Jane Street Production Engineers are software developers who spend time both developing software and also providing high-quality support for software systems that are critical to Jane Street's trading business.
Many of our Production Engineers are embedded in various software teams; others are in standalone teams. In both situations we work alongside application developers with a common goal of creating and running great software systems. 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 and functions at Jane Street. We solve real-time issues and make a firm-wide impact. We take ownership of the architecture and design of systems that monitor and support the firm’s trading. We also design and develop the tools that we use, and it feels great to be able to shape these tools and then enjoy the improvements.
If you'd like to learn more, you can read about Production Engineering at Jane Street.
As Production Engineers:
We don’t expect you to have a background in functional programming, finance, or any other specific field—we’re looking for smart software developers who enjoy solving interesting problems. We’re more interested in how you think and learn than just what you currently know. You should be:
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for a highly-driven Technical Product Manager who can provide organization and coordination support for our engineering initiatives. Technology is core to our business, and this role is an opportunity to work alongside our engineers as we build and optimize Jane Street’s trading technology.
You’ll draw from your technical background on a daily basis, leading projects through their entire lifecycle, including defining goals, developing timelines, tracking milestones, managing developer time, identifying risks, and coordinating with related teams. You’ll also communicate project schedules, priorities, and status updates to the larger organization.
Strong communication skills and the ability to manage competing priorities will be necessary to collaborate across a wide range of teams at Jane Street—including developers, business teams, operations, support—as well as with external financial entities, to make sure each project is delivered on time and meets or exceeds stated goals and expectations.
We operate in a flexible problem-solving environment that encourages people to think outside the box when developing processes and tools for the project at hand. The person in this role needs to be a strategic thinker who considers the goals of the group and project when problem solving.
This role sits within Jane Street’s technology group which designs, deploys, and supports all of the infrastructure that underpins our trading activities. The scope of our systems is large, and you'll gain insight into a broad cross section of the global market as you work to improve them. To succeed in this role, you must enjoy working independently on small teams, learning on the fly, and making decisions that have a real and immediate impact on the firm.
At Jane Street, the “P” in TPM can mean a lot of different things. Depending on the team, the person, and the circumstances, you may find yourself anywhere on the spectrum from Product Manager to Program Manager. As a result, you’ll be most successful at Jane Street if you’re comfortable with that sort of ambiguity, and happy to roll your sleeves up and dig into the problem at hand, bringing whatever relevant skills you have to bear, whether through large-scale program management and coordination, product vision, business context, or anything else. That’s also why you’ll find a second job posting for “Technical Program Manager” elsewhere on the site that looks just like this one - feel free to apply to whichever you think fits your experience and interests better and we’ll make sure your profile ends up in the right pipeline.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
Apply to Jane StreetShare this job
We are looking for a highly-driven Technical Programme Manager who can provide organisation and coordination support for our engineering initiatives. Technology is core to our business, and this role is an opportunity to work alongside our engineers as we build and optimise Jane Street’s trading technology.
You’ll draw from your technical background on a daily basis, leading projects through their entire lifecycle, including defining goals, developing timelines, tracking milestones, managing developer time, identifying risks, and coordinating with related teams. You’ll also communicate project schedules, priorities, and status updates to the larger organisation.
Strong communication skills and the ability to manage competing priorities will be necessary to collaborate across a wide range of teams at Jane Street — including developers, business teams, operations, and support — as well as with external counterparties, regulators, and clients, to make sure each project is delivered on time and meets or exceeds stated goals and expectations.
We operate in a flexible problem-solving environment that encourages people to think outside the box when developing processes and tools for the project at hand. The person in this role needs to be a strategic thinker who considers the goals of the firm, group, and project when problem solving.
This role sits within Jane Street’s technology group, which designs, deploys, and supports all of the infrastructure that underpins our trading activities. The scope of our systems is large, and you'll gain insight into a broad cross section of the global markets as you work to improve them. To succeed in this role, you must enjoy working independently on small teams, learning on the fly, and making decisions that have a real and immediate impact on the firm.
At Jane Street, the “P” in TPM can mean a lot of different things. Depending on the team, the person, and the circumstances, you may find yourself anywhere on the spectrum from Programme Manager to Product Manager. As a result, you’ll be most successful at Jane Street if you’re comfortable with that sort of ambiguity, and happy to roll your sleeves up and dig into the problem at hand, bringing whatever relevant skills you have to bear, whether through large-scale programme management and coordination, product vision, business context, or anything else. That’s also why you’ll find a second job posting for “Technical Product Manager” elsewhere on the site that looks just like this one — feel free to apply to whichever you think fits your experience and interests better and we’ll make sure your profile ends up in the right pipeline.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
Apply to Jane StreetShare this job
We are looking for a highly-driven Technical Product Manager who can provide organisation and coordination support for our engineering initiatives. Technology is core to our business, and this role is an opportunity to work alongside our engineers as we build and optimise Jane Street’s trading technology.
You’ll draw from your technical background on a daily basis, leading projects through their entire lifecycle, including defining goals, developing timelines, tracking milestones, managing developer time, identifying risks, and coordinating with related teams. You’ll also communicate project schedules, priorities, and status updates to the larger organisation.
Strong communication skills and the ability to manage competing priorities will be necessary to collaborate across a wide range of teams at Jane Street—including developers, business teams, operations, support—as well as with external financial entities, to make sure each project is delivered on time and meets or exceeds stated goals and expectations.
We operate in a flexible problem-solving environment that encourages people to think outside the box when developing processes and tools for the project at hand. The person in this role needs to be a strategic thinker who considers the goals of the group and project when problem solving.
This role sits within Jane Street’s technology group which designs, deploys, and supports all of the infrastructure that underpins our trading activities. The scope of our systems is large, and you'll gain insight into a broad cross section of the global market as you work to improve them. To succeed in this role, you must enjoy working independently on small teams, learning on the fly, and making decisions that have a real and immediate impact on the firm.
At Jane Street, the “P” in TPM can mean a lot of different things. Depending on the team, the person, and the circumstances, you may find yourself anywhere on the spectrum from Product Manager to Program Manager. As a result, you’ll be most successful at Jane Street if you’re comfortable with that sort of ambiguity, and happy to roll your sleeves up and dig into the problem at hand, bringing whatever relevant skills you have to bear, whether through large-scale program management and coordination, product vision, business context, or anything else. That’s also why you’ll find a second job posting for “Technical Program Manager” elsewhere on the site that looks just like this one - feel free to apply to whichever you think fits your experience and interests better and we’ll make sure your profile ends up in the right pipeline.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We're looking to hire an experienced Software Engineer with a background working on programming languages to join us. Jane Street's OCaml Language team focuses on improving OCaml as a foundation for our ever-growing technology stack, in collaboration with the greater OCaml community. We work on many different aspects of the language, aiming to make it easier for developers to express their ideas in OCaml, to improve the performance of the generated code, and to make the OCaml compiler itself faster and easier to use.
Over the years, we’ve extended the type system with support for novel language features, re-engineered the optimizer ground-up, and added feedback-directed optimization. We also extend and enhance the surrounding toolchain, working on tools for profiling, debugging and generating documentation. The vast majority of our work is open-source, and we upstream as much as we can to the mainstream OCaml compiler.
For this specialised role within the OCaml Language team, we are seeking candidates with multiple years of experience in practical language design and implementation in an industrial-strength implementation. Research experience and publications in programming languages is a plus, but not a requirement. No previous experience with OCaml or functional programming languages is required.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We’re looking for Software Engineers who want to help us design and build the systems and tools that run the firm. You’ll find Software Engineers in all parts of Jane Street, solving real problems in critical areas ranging from trading desks to our accounting team, as well as building foundational infrastructure, whether that means implementing network monitoring or risk models.
We are big believers in functional programming and, using OCaml, a statically -typed functional programming language, as our primary tool. More recently, Python has become a vital part of Jane Street’s research and trading work, acting as the go-to language for data analysis, visualization, and machine learning.
Beyond our own environment, we also recognize the value of open source software, leveraging it in our daily work and releasing over a million lines of our own code as open source. We’re also always looking for ways to expand open source projects, and provide ongoing support to things like Mercurial, the OCaml compiler, and the OPAM package manager. That said, we’re interested in talented engineers with experience in any language—most of us came in with little to no practical experience in OCaml before we joined.
If you’d like to learn more, you can read about our interview process and meet some of our newest hires.
We don’t expect you to have a background in functional programming, OCaml, Python, finance, or any other specific field—we’re looking for smart programmers who enjoy solving interesting problems. We’re more interested in how you think and learn than what you currently know. You should be:
If you'd like to get an idea of what we cover in our software engineering interview process, you can visit our interview prep page.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for a FIX Onboarding and Connectivity Engineer to help us grow both our proprietary trading capabilities and client-facing trading business. This role involves working on the technical processes that enable our trading desks to access new products and exchanges, while also onboarding external clients to trade with Jane Street. You'll work closely with our trading teams to help them grow the business, and with our technology teams to build state-of-the-art connectivity systems.
Jane Street is a place where people come to learn new things (and to eventually teach others what they know). While we welcome experience with FIX and other order flow/electronic trading protocols, and value software engineering backgrounds, we're excited to teach you the specifics of our trading and technology.
The majority of your time will focus on onboarding and connectivity projects across both proprietary and client-facing trading. This will involve prioritising requests from the trading desks; working with our developers, infrastructure engineers, and external parties; and seeing the onboarding process all the way through to production. You will often find yourself bridging the gap between our clients, trading teams, and technology teams, requiring strong communication and coordination skills, but you will also need to be comfortable navigating the Unix command line and developing code of varying complexity to deliver these projects.
Through this work, we will expect you to keep a thoughtful and empathetic perspective on the way the team functions and collaborates as a whole, and to suggest ways we can improve and promote our best practices. We'll also look to you for opinions on how we approach and deliver project work, and how we should interface with other internal teams.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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Our goal is to give you a real sense of what it’s like to work at Jane Street full time. Over the course of your internship, you will explore ways to approach and solve exciting problems within your field of interest through fun and challenging classes, interactive sessions, and group discussions — and then you will have the chance to put those lessons to practical use.
As an intern, you are paired with full-time employees who act as mentors, collaborating with you on real-world projects we actually need done. When you’re not working on your project, you will have plenty of time to use our office amenities, physical and virtual educational resources, attend guest speakers and social events, and engage with the parts of our work that excite you the most.
If you’ve never thought about a career in finance, you’re in good company. Many of us were in the same position before working here. If you have a curious mind, a collaborative spirit, and a passion for solving interesting problems, we have a feeling you’ll fit right in.
Learn more about Jane Street’s internship program here.
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 internal systems. Some teams also use Python, so depending on the project, you might do some work with Python as well.
During the internship, you'll be closely mentored by full-time software engineers. Mentors design intern projects based on their team's current needs and are heavily invested in helping interns build maintainable, high-quality software that is intended to reach production. The projects you will work on are as varied and diverse as those full-timers work on, covering a wide range of problems, from high performance trading systems to programming language design and everything in between.
If you’d like to learn more, you can read about our interview and team placement processes and get a sense of what our most recent intern projects looked like!
We don’t expect you to have a background in finance, OCaml, functional programming, or any other specific field—we’re looking for smart people who enjoy solving interesting problems. We’re more interested in how you think and learn than what you currently know. You should be:
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking to hire an Engineer with experience in both software and hardware design to help us build our FPGA-based applications.
We're big believers in the ability of tools to make programming faster, more pleasant, and more reliable. We apply these same principles to our FPGA Engineering work, and we’re looking for people who are interested in using programming language technology to improve the process of designing, testing, and validating hardware designs. We use Hardcaml, an OCaml library for succinctly describing hardware in RTL. Hardcaml is tightly integrated into our development environment, so you’ll also gain lots of exposure to the libraries and tools that are foundational to our internal systems. No previous knowledge of Hardcaml is required.
In this role, you’ll work on the ground-up design and implementation of new FPGA applications, and help extend and refine the high-level design and testing tools that we use internally. Your day-to-day work will predominantly involve OCaml & Hardcaml, for both RTL design and testing/integration, but you can also expect to work with some Verilog and C. While you don’t need to have worked with OCaml specifically, a good background in typed programming languages is a plus.
If you’d like to learn more, you can read about our interview process, meet some of our newest hires, or check out our OCaml All The Way Down talk and Programmable Hardware podcast episode.
We don’t expect you to have a background in OCaml, finance, or any other specific field—we’re looking for smart programmers who will approach hardware design with a software engineering mindset. We’re more interested in how you think and learn than what you currently know. You should be:
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We're always hiring software engineers for all of our offices. Technology is at the core of how we approach our work, and engineers are intimately involved in every area of the business.
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’s research and trading work, acting as the go-to language for data analysis, visualization, and machine learning.
We also believe in the value of open source software, using it in our daily work and releasing over a million lines of our own code as open source.
If you'd like to get an idea of what we cover in our software engineering interview process, you can visit our interview prep page.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We’re looking to hire a Software Engineer with experience working on language compilers and runtimes. Our team maintains a framework used at Jane Street for a wide variety of purposes, including financial modeling, risk calculation, and custom alerting. Our system evaluates, in real time and in parallel, a large, irregular, and dynamic graph of user-specified computations. We are particularly focused on understanding, quantifying, and improving its performance and scalability. The technical problems we face relate to implementation of programming languages and their runtimes, efficient distribution and scheduling of computation graphs, and effective measurement and communication of resource usage.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for a highly-driven Technical Program Manager who can provide organization and coordination support for our engineering initiatives. Technology is core to our business, and this role is an opportunity to work alongside our engineers as we build and optimize Jane Street’s trading technology.
You’ll draw from your technical background on a daily basis, leading projects through their entire lifecycle, including defining goals, developing timelines, tracking milestones, managing developer time, identifying risks, and coordinating with related teams. You’ll also communicate project schedules, priorities, and status updates to the larger organization.
Strong communication skills and the ability to manage competing priorities will be necessary to collaborate across a wide range of teams at Jane Street—including developers, business teams, operations, support—as well as with external financial entities, to make sure each project is delivered on time and meets or exceeds stated goals and expectations.
We operate in a flexible problem-solving environment that encourages people to think outside the box when developing processes and tools for the project at hand. The person in this role needs to be a strategic thinker who considers the goals of the group and project when problem solving.
This role sits within Jane Street’s technology group which designs, deploys, and supports all of the infrastructure that underpins our trading activities. The scope of our systems is large, and you'll gain insight into a broad cross section of the global market as you work to improve them. To succeed in this role, you must enjoy working independently on small teams, learning on the fly, and making decisions that have a real and immediate impact on the firm.
At Jane Street, the “P” in TPM can mean a lot of different things. Depending on the team, the person, and the circumstances, you may find yourself anywhere on the spectrum from Program Manager to Product Manager. As a result, you’ll be most successful at Jane Street if you’re comfortable with that sort of ambiguity, and happy to roll your sleeves up and dig into the problem at hand, bringing whatever relevant skills you have to bear, whether through large-scale program management and coordination, product vision, business context, or anything else. That’s also why you’ll find a second job posting for “Technical Product Manager” elsewhere on the site that looks just like this one —– feel free to apply to whichever you think fits your experience and interests better and we’ll make sure your profile ends up in the right pipeline.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for a FIX Onboarding and Connectivity Engineer to help us grow both our proprietary trading capabilities and client-facing trading business. This role involves working on the technical processes that enable our trading desks to access new products and exchanges, while also onboarding external clients to trade with Jane Street. You'll work closely with our trading teams to help them grow the business, and with our technology teams to build state-of-the-art connectivity systems.
Jane Street is a place where people come to learn new things (and to eventually teach others what they know). While we welcome experience with FIX and other order flow/electronic trading protocols, and value software engineering backgrounds, we're excited to teach you the specifics of our trading and technology.
The majority of your time will focus on onboarding and connectivity projects across both proprietary and client-facing trading. This will involve prioritising requests from the trading desks; working with our developers, infrastructure engineers, and external parties; and seeing the onboarding process all the way through to production. You will often find yourself bridging the gap between our clients, trading teams, and technology teams, requiring strong communication and coordination skills, but you will also need to be comfortable navigating the Unix command line and developing code of varying complexity to deliver these projects.
Through this work, we will expect you to keep a thoughtful and empathetic perspective on the way the team functions and collaborates as a whole, and to suggest ways we can improve and promote our best practices. We'll also look to you for opinions on how we approach and deliver project work, and how we should interface with other internal teams.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We're looking to hire a programmer-who-writes, or a writer-who-codes.
Here are the kinds of things we’d like to have this person work on:
In terms of skills, we want someone who is both an excellent writer and good enough at programming to navigate our codebase, work through our tutorials, and write up examples. You might spend meaningful time embedded as an engineer on one of our projects, just to understand how we write software. But experience with functional programming, expressive type systems, OCaml, or finance are all unnecessary—we’re happy to teach you about these things here.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for a highly-driven Technical Program Manager who can provide organization and coordination support for our engineering initiatives. Technology is core to our business, and this role is an opportunity to work alongside our engineers as we build and optimize Jane Street’s trading technology.
You’ll draw from your technical background on a daily basis, leading projects through their entire lifecycle, including defining goals, developing timelines, tracking milestones, managing developer time, identifying risks, and coordinating with related teams. You’ll also communicate project schedules, priorities, and status updates to the larger organization.
Strong communication skills and the ability to manage competing priorities will be necessary to collaborate across a wide range of teams at Jane Street—including developers, business teams, operations, support—as well as with external financial entities, to make sure each project is delivered on time and meets or exceeds stated goals and expectations.
We operate in a flexible problem-solving environment that encourages people to think outside the box when developing processes and tools for the project at hand. The person in this role needs to be a strategic thinker who considers the goals of the group and project when problem solving.
This role sits within Jane Street’s technology group which designs, deploys, and supports all of the infrastructure that underpins our trading activities. The scope of our systems is large, and you'll gain insight into a broad cross section of the global market as you work to improve them. To succeed in this role, you must enjoy working independently on small teams, learning on the fly, and making decisions that have a real and immediate impact on the firm.
At Jane Street, the “P” in TPM can mean a lot of different things. Depending on the team, the person, and the circumstances, you may find yourself anywhere on the spectrum from Program Manager to Product Manager. As a result, you’ll be most successful at Jane Street if you’re comfortable with that sort of ambiguity, and happy to roll your sleeves up and dig into the problem at hand, bringing whatever relevant skills you have to bear, whether through large-scale program management and coordination, product vision, business context, or anything else. That’s also why you’ll find a second job posting for “Technical Product Manager” elsewhere on the site that looks just like this one —– feel free to apply to whichever you think fits your experience and interests better and we’ll make sure your profile ends up in the right pipeline.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We’re looking for a software engineer who is passionate about front-end development, user-interface design, and typed functional programming. You would take part in the design and implementation of our next-generation of browser-based tools for operating our trading infrastructure.
We’re building for expert users, which means we want to maintain a high UX bar, and at the same time create tools that are flexible and powerful enough to satisfy the needs of deeply engaged users.
Beyond working on the individual tools, we want someone who can find opportunities to create libraries and abstractions that capture common interaction idioms, and to sharpen our development practices and firm-wide approach to UI development.
We’re looking to add someone with a particular mix of skills and experience:
The role will provide opportunities to work in multiple parts of the stack, including front-ends, back-ends, middleware, and databases. The job will also involve working closely with traders and other end-users to better understand their needs.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com'
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We are excited to announce research internships in our Tools and Compilers group. We’re looking for PhD and masters students with outstanding research experience in programming languages, compilers, verification, and related areas.
Jane Street's Compilers team focuses on improving OCaml as a foundation for Jane Street's ever-growing technology stack, in collaboration with the greater OCaml community. We work on many different aspects of the compiler, aiming to make it easier for developers to express their ideas in OCaml, to improve the performance of the generated code, and to make the OCaml compiler itself faster and easier to use.
Over the years, we extended the type system with support for novel language features, re-engineered the optimizer ground-up, and added feedback-directed optimization. We also extend and enhance the surrounding toolchain, working on tools for profiling, debugging, documenting, and building automation. The vast majority of our work is open-source, and we upstream as much as we can to the mainstream OCaml compiler.
During the application process, we will work with you to identify a project that aligns with your research expertise and interests. Examples of areas we are interested in exploring include:
During the internship, you will work in collaboration with your mentors on one project for about 10-12 weeks. You’ll learn how we use OCaml in our day-to-day work, and gain exposure to the libraries and tools that are foundational to our internal systems. You’ll gain a better understanding of the wide range of problems we solve every day. You’ll try out new ideas and apply state-of-the art research to a large actively-developed production codebase.
You’ll also be able to access our physical and virtual educational resources, attend guest speakers and social events, and hopefully get a real sense of what it would be like to work here full time.
We’re looking for PhD and masters students with outstanding research experience in programming languages, compilers, verification, and related areas. We don’t expect you to have a background in finance, OCaml, or functional programming. Fluency in English required. Please include the list of your peer-reviewed publications in your resume.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We're always hiring software engineers for all of our offices. Technology is at the core of how we approach our work, and engineers are intimately involved in every area of the business.
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’s research and trading work, acting as the go-to language for data analysis, visualization, and machine learning.
We also believe in the value of open source software, using it in our daily work and releasing over a million lines of our own code as open source.
If you'd like to get an idea of what we cover in our software engineering interview process, you can visit our interview prep page.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We’re looking for a Market Data Specialist to join our Metadata team, working on improving and supporting our internal golden copy Security Master and Corporate Action Management systems. You’ll be responsible for configuring our systems to improve data quality, helping with data cleaning and validation, solving support issues for internal clients, and interfacing with our data providers.
You’ll be embedded into the Metadata Systems Engineering team and will work with software developers, traders, and operations professionals across the firm.
Responsibilities include:
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for a highly-driven Technical Product Manager who can provide organization and coordination support for our engineering initiatives. Technology is core to our business, and this role is an opportunity to work alongside our engineers as we build and optimize Jane Street’s trading technology.
You’ll draw from your technical background on a daily basis, leading projects through their entire lifecycle, including defining goals, developing timelines, tracking milestones, managing developer time, identifying risks, and coordinating with related teams. You’ll also communicate project schedules, priorities, and status updates to the larger organization.
Strong communication skills and the ability to manage competing priorities will be necessary to collaborate across a wide range of teams at Jane Street—including developers, business teams, operations, support—as well as with external financial entities, to make sure each project is delivered on time and meets or exceeds stated goals and expectations.
We operate in a flexible problem-solving environment that encourages people to think outside the box when developing processes and tools for the project at hand. The person in this role needs to be a strategic thinker who considers the goals of the group and project when problem solving.
This role sits within Jane Street’s technology group which designs, deploys, and supports all of the infrastructure that underpins our trading activities. The scope of our systems is large, and you'll gain insight into a broad cross section of the global market as you work to improve them. To succeed in this role, you must enjoy working independently on small teams, learning on the fly, and making decisions that have a real and immediate impact on the firm.
At Jane Street, the “P” in TPM can mean a lot of different things. Depending on the team, the person, and the circumstances, you may find yourself anywhere on the spectrum from Product Manager to Program Manager. As a result, you’ll be most successful at Jane Street if you’re comfortable with that sort of ambiguity, and happy to roll your sleeves up and dig into the problem at hand, bringing whatever relevant skills you have to bear, whether through large-scale program management and coordination, product vision, business context, or anything else. That’s also why you’ll find a second job posting for “Technical Program Manager” elsewhere on the site that looks just like this one - feel free to apply to whichever you think fits your experience and interests better and we’ll make sure your profile ends up in the right pipeline.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We're looking for a Data Specialist to help us understand, improve, and maintain the data that fuels our trading. You'll be embedded in an engineering team and will work closely with software developers, traders, and operations professionals across the firm.
Meeting the needs of these groups involves diverse types of work including analyzing, onboarding, validating, and producing large data sets from many different sources. You'll collaborate closely with your direct team and trading desks to understand requirements and improve our software. In this role, you will interface directly with exchanges and data vendors to raise, track, and resolve issues critical to our trading as well as develop deep domain knowledge to help interpret and consume our data, driving business growth in new areas.
While prior experience with financial data would be nice, we don’t expect you to have a finance background.
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We're always hiring software engineers for all of our offices. Technology is at the core of how we approach our work, and engineers are intimately involved in every area of the business.
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’s research and trading work, acting as the go-to language for data analysis, visualization, and machine learning.
We also believe in the value of open source software, using it in our daily work and releasing over a million lines of our own code as open source.
If you'd like to get an idea of what we cover in our software engineering interview process, you can visit our interview prep page.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We are hiring Production Engineers in our Hong Kong office. Jane Street Production Engineers are software developers who spend time both developing software and also providing high-quality support for software systems that are critical to Jane Street's trading business.
Many of our Production Engineers are embedded in various software teams; others are in standalone teams. In both situations we work alongside application developers with a common goal of creating and running great software systems. 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 and functions at Jane Street. We solve real-time issues and make a firm-wide impact. We take ownership of the architecture and design of systems that monitor and support the firm’s trading. We also design and develop the tools that we use, and it feels great to be able to shape these tools and then enjoy the improvements.
If you'd like to learn more, you can read about Production Engineering at Jane Street.
As Production Engineers:
We don’t expect you to have a background in functional programming, finance, or any other specific field—we’re looking for smart software developers who enjoy solving interesting problems. We’re more interested in how you think and learn than just what you currently know. You should be:
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We’re looking for Software Engineers who want to help us design and build the systems and tools that run the firm. You’ll find Software Engineers in all parts of Jane Street, solving real problems in critical areas ranging from trading desks to our accounting team, as well as building foundational infrastructure, whether that means implementing network monitoring or risk models.
We are big believers in functional programming and, using OCaml, a statically -typed functional programming language, as our primary tool. More recently, Python has become a vital part of Jane Street’s research and trading work, acting as the go-to language for data analysis, visualization, and machine learning.
Beyond our own environment, we also recognize the value of open source software, leveraging it in our daily work and releasing over a million lines of our own code as open source. We’re also always looking for ways to expand open source projects, and provide ongoing support to things like Mercurial, the OCaml compiler, and the OPAM package manager. That said, we’re interested in talented engineers with experience in any language—most of us came in with little to no practical experience in OCaml before we joined.
If you’d like to learn more, you can read about our interview process and meet some of our newest hires.
We don’t expect you to have a background in functional programming, OCaml, Python, finance, or any other specific field—we’re looking for smart programmers who enjoy solving interesting problems. We’re more interested in how you think and learn than what you currently know. You should be:
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for Staff UX Designers capable of producing elegant design solutions, while also cultivating an environment for sustainable design growth at the firm. You will be placed on one of various teams within our Technology groups, depending on your particular background and focus.
Collaboration amongst teams and users across a wide variety of disciplines is integral to Jane Street, so we're very invested in building an intentional design culture that helps our colleagues do their best work. The interest in partnering with people who bring user experience process and thinking to projects has grown in parallel with the scale of the firm. You will be joining at an inflection point: we are actively growing our design talent to meet the demand.
With direct access to a diverse user community, you will lead initiatives to help your team understand what people need to do their jobs, and apply user research to help scope what products need to be built to address those needs. You will also help teams better understand how to approach user-centred research and how they can deploy these methods early and often during the product life cycle.
Demonstrating design craft is critical to the daily work of this role. As you scope work to be done in partnership with your team, you will sketch, storyboard and prototype possible solutions for better experiences. We will expect you to distil the complex routines of our user communities into approachable design solutions for people of all technical levels, whether they are for an internal team or targeted toward an external audience. Your scope of work will encompass initial conversations with people to learn more about their systems and challenges.
You should be willing to take the time needed to learn about our work and existing processes, while being flexible as we build a design presence. You will offer your insights on UX decisions across your team, advocate for usability testing across other parts of the firm, standardise user research methodologies and further define how our teams can best partner with a design collaborator.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We’re looking for Software Engineers who want to help us design and build the systems and tools that run the firm. You’ll find Software Engineers in all parts of Jane Street, solving real problems in critical areas ranging from trading desks to our accounting team, as well as building foundational infrastructure, whether that means implementing network monitoring or risk models.
We are big believers in functional programming and, using OCaml, a statically -typed functional programming language, as our primary tool. More recently, Python has become a vital part of Jane Street’s research and trading work, acting as the go-to language for data analysis, visualization, and machine learning.
Beyond our own environment, we also recognize the value of open source software, leveraging it in our daily work and releasing over a million lines of our own code as open source. We’re also always looking for ways to expand open source projects, and provide ongoing support to things like Mercurial, the OCaml compiler, and the OPAM package manager. That said, we’re interested in talented engineers with experience in any language—most of us came in with little to no practical experience in OCaml before we joined.
If you’d like to learn more, you can read about our interview process and meet some of our newest hires.
We don’t expect you to have a background in functional programming, OCaml, Python, finance, or any other specific field—we’re looking for smart programmers who enjoy solving interesting problems. We’re more interested in how you think and learn than what you currently know. You should be:
If you'd like to get an idea of what we cover in our software engineering interview process, you can visit our interview prep page.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
Apply to Jane StreetShare this job
We are excited to announce research internships in our Tools and Compilers group. We're looking for PhD and masters students with outstanding research experience in programming languages, compilers, verification, and related areas.
Jane Street's Compilers team focuses on improving OCaml as a foundation for Jane Street's ever-growing technology stack, in collaboration with the greater OCaml community. We work on many different aspects of the compiler, aiming to make it easier for developers to express their ideas in OCaml, to improve the performance of the generated code, and to make the OCaml compiler itself faster and easier to use.
Over the years, we extended the type system with support for novel language features, re-engineered the optimizer ground-up, and added feedback-directed optimization. We also extend and enhance the surrounding toolchain, working on tools for profiling, debugging, documenting, and building automation. The vast majority of our work is open-source, and we upstream as much as we can to the mainstream OCaml compiler.
During the application process, we will work with you to identify a project that aligns with your research expertise and interests. Examples of areas we are interested in exploring include:
During the internship, you will work in collaboration with your mentors on one project for about 10-12 weeks. You'll learn how we use OCaml in our day-to-day work, and gain exposure to the libraries and tools that are foundational to our internal systems. You'll gain a better understanding of the wide range of problems we solve every day. You'll try out new ideas and apply state-of-the-art research to a large actively-developed production codebase.
You'll also be able to access our physical and virtual educational resources, attend guest speakers and social events, and hopefully get a real sense of what it would be like to work here full-time.
We're looking for PhD and masters students with outstanding research experience in programming languages, compilers, verification, and related areas. We don't expect you to have a background in finance, OCaml, or functional programming. Please include the list of your peer-reviewed publications in your resume.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for a Data Engineer to turn messy, real-world datasets into reliable inputs for research and trading. Jane Street depends on data from a wide variety of sources to understand markets and the global economy—think world news, decades of weather patterns, deidentified credit card spending, or packet captures of stock exchange market data feeds. Clean, well-structured data is the difference between noise and a profitable trading signal.
You'll work closely with trading desks to identify Jane Street's data needs, evaluate datasets, and build pipelines that ingest and transform external data. You'll figure out what data means and how best to represent it. We build our own tools and software when needed, so you'll also help shape the systems you use every day.
This is a collaborative role, but you'll own your work from end to end. It requires a mix of engineering, data analysis, and product sense. You'll develop deep expertise in your data domains and use that understanding to decide what's worth building next.
Prior experience with financial data is helpful but not required. We’re happy to hire talented engineers and teach them what they need to know.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are hiring Production Engineers in our New York office. Jane Street Production Engineers are software developers who spend time both developing software and also providing high-quality support for software systems that are critical to Jane Street's trading business.
Many of our Production Engineers are embedded in various software teams; others are in standalone teams. In both situations we work alongside application developers with a common goal of creating and running great software systems. 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 and functions at Jane Street. We solve real-time issues and make a firm-wide impact. We take ownership of the architecture and design of systems that monitor and support the firm’s trading. We also design and develop the tools that we use, and it feels great to be able to shape these tools and then enjoy the improvements.
If you'd like to learn more, you can read about Production Engineering at Jane Street.
As Production Engineers:
We don’t expect you to have a background in functional programming, finance, or any other specific field—we’re looking for smart software developers who enjoy solving interesting problems. We’re more interested in how you think and learn than just what you currently know. You should be:
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
Apply to Jane StreetShare this job
We are looking for a Data Engineer to turn messy, real-world datasets into reliable inputs for research and trading. Jane Street depends on data from a wide variety of sources to understand markets and the global economy—think world news, decades of weather patterns, deidentified credit card spending, or packet captures of stock exchange market data feeds. Clean, well-structured data is the difference between noise and a profitable trading signal.
You'll work closely with trading desks to identify Jane Street's data needs, evaluate datasets, and build pipelines that ingest and transform external data. You'll figure out what data means and how best to represent it. We build our own tools and software when needed, so you'll also help shape the systems you use every day.
This is a collaborative role, but you'll own your work from end to end. It requires a mix of engineering, data analysis, and product sense. You'll develop deep expertise in your data domains and use that understanding to decide what's worth building next.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We are looking to hire an Engineer with experience in both software and hardware design to help us build our FPGA-based applications.
We're big believers in the ability of tools to make programming faster, more pleasant, and more reliable. We apply these same principles to our FPGA Engineering work, and we’re looking for people who are interested in using programming language technology to improve the process of designing, testing, and validating hardware designs. We use Hardcaml, an OCaml library for succinctly describing hardware in RTL. Hardcaml is tightly integrated into our development environment, so you’ll also gain lots of exposure to the libraries and tools that are foundational to our internal systems. No previous knowledge of Hardcaml is required.
In this role, you’ll work on the ground-up design and implementation of new FPGA applications, and help extend and refine the high-level design and testing tools that we use internally. Your day-to-day work will predominantly involve OCaml & Hardcaml, for both RTL design and testing/integration, but you can also expect to work with some Verilog and C. While you don’t need to have worked with OCaml specifically, a good background in typed programming languages is a plus.
If you’d like to learn more, you can read about our interview process, meet some of our newest hires, or check out our OCaml All The Way Down talk and Programmable Hardware podcast episode.
We don’t expect you to have a background in OCaml, finance, or any other specific field—we’re looking for smart programmers who will approach hardware design with a software engineering mindset. We’re more interested in how you think and learn than what you currently know. You should be:
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
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We are hiring Production Engineers in our London office. Jane Street Production Engineers are software developers who spend time both developing software and also providing high-quality support for software systems that are critical to Jane Street's trading business.
Many of our Production Engineers are embedded in various software teams; others are in standalone teams. In both situations we work alongside application developers with a common goal of creating and running great software systems. 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 and functions at Jane Street. We solve real-time issues and make a firm-wide impact. We take ownership of the architecture and design of systems that monitor and support the firm’s trading. We also design and develop the tools that we use, and it feels great to be able to shape these tools and then enjoy the improvements.
If you'd like to learn more, you can read about Production Engineering at Jane Street.
As Production Engineers:
We don’t expect you to have a background in functional programming, finance, or any other specific field—we’re looking for smart software developers who enjoy solving interesting problems. We’re more interested in how you think and learn than just what you currently know. You should be:
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We are looking for a Data Engineer to turn messy, real-world datasets into reliable inputs for research and trading. Jane Street depends on data from a wide variety of sources to understand markets and the global economy—think world news, decades of weather patterns, deidentified credit card spending, or packet captures of stock exchange market data feeds. Clean, well-structured data is the difference between noise and a profitable trading signal.
You'll work closely with trading desks to identify Jane Street's data needs, evaluate datasets, and build pipelines that ingest and transform external data. You'll figure out what data means and how best to represent it. We build our own tools and software when needed, so you'll also help shape the systems you use every day.
This is a collaborative role, but you'll own your work from end to end. It requires a mix of engineering, data analysis, and product sense. You'll develop deep expertise in your data domains and use that understanding to decide what's worth building next.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We’re looking to hire a Software Engineer with experience working on programming languages. Our team maintains a framework used at Jane Street for a wide variety of purposes, including financial modeling, risk calculation, and custom alerting. Our system evaluates, in real time and in parallel, a large, irregular, and dynamic graph of calculations, described in a custom ML-like programming language.
This role focuses on improving and maintaining the language and surrounding ecosystem through a wide range of areas: core language features, standard library management, editor integrations, and more. The language is widely used for critical firm functions, yet offers substantial opportunity for extension and improvement. You should be able to balance the work of understanding and supporting existing uses, as well as organizing and driving new functionality.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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We’re looking for Software Engineers who want to help us design and build the systems and tools that run the firm. You’ll find Software Engineers in all parts of Jane Street, solving real problems in critical areas ranging from trading desks to our accounting team, as well as building foundational infrastructure, whether that means implementing network monitoring or risk models.
We are big believers in functional programming and, using OCaml, a statically -typed functional programming language, as our primary tool. More recently, Python has become a vital part of Jane Street’s research and trading work, acting as the go-to language for data analysis, visualization, and machine learning.
Beyond our own environment, we also recognize the value of open source software, leveraging it in our daily work and releasing over a million lines of our own code as open source. We’re also always looking for ways to expand open source projects, and provide ongoing support to things like Mercurial, the OCaml compiler, and the OPAM package manager. That said, we’re interested in talented engineers with experience in any language—most of us came in with little to no practical experience in OCaml before we joined.
If you’d like to learn more, you can read about our interview process and meet some of our newest hires.
We don’t expect you to have a background in functional programming, OCaml, Python, finance, or any other specific field—we’re looking for smart programmers who enjoy solving interesting problems. We’re more interested in how you think and learn than what you currently know. You should be:
If you'd like to get an idea of what we cover in our software engineering interview process, you can visit our interview prep page.
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Ready to apply?
Apply to Jane StreetCookies & analytics
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