Software Engineer

3 Hours ago • All levels

Job Summary

Job Description

This role is for Software Engineers who will be involved in designing and building the systems and tools that run the firm. They will be solving real problems in areas ranging from trading desks to the accounting team, as well as building foundational infrastructure. The team uses OCaml as the primary tool and Python for data analysis, visualization, and machine learning. The company values open-source software and encourages expanding open-source projects. The ideal candidate is a talented programmer with a love for technology, is intellectually curious, collaborative, and eager to learn, and is humble and unafraid to ask questions and admit mistakes.
Must have:
  • Top-notch programmer with a love for technology
  • Intellectually curious
  • Collaborative
  • Eager to learn
  • Humble and unafraid to ask questions

Job Details

About the Position

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.

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.

About You

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:

  • A top-notch programmer with a love for technology
  • Intellectually curious, collaborative, and eager to learn
  • Humble and unafraid to ask questions and admit mistakes

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.

Similar Jobs

Head Digital Works - Data Scientist

Head Digital Works

Hyderabad, Telangana, India (On-Site)
10 Months ago
Tutotoons - AI Specialist

Tutotoons

Kaunas, Kaunas County, Lithuania (Hybrid)
2 Weeks ago
Epic Games - Senior Server Programmer

Epic Games

Cary, North Carolina, United States (On-Site)
1 Month ago
Creative Assembly - Lead Technical Animator

Creative Assembly

Sofia, Sofia City Province, Bulgaria (Hybrid)
1 Week ago
PwC - IN-Manager_ Advanced Analytics & ML _D&A_Advisory_Gurgaon

PwC

Gurugram, Haryana, India (On-Site)
7 Months ago

Get notifed when new similar jobs are uploaded

Similar Skill Jobs

Riot Games - Senior Technical Artist (UI)

Riot Games

Los Angeles, California, United States (On-Site)
5 Days ago
Visa - Senior Manager - Cloud Infrastructure Engineering

Visa

Ashburn, Virginia, United States (Hybrid)
6 Days ago
BigID - QA Engineer

BigID

Hyderabad, Telangana, India (Hybrid)
6 Days ago
Next Level Business Services - Splunk Developer

Next Level Business Services

San Diego, California, United States (On-Site)
7 Months ago
Meta - Software Engineering Manager, Product Infrastructure

Meta

New York, New York, United States (Remote)
6 Months ago
Western Digital - Intern - Communication Assistant

Western Digital

Phra Nakhon Si Ayutthaya, Thailand (On-Site)
1 Month ago
ByteDance - Site Reliability Engineer - Network Automation - 2025 start

ByteDance

Singapore (On-Site)
4 Months ago
PassiveLogic - Senior Software Verification Engineer

PassiveLogic

Holladay, Utah, United States (On-Site)
2 Weeks ago
ByteDance - Software Engineer Graduate (Multi Cloud CDN) - 2025 Start (BS/MS)

ByteDance

Seattle, Washington, United States (On-Site)
6 Months ago

Get notifed when new similar jobs are uploaded

Jobs in London, England, United Kingdom

Flix Interactive - Senior UI Artist

Flix Interactive

Birmingham, England, United Kingdom (Remote)
2 Weeks ago
Google - Senior Research Engineer, AI/ML

Google

London, England, United Kingdom (On-Site)
3 Weeks ago
Bally's Interactive - Treasury Operations and Systems Manager

Bally's Interactive

Douglas, Scotland, United Kingdom (On-Site)
3 Months ago
Thales - Cloud DevOps Engineer

Thales

Reading, England, United Kingdom (Hybrid)
1 Week ago
Sail Point - Digital Sales Representative

Sail Point

London, England, United Kingdom (Hybrid)
3 Weeks ago
London stock Exchange - Director, Data Science

London stock Exchange

London, England, United Kingdom (Hybrid)
2 Weeks ago
Rockstar Games - Tech Lead, Analytics Engineering

Rockstar Games

London, England, United Kingdom (On-Site)
6 Days ago
Octopus - Expressions of interest

Octopus

United Kingdom (Remote)
1 Month ago
Larian Studios - Creative Partnerships Developer

Larian Studios

Guildford, England, United Kingdom (On-Site)
1 Month ago
Milk VFX Studios - VFX Talent and Resource Manager

Milk VFX Studios

London, England, United Kingdom (Hybrid)
2 Weeks ago

Get notifed when new similar jobs are uploaded

Similar Category Jobs

Looks like we're out of matches

Set up an alert and we'll send you similar jobs the moment they appear!

About The Company

Jane Street is a quantitative trading firm with offices in New York, London, Hong Kong, Singapore, and Amsterdam. We are always recruiting top candidates and we invest heavily in teaching and training. The environment at Jane Street is open, informal, intellectual, and fun. People grow into long careers here because there are always new and interesting problems to solve, systems to build, and theories to test.



New York, United States (On-Site)

New York, United States (On-Site)

New York, United States (On-Site)

London, England, United Kingdom (On-Site)

London, England, United Kingdom (On-Site)

London, England, United Kingdom (On-Site)

Hong Kong (On-Site)

New York, United States (On-Site)

Hong Kong (On-Site)

New York, United States (On-Site)

View All Jobs

Get notified when new jobs are added by Jane Street

Level Up Your Career in Game Development!

Transform Your Passion into Profession with Our Comprehensive Courses for Aspiring Game Developers.

Job Common Plug