Jane Street

Jane Street

Posted via Greenhouse

Production Engineer

Posted Sep 3, 2026

Role at a glance

Salary
Not Disclosed
Location
London, England, United Kingdom
Employment
Full-time

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Role Summary

AI-generated

Production Engineers develop software and provide support for systems critical to Jane Street’s trading business. They work on OCaml development projects and participate in a support rotation to resolve live issues.

What You'll Do

  • Develop software, including project work in OCaml.
  • Participate in a support rotation and resolve live issues in critical systems.
  • Take ownership of the architecture and design of systems that monitor and support the firm’s trading.
  • Design and develop tools used to support the firm.

Generated from the employer's posting. Verify important details before applying.

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Qualifications

Strong programming skills, including the ability to write and read code well; love of technology; intellectual curiosity, motivation, collaboration, and eagerness to learn; excellent communication skills and the ability to remain clear and calm during production incidents. Fluency in English is required.

Required

  • A strong programmer with a love for technology; able to write and read code well
  • An intellectually curious person who is motivated, collaborative, and eager to learn
  • An excellent communicator, able to be clear and calm during production incidents
  • Fluency in English required

Original job description

Content provided by the employer

About the Position

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. 

How is a Production Engineer role different from a generic Software Engineering role?

As Production Engineers:

  • We split our time between OCaml software development project work and a support rotation, in which we actively resolve live issues in Jane Street’s critical systems
  • We are curious and eager to learn about a number of different systems and how they fit together. This gives us a breadth of knowledge and opportunities to collaborate with many other dev and business teams across the firm
  • We spend less time in total coding (due to the support rotation), and are interrupted more often, and we enjoy adding value to Jane Street in this way
  • We get satisfaction from helping others, enabling good trades, and getting to the bottom of complex and urgent production issues

About You

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:

  • A strong programmer with a love for technology; able to write and read code well
  • An intellectually curious person who is motivated, collaborative, and eager to learn
  • An excellent communicator, able to be clear and calm during production incidents
  • Fluency in English required

 

If you're a recruiting agency and want to partner with us, please reach out to [email protected].

Jane Street

About the company

Jane Street

Large Enterprise

Jane Street is a global trading firm that specializes in quantitative and algorithmic trading across various asset classes, including equities, options, and fixed income. Founded in 2000, the company leverages advanced technology and data analytics to drive its trading strategies while maintaining a strong commitment to risk management and collaboration. Known for its dynamic and intellectually stimulating work environment, Jane Street also places a high value on continuous learning and professional development, making it an attractive workplace for individuals interested in finance, mathematics, and computer science.