Jane Street Logo

Jane Street

Software Engineer

Reposted 23 Days Ago
In-Office
London, Greater London, England, GBR
Entry level
In-Office
London, Greater London, England, GBR
Entry level
Software Engineers at Jane Street engage in collaborative technology-driven work, using functional programming with OCaml and Python for various business problems.
The summary above was generated by AI
About the Position

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.

About You
  • Top-notch programming skills
  • Deep experience with—and love for—technology. There's no specific checklist; we use software to approach a variety of problems, so we're interested in everything from machine learning to systems administration to programming language design
  • Strong interpersonal skills. Software engineering at Jane Street is highly collaborative, and we are looking for people who can work effectively in small, close-knit teams
  • We don’t expect you to have experience with functional programming, OCaml, Python, or finance; we’re happy to hire talented engineers and teach them what they need to know.
  • Fluency in English required

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 [email protected].

Jane Street London, England Office

2 & A Half, Devonshire Square, London, United Kingdom, EC2M 4UJ

Similar Jobs

Yesterday
Hybrid
Mid level
Mid level
Financial Services
Design, develop, test, deploy, and support secure, high-performance SWIFT/CLS messaging and API applications. Configure SWIFT products, automate CI/CD, analyze data for improvements, and use enterprise AI-assisted tools while ensuring resiliency, security, and cross-functional collaboration.
Top Skills: AWSCi/CdClsCore JavaEnterprise Ai-Assisted Development ToolsHigh Availability Cluster TechnologiesMq MiddlewarePl/SqlPythonShell ScriptingSwift Alliance AccessSwift Alliance GatewaySwift Domestic Messaging ChannelSwift Web PlatformTerraformUnixXML
Yesterday
Hybrid
Senior level
Senior level
Financial Services
Design, implement, and maintain reliable, scalable systems and automation for deployments, monitoring, and operations. Troubleshoot production incidents, implement infrastructure/configuration as code, use SLOs/SLIs to prevent customer impact, and collaborate with development teams while documenting processes and sharing knowledge.
Top Skills: .NetAWSAzureCi/CdCloudFormationDatadogDockerDynatraceEcsGCPGitlabGrafanaJavaJenkinsKubernetesLinuxPrometheusPythonSplunkSpring BootTerraformUnix
Yesterday
Hybrid
Mid level
Mid level
Digital Media • Gaming • Software • Esports • Automation
Design, develop and maintain full-stack business systems using .Net, React, SQL and Python. Diagnose production issues, implement scalable solutions, embed AI tools to accelerate delivery, produce technical documentation, run QA reviews, and communicate solutions to stakeholders while managing multiple projects.
Top Skills: .NetAIPythonReactSQL

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account