Janestreet Jobs

38 open positions at Janestreet

Browse all 38 open positions at Janestreet. Every listing includes structured data: tech stack, language requirements, remote policy, and salary.

By the numbers

  • Mostly Junior roles
  • Often paired with Linux, Python, Machine Learning, OCaml
  • Top locations: London
  • 100% don't require German
  • 1 new in the last 7 days

Working at Janestreet

Most-requested tech

Remote policy

42%

On-site 42%

0 of 38 live ads state a salary.

1 roles posted in the last 30 days, 6 in the last 90.

Languages required

  • English 38
Janestreet 7 months ago Open for 231+ days
On-site

Infrastructure Security Engineer

London, United Kingdom - English (Fluent)

Python PowerShell Windows Active Directory EntraID +2
Janestreet 7 months ago Open for 231+ days Reposted 30 time(s)
On-site

Quantitative Researcher

London, United Kingdom - English (fluent)

Python
Janestreet 7 months ago Open for 231+ days

Senior Network Engineer

London, United Kingdom - English (fluent)

OSPF BGP PIM-SM TCP UDP +1
Janestreet 7 months ago Open for 231+ days

Linux Engineering Manager

London, United Kingdom - English (Fluent)

Linux Shell scripting
Janestreet 7 months ago Open for 231+ days

Data Engineer

London, United Kingdom - English

SQL
Janestreet 7 months ago Open for 231+ days Reposted 29 time(s)

Tools & Compilers Research and Development

London, United Kingdom - English

Janestreet 7 months ago Open for 231+ days

Machine Learning Performance Engineer

London, United Kingdom - English (fluent)

Machine Learning PTX Sass Triton CUTLASS +12
Janestreet 7 months ago Open for 231+ days

Windows Engineer

London, United Kingdom - English (fluent)

Windows 10 Windows 11 Windows Server PowerShell Python +5
Janestreet 7 months ago Open for 231+ days

Network Security Engineer

London, United Kingdom - English (Fluent)

OSPF BGP PIM-SM TCP UDP +1
Janestreet 7 months ago Open for 231+ days

Machine Learning Research Engineer

London, United Kingdom - English (fluent)

PyTorch
Janestreet 7 months ago Open for 231+ days Reposted 30 time(s)
On-site

Network Analyst

London, United Kingdom - English (Fluent)

Linux TCP UDP
Janestreet 7 months ago Open for 231+ days

Programming Language Engineer

London, United Kingdom - English

Janestreet 7 months ago Open for 231+ days
On-site

Linux Engineer

London, United Kingdom - English

Linux C Bash GDB perf +3
Janestreet 7 months ago Open for 231+ days

Front End Software Engineer

London, United Kingdom - English (fluent)

Janestreet 7 months ago Open for 231+ days Reposted 30 time(s)
On-site

OxCaml Educator

London, United Kingdom - English

OxCaml OCaml
Janestreet 7 months ago Open for 231+ days
On-site

Cybersecurity Engineer - Threat Modelling

London, United Kingdom - English

Linux
Janestreet 7 months ago Open for 231+ days

Software Engineer

London, United Kingdom - English (Fluent)

Janestreet 7 months ago Open for 231+ days
On-site

Machine Learning Researcher

London, United Kingdom - English

Machine Learning Python

Frequently Asked Questions

How many open positions does Janestreet have?
Janestreet currently has 38 open tech positions listed on Jobdex. This updates daily as new roles are posted or filled.
What tech stack does Janestreet use?
The tech stack varies by role. Each job listing shows the specific technologies required and nice-to-have.
Does Janestreet offer remote work?
Remote policy varies by position. Each listing includes the exact remote policy. Check individual roles to see if they offer remote, hybrid, or on-site work.