Janestreet Jobs

30 open positions at Janestreet

Browse all 30 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, PowerShell
  • Top locations: London
  • 100% don't require German

Working at Janestreet

Most-requested tech

Remote policy

37%

On-site 37%

0 of 30 live ads state a salary.

1 roles posted in the last 30 days, 13 in the last 90.

Languages required

  • English 30
Janestreet 1 week ago
On-site

Cybersecurity Engineer: Security Operations Center (SOC)

London, United Kingdom - English (Fluent)

Janestreet 1 month ago
On-site

Windows Engineer

London, United Kingdom - English (fluent)

C# F#
Janestreet 1 month ago

Machine Learning Researcher

London, United Kingdom - English (fluent)

Python Machine Learning
Janestreet 1 month ago
On-site

Unified Communications Engineer

London, United Kingdom - English (Fluent)

Cisco Unified Communications Manager Cisco Meeting Server Cisco Expressway SIP Python +4
Janestreet 2 months ago

Software Engineer

London, United Kingdom - English (Fluent)

Janestreet 2 months ago
On-site

Linux Engineer

London, United Kingdom - English (fluent)

Linux
Janestreet 2 months ago

Hardware Engineer (FPGA/ASIC)

London, United Kingdom - English (Fluent)

OCaml Hardcaml Verilog C VHDL +6
Janestreet 2 months ago

Linux Engineer

London, United Kingdom - English (fluent)

Linux Nix RPM
Janestreet 2 months ago

Hardware Engineer (FPGA/ASIC)

London, United Kingdom - English (Fluent)

VHDL Verilog Chisel Pymtl Vivado +3
Janestreet 2 months ago

Machine Learning Engineer

London, United Kingdom - English (fluent)

Machine Learning H100 H200 B200
Janestreet 2 months ago

Software Engineer

London, United Kingdom - English (fluent)

OCaml
Janestreet 3 months ago Open for 105+ days

Compiler Engineer

London, United Kingdom - English

LLDB GDB Linux
Janestreet 3 months ago Open for 115+ days

Formal Methods Engineer

London, United Kingdom - English

Janestreet 4 months ago Open for 127+ days Reposted 7 time(s)
On-site

Machine Learning Researcher

London, United Kingdom - English (Fluency)

Machine Learning Python LLM Image Models Reinforcement Learning +2
Janestreet 5 months ago Open for 171+ days
On-site

Cybersecurity Engineer

London, United Kingdom - English (Fluent)

Janestreet 6 months ago Open for 191+ days
On-site

ASIC Engineer

London, United Kingdom - English (C1)

RTL ASIC FPGA Synopsys Cadence
Janestreet 6 months ago Open for 205+ days

Software Engineer

London, United Kingdom - English (Fluent)

Janestreet 6 months ago Open for 205+ days
On-site

Infrastructure Security Engineer

London, United Kingdom - English (Fluent)

Python PowerShell Windows Active Directory EntraID +2
Janestreet 6 months ago Open for 205+ days

Network Security Engineer

London, United Kingdom - English (Fluent)

OSPF BGP PIM-SM TCP UDP +1
Janestreet 6 months ago Open for 205+ days

Linux Engineering Manager

London, United Kingdom - English (Fluent)

Linux Shell scripting

Frequently Asked Questions

How many open positions does Janestreet have?
Janestreet currently has 30 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.