1,795,710open jobs
103,651companies
269,196added this week
Browse all
Salary
≈ $64k – $103k per year (Estimated)
Location
In office (London)
Seniority
Senior · 5+ years exp
Visa
Licensed UK visa sponsor

Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Oct 16, 2026. Jane Street scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Jane Street (Jane Street Capital) is a quantitative trading firm and liquidity provider specializing in automated market making, algorithmic execution, and high-frequency trading. Headquartered in New York, New York, the firm operates major regional hubs in London, Hong Kong, Singapore, and Amsterdam. Its core activities involve deploying proprietary quantitative research, machine learning models, and low-latency infrastructure to facilitate continuous trading across exchange-traded funds (ETFs), equities, options, fixed income, futures, and derivative products across more than 200 trading venues globally.

About the position

We are looking for an experienced Technical Operations Engineer to join our highly technical group responsible for operating and managing the critical infrastructure within the facilities of our London office. You will help manage the complex systems that support our trading floors, amenity spaces, food service areas and mission-critical environments. It will require hands-on involvement in system operations, maintenance, commissioning and optimisation to ensure 24/7 reliability.

We seek candidates with professional training or equivalent experience in building service engineering, with expertise in electrical, mechanical or building services. While comprehensive knowledge is valuable, we recognise that strengths may vary across disciplines. We encourage you to apply if you can demonstrate strong technical abilities, excellence in execution, sound judgement and a willingness to learn. Our collaborative environment supports professional growth, and we value those who can adapt, harness our firm's collective brainpower and take the lead.

Additional responsibilities of this role will include:

  • Ensuring mission-critical systems meet the demanding requirements of a high-performance trading environment
  • Contributing to continuous improvement initiatives while maintaining the highest standards of operational excellence
  • Leading diverse projects ranging from planned maintenance to system upgrades and emergency responses
  • Implementing innovative solutions and optimising building automation systems
  • Managing relationships with external vendors, contractors and consultants
  • Being part of an on-call rotation for nights and weekends to quickly respond to critical system emergencies

About you

  • Have 5+ years of experience in mission-critical facility operations (e.g., banking environments, trading floors, data centres, or similar 24/7 environments)
  • Proficient in building services, including plant infrastructure, HVAC, CRACs, UPSs, generators, fire prevention systems and building management systems
  • Have a strong technical aptitude with computer systems and a willingness to learn new software and control platforms in an IT-centric environment
  • Skilled in reviewing construction documents, testing/commissioning scripts and approving RAMs for critical scopes of work
  • Have a demonstrated ability to troubleshoot field issues independently and make well-reasoned engineering decisions to manage operational risks
  • Excellent written and verbal communicator; able to explain complex technical issues clearly to diverse audiences
  • Comfortable working with technical and non-technical colleagues across departments and business areas
  • Can prioritise tasks effectively and stay organised; can balance assigned work required for constantly evolving environments
  • Fluent in English

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

 

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,795,710 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Recommended for you based on this role

Industrial Engineering
Similar stack
Same company
London
≈ $50k – $88k per year (Estimated) • Remote (United Kingdom) • Full-Time • 5+ years exp • Reading • Oxford • High Wycombe
Apply
≈ $65k – $104k per year (Estimated) • In office • Full-Time • 5+ years exp • London
Apply
Supervisor 1 day ago
$77k per year • Hybrid • Full-Time • Bachelor's Degree • London
Apply
≈ $49k – $87k per year (Estimated) • In office • Full-Time • 1+ year exp • High School Diploma • York
Apply
$63k – $77k per year • In office • Full-Time • 1+ year exp • Santa Ana
Management
Microsoft Office
Apply
≈ $44k – $92k per year (Estimated) • In office • London
Management
Agile
Apply
Windows Engineer 19 days ago
≈ $43k – $89k per year (Estimated) • In office • Internship • London
PowerShell
C#
OCaml
F#
C#
.NET
AI/ML
Prompt Engineering
DevOps
CI/CD
Windows
Apply
≈ $45k – $94k per year (Estimated) • In office • London
Apply
≈ $63k – $101k per year (Estimated) • In office • 7+ years exp • London
Python
PowerShell
Apply
Strategy and Product 19 days ago
≈ $45k – $94k per year (Estimated) • In office • London
Apply
≈ $44k – $71k per year (Estimated) • In office • 2+ years exp • London
Apply
≈ $27k – $59k per year (Estimated) • In office • Internship • 1+ year exp • London
Apply
≈ $27k – $59k per year (Estimated) • In office • Internship • London
Apply
Multi Skilled Engineer 11 hours ago
≈ $42k – $91k per year (Estimated) • In office • London
Apply
Gaming Supervisor 12 hours ago
≈ $45k – $94k per year (Estimated) • In office • Bachelor's Degree • London
Apply
See all jobs
This is one of many
1,795,710 more open roles from verified company boards, updated every day.