Technical Operations Engineer

Jane Street; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

Jane Street in London seeks an experienced Technical Operations Engineer to join our highly technical team responsible for operating and managing core infrastructure within our trading floors and support spaces. You will be hands-on with system operations, maintenance, commissioning and optimisation to ensure 24/7 reliability.

You will work on building services, electrical and mechanical systems, and collaborate across teams in a fast-paced IT-centric trading environment.

Qualifications

• 5+ years of experience in mission-critical facility operations.
• Proficient in building services, including plant infrastructure, HVAC, CRACs, UPSs, generators, fire prevention systems and building management systems.
• Strong technical aptitude with computer systems and willingness to learn new software and control platforms in an IT-centric environment.
• Skilled in reviewing construction documents, testing/commissioning scripts and RAMs for critical scopes of work.
• Demonstrated ability to troubleshoot field issues independently and manage operational risks.
• Excellent written and verbal communication; able to explain complex technical issues clearly.
• Comfortable working with technical and non-technical colleagues across departments.
• Ability to prioritise tasks in evolving environments.

Responsibilities

• Ensure mission-critical systems meet the demanding requirements of a high-performance trading environment.
• Contribute to continuous improvement initiatives while maintaining the highest standards of operational excellence.
• Lead diverse projects from planned maintenance to system upgrades and emergency responses.
• Implement innovative solutions and optimise building automation systems.
• Manage relationships with external vendors, contractors, and consultants.
• Be part of an on-call rotation for nights and weekends to respond to critical emergencies.

Skills

Mission-critical ops

Building services

HVAC/CRACs/UPS

IT systems

RAMs/testing scripts

Vendor management

On-call support

Strong communicator

Job description

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