Summary: The HV Power SCADA TRI (Control Systems Technician) role at Transport for London involves maintaining and repairing control systems for the London Underground's power network. The position requires collaboration with a team to ensure the safe operation of high voltage power systems, including installation and commissioning of new equipment. The role is based in Covent Garden, London, and follows a fixed shift pattern. Candidates must possess relevant technical skills and experience in electrical control systems.
Key Responsibilities:
- Manage and undertake the maintenance, repair, and operation of all London Underground Control Systems assets.
- Responsible for control system devices, plant control schemes, and measuring devices on site.
- Assist in the upgrade and commissioning of control systems equipment and intelligent devices.
- Conduct acceptance testing of new and transposed equipment, decommissioning, modification, and additions to existing systems.
- Maintain and test communication network assets such as switches, Fibre transceivers, modems, and pilot wire.
- Check and update schematic drawings/schedules pertaining to control systems equipment.
- Fault find on control systems equipment, including interrogation and analysis of fault logs.
- Prepare reports detailing corrective actions taken and necessary recommendations.
- Install and use specialised monitoring equipment for fault investigations and power quality studies.
- Ensure all documentation associated with tasks is completed to a defined satisfactory standard.
- Isolate and make safe low voltage electrical equipment for work purposes.
Key Skills:
- Safety Critical Certified (Training Provided) (Essential)
- PC Literate (Essential)
- Full UK Driving Licence (Essential)
- Flexible approach to work, self-reliant (Essential)
- Ability to interpret, understand and apply technical drawings/IO schedules (Essential)
- Good communication & report writing skills (Essential)
- Ability to plan, organise and prioritise work to meet specified deadlines and targets under pressure (Essential)
- Ability to supervise and work in a team (Essential)
- Perform routine preventative maintenance on RTU equipment and plant interfaces (Essential)
- Demonstrate sound fault-finding abilities within control system environments (Essential)
- Holder of London Underground LV1 License (Desirable)
- Understanding of communication protocols used in substation automation (Desirable)
- Knowledge HND in Electrical/Electronic Engineering or Equivalent (Essential)
- Knowledge of RTU/PLC systems their connectivity and plant connections (Essential)
- Ability to read and interpret electrical schematics, process and Instrumentation Diagrams (P&IDs), and wiring diagrams (Essential)
- Use of test equipment such as multimeters, oscilloscopes, and clamp meters (Essential)
- Working knowledge of MS Office packages (Essential)
- Knowledge of networking and network components (Desirable)
- Fibre optic inspection & test (Desirable)
- Experience of maintenance, fault finding and repair of control system equipment (Essential)
- Read electrical schematic diagrams, schedules (Essential)
- Maintenance of pilot wire and modem communications systems (Desirable)
- Experience of working on network equipment, including routers, hubs, and network switches (Desirable)
- Experience working with copper and fibre optic communications mediums on an industrial level (Desirable)
Salary (Rate): £69,148 yearly
City: London
Country: United Kingdom
Working Arrangements: undetermined
IR35 Status: undetermined
Seniority Level: undetermined
Industry: Other
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Key Information
Job title: HV Power SCADA TRI (Control Systems Technician)
Salary: £69,148
Grade P6A1
Contract type: London Underground - Permanent
Location: Covent Garden, London with expectation to travel across LU network
Shifts: This role works a FIXED SHIFT PATTERN: 2 weeks of day shifts, followed by 1 week of night shifts. Hours for nights 2300-0700 Sunday to Thursday and Hours for days 0800-1600 Monday to Friday.
Application closing date: Sunday 15th February 2026 @ 23:59
Overview Of Project/role
London Underground is one of the world’s most famous metro systems and is responsible for more than 5 million passenger journeys a day. It has 11 lines covering 402km and serving 272 stations. During peak hours, more than 500 trains are in operation. Our HV Power section are looking for experienced Electrical Control Technicians to fill the position of Test Room Inspector (TRI) Reporting to the Control Systems Engineer, TRI’s are responsible for ensuring that the HV Power SCADA control system is available for the safe operation of the London Underground power network. Activities will involve maintenance and repair of current systems as well as assisting with installation and commissioning of new equipment. You will be expected to comply with all relevant industry standards and legislation, ensuring that all activities carried out are within a safe system of work This role requires effective, collaborative work as part of the wider team involved in the maintenance, operating, servicing and repair of power distribution equipment
Key Accountabilities
- Manage and undertake the maintenance, repair, and operation of all London Underground Control Systems assets, intelligent devices and auxiliary controls
- Responsibility for control system devices, plant control schemes and measuring devices on site, including electronic and microprocessor-based instruments
- Understanding of a wide range of industrial communication protocols, including IEC61850 and IEC60870
- Assist in the upgrade and commissioning of control systems equipment and intelligent devices
- Acceptance testing of new and transposed equipment, decommissioning, modification, and additions to existing systems
- Maintenance and testing of communication network assets such as switches, Fibre transceivers, modems and pilot wire.
- Checking and updating of schematic drawings/schedules pertaining to control systems equipment and intelligent devices
- Fault finding on control systems equipment, including the interrogation, retrieval, and analysis of fault logs
- Prepare reports detailing the corrective action taken and necessary recommendations
- The installation and use of specialised monitoring equipment for the purposes of fault investigations, power quality, harmonic studies to assist LU as required
- To ensure all documentation associated with tasks is completed to a defined satisfactory standard
- Isolating and making safe of low voltage electrical equipment for the purpose of carrying out work
Skills
Skills, Knowledge & Experience
- Safety Critical Certified (Training Provided) (Essential)
- PC Literate (Essential)
- Full UK Driving Licence (Essential)
- Flexible approach to work, self-reliant (Essential)
- Ability to interpret, understand and apply technical drawings/IO schedules (Essential)
- Good communication & report writing skills (Essential)
- Ability to plan, organise and prioritise work to meet specified deadlines and targets under pressure (Essential)
- Ability to supervise and work in a team (Essential)
- Perform routine preventative maintenance on RTU equipment and plant interfaces (Essential)
- Demonstrate sound fault-finding abilities within control system environments (Essential)
- Holder of London Underground LV1 License (Desirable)
- Understanding of communication protocols used in substation automation (Desirable)
- Knowledge HND in Electrical/Electronic Engineering or Equivalent (Essential)
- Knowledge of RTU/PLC systems their connectivity and plant connections (Essential)
- Ability to read and interpret electrical schematics, process and Instrumentation Diagrams (P&IDs), and wiring diagrams (Essential)
- Use of test equipment such as multimeters, oscilloscopes, and clamp meters (Essential)
- Working knowledge of MS Office packages e.g., Outlook, Word, Excel, and PowerPoint (Essential)
- Knowledge of networking and network components (Desirable)
- Fibre optic inspection & test (Desirable)
- Experience of maintenance, fault finding and repair of control system equipment (Essential)
- Read electrical schematic diagrams, schedules. (Essential)
- Maintenance of pilot wire and modem communications systems (Desirable)
- Experience of working on network equipment, including (but not limited to) routers, hubs, and network switches and their configurations. (Desirable)
- Experience working with copper and fibre optic communications mediums on an industrial level (Desirable)
This is a safety critical role so you will need to get clearance from our Occupational Health team before you start.
Equality, diversity and inclusion
We are committed to equality, diversity and inclusion. We want to represent the city we serve, which will help us become a more innovative and efficient organisation. Our goal is to make our recruitment as inclusive as possible. We are a disability confident employer who guarantee an interview to any disabled candidate who meets all of the essential criteria. We also use anonymising software that removes identifying information from CVs and cover letters to make the process fair.
Application Process
Please apply using your CV & covering letter. PDF format preferred and do not include any photographs or images. Think carefully about the skills, knowledge and experience in the advert and cover this in your CV & covering letter. If you are successful shortlisted, you will be invited to an interview which will involve the following: An on-site practical skills assessment Competency based interview focusing on TfL competencies and values Technical questions
Benefits
In return for your commitment and expertise, you will enjoy excellent benefits and scope to grow. Rewards vary according to the level of role but mostly include the below:
- Final salary pension scheme
- Free travel for you on the TfL network
- Reimbursement of 75% of the cost of a standard class Ticket for National Rail travel from home or 75% reimbursement on a 28-day flexi ticket
- 29 days annual leave plus public and bank holidays
- TfL is committed to work-life balance, operating a hybrid working approach where business and role requirements allow
- Healthcare discounted scheme (optional)
- Tax-efficient cycle-to-work programme
- Retail, health, leisure and travel offers
- Discounted Eurostar Travel
