HV Power Plant Fitter
Transport for LondonLondon
Overview
This is a public transport role with Transport for London based in London. Applications close on 8 September 2026. GovJobs has indexed this vacancy from its official source — use the apply button to view the full advert and apply directly.
Job description
itemprop="description" class="jobdescription">Welcome to Transport for London Careers
Take a look at job opportunities with us and you may be surprised at what you discover: a rich heritage, a commercial outlook, an iconic brand, a unique public service. It all adds up to make Transport for London a great place to develop your career. Here you can start your journey!
Key Information
Job title – HV Power Plant Fitter
Grade – P3A1
Salary- £66,370.00
Location – Tufnell Park HV Power Depot
Contract Type – Permanent- London Underground.
Overview of project/role
This role is responsible for undertaking maintenance, servicing, breakdown and fault repair of all Substation plant and equipment across the whole of London Underground's HV Power Distribution Network.
To ensure that the assets are maintained in accordance with set specifications to meet safety and operational criteria in order to provide an efficient and continuous power supplies to the London Underground railway system.
The HV Power Plant Fitter role is an equal split of electrical and mechanical disciplines.
Key Accountabilities
- Maintain, service, repair, disassemble & re-build and re-calibrate all substation plant, including High Voltage, Low Voltage and DC switchgear, Signalling systems, Frequency Changers, batteries & chargers, Rectifiers, Transformers, rotating plant, Power Quality equipment including SVCs and Harmonic filters, Off Line Battery Inverters (OLBI) and all other substation equipment.
- Diagnose and eliminate electrical and mechanical faults on all substation plant, wiring and control.
- Use and apply the content of technical documents, manuals, diagrams, drawings to plant and systems.
- To act as Site Person in Charge (SPIC} as required for both HV Power and 3rd party works.
- To declare substation plant fit/ unfit for service. Follow the instructions of others when switching plant equipment on or off.
- Undertake advanced condition monitoring techniques, thermal imaging, trip profiling, DC DAOL testing, Ductoring, IR testing etc.
- Undertake lifting, slinging and rigging lifting operation of heavy plant & equipment.
- To prepare and submit reports on faults and plant breakdowns attended.
- The job holder is required to drive company vehicles, clean them and carry out vehicle checks as required.
Skills, Knowledge & Experience
- Fitters are required to demonstrate both mechanical skills as well as a sound knowledge of batteries and chargers, standby power supplies, three phase ac electrical supplies, transformer principles, AC & DC switchgear operation and the fundamentals of circuit protection and earthing arrangements.
- During the probationary period there will be a Low Voltage Assessment.
- The assessment will be by written exam in the classroom and on site (practical safety critical assessment). The job holder will be required to renew their license every three years by means of reassessment, this process will in turn be supported by HV Power's competency and capability policies.
- Completed an indentured or modern apprenticeship in Power, Electrical or Mechanical roles.
- Have an Electrical, Mechanical or Power Engineering technical qualification or equivalent.
- Be proficient in the use of electrical test equipment used to determine the condition of plant & equipment
- Have relevant electrical or mechanical experience (fitting skills}
- The ability to understand technical drawings
- Have a full clean driving licence.
- Sound electrical knowledge of DC battery supplies, three phase AC electrical supplies, transformer principles, the fundamentals of circuit protection and earthing arrangements is desired.
- Position holders must have completed an indentured or modern apprenticeship in Power, Electrical or Mechanical role. Time served in a Power, Electrical or Mechanical environment would be a requirement
Application Process
- Please apply using your CV only
- Think carefully about the skills, knowledge and experience in the advert and cover this in your CV
- PDF format preferred and do not include any photographs or images
The closing date for applications is Tuesday 8th September at 11:59PM. We may close this advert early if we receive a high volume of suitable applications.
All offers of employment are subject to satisfactory right‑to‑work checks. Candidates must be able to demonstrate their right to work in the UK. At the present time TfL is unable to offer visa sponsorship for this role.
Please note this job is Safety Critical, and successful candidate would be subject to pre-employment drugs and alcohol test and ongoing random testing in compliance with LU Standards.
Vetting Process
At Transport for London, safety, trust and fairness sit at the heart of how we recruit. Our Vetting Charter (https://tfl.gov.uk/corporate/careers/our-vetting-process) explains the checks we carry out before you join us, helping ensure we create a safe, inclusive and reliable network for everyone who depends on our services. We simply ask that the information you provide is honest and accurate so we can progress your application smoothly. If something doesn’t match or can’t be verified, we may not be able to move forward with your application, but we’ll always treat you with transparency, respect, and clear communication throughout.
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.
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
Private healthcare discounted scheme (optional)
Tax-efficient cycle-to-work programme
Retail, health, leisure and travel offers
Discounted Eurostar travel
We will make every effort to give you as much notice as possible, however some interviews/assessments could be organised at short notice.
How this role compares
There are 85 rail & transport roles open across the UK on GovJobs right now, 39 of them in London.
You have 9 days left to apply. Rail & transport adverts we hold typically run for around 19 days, so this is a shorter window than usual.
Transport for London has 30 other vacancies open on GovJobs, with a breakdown of what they pay and the kinds of roles they recruit for.
These figures are calculated from the vacancies GovJobs currently holds, not from official pay statistics. They are a guide to the market, not a valuation of this post.
How to apply
GovJobs does not take applications or send your details to the employer. Use the apply button to open the official Tfl advert, then check the employer's instructions, attachments, person specification and closing time before applying.
This listing was last checked on 28 Aug 2026, 15:06. If the official advert has changed or closed, report it and we will review the listing.
Why this listing is on GovJobs
GovJobs indexes public-sector vacancies from official sources, normalises the title, employer, location, salary and deadline, and links back to the source so you can verify the advert yourself.
The source for this role is Tfl. Applications stay on the official employer or source website, not on GovJobs.