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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!
Job title – Power Delivery Substation Tester
Grade – P3A1
Salary- £67,370.00- £70,428.00
Location – Tufnell Park, N19 (prepared to travel all over the London Underground
system and its supply distribution network)
Contract Type – -Permanent- London Underground
Shift Pattern: 2 weeks of days and 1 week of nights on rotation. There is an option once qualified to move to shift work with a salary uplift to reflect.
London Underground would like to offer you the opportunity to join our inclusive and diverse workforce; proudly reflecting the city that we serve.
London Underground has the largest private electrical distribution network in the country requiring multi-disciplined technical staff to maintain the infrastructure. We have an opportunity in the field of Power Distribution for a Substation Tester.
You will be responsible for undertaking, servicing and first-line fault attendance and repair of all plant and equipment under the control of Power Delivery.
You will ensure that the assets are serviced in accordance with set specifications to meet safety and operational criteria in order to provide an efficient and continuous power supply to the London Underground railway system.
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.
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.
We are committed to equality, diversity and inclusion and aim to reflect the diverse communities we serve. We believe that a diverse workforce enables us to deliver better services and outcomes. Our goal is to make our recruitment as inclusive as possible. As a Disability Confident Leader, we actively encourage applications from disabled people. As part of the Disability Confident scheme, we aim to offer an assessment or interview to candidates who apply via the scheme where the minimum essential criteria for skills, knowledge and experience has been met. In some circumstances, it may not be practical to offer an interview or assessment to every candidate who applies through the scheme and meet the minimum essential criteria; in these situations, we select candidates who best meet the minimum criteria for the job rather than interviewing all who meet them.
Across all recruitment activity, we recognise that selection methods may vary depending on the nature and scale of the campaign and will be applied fairly, consistently and proportionately in line with our Disability Confident commitments.
We also use anonymising software that removes identifying information from CVs and cover letters to make the process fair.
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
30 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
Hybrid working within this role enables a balance of 50 per cent of time split between the office and home over a 4 week period. Hybrid working arrangements can evolve subject to business requirements.
We will make every effort to give you as much notice as possible, however some interviews/assessments could be organised at short notice.

Every day, we help millions of people to make journeys across London: By Tube, bus, tram, car, bike – and more. People don’t associate us with journeys by river, on foot or via the air, but we help with that, too. Getting people to where they need to go has been our business for over 100 years, and it shows. We’re leaders in our field, and no other city’s transport system is quite as recognisable: Red buses, black taxis, Tube trains and roundels have become icons in their own right.
Our main job is to keep the city moving, working and growing but to do that, we have to listen. Constant improvements across the network are fuelled by feedback and comments from customers, as well as work within communities, representative groups, businesses and other London transport stakeholders.
But our progress also depends on technology and data. With the future at our fingertips, we’ve already used it to revolutionise travel payments (think Oyster and contactless payment cards), and improved travel information. Tech and data is essential, not just to our future, but to others’: third parties use our data to power apps and services vital to customer journeys.
So what’s next? As well as continuing to deliver Mayor of London, Sadiq Khan’s strategy and commitments on transport, our programme of capital investments is still one of the largest. We launched the Elizabeth line, we’re modernising services and stations and making travel safer for all.