high voltage jobs in Cardiff

Mechanical Fitter – High Voltage Projects (UK travel) Permanent | OTE up to £60k + profit share We’re working with a well-established, 100% employee-owned Tier 1 high-voltage contractor that’s busy and growing fast. They need an experienced Mechanical Fitter to join their HV installation teams on major substation, renewable and grid projects up to 132 kV. What you’ll actually be doing -...

You will be joining a team with a strong forward workload / order book stretching into the middle of next year.

You will be growing a growing team with lots of medium term opportunities for career progression.

You will work closely with likeminded individuals on exciting and challenging projects.

You will manage and grow a portfolio of well-established clients across the UK and Ireland — including consultancies, ICPs, DNO/TNO contractors, cable manufacturers, testing specialists, EPCs and HV service providers. This is not a cold-calling sales role; success is built on technical credibility, relationship management, and strategic account growth.

You will be responsible for the safe operation, switching, and maintenance of high-voltage networks, ensuring compliance with all relevant safety rules and regulations. Key Responsibilities: - Carry out HV switching operations up to 33kV under safety rules. - Issue and cancel safety documents (e.g., permits to work, isolation certificates).

Position Summary: The Commissioning Technician is an integral part of the commissioning team, with their main responsibility being to work with and support the commissioning engineer and their manager in the successful commissioning of our BESS projects. The successful candidate must be able and willing to travel and complete tasks at various project sites nation wide. Responsibilities: - Play...

Overhead Linesman (132kV–400kV Transmission Lines) Job Title: Overhead Cable Linesman (132kV–400kV Transmission Lines) Location: South England Contract duration: 3 months (May – August 2026) Salary: £350 – £400 per day About the role: We are seeking an experienced Overhead Linesman to support a refurbishment project on existing 132kV–400kV high voltage transmission lines across South...

You will support our High Voltage Products Market Manager and Tendering Manager in the implementation of the sales and marketing strategies and oversee allocated sales and tendering activities to drive sales and increase market share.

Planning Manager – SubstationsLocation: South West / South WalesSector: Energy Infrastructure, Transmission and RenewablesEmployment Type: Full-Time, PermanentSalary: £75,000–£90,000 per annum, plus car allowance and discretionary bonusAbout the CompanyOur client is a leading provider of essential infrastructure services across the UK energy sector. Operating across electricity transmission and...

Are you a skilled engineer with deep expertise in high-voltage earthing design? Looking for a role where you can lead technically demanding projects, mentor junior engineers, and take full ownership from concept to commissioning?We're working with a major UK infrastructure specialist who is looking for an experienced Senior Design Engineer to join their growing team in Cardiff. This is an...

With the UK government’s ambitious goal of delivering 60GW of solar power by 2030, Solar Careers UK are on a mission to help recruit, train, and place over 43,000 new professionals into rewarding careers within the solar and battery storage industry. Solar Careers UK is a division of Solar Energy UK, the trade association representing over 425 solar businesses across the country. Many of these...

You will take part in any training as required to allow you to complete your job.

You will be available to visit customers sites as required and will be responsible to follow the customers health and safety requirements as required.

You will ensure that company vehicles are clean and presentable at all times.

M&E Site Supervisor – SubstationsLocation: South Wales / South West EnglandContract Type: PermanentSalary: £50,000 – £60,000 per annum + Company vehicle and fuel card for business useRole OverviewWe are seeking an experienced M&E Site Supervisor to oversee mechanical and electrical works on high-voltage substation projects across South Wales and South West England.In this role, you will supervise...

Lead Cable Hand – Glasgow (UK travel) Permanent | £55k total package (basic + regular overtime + travel time) We’re working with a well-established, 100% employee-owned, Tier 1 high-voltage contractor that’s busy and growing fast. They need a solid, hands-on Lead Cable Hand to run cabling squads on big substation, renewable and grid projects (11 kV – 132 kV). What you’ll actually be doing -...

You will oversee tenders, live projects, and commercial teams, ensuring strong governance, risk management, and financial performance. Key Responsibilities:Do you have experience in a similar level role, balancing a portfolio of multiple projects? As a Commercial Manager, you’ll take responsibility for the strategy and execution of the commercial function on all tenders and projects in the region.