Generator Field Service Engineer

Thames Water; Greater London; On-site; GBP 44,000 - 65,000; Full time

Benefits offered by this job

Van provided on duty

PPE and tools supplied

31 days leave incl. bank holidays

Pension scheme

Cycle to work

Life assurance

Job summary

Thames Water is seeking a Generator Field Service Engineer to maintain, diagnose, repair and optimise CHP biogas engines across multiple Thames Valley and London sites.

You will operate engine controls (ComAp, DIA.NE, TEM Evo), perform planned and unplanned maintenance, and work with suppliers to minimise downtime while staying within budget. A full UK driving licence is required.

Qualifications

• Proven hands-on experience with internal combustion engines and systems.
• NVQ/C&G or engine maker qual in mechanical eng is preferred.
• Electrical qualification is advantageous but not essential.

Responsibilities

• Carry out planned and unplanned maintenance of CHP Spark Ignition generators within a region.
• Collaborate with CHP support staff and suppliers to ensure safe work within budget and minimal downtime.
• Complete service records and reports accurately and on time.
• Identify required parts, lubricants and waste for orders.
• Maintain a zero‑compromise attitude to health, safety and wellbeing.
• Deliver excellent customer service and support team knowledge from training.

Skills

Hands-on engine maintenance

Diagnostics & troubleshooting

Engine/generator controls (ComAp, DIA‑

Communication & teamwork

Driving licence (UK)

Education

NVQ/C&G or engine manufacturer qualification

Electrical qualification (advantage)

Tools

ComAp

DIA.NE

TEM Evo

Job description

We currently have a great opportunity for you to join our waste treatment team as a Generator Field Service Engineer. As a successful candidate, your role will be to maintain, diagnose, repair and optimise the performance of a fleet of Combined Heat and Power (CHP) spark ignition biogas engines located across various Thames Water sites.

Due to the nature of this role with travelling in the Thames Water area, the ideal candidate can be based anywhere in the Thames Valley and the London area.

What you'll be doing as a Generator Field Service Engineer

• To carry out the planned and unplanned maintenance of the fleet of CHP Spark Ignition generators within a geographical region, but not limited to.
• Work with current CHP support staff and suppliers to ensure all maintenance is carried out safely, with the least possible downtime and within budget.
• Complete service records and reports in an accurate and timely manner.
• Identifying parts required for the order, lubricants, and waste.
• Demonstrate a zero-compromise attitude towards health, safety, and well-being in all aspects of work.
• Ensuring excellent customer service.
• Working to benefit other team members with Skills from the product training.

Base Location - depending on your location, you can be based at any of our sites in the Thames Valley, Home Counties and the London area.

Working Pattern - 45 hours per week, Monday-Friday. Plus, there is the inclusion of a standby rota for which you will receive additional payment. Plus, there is the opportunity to earn overtime at time and a half or double rates.

You must have the ability to operate and optimise assets using engine/generator controls, such as ComAp and DIA.NE and TEM Evo.

What you should bring to the role

• In-depth knowledge of all aspects of the operation and maintenance of internal combustion engines.
• Ability to carry out thorough, comprehensive, and methodical diagnostics on engine, generator and associated systems.
• Ability to operate and optimise assets using engine/generator controls, such as ComAp and DIA.NE and TEM Evo.
• Competent to work to a high level of quality, alone or as part of a team.

To be successful, you will have the following skills and experience:

• Ideally, NVQ/ C&G or an engine manufacturer's qualification in mechanical engineering.
• Electrical qualification is an advantage, but not essential.
• Proven working hands-on experience working with internal combustion engines and associated systems.
• Natural / Bio / AD Gas engine, CHP, and gas system experience is desirable but not essential.
• Good communication and interpersonal skills are required.
• Full UK driving licence.

What's in it for you?

• Competitive salary between £44,000 and £65,000 per annum, depending on skills and experience.
• Standby rota payments & Overtime opportunities can increase this earning potential by up to a further £13,000 - £15,000 per annum upon completion of essential company training.
• Performance-related pay plan directly linked to company performance measures and targets.
• All PPE and tools, plus the provision of a van when on duty and on call.
• Performance-related pay plan directly linked to company performance measures and targets.
• Annual Leave: 24 days holiday per year, increasing to 28 with the length of service. (plus bank holidays)
• Generous Pension Scheme through AON.
• Generous Paternity Leave, including 4 weeks paid and an optional 2 weeks unpaid.
• Enhanced Maternity Leave, 26 weeks full pay and 13 weeks half pay!
• Access to lots of benefits to help you take care of you and your family’s health and wellbeing, and your finances – from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance.

Find out more about our benefits and perks (Please note different T&Cs apply if on secondment)

Who are we?

We're the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It's a big job, and we've got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come.

Learn more about our purpose and values

Working at Thames Water

Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits.

If you're looking for a sustainable and successful career where you can make a daily difference to millions of people’s lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet.

Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more.

We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else, just let us know; we're here to help and support.

When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It's also a great opportunity to learn more about our business and meet colleagues.