Tunnel Mechanical Maintenance Technician – M25
Are you an experiencedTunnel Mechanical Maintenance Technicianseeking a new challenge? Do you have expertise in performing planned maintenance and defect repair work on a variety of mechanical equipment, including pumps, fans, and pipework? If so, we want to hear from you!
We are looking for a skilledTunnel Mechanical Maintenance Technician to join our team. In this role, you will be responsible for ensuring the smooth operation of electrical systems, conducting routine inspections, diagnosing faults, and carrying out repairs and preventative maintenance for the Dartford River Crossing and other M25 tunnels.
If you are interested in a career in Highways, working on the M25 will provide you with unique experiences and challenges that no other project can offer.
The position can be based at ourDartford, South Mimms, or Leatherheadoffices; however, the role will involve travel to all tunnel locations across the M25 network and may require frequent work from the Holmesdale and Hatfield sites.
What you’ll be doing
- To be conversant with the operation of all mechanical plant, within the Pumpstations , OIW sites and other M25 Tunnels, under normal and emergency conditions and be capable of operating systems under local or remote control.
- To be able to carry out Planned Maintenance and defect repair work on a range of mechanical equipment which includes pumps, fans, pipe work etc.
- To complete any records as required, including daily worksheets, and maintenance report sheets.
- To read drawings and carry out fault finding and repairs without supervision.
- To carry out all type of Civil and Mechanical Maintenance work within the capacity of an Mechanical Technician with or without direct supervision.
- Carry out any work of a manual, semi-skilled or skilled nature of any type of trade description (including “out of trade” work) under the instructions of the Maintenance Supervisor.
- Drive various vehicles as required, including those for maintenance purposes.
- Ensure that all relevant Health & Safety requirements are met and safe working practices are adopted at all times.
- Ensure that vehicles, plant and equipment are available and maintained for safe operational use.
- Ensure that routine vehicle checks and drivers hours books are completed in accordance with company procedures.
- Attend incidents and work safely in accordance with policies to facilitate the early clear up of hazard/incident.
- Any other duties within the capacity of a Maintenance Technician as required by Line Managers.
- Live the Connect Plus Services Values.
- Ensure a relentless focus on Zero Harm.
- Support the delivery of Connect Plus Services Sustainability activities.
Who We’re Looking For – Key Requirements
We’re looking for a hands-on, safety-conscious professional with strong mechanical skills and a passion for maintaining essential infrastructure. If you take pride in problem-solving, working collaboratively, and delivering high-quality results, we’d love to hear from you.
Essential Qualifications, Skills & Experience:
Recognised Mechanical Qualification or Apprenticeship
Valid CSCS Safety Card (or willingness to obtain)
Experience operating MEWPs (Mobile Elevating Work Platforms)
Proven ability to maintain and repair mechanical equipment (e.g. pumps, fans)
Strong fault-finding and problem-solving skills using manuals and drawings
Practical knowledge of welding, plumbing, and use of workshop machinery
Understanding of current Health & Safety legislation
Experience working near DNO equipment (G39 qualification)
Full UK Driving Licence – a van will be provided for travel between sites
Working Arrangements:
Standard working hours: Monday to Friday (day shifts)
Requirement to work night shifts for 3 weeks each quarter (for tunnel maintenance)
Participation in on-call rota (1 week in every 3) for emergency response
This is a fantastic opportunity to be part of a supportive, skilled team that plays a key role in keeping the M25 network running safely and efficiently.
Inspiring : Champions curiosity and continuous improvement, role modelling change and managing risks to achieve project outcomes.
Energising: Role models positive and energised project focussed attitudes towards and continuous improvement.
Challenging : seeks and advocates improvements to add value and drive continuous performance.
Challengeable : Encourage a culture of skilled challenging and seek to understand and explore challenge to enable improvement.
Influencing : Builds commitment and consensus, and role models CPS leadership behaviours to deliver our goals.
Why Work for Us?
At Connect Plus Services (CPS), you’ll be part of a world-class team maintaining and operating the M25, Europe’s busiest motorway. As a joint venture between Balfour Beatty, Atkins, and Egis, we play a vital role in keeping millions of journeys moving safely and efficiently.
A Career Like No Other
Working on the M25 offers unrivalled experience, challenges, and opportunities that no other highways project can provide. You’ll be exposed to cutting-edge technology, large-scale infrastructure, and complex engineering solutions, making every day dynamic and rewarding.
Long-Term Stability & Growth
With 15+ years remaining on this project, we offer career stability, professional development, and progression opportunities. Whether you’re looking to build new skills or take the next step in your career, we invest in your growth.
A Supportive & Inclusive Team
At CPS, your contributions matter. We foster a diverse, inclusive, and collaborative work environment where safety, innovation, and teamwork drive everything we do.
About us
CPS is a joint venture between Balfour Beatty, Atkins, and Egis.
At Balfour Beatty we are committed to creating a diverse workforce and an inclusive culture where everyone can be themselves and reach their full potential, not only because this is the right thing to do, but because it makes us a better business.
To ensure we deliver on this commitment, we have a UK Diversity and Inclusion Action Plan which sets out the wide range of targeted, proactive, measurable steps we are taking to make this a reality. You can read our UK Diversity and Inclusion Action Plan in full at www.balfourbeatty.com/value_everyone
To help and support us with our desired commitment to create an inclusive culture we are members of WISE, enei, Business Disability Forum and Women into Construction. In 2020, we signed the Audeliss and Involve Open Letter to demonstrate our commitment to taking key long term and sustainable actions on Black Inclusion.
Balfour Beatty is also a Gold Award holder in the Ministry of Defence ‘Employer Recognition Scheme’ and actively encourage applications from Armed Forces personnel, veterans, and reservists.
As a Disability Confident Employer, we are committed to working with people who have disabilities and long-term health conditions to remove barriers for them in obtaining employment. We are also committed to offering applicants with a disability an interview if they meet the minimum requirements for the role.
This is a hybrid role designed to fully maximize team collaboration on the project, we offer flexible working where you will typically be working from your base CPS office, Leatherhead, Dartford or South Mimms up to three days per week and two days from home.
Note to all internal CPS employees
If you are interested in applying, please submit your application through your parent company’s careers portal by entering the job title in the search bar. If your employing company is not advertising this role, please submit your CV and the role title to
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