Ready to play a key role in powering the UK's future?
Want to be the expert who keeps high-voltage projects safe and compliant?
Then come and join Crown House Technologies - Enterprise Solutions You'll be part of Laing O'Rourke's specialist services business, working on some of the most advanced projects in the UK. We'll give you the support, training, and progression to grow your career while making a real impact on the future of the UK's power network.
What is the role?
The Earthing Control Person (ECP) is responsible for controlling high‑voltage electrical risk on site by ensuring that earthing systems and associated safety controls are correctly planned, implemented, and maintained.
Working on National Grid substation projects, the ECP ensures that HV risks are contained so that construction, installation, and commissioning activities can be carried out safely. This includes managing Impressed Voltage Drain Earthing (IVDE) arrangements, overseeing isolations and authorised works, and ensuring full compliance with electrical safety rules, standards, and site procedures.
The ECP acts as the key authority for earthing and HV risk control, protecting people, plant, and the integrity of the site throughout project delivery.
This position involves regular travel to and from project sites, including Chesterfield, High Marnham, and East Coast areas.
Key Responsibilities
Plan and coordinate Impressed Voltage Drain Earthing (IVDE) activities, including compiling four-week look-ahead programmes.
Ensure all risk assessments, method statements, permits, and inspection forms reference Impressed Voltage risks and control measures.
Prepare and maintain IVDE schedules and registers for IVDEs and FEEs.
Manage procurement, inspection, and maintenance of IVDE equipment.
Verify EAP authorisation and maintain compliance with National Grid training requirements.
Essential Qualifications & Experience
Minimum 5 years' experience in Electrical Site Supervisory / Construction Manager role or as a Senior Authorised Person under Laing O'Rourke M&E Safety Rules or equivalent.
Valid National Grid Competent Person Authorisation.
IOSH Managing Safely or NG SR163 SIS M&E PC Representative Authorisation.
Completed Impressed Voltage Drain Earthing (ECP/EAP) course (Kefax or equivalent).
Valid Authorised Person qualification and First Aid certification.
Desirable Skills
Strong understanding of electrical safety rules and procedures.
Ability to manage complex documentation and compliance processes.
Excellent communication and coordination skills.
About Us
Crown House technologies is one of the UK's most advanced, and innovative, engineering and business services specialists. Part of the Laing O'Rourke Group, and founded on more than 200 years of experience, we are a leading construction and infrastructure technology services provider, supplying a complete Building Services package with communications, ICT, intelligent building, monitoring, BMS and the UK's largest mechanical, electrical & public health manufacturing facility - a 129,000 sq. ft factory - offering Off-site manufacturing and assembly for our digitally engineered modular MEICA packages.
As part of the Disability Confident scheme, we would like to enable access to candidates with long term health conditions and disabilities through the 'Offer an interview scheme'. This supports applicants that meet the essential criteria by offering an interview for the advertised position. Please let us know prior to interview what adjustments are required as well as discussing how we can support you in the workplace.
We want to ensure our recruitment process is accessible to all. If you need the application form in an alternative format or you would like to know more about our recruitment process, please email
About Us
Laing O'Rourke are an international engineering and construction company delivering state-of-the-art infrastructure and buildings projects for clients in the UK, Middle East and Australia.
Certainty, reliability, quality – this is what our clients want. And at Laing O'Rourke, we have more than 150 years of experience delivering it. Laing O'Rourke's story is one of energy, passion, ambition, people and teamwork. We harness the power of our experience, stretching back over a century and a half to deliver certainty for our clients.
As part of the Disability Confident scheme, we would like to enable access to candidates with long term conditions and disabilities through the 'Offer an interview scheme'. This supports applicants that meet the essential criteria by offering an interview for the advertised position. Please let us know if you would like to opt in to this scheme and let us know if you require any adjustments for the interview process.
We want to ensure our recruitment process is accessible to all. If you need the application form in an alternative format or you would like to know more about our recruitment process, please email