Please note that if the salary detailed is a range, the salary offered will be dependent on experience.
Principal/Senior HV Design Engineer
- Posted 16 February 2026
- Salary £400 - 440 per day
- LocationGreater London
- Job type Contract - Full Time
- Job duration6 Months
- Discipline Highways, Transport & Infrastructure
- ReferenceJO0000064607
Job description
Our client is looking to appoint a Principal / Senior HV Design Engineer to join their Energy team. The ideal candidate will have strong UK HV design experience, particularly working with 132kV and 400kV systems.
This is an excellent opportunity to work across a diverse portfolio of technically complex projects for clients nationwide. Schemes may include Data Centres, HVDC, interconnectors, wind farms, substations, BESS, geotechnical solutions, protection systems, LVAC, FEED studies, and reconnection works.
This is a 6-month contract outside IR35, requiring attendance at the client's London office 3 days per week.
Key Responsibilities
·Develop HV system designs from concept through to detailed design, including design reviews, cost estimation, site supervision, and technical support as required.
·Provide specialist technical guidance on all aspects of HV engineering and system design.
·Produce plant and equipment technical specifications, cable route and power specifications, tender documentation, and technical/progress reports.
·Demonstrate strong working knowledge of NGET, NETS, RES and BS7671 (including latest amendments).
·Coordinate effectively with multidisciplinary engineering teams, ensuring accurate interfaces across all project functions. Attend and lead internal and external meetings with clients and subcontractors.
·Undertake technical calculations including TMF, EMF and EMC assessments, with a solid understanding of sheath-induced voltage calculations.
·Carry out design verification and peer reviews to ensure technical compliance and quality assurance.
·Ensure all designs comply with CDM regulations, relevant legislation, and company procedures.
·Support temporary works design schemes where required.
·Maintain strong working relationships with clients, designers, project teams, and the supply chain.
·Ensure drawings and specifications contain sufficient and accurate information for construction. Proactively request any missing information to avoid programme delays.
·Confirm inspection and test plans are completed in accordance with the PMP and specifications, including dimensional and quality checks.
Requirements
Essential:
·Bachelor's Degree in Electrical & Electronic Engineering.
·Proven experience in HV design (132kV / 400kV systems preferred).
Desirable:
·Experience working within a consultancy, contractor, or utility environment in the energy sector.
·Chartered Engineer (CEng) status with current membership of IET or CIBSE.
FOOTNOTE:
If you feel that you are right for this role technically, but the rate, location or seniority does not suit you specifically then please still feel free to send us your CV. We constantly recruit for roles very similar to this one at all levels UK Wide. We are always keen to chat with you discreetly about your employment situation.
Even if you are happy in your current role for now, we always welcome calls from Highways, Infrastructure & Transportation professionals keen to make their introductions for future months or years. Our specialist team has a combined 100+ years' experience in this market. Please call Evan Brookes at Carrington West on 02393 876025 for more information.
By applying for this position, you are agreeing for Carrington West to hold and process your personal data in accordance to our Data Protection Policy. Your data will be shared with third party clients specifically relevant to any roles you have applied for. If at any stage, you wish to withdraw your consent please contact us.
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