Electrical commissioning engineer - high voltage

Position Summary

Company Description

⚡️ About Assystem
At Assystem, our mission is to accelerate the energy transition worldwide. Our 7,500 Switchers combine long-standing engineering expertise with project delivery and digital capability to support complex, safety-critical infrastructure. In the UK, we are embedded in landmark programmes including Hinkley Point C, Sizewell C and future Small Modular Reactor developments. We support projects from construction through commissioning and into operation, helping deliver safe, low-carbon energy for generations.

Why Join the Community of Switchers?
You will be joining one of the three largest nuclear engineering companies in the world, trusted on the most demanding regulated programmes globally. Assystem offers long-term project stability, exposure to full lifecycle delivery, and the opportunity to deepen your commissioning expertise within a strong technical community. Your future team works collaboratively, sharing knowledge and maintaining the highest standards of safety and quality.

Job Description

The Job Mission
This is a full-time, site-based role at Hinkley Point C, and candidates must be able to work on site five days per week. You will act as a High Voltage Commissioning Electrical Engineer on a major nuclear new build programme.
Your role is to ensure safe, compliant, and technically robust commissioning of high voltage electrical systems.

⚡ Deliver high voltage commissioning activities to approved safety and quality standards
Develop commissioning procedures, test documentation, and system validation records
Support factory acceptance tests, design reviews, and commissioning readiness checks
️ Plan and manage commissioning sequences and detailed test programmes
Supervise contractor commissioning teams during live site activities
Analyse test results and produce clear technical commissioning reports
Provide technical input supporting project milestones and delivery objectives
️ Ensure compliance with environmental, safety, and regulatory requirements

Qualifications

Required Skills and Qualifications
Degree or equivalent qualification in Electrical or related engineering discipline
⚡ Proven experience commissioning high voltage electrical systems
️ Background in nuclear, utilities, oil and gas, or heavy industrial environments
Experience with diesel generators or large generator systems is desirable, but not essential
Strong understanding of commissioning processes and documentation
️ Ability to deliver commissioning activities with minimal supervision
Comfortable working within large, multidisciplinary project teams
️ National Grid experience highly desirable

Additional Information

Why Apply?
This role offers hands-on involvement in commissioning safety-critical I&C systems on one of the UK's most significant nuclear programmes. You will build deep commissioning capability, work alongside experienced specialists, and strengthen your long-term career within a global engineering organisation delivering nationally important infrastructure.

Benefits include:
Hybrid Working Opportunity
Flexible working hours
️ Market Leading Pension scheme (8% company contribution / 4% personal contribution)
️ 25 days' paid annual leave + bank holidays + option to buy or sell days
Professional fees reimbursed
Employee referral scheme
Competitive Sick Pay - Support when you need it
Income Protection & 3x Salary Death-in-Service Cover
Free Digital Gym Access - Expert-led fitness classes
24/7 Employee Support Line - Mental health, financial & legal help

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people's ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.