Commissioning Engineer

Job Title: HV/LV Commissioning Engineer - Generalist Senior Service Representative I Department: Power Systems Service Reporting To: Service Representative Manager Location: Site-Based (UK, Overseas & Offshore) About the Role We are seeking an experienced and motivated HV/LV Commissioning Engineer to join our growing Commissioning team. The successful candidate will play a key role in the delivery of commissioning, testing, maintenance, fault diagnosis, modification, and refurbishment activities across HV and LV electrical distribution systems, switchgear, substations, and associated critical power infrastructure up to 33kV. This position offers the opportunity to work on a diverse range of industrial, commercial, utility, renewable energy, critical infrastructure, data centre, defence, and power distribution projects throughout the UK and internationally. The role is ideally suited to an engineer who enjoys hands-on commissioning, technical problem-solving, customer interaction, and working within demanding project environments while maintaining the highest standards of safety, quality, and technical excellence. In addition to conventional HV/LV distribution systems, the role will involve exposure to Automatic Transfer Switches (ATS), Electric Vehicle (EV) charging infrastructure, protection and control systems, and critical power applications. Key Responsibilities Technical Delivery Perform commissioning activities on HV and LV switchgear, substations, transformers, protection systems, and associated plant up to 33kV. Conduct functional testing, secondary injection testing, relay configuration, and protection verification. Perform installation supervision, commissioning, maintenance, modifications, refurbishment, and fault diagnosis activities. Support system energisation, integration, and operational handover. Lead technical investigations and resolve protection, control, and network-related defects. Support commissioning activities on ATS systems, EV charging infrastructure. Carry out Factory Acceptance Tests (FAT) and Site Acceptance Tests (SAT) where required. Assist with customer witness testing and final project acceptance. Commissioning & Testing Activities Carry out testing and commissioning activities including: High Voltage Testing (V to 33kV) CT Magnetisation Curve Testing CT Primary Injection Testing VT Primary Injection Testing Relay Secondary Injection Testing Numerical and Electromechanical Relay Configuration Protection Scheme Verification Control Circuit Wiring Testing Point-to-Point Wiring Verification Mechanical and Electrical Functional Testing Circuit Breaker Timing and Operation Testing Protection and Interlocking Testing Transformer Testing including: Insulation Resistance Testing Winding Resistance Testing Ratio Testing Vector Group Verification G59/G99 Protection Scheme Testing ATS Functional and Failure Simulation Testing EV Charging System Integration and Protection Testing Planning & Coordination Ensure commissioning readiness through review of drawings, documentation, settings, and test procedures. Allocate and manage commissioning activities in conjunction with project managers. Provide technical support and mentoring to junior engineers where required. Health, Safety & Compliance Carry out site-specific Risk Assessments. Assist in producing Method Statements and Safe Systems of Work. Ensure all commissioning activities are performed in accordance with company and client safety requirements. Demonstrate strong understanding of electrical safety associated with live HV systems. Ensure compliance with BS EN, IEC, DNO, National Grid, and client specifications. Promote a positive safety culture and lead by example on all projects. Quality & Documentation Complete commissioning documentation including: Test Sheets Test Reports Redline Drawings As-Built Documentation Handover Documentation Review documentation produced by other engineers and provide technical feedback. Document test results and produce detailed site reports. Ensure reports and commissioning records are submitted within agreed timescales. Verify all test equipment is calibrated, maintained, and fit for purpose. Customer & Business Support Maintain strong working relationships with clients and stakeholders. Deliver customer training and technical support activities. Assist in preparing quotations and technical proposals for site activities. Promote company service offerings and identify opportunities for business growth. Represent the company professionally during site works and customer engagements. Candidate Profile Essential Experience Minimum 5 years' experience in HV/LV commissioning, protection testing, and electrical distribution systems. Experience installing, commissioning, maintaining, and fault-finding on switchgear and substations up to 33kV. Experience working independently and as part of a multidiscipline engineering team. Experience working on UK, overseas, and offshore projects. Strong background in protection and control systems commissioning. Experience supervising commissioning activities and site teams. Desirable Experience Automatic Transfer Switches (ATS). Electric Vehicle (EV) charging infrastructure. Data Centres. Renewable Energy Projects. Utility and DNO Networks. Offshore, Nuclear, Defence, or Critical Infrastructure sectors. Technical Knowledge Demonstrable experience in: HV & LV Switchgear Commissioning Protection Relay Testing & Configuration HV Network Commissioning up to 33kV Primary and Secondary Injection Testing CT & VT Testing Transformer Commissioning Control & Protection Systems Circuit Breaker Testing G59/G99 Schemes ATS Systems EV Charging Infrastructure SCADA Interfaces Electrical Safety and HV Operational Procedures Qualifications Essential Degree, HNC/HND in Electrical Engineering or equivalent industry experience. Full UK Driving Licence. Valid Passport. Strong understanding of electrical engineering principles and HV safety practices. Desirable Authorised Person (AP) or Senior Authorised Person (SAP). ECS/CSCS Card. IOSH or NEBOSH Qualification. DNO or National Grid Authorisations. EV Charging Qualifications. HV Switching Authorisations. Core Technologies HV/LV Switchgear • 11kV & 33kV Networks • Protection Relays • Omicron Testing • Primary & Secondary Injection • Transformers • ATS • Standby Generation • EV Charging Infrastructure • SCADA • G59/G99 Protection Schemes • Electrical Distribution Systems What we offer you: Competitive salary & Bonus Scheme, 28 Days Annual Leave + Public Holidays, Pension Scheme, Employee Share Ownership Programme, Various Health & Wellbeing Support Options, Gym Flex, Open Talent Market (internal mobility opportunities + access to mentors & projects globally), Shopping & Dining Discounts, Learning Portal and much more. At Schneider Electric, Diversity & Inclusion is at the heart of our organisation, it's an integral part of our history, culture, and identity. We recognise that embracing diversity unlocks innovation and creativity and fosters collaboration. We want our employees to reflect the diversity of our communities and the customers we serve. As a result, our teams are stronger to drive the company's future. We are proudly participating in the Disability Confident Program offering support to people in the workplace who consider themselves living with a disability. Apply now: Please submit an online application to be considered for any position with us. You know about us, so let us learn about you! Apply today. #LI-WM1 At Schneider, we believe that every employee is a talent who deserves equal opportunities. This means you matter. Every individual needs to feel valued, supported, and treated fairly to do their best work. Our Total Rewards is our way of saying: “We see you. We value you”. It’s more than just pay and benefits- it’s a meaningful investment in you. It is designed for you to perform, grow, feel safe, and elevate your potential to shine as an impact maker. For this UK based position, the expected pay range is GBP 50, - GBP 75, per year. This pay range includes base pay and short-term incentives. The compensation range for this full-time position applies to candidates located within the United Kingdom. Our pay ranges are determined by the local market. Schneider Electric is there when it matters most to you Our Total Rewards package outlines all the benefits and support you’ll enjoy as part of the Schneider Electric team: Care for Yourself and Your Family. We ensure you feel secure with benefits that help you and your family thrive: health and life insurance, paid time off, parental and care leave, flexible work options, and confidential counseling for life’s challenges. Invest and Plan Your Future. We help you plan and invest for the future with competitive pay and programs: your base salary, short-term incentives or sales incentives, opportunities to own company shares, and retirement savings plans for your future. Grow Your Skills and Career. We commit to helping you grow with ongoing performance and development conversations, Senior Talent Program, global career opportunities, access to our Schneider Career Hub for new positions, projects, and mentors, and learning platforms like Coursera to equip you with the skills for today and tomorrow. Team Up in the Workplace. We encourage teaming up through project opportunities on the Schneider Career Hub, smart ways to collaborate, celebrating contributions via a recognition program, sharing your voice in our engagement survey, and fostering an inclusive, caring workplace. Support Your Community. We make a difference in your community with volunteer leave, programs through the Schneider Electric Foundation, and initiatives that support youth education. Looking to make an IMPACT with your career? When you are thinking about joining a new team, culture matters. At Schneider Electric, our values and behaviors are the foundation for creating a great culture to support business success. We believe that our IMPACT values – Inclusion, Mastery, Purpose, Action, Curiosity, Teamwork – starts with us. IMPACT is also your invitation to join Schneider Electric where you can contribute to turning sustainability ambition into actions, no matter what role you play. It is a call to connect your career with the ambition of achieving a more resilient, efficient, and sustainable world. We are looking for IMPACT Makers; exceptional people who turn sustainability ambitions into actions at the intersection of automation, electrification, and digitization. We celebrate IMPACT Makers and believe everyone has the potential to be one. Become an IMPACT Maker with Schneider Electric – apply today! €40 billion global revenue +9% organic growth + employees in + countries You must submit an online application to be considered for any position with us. This position will be posted until filled. Schneider Electric aspires to be the most inclusive and caring company in the world, by providing equitable opportunities to everyone, everywhere, and ensuring all employees feel uniquely valued and safe to contribute their best. We mirror the diversity of the communities in which we operate, and ‘inclusion’ is one of our core values. We believe our differences make us stronger as a company and as individuals and we are committed to championing inclusivity in everything we do. At Schneider Electric, we uphold the highest standards of ethics and compliance, and we believe that trust is a foundational value. Our Trust Charter is our Code of Conduct and demonstrates our commitment to ethics, safety, sustainability, quality and cybersecurity, underpinning every aspect of our business and our willingness to behave and respond respectfully and in good faith to all our stakeholders. You can find out more about our Trust Charter here Schneider Electric is an Equal Opportunity Employer. It is our policy to provide equal employment and advancement opportunities in the areas of recruiting, hiring, training, transferring, and promoting all qualified individuals regardless of race, religion, color, gender, disability, national origin, ancestry, age, military status, sexual orientation, marital status, or any other legally protected characteristic or conduct.