At a Glance
- Tasks: Commission and test HV/MV electrical systems in exciting data centre projects.
- Company: Join a fast-paced company working on critical infrastructure across Europe.
- Benefits: Competitive daily rate, long-term contract, and travel perks.
- Other info: Work in dynamic environments with opportunities for growth and development.
- Why this job: Make an impact on high-profile projects while advancing your career.
- Qualifications: Experience with protection relay systems and strong electrical knowledge required.
Location: Various locations across Europe
Contract: 12-Month Freelance Contract
Start Date: June 2026
Overview: We are currently seeking an experienced Freelance Protection Relay Commissioning Engineer to support the delivery of multiple large-scale data centre projects across Europe. This is an excellent opportunity to join a fast-paced and growing sector, working on critical infrastructure projects for leading developers, EPC contractors, and hyperscale clients. The successful candidate will play a key role in the testing, commissioning, troubleshooting, and energisation of HV/MV electrical systems, with a strong focus on protection relay systems and associated commissioning activities.
Responsibilities:
- Commissioning and testing of HV/MV electrical systems within live and greenfield data centre environments
- Configuration, testing, and fault-finding of protection relays
- Carrying out secondary injection testing and relay validation
- Protection scheme testing including interlocks, trip circuits, and logic checks
- Review and interpretation of electrical drawings, schematics, and protection philosophies
- Support energisation activities and switching operations where required
- Liaise with clients, OEMs, subcontractors, and commissioning teams on-site
- Produce commissioning documentation, test records, and punch lists
- Ensure all works are completed in line with project specifications, safety standards, and commissioning procedures
Requirements:
- Proven experience commissioning protection relay systems on mission critical, data centre, substation, or industrial projects
- Strong knowledge of protection relays including: Siemens SIPROTEC, ABB Relion, Schneider MiCOM, GE Multilin, SEL relays
- Experience with secondary injection testing equipment
- Strong understanding of HV/MV systems and electrical protection principles
- Ability to read and interpret electrical schematics and protection drawings
- Previous experience working on data centre projects is highly desirable
- EU passport or valid right to work in Europe preferred
- Fluent English communication skills
Package:
- Competitive daily rate
- Long-term 12-month contract
- Opportunity to work on high-profile hyperscale data centre projects across Europe
- Flights, accommodation, and rotation package available depending on project location
If you are interested in hearing more about this opportunity, please apply directly or reach out for a confidential discussion.
Protection Relay Engineer in London employer: Spencer Ogden
Join a dynamic and innovative team as a Protection Relay Engineer, where you'll have the chance to work on cutting-edge data centre projects across Europe. Our company fosters a collaborative work culture that prioritises employee growth and development, offering competitive rates and comprehensive support including flights and accommodation. With a focus on critical infrastructure, this role provides a unique opportunity to make a significant impact in a fast-paced environment while advancing your career in the electrical engineering sector.
StudySmarter Expert Advice🤫
We think this is how you could land Protection Relay Engineer in London
✨Network Like a Pro
Get out there and connect with people in the industry! Attend events, join online forums, and don’t be shy about reaching out to professionals on LinkedIn. We all know that sometimes it’s not just what you know, but who you know that can land you that dream gig.
✨Show Off Your Skills
When you get the chance to chat with potential employers, make sure to highlight your hands-on experience with protection relay systems. Share specific examples of projects you've worked on, especially those involving HV/MV systems. We want them to see how you can add value right from the start!
✨Be Ready for Technical Questions
Brush up on your technical knowledge before interviews. Expect questions about protection relays and secondary injection testing. We recommend going through your past projects and being prepared to discuss the challenges you faced and how you overcame them.
✨Apply Through Our Website
Don’t forget to apply directly through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love hearing from passionate candidates like you who are eager to work on exciting data centre projects across Europe.
We think you need these skills to ace Protection Relay Engineer in London
Some tips for your application 🫡
Tailor Your CV:Make sure your CV highlights your experience with protection relay systems and HV/MV electrical systems. We want to see how your skills match the job description, so don’t be shy about showcasing relevant projects you've worked on!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you’re the perfect fit for this role. Mention specific experiences that relate to commissioning and testing in data centre environments, and let us know what excites you about working with us.
Showcase Your Technical Skills:We’re looking for someone with strong knowledge of protection relays and secondary injection testing. Be sure to include any relevant certifications or training that demonstrate your expertise in these areas. The more we see your technical prowess, the better!
Apply Through Our Website:Don’t forget to apply directly through our website! It’s the easiest way for us to receive your application and ensures you’re considered for this exciting opportunity. Plus, we love seeing applications come in through our own platform!
How to prepare for a job interview at Spencer Ogden
✨Know Your Protection Relays
Make sure you brush up on your knowledge of protection relays like Siemens SIPROTEC and ABB Relion. Be ready to discuss your hands-on experience with these systems, as well as any specific projects you've worked on that involved commissioning or troubleshooting.
✨Master the Technical Details
Familiarise yourself with HV/MV electrical systems and be prepared to interpret electrical drawings and schematics. You might be asked to explain how you would approach a specific testing scenario, so having a solid grasp of the technical details will help you stand out.
✨Showcase Your Problem-Solving Skills
During the interview, highlight instances where you've successfully diagnosed and resolved issues in protection relay systems. Use the STAR method (Situation, Task, Action, Result) to structure your answers and demonstrate your critical thinking abilities.
✨Communicate Effectively
Since you'll be liaising with clients and teams on-site, strong communication skills are essential. Practice articulating your thoughts clearly and confidently, especially when discussing complex technical concepts. This will show that you're not only knowledgeable but also a great team player.
