Principal Electrical Critical Systems Engineer We are a integral, independent, multi-disciplinary consultancy delivering sustainable engineering and design solutions across the built environment. With over 1,200 engineers and designers across 29 locations, we apply our expertise to local market conditions to deliver resilient, low-carbon engineering solutions. We are 100% partner-owned and are proud to have been named Building Magazine's Engineering Consultant of the Year in 2024, 2022, and 2021.
As part of this role, you will be joining our dedicated data centre team. In 2025, we were named Data Centre Consultancy of the Year by Data Centre Review and were ranked in the Top 10 by Data Centre Magazine in 2023.
We're looking for an experienced and client-focused Principal Engineer with electrical design experience to join our data centre team.
You will have excellent electrical design and consulting experience, ideally from a highly technical background. Your previous project experience will demonstrate an ability to transition into our data centre sector.



You do not need previous data centre experience to apply. Our data centre specialist designers will mentor you as you enter our internal DC101 programme. You'll play a leading role in some of the most high-profile data centre projects in the world. As part of our collaborative, multi-disciplinary team, you will drive the delivery of regional and global data centre projects. As part of the role, you'll be engaging directly with clients, shaping technical strategies, as well as reviewing and developing designs for our projects. As a Principal, you'll also support the development of junior engineers, as well as contribute to project planning and fee proposals. Produce electrical designs, including schematic diagrams, layouts, and technical calculations.
Prepare technical specifications, calculations, schedules, project reports, and supporting documentation.
Conduct site inspections and surveys to inform and validate des

📌 Principal Electrical Engineering (Madrid)
🏢 Cundall Johnston & Partners
📍 Madrid