
Ethos is a collaborative team of engineers, consultants, and creative thinkers designing and delivering data centre and energy infrastructure across the world's most dynamic markets. As a multidisciplinary consultancy, we combine technical expertise, creativity, and integrated delivery to lead complex, mission-critical projects.
Built on strong relationships, clear leadership, and a can-do mindset, Ethos is entering an exciting phase of growth, expanding our capabilities and taking on increasingly high-impact projects across EMEA and beyond.
Sustainability guides how we design, collaborate, and deliver, creating innovative solutions and lasting value for our clients and communities — making Performance Made Possible.
Ethos is expanding its Energy Infrastructure capability and is seeking a Senior High Voltage Engineer specialising in HV Electrical Engineering to support the development and delivery of HV and MV infrastructure projects across Ireland, the UK and Europe.
The role will focus on the design and delivery of energy centres, substations, landing stations, interconnectors and associated energy infrastructure projects, while supporting the growth of an in-house HV engineering team within Ethos.
This is a senior technical role requiring a strong background in HV substation design, client and utility interface management, and multidisciplinary project delivery. The successful candidate will work closely with internal teams, external consultants, utilities, OEMs and clients to deliver high-quality HV infrastructure solutions.
The role combines:
This position is primarily office-based with regular client meetings, workshops and site visits across Ireland, the UK and Europe.
The ideal candidate will be:
This role will suit an engineer looking to play a key role in the growth of a developing HV infrastructure team within a multidisciplinary consultancy environment.

Ethos Engineering (2005) deliver high-performance mechanical and electrical (M&E) engineering solutions across Ireland and EMEA. Our expertise spans data centres, commercial, offices, and high-tech environments, with services in design & project management, sustainability, smart buildings, and M&E systems for building services.
At Ethos, our EPIC-F values—Excellence, People, Innovation, Clients, and Financial Strength—drive everything we do. We provide bespoke solutions that not only meet regulatory standards but also deliver long-term value through innovation and sustainability.
Our Design & Project Management service offers full oversight from concept to completion, coordinating all project disciplines including mechanical, electrical, civil, and architectural design. With a focus on scope, time, cost, quality, and risk management, we ensure optimal productivity and value engineering throughout the process, tailored to the client needs.
Our Sustainability Services empower clients to meet stringent environmental standards. From energy modelling and whole-life carbon assessments to net zero carbon roadmaps and ESG frameworks, we help reduce carbon emissions and ensure compliance with global sustainability benchmarks like LEED, BREEAM, and GHG reporting. Focusing on your long-term sustainability goals.
Our Digital/Smart Buildings team transforms spaces into intelligent ecosystems. Focusing on sustainability, user experience, productivity, physical security, and efficiency, we integrate digital technologies like IoT, digital twins, and advanced analytics to optimise building performance. We ensure buildings interact seamlessly with people and systems, delivering exceptional results now and in the future.
Ethos’ expansion across EMEA, has been enabled by our ability to create spaces that bring buildings to life. Our methodology involves designing buildings that not only perform today but ones that contribute to the sustainable, green, and circular economy of tomorrow.