Senior High Voltage Engineer (Energy & Industrial)
About Ethos
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.
About the Job
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:*
- Technical leadership
- Project delivery
- Client engagement
- Team development
- Coordination of internal and subcontracted design resources
Responsibilities:
- Lead the delivery of HV and MV infrastructure projects, including:
+ Grid connection infrastructure
+ Landing stations and interconnectors
+ HV auxiliary systems and associated infrastructure
- Develop and review:
+ Substation layouts
+ Protection and control philosophies
+ HV cable systems
+ Earthing and lightning protection systems
+ Secondary systems and auxiliary power systems
- Coordinate and manage multidisciplinary design teams, including:
+ External consultants and specialist subcontractors
+ OEMs and utility stakeholders
- Interface directly with:
+ TSOs / DSOs / utilities
+ Contractors
+ Regulatory and approval bodies
- Support the development of Ethos’ HV engineering capability, including:
+ Recruitment and mentoring
+ Development of internal delivery capability
- Review technical studies and support design decision\-making, including:
+ Short circuit studies
+ Protection coordination
+ Harmonics and power quality studies
+ Earthing studies
- Support tendering, technical bid reviews and project planning activities.
- Attend site visits, inspections and commissioning activities as required.
About You
Experience \& Qualifications
- Degree in Electrical Engineering or equivalent.
- Typically 8–15\+ years’ experience in HV/MV electrical engineering.
- Demonstrable experience delivering:
+ AIS and GIS substations
+ Grid connection infrastructure
+ HV cable and auxiliary systems
- Strong understanding of:
+ Grid forming and Grid Following interfacing
+ Protection and control systems
+ Earthing and lightning protection
+ Utility and TSO/DSO interface requirements
- Experience working within:
+ Utility / TSO projects
+ Energy infrastructure or industrial power sectors
- Experience managing or coordinating engineering teams and external consultants is highly desirable.
- Chartered Engineer status (or working towards) is desirable but not essential.
- Strong knowledge of:
+ Utility and grid connection requirements
+ HV design principles and substation engineering practices
- Familiarity with tools such as:
+ ETAP
+ PowerFactory
+ PSCAD (desirable)
- Strong technical reporting, specification writing and client communication skills.
The ideal candidate will be:
- Technically strong in HV infrastructure design
- Comfortable engaging directly with utilities and clients
- Capable of coordinating multidisciplinary teams
- Interested in helping establish and grow an in\-house HV capability within Ethos
*Why Join Us?*
- Join collaborative leaders – Work alongside experienced, approachable professionals who
- Make a real impact – Contribute to mission\-critical infrastructure projects that support the digital and energy transition across EMEA and beyond.
- Grow with us – As a rapidly growing consultancy, we offer opportunities to develop your skills, broaden your experience, and build your career.
- Shape a more sustainable future – Sustainability isn't an initiative—it's embedded in every project, every discipline, and every decision we make.
- Flexible Fridays and a 9\-day fortnight working schedule — enjoy every second Friday off to maintain work–life balance.
- A culture that values flexibility, learning, and teamwork, with clear progression pathways and support toward professional accreditation.
- Opportunities to work alongside some of the most experienced engineers in the industry, within a forward\-thinking, technology\-driven consultancy.
- Flexible working times
- 20 Days holidays up to 25 days
- Pension Scheme
- Refer a Friend scheme
- Healthcare check\-ups and flu vaccinations
- Gym / Fitness membership Allowance
- Subsidised Health Insurance Allowance
- Working travel out\-of\-pocket expenses
- Travel tax scheme or bike\-to\-work scheme
- Regular training/mentoring / further college support
- Support for Chartership
- A Professional Subscription Fee paid by the company
- Paid Statutory Leaves
- Heavily subsidised social committee
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