About the Role
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.
Lead the delivery of HV and MV infrastructure projects, including:
AIS and GIS substations
Grid connection infrastructure
Landing stations and interconnectors
HV auxiliary systems and associated infrastructure
Develop and review:
Single line diagrams (SLDs)
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:
Internal engineering resources
External consultants and specialist subcontractors
OEMs and utility stakeholders
Interface directly with:
Support the development of Ethos’ HV engineering capability, including:
Technical standards and procedures
Recruitment and mentoring
Development of internal delivery capability
Review technical studies and support design decision-making, including:
Support tendering, technical bid reviews and project planning activities.
Attend site visits, inspections and commissioning activities as required.
Experience & Qualifications
Degree in Electrical Engineering or equivalent.
Typically 8–15+ years’ experience in HV/MV electrical engineering.
Demonstrable experience delivering:
HV substation projects up to 400kV
AIS and GIS substations
Grid connection infrastructure
HV cable and auxiliary systems
Strong understanding of:
Primary and secondary substation systems
Grid forming and Grid Following interfacing
Protection and control systems
Earthing and lightning protection
Utility and TSO/DSO interface requirements
Experience working within:
Experience managing or coordinating engineering teams and external consultants is highly desirable.
Chartered Engineer status (or working towards) is desirable but not essential.
Technical Skills & Knowledge
Strong knowledge of:
IEC, BS, EN and IS standards
Utility and grid connection requirements
HV design principles and substation engineering practices
Familiarity with tools such as:
AutoCAD
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
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.
Why Join us?
At Ethos, we’re dedicated to fostering an environment that encourages both technical excellence and personal wellbeing.
We offer:
Flexible Fridays and a 9-day fortnight working schedule — enjoy every second Friday off to maintain work–life balance.
A state-of-the-art office in Charlemont, Dublin 2, designed to promote collaboration, innovation, and wellbeing.
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.
Benefits:
Flexible working times
20 Days holidays up to 25 days
Pension Scheme
Working travel out-of-pocket expenses
Travel tax scheme or bike-to-work scheme
Regular training/mentoring / further college support
Support for Chartership
Subsidised Health Insurance Allowance
A Professional Subscription Fee paid by the company
Paid Statutory Leaves
Healthcare check-ups and flu vaccinations
Gym / Fitness membership
Heavily subsidised social committee (5 a side, golf society, climbing club and regular social events)
Company Description:
Ethos is a team of collaborative and creative consultant engineers & professionals, leading data centre and energy infrastructure projects globally.
Our Charter:
We believe in strong human relationships
We believe clear leadership lights the path
We believe sustainability is non-negotiable
We believe a can-do mindset can move mountains
We believe in a relentless focus on delivery
Our Tagline:
Performance Made Possible
