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Ethos is seeking a Power Systems Engineer to join our expanding Data Centre Group , supporting the design and delivery of resilient electrical infrastructure for some of the world's most advanced mission-critical facilities.
Working within multidisciplinary engineering teams, you will provide specialist expertise in power system modelling, analysis and electrical network design, ensuring the highest levels of reliability, resilience and operational performance across large-scale data centre developments.
A key aspect of this role is the development of digital power system models using ETAP, undertaking detailed network analysis to inform design decisions from concept through to commissioning.
You will work closely with electrical, mechanical, BIM, commissioning and project delivery teams to develop technically robust solutions that comply with international standards and meet demanding client requirements.
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 seeking a Power Systems Engineer to join our expanding Data Centre Group , supporting the design and delivery of resilient electrical infrastructure for some of the world's most advanced mission-critical facilities.
Working within multidisciplinary engineering teams, you will provide specialist expertise in power system modelling, analysis and electrical network design, ensuring the highest levels of reliability, resilience and operational performance across large-scale data centre developments.
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A key aspect of this role is the development of digital power system models using ETAP, undertaking detailed network analysis to inform design decisions from concept through to commissioning. You will work closely with electrical, mechanical, BIM, commissioning and project delivery teams to develop technically robust solutions that comply with international standards and meet demanding client requirements.
Experience & Qualifications
Degree in Electrical Engineering, Power Engineering or a related discipline.
1+ years' experience in electrical or power systems engineering within a building services consultancy, engineering consultancy or industrial environment.
Experience delivering projects within data centres, pharmaceutical, semiconductor, healthcare, industrial or other mission-critical facilities is highly desirable.
Good understanding of European and UK electrical standards including IEC, BS, IS and EN standards.
Strong knowledge of electrical distribution systems from HV through MV and LV.
Power Systems & ETAP Experience
Experience using ETAP (or equivalent software such as DIgSILENT PowerFactory or SKM) for:
Development of complete electrical network models.
Load flow analysis.
IEC 60909 short circuit studies.
Protection coordination and selectivity studies.
Time-current coordination (TCC) development.
Arc flash hazard analysis.
Harmonic analysis.
Motor starting studies.
Voltage drop analysis.
Power quality assessments.
Transient and dynamic system studies.
Contingency and network reliability analysis.
Equipment duty verification.
Generator and UPS performance analysis.
Cable ampacity and derating studies.
Experience creating and maintaining ETAP digital models throughout the project lifecycle, ensuring alignment with design revisions and as-built information, would be highly advantageous.
Technical Skills
Experience designing or reviewing:
HV, MV and LV distribution systems.
Primary and secondary substations.
Transformers.
Switchgear.
Busbar systems.
Standby generators.
UPS systems (static and rotary).
Battery Energy Storage Systems (BESS) (desirable).
DC power systems.
Emergency power systems.
Earthing and bonding systems.
Lightning protection systems.
Generator synchronisation and load sharing.
Automatic Transfer Switches (ATS).
Static Transfer Switches (STS).
Understanding of:
Data centre power resilience architectures (N, N+1, 2N, 2(N+1), Distributed Redundant).
Utility grid connections.
Fault level management.
Critical power infrastructure.
Operational resilience principles.
Energy efficiency and power system optimisation.
Software
Experience with:
ETAP
AutoCAD.
Revit.
Microsoft Office.
Familiarity with BIM workflows.
Knowledge of Python, MATLAB or scripting for engineering automation would be advantageous.
Join collaborative leaders – Work alongside experienced, approachable professionals who combine technical excellence with calm, supportive leadership.
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.
We offer:
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.
Private Irish engineering consultancy designing data-centre, energy, industrial and smart-building infrastructure for business clients.
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