Power Systems Engineer

About the Role

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.

Responsibilities

• Develop detailed ETAP models for complex electrical distribution networks.

• Support the design of resilient MV and LV distribution systems for mission-critical facilities.

• Develop single line diagrams, network schematics and protection philosophies.

• Produce detailed engineering calculations and technical reports.

• Review protection settings and coordinate relay philosophies.

• Assist with utility interface studies and grid connection assessments.

• Review vendor ETAP models and manufacturer data for technical compliance.

• Validate electrical equipment ratings against calculated system duties.

• Collaborate with BIM teams to ensure coordination between physical layouts and electrical system models.

• Support Factory Acceptance Tests (FAT), Site Acceptance Tests (SAT) and energisation planning.

• Assist commissioning teams by validating power system performance against ETAP simulations.

• Contribute to QA processes by reviewing technical calculations, reports and design deliverables.

• Identify opportunities to improve design efficiency through standardisation and digital engineering tools.

• Support the development of internal ETAP standards, templates and modelling procedures.

• Mentor graduate and junior engineers in power systems analysis and ETAP modelling.

• Liaise with clients, utilities, contractors and equipment manufacturers to resolve technical issues throughout project delivery.

• ETAP Certified Professional (or working towards certification).

• Experience with DIgSILENT PowerFactory or SKM Power Tools.

• Experience of large-scale hyperscale data centre developments.

• Knowledge of IEC 61850 and digital substations.

• Understanding of grid code requirements and utility connection processes.

• Experience with renewable generation, Battery Energy Storage Systems (BESS) or microgrid studies.

• Chartered Engineer status or working towards professional registration with Engineers Ireland, IET or an equivalent institution.

About You

• 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.

• 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).

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 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

• 25 Days holidays

• 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