Ethos Engineering
Senior Project Engineer – Electrical (Data Centre Retrofit)
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Senior Project Engineer – Electrical (Data Centre Retrofit)
Senior Project Engineer – Electrical
About The Role
As a Senior Project Engineer – Electrical, you will play a key role within Ethos’ Data Centre Retrofit area, supporting the delivery of complex upgrades across mission-critical data centre environments.
You will lead the design, specification, and delivery of electrical systems, ensuring projects are delivered safely, efficiently, and to the highest technical standards. Working within live environments, you will help maintain continuity of operations while delivering high-quality engineering solutions.
This role also involves:
- Managing project delivery
- Mentoring junior engineers
- Acting as a key technical point of contact for clients and contractors across major European data centre markets
Day-to-Day Activities
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Lead the design and delivery of electrical building services upgrades in live data centre environments, including:
- M&E upgrades
- Capacity increases
- Technology refreshes
- Phased refurbishments
- Lifecycle replacements
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Develop and manage retrofit-specific design approaches, including:
- Tie-ins to live systems
- Redundancy planning
- Outage and staging strategies
- Resilience design
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Conduct or oversee technical due diligence, such as:
- Capacity unlock assessments (power, cooling, white space)
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Prepare and review:
- Design drawings
- Schematics
- Schedules
- Technical reports
- Tender documentation
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Manage project scope, budget, programme, and contracts by:
- Identifying and mitigating scope creep
- Assessing risks
- Navigating live-environment constraints
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Liaise directly with:
- Clients (hyperscale, colocation, and enterprise operators)
- Contractors
- Vendors to ensure seamless project execution with no operational disruption
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Drive quality assurance and governance, adhering to WAP/PTW protocols in environments that remain operational.
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Mentor and support junior engineers and graduate staff within the retrofit workstream.
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Support business development by contributing to:
- Project proposals
- Client presentations
- Technical strategies for retrofit opportunities across EMEA
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Champion innovation in live-environment engineering and:
- Contribute to improving Ethos’ retrofit delivery processes
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Lead electrical system tie-in strategies for:
- Live power distribution upgrades (UPS changeovers, busbar modifications, generator integration)
About You
Technical Skills
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Proven expertise in electrical building services design for live data centres, including:
- LV/MV power distribution
- UPS systems
- Standby generation
- Busbar upgrades
- Life safety systems
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Hands-on experience delivering electrical upgrades in operational mission-critical facilities, such as:
- Live switchgear replacements
- UPS changeovers
- Phased distribution upgrades
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Experience with software tools:
- AutoCAD
- Revit MEP
- Bluebeam
- Microsoft Office
- Calculation tools: ETAP, Amtech, or DIALux
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Strong understanding of IEC, CIBSE, BS, IS, and EN standards for retrofit and live projects.
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Ability to produce:
- Single-line diagrams
- Schematics
- Technical drawings for complex retrofit scopes
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Knowledge of:
- Commissioning processes
- Power system coordination studies
- Compliance documentation for live data centre upgrades
Experience & Qualifications
- Bachelor’s or Master’s degree in Electrical Engineering (or related field).
- Minimum 8 years' experience in building services engineering, with at least 3 years focused on data centres or mission-critical projects.
- Proven record of working in live, operational environments (e.g., brownfield upgrades, M&E replacements, phased refurbishments).
- Chartered Engineer status (or actively pursuing it) with Engineers Ireland or equivalent.
- Track record of managing multi-million-euro MEP projects from concept to completion.
- Strong familiarity with:
- Irish and EU building regulations
- LEED/BREEAM or an advantageous understanding of the EU Energy Efficiency Directive
- Familiarity with BMS/EPMS integration and smart building systems in mission-critical environments is advantageous.
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Soft Skills
- Excellent communication and presentation skills, with confidence in client-facing engagements.
- Strong organisation and problem-solving ability, capable of managing multiple concurrent retrofit projects.
- Collaborative approach, bridging:
- Mechanical
- Electrical
- Sustainability
- BIM disciplines
- Proactive, detail-oriented mindset with a strong focus on:
- Risk management
- Technical quality in live environments
- Ability to remain composed under pressure, and make sound engineering decisions in constrained operational settings.
Why Join Us?
At Ethos, we prioritise technical excellence alongside personal wellbeing.
Our Offer
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Flexible Fridays: A 9-day fortnight structure, giving you a full second Friday off.
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A supportive culture that values:
- Flexibility and agility
- Learning and career growth
- Teamwork and progression pathways
- Assistance in achieving professional accreditation
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Opportunities to learn from and work alongside:
- Some of the most experienced engineers in the sector
- Within a cutting-edge consultancy.
Benefits
- Flexible Working / Hybrid Model
- 20 days of annual holiday
- Pension scheme
- Coverage for out-of-pocket travel expenses
- Regular:
- Training
- Mentoring
- Further education support
- Support for Chartership, including the professional subscription fee paid by the company
- Heavily subsidised social committee activities, such as:
- 5-a-side football
- Golf society
- Climbing club
- Regular social events
Company Description
Ethos is a collaborative consultancy of engineers and professionals, specialising in:
- Data centre
- Energy infrastructure projects globally.
Our Charter
We believe in: ✔ "Strong human relationships" light the way. ✔ "Clear leadership" lights the path. ✔ That sustainability must always be non-negotiable. ✔ "A can-do mindset" can achieve the seemingly impossible. ✔ "A relentless focus on delivery."
Tagline: Performance Made Possible.
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