Find Senior water engineer Jobs in Dublin, D

Senior Project Engineer – Mechanical (Data Centre Retrofit)
Ethos —Dublin, County Dublin
- Holidays
- Hybrid work
- AutoCAD
- System design
- Microsoft Office
Engineering Manager (Water) - REF: 2603a
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- Full-time
- Hybrid work
- Engineering
- English
- Microsoft Office
- Employee assistance program
Quick apply
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- Full-time
- Remote
- AutoCAD
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- Full-time
- Hybrid work
- AutoCAD
- Engineering
- Bachelor's degree
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AECOM —Dublin, County Dublin
- Full-time
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- Master's degree
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Framework Manager - Water
AECOM —Dublin, County Dublin
- Full-time
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Infrastructure Strategy Project Manager
AECOM —Dublin, County Dublin
- Full-time
- Engineering
- Master's degree
- Bachelor's degree
VacancyTitle: Senior Hydraulic Modeller - Wastewater
Nicholas O'Dwyer —Dublin, County Dublin
- Full-time
- Hybrid work
- Project management
- Bachelor's degree
- Business
- Annual leave
- Employee assistance program
Senior Rail Engineering Manager
AECOM —Dublin, County Dublin
- Full-time
- Hybrid work
- Engineering
- System design
- Leadership
Graduate Cost Managers / Quantity Surveyors - Ireland (2026 starts)
AECOM —Dublin, County Dublin
- Full-time
- Hybrid work
- Master's degree
- Bachelor's degree
- Communication skills
Senior Risk Manager
AECOM —Dublin, County Dublin
- Hybrid work
- Business
- Communication skills
Development Infrastructure Engineer (Civil)
AECOM —Dublin, County Dublin
- Full-time
- Hybrid work
- AutoCAD
9d
Senior Project Manager:Residental projects
AECOM —Dublin, County Dublin
- Full-time
- Hybrid work
- Project management
Senior MEP Quantity Surveyor
AECOM —Dublin, County Dublin
- Full-time
- Master's degree
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Senior Project Manager:Noise Insulation
AECOM —Dublin, County Dublin
- Full-time
- Project management
- Contracts
- In-person
Engineering Manager - REF: 2536c
Fingleton White —Dublin, County Dublin
- Full-time
- Hybrid work
- Engineering
- English
- Microsoft Office
- Employee assistance program
Quick apply
Planning Manager
AECOM —Dublin, County Dublin
- Full-time
- Project management
- SharePoint
- Communication skills
Sales Engineer Liquid Cooling
Tate Europe —DUBLIN 10, County Dublin
- Full-time
- Bachelor's degree
- No degree
- HVAC
Quick apply
Project Manager
AECOM —Dublin, County Dublin
- Full-time
- Project management
- Contracts
- In-person
Senior Quantity Surveyor
AECOM —Dublin, County Dublin
- Full-time
- Hybrid work
- Master's degree
- Bachelor's degree

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Senior Project Engineer – Mechanical (Data Centre Retrofit)

Ethos -
Dublin, County Dublin

Apply Now

Job details

Qualifications

AutoCAD
Bluebeam
Mechanical Engineering
System design
Microsoft Office
Master's degree
Revit
Presentation skills
Bachelor's degree
Communication skills

Full job description

About the job:

As a Senior Project Engineer – Mechanical, you will play a key role within Ethos’ Data Centre team, with a focus on retrofit projects across mission-critical data centre environments.

You will lead the design, specification and delivery of mechanical 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 will also involve managing project delivery, mentoring junior engineers and acting as a key technical point of contact for clients and contractors across major European data centre markets.

Your day-to-day activities:

Lead the design and delivery of mechanical building services upgrades within live data centre environments, including M&E upgrades, capacity increases, technology refreshes, phased refurbishments, and lifecycle replacements.

Develop and manage retrofit-specific design strategies, including tie-ins to live systems, redundancy planning, outage and staging strategies, and resilience design.

Conduct or oversee technical due diligence of existing data centre facilities, including capacity unlock assessments (power, cooling, and white space).

Prepare and review detailed design drawings, schematics, schedules, technical reports, and tender documentation.

Manage project scope, budget, programme, and contracts — identifying and mitigating scope creep, risks, and live-environment constraints.

Liaise directly with clients (hyperscale, colocation, and enterprise operators), contractors, and vendors to ensure project goals are achieved with zero operational disruption.

Drive quality assurance and governance across all assigned projects, adhering to WAP/PTW protocols in live environments.

Mentor and support the development of junior engineers and graduate staff within the retrofit workstream.

Support business development by contributing to proposals, client presentations, and technical strategies for retrofit opportunities across EMEA.

Champion innovation in live-environment engineering and contribute to the continuous improvement of Ethos’ retrofit delivery model.

Lead phasing strategy for live cooling and HVAC upgrades, ensuring continuity of critical mechanical infrastructure throughout delivery.

About you:

Technical Skills

Strong expertise in mechanical systems design for live data centre environments, including chilled water plant, CRAC/CRAH upgrades, air handling units, in-row cooling, and fire suppression systems.

Experience delivering M&E upgrades within operational facilities — including tie-ins to live plant, outage management, and resilience planning.

Proficient in AutoCAD, Revit MEP, Bluebeam, and Microsoft Office; working knowledge of IES, HAP, or similar mechanical analysis tools is advantageous.

Strong knowledge of CIBSE, ASHRAE, BS, IS, and EN standards applied in retrofit and live-environment contexts.

Understanding of PUE optimisation and cooling efficiency improvements to meet EU Energy Efficiency Directive targets and client ESG requirements.

Familiarity with commissioning and integration of mechanical systems within live, mission-critical facilities.

Experience & Qualifications

Bachelor’s or Master’s degree in Mechanical Engineering or a related discipline.

Minimum 8 years’ experience in building services engineering, with at least 3 years focused on data centre or mission-critical projects.

Demonstrable experience working in live, operational data centre environments — including brownfield upgrades, M&E replacements, or phased refurbishments.

Chartered Engineer status (or actively working towards Chartership) with Engineers Ireland or equivalent.

Proven track record managing multi-million-euro MEP projects from concept to completion.

Strong understanding of Irish and EU building regulations; knowledge of LEED/BREEAM and the EU Energy Efficiency Directive is an advantage.

Soft Skills

Excellent communication and presentation skills, with confidence in client-facing settings.

Strong organisational and problem-solving abilities, capable of managing multiple concurrent retrofit projects.

Collaborative approach to working across multidisciplinary teams including mechanical, electrical, sustainability, and BIM disciplines.

Proactive, detail-oriented mindset with a sharp focus on risk management and technical quality in live environments.

Calm under pressure — able to make sound engineering decisions within constrained, operational environments.

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 / Hybrid Working
20 days of holidays
Pension Scheme
Coverage for working travel out-of-pocket expenses
Regular training, mentoring, and further college support
Support for Chartership
A professional subscription fee paid by the company
Heavily subsidized social committee activities (5-a-side football, 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

Apply Now

Refine Your Search

senior water engineer jobs in dublin, d

Senior Project Engineer – Mechanical (Data Centre Retrofit)

Engineering Manager (Water) - REF: 2603a

Senior Development Infrastructure Engineer (Civil)

Senior Traffic Control Engineer - Technology Services

Senior EIA Consultant

Framework Manager - Water

Infrastructure Strategy Project Manager

VacancyTitle: Senior Hydraulic Modeller - Wastewater

Senior Rail Engineering Manager

Graduate Cost Managers / Quantity Surveyors - Ireland (2026 starts)

Senior Risk Manager

Development Infrastructure Engineer (Civil)

Senior Project Manager:Residental projects

Senior MEP Quantity Surveyor

Senior Project Manager:Noise Insulation

Engineering Manager - REF: 2536c

Planning Manager

Sales Engineer Liquid Cooling

Project Manager

Senior Quantity Surveyor

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