About the Role

As a Site Resident Engineer (Mechanical), you will act as Ethos Engineering’s on-site mechanical representative on a complex data centre project in Ireland. You will be responsible for overseeing the installation, quality, and commissioning readiness of mechanical and controls systems, ensuring full compliance with design intent, specifications, Irish regulations, and industry best practice.

This role requires a strong site presence and close collaboration with mechanical contractors, commissioning teams, project managers, and designers. You will play a critical role in driving quality, safety, and programme delivery across all mechanical systems on site.

Experience & Qualifications

Third-level qualification in Mechanical Engineering or a related discipline
Minimum of 5 years’ experience working as a Site Engineer on complex construction projects
Strong experience within data centre environments or similar mission-critical or industrial projects
Experience working with main contractors, subcontractors, or project-based organisations
Solid understanding of Irish Health, Safety, and Environmental legislation
Chartered Engineer status is advantageous but not essential
Must be based in Ireland and eligible to work on site full-time

Key Responsibilities

Act as the primary on-site mechanical engineering representative for Ethos Engineering
Chair and attend site meetings with mechanical contractors to ensure clarity on drawings, specifications, and design intent
Clearly communicate technical information to foremen, operatives, and subcontractors
Monitor mechanical installations to ensure compliance with specifications, benchmarks, and recognised good practice
Carry out regular site inspections and produce snagging and defects lists
Record daily site activities, progress, and key occurrences in site diaries
Report on progress of mechanical and controls contractors to the Project Manager
Liaise closely with the mechanical commissioning team to align on programme, risks, and readiness for testing
Attend Factory Acceptance Tests (FATs) as required and document compliance with performance requirements
Carry out system walkdowns to verify installations align with approved designs
Witness site testing and demonstrations to confirm systems are ready for client handover
Liaise with project planners regarding construction programmes and contractor outputs
Ensure all contractor works are undertaken safely and in compliance with Irish Health, Safety, and Environmental regulations
Maintain accurate quality records in line with method statements, quality plans, and inspection and test plans
Upload BCaR inspection records and observations to Zutec
Manage site documentation and workflows through Procore and Zutec
Supervise drawing registers and ensure the latest approved drawings and specifications are in use
Provide records in respect of variation orders and site instructions
Supervise and mentor junior or trainee engineers on site
Assist the Safety Manager in maintaining and monitoring safe working practices
Actively manage your own professional development and contribute to team knowledge sharing

Technical Skills & Expertise

Broad technical experience across mechanical building services systems, including:
- HVAC and cooling systems
- Ventilation systems
- Domestic and process pipework
- Process water packaged equipment
- Drainage systems
- Control systems (BMS and stand-alone panels)
- Fire suppression systems (Water Mist, Inergen)
Strong understanding of mechanical measurement parameters, including pipework, ductwork, room pressurisation, and control parameters
Experience in mechanical QA/QC and installation compliance checking
Working knowledge of BIM and 3D coordination, with the ability to use Navisworks as a site review and survey tool
Proficiency in site data and document management platforms such as Procore and Zutec
Strong working knowledge of Microsoft Office and site management software

Experience & Qualifications

Third-level qualification in Mechanical Engineering or a related discipline
Minimum of 10 years’ experience working as a Site Engineer on complex construction projects
Strong experience within data centre environments or similar mission-critical or industrial projects
Experience working with main contractors, subcontractors, or project-based organisations
Solid understanding of Irish Health, Safety, and Environmental legislation
Chartered Engineer status is advantageous but not essential
Willingness to work on a site-based contract role in Ireland

Personal Attributes & Team Fit

Excellent verbal and written communication skills, with the ability to produce clear, objective site reports
Professional, confident, and capable of influencing a wide range of stakeholders
Strong organisational skills with a proactive, solutions-focused approach
Ability to analyse site conditions and adapt effectively to changing project demands
Demonstrates initiative, resilience, and attention to detail
Committed to collaboration, mentoring, and maintaining high engineering standards

Why Join Us?

At Ethos, we’re dedicated to fostering an environment that encourages both technical excellence and personal wellbeing. As a Power Systems Engineer, you’ll be part of a highly skilled, collaborative team that leverages innovation and simulation to shape more sustainable and efficient designs across diverse projects.

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)

Our vision is to: “Be the company people want to work with, and for”

Our values differentiate and focus us every day to be EPIC - for our people and our customers.

Site Resident Engineer (Mechanical & Controls Engineer)

Benefits

Job Description