Senior Building Services Engineer
About Ethos
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.
About the Job
As a Senior Building Services Engineer, you will lead the delivery of mechanical building services/ MEP design for energy, industrial and commercial projects within a multidisciplinary building services consultancy environment. The role focuses on the design of base-build and building services systems for complex and regulated facilities, rather than process or manufacturing equipment design.
You will manage the full project lifecycle from concept through to client handover, build strong client relationships, and mentor engineering staff to ensure all deliverables meet the required technical and quality standards.
This is a hybrid role based in Ireland, with attendance at the Dublin office aligned to team and project requirements.
Responsibilities
Lead mechanical building services design on energy, industrial and commercial projects from concept stage through to completion
Represent Ethos at Client and Design Team Meetings
Deliver mechanical services solutions for buildings, including manufacturing, food and beverage, pharmaceutical, medical devices, life sciences, laboratories and commercial developments
Design and specify HVAC, ventilation, heating, cooling, utilities and life safety systems in line with consultancy-led building services best practice
Develop mechanical services designs for ATEX-classified environments, cleanrooms and laboratories, coordinating closely with safety and compliance requirements
Coordinate mechanical building services designs with architectural, structural, electrical, process and client stakeholders
Carry out continuous design and installation quality checks to ensure compliance with project specifications and applicable standards
Prepare fully detailed mechanical building services tender packages, technical reports, analyses and recommendations
Support construction stages through technical queries, site visits and coordination with contractors and vendors
Take technical ownership of projects, operating with minimal input from senior management
Mentor, guide and review the work of junior and intermediate engineers, ensuring QA standards are met prior to issue
About You
Experience & Qualifications
Honours Degree in Mechanical Engineering / Building Services or a related discipline
7+ years' experience in mechanical building services/MEP Design, ideally within a consultancy setting
Project experience across energy, industrial and/or commercial sectors
Experience working alongside process engineers, with responsibility for base-build and building services systems, not process equipment design
Chartered Engineer status is an advantage but not essential
Must be based in Ireland but visa for travel within Europe on occasion.
Technical Skills
Strong experience in mechanical building services / MEP systems design within a consultancy environment
Proven expertise delivering HVAC and building services systems for industrial buildings
Working knowledge of ATEX directives and mechanical design considerations in hazardous environments
In-depth understanding of CIBSE, ASHRAE, BS, IS and EN standards
Proficient in Navisworks, Bluebeam and the Microsoft Office Suite
Familiarity with consultancy QA processes, design coordination and technical governance
Soft Skills
Excellent communication and client-facing skills
Proven ability to lead projects and coordinate multidisciplinary design teams
Highly organised with strong time management skills
Proactive, collaborative and inquisitive, with an interest in emerging technologies and best practice
Comfortable mentoring engineers and contributing to a positive consultancy culture
Why Join Us?
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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.
Benefits:
Flexible working times
20 Days holidays up to 25 days
Pension Scheme
Refer a Friend scheme
Healthcare check-ups and flu vaccinations
Gym / Fitness membership Allowance
Subsidised Health Insurance Allowance
Working travel out-of-pocket expenses
Travel tax scheme or bike-to-work scheme
Regular training/mentoring / further college support
Support for Chartership
A Professional Subscription Fee paid by the company
Paid Statutory Leaves
Heavily subsidised social committee
