Senior Building Services Engineer As a Senior Building Services Engineer, you will lead the delivery of mechanical building services/ MEP design for energy, industrial and commercial projects. Apply Now! 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? 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 Department Energy & Industrial Locations Dublin Remote status Hybrid Employment type Full-time