{"id":2584146,"url":"https://alion.io/job/ethoseng-senior-project-engineer-mechanical-data-centres","title":"Senior Project Engineer - Mechanical (Data Centres)","company":{"id":4418411,"name":"Ethos Engineering Limited","domain":"ethoseng.ie","url":"https://alion.io/company/ethoseng","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"B","score":79,"open_postings":7,"ghost_share":0,"stale_share":0.857,"repost_share":0,"time_to_fill_p50_days":24,"computed_at":"2026-11-10T06:52:35Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dublin, Ireland"],"countries":["IE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":69000,"max_usd":118000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":63},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-09-23T06:27:27Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-11-10T10:48:04Z","board_verified":true,"closed_at":null,"days_open":48,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":48},"description":"About Ethos\nEthos 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.\nBuilt 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.\nSustainability guides how we design, collaborate, and deliver, creating innovative solutions and lasting value for our clients and communities - making Performance Made Possible.\nAbout the Job\nEthos is looking for a highly skilled Senior Project Mechanical Design Engineer with 10+ years experience. They will need to lead the design of mechanical building services for projects in the data centre sector. As a Senior Project Mechanical Design Engineer, you will oversee projects across the EMEA region, managing the full project lifecycle from initial concept to client handover. You will confidently handle project delivery while building and maintaining strong client relationships. In addition, you will mentor and guide engineering staff, ensuring all team deliverables meet our quality assurance standards before handover. One of your primary deliverables in this role will be the management of several projects and ensuring that all members of the team stay on track with deliverables.\nResponsibilities:\nOversee the development and workload of team members to optimise productivity.\n\nPossess extensive knowledge of discipline areas to guide decision-making and problem-solving effectively.\n\nUnderstand client needs and develop strong client relationships to deliver tailored solutions that meet expectations.\n\nComprehend contract terms and conditions to control scope creep and maintain project integrity.\n\nDelegate tasks strategically to achieve maximum value and enhance team engagement.\n\nReport progress to the Group Management Team to ensure transparency and alignment with organisational goals.\n\nManage quality control within projects to ensure deliverables meet established standards.\n\nEngage in resource management to optimise resource allocation and project execution.\n\nPromote a positive message internally and externally to enhance team morale and the company’s reputation.\n\nAbout You\nThis role offers a hybrid remote arrangement in Ireland, requiring attendance at the Dublin office as determined by the team's schedule.\n\nMinimum of 10+ years of mechanical design experience.\n\nHold a professional qualification.\n\nRole would be as a senior member of the design team, working under the team leadership to deliver leading data centre developments for some of the largest tech firms in Ireland and overseas.\n\nCandidate would need excellent communication skills, representing Ethos as the design team in client meetings.\n\nAbility to lead projects and take briefs from the project lead on large projects, delivering and controlling the required tasks.\n\nCandidate needs to balance multiple tasks, prioritise, and delegate as appropriate to meet project deadlines.\n\nExcellent report writing skills and the ability to explain complex engineering issues in simple and clear language.\n\nGood understanding of HVAC and building controls.\n\nExperience in the design of plumbing and drainage systems is preferred.\n\nTraining and professional development of junior and intermediate engineers working as part of the group.\n\nTraining and mentorship will be provided to develop the right candidate to progress into a lead role within the Data Centre team.\n\nWhy Join Us?\nJoin collaborative leaders - Work alongside experienced, approachable professionals who\ncombine technical excellence with calm, supportive leadership.\n\nMake a real impact - Contribute to mission-critical infrastructure projects that support the digital and energy transition across EMEA and beyond.\n\nGrow with us - As a rapidly growing consultancy, we offer opportunities to develop your skills, broaden your experience, and build your career.\n\nShape a more sustainable future - Sustainability isn't an initiative-it's embedded in every project, every discipline, and every decision we make.\n\nWe offer:\nFlexible Fridays and a 9-day fortnight working schedule - enjoy every second Friday off to maintain work-life balance.\n\nA culture that values flexibility, learning, and teamwork, with clear progression pathways and support toward professional accreditation.\n\nOpportunities to work alongside some of the most experienced engineers in the industry, within a forward-thinking, technology-driven consultancy.\n\nBenefits:\nFlexible working times\n\n20 Days holidays up to 25 days\n\nPension Scheme\n\nRefer a Friend scheme\n\nHealthcare check-ups and flu vaccinations\n\nGym / Fitness membership Allowance\n\nSubsidised Health Insurance Allowance\n\nWorking travel out-of-pocket expenses\n\nTravel tax scheme or bike-to-work scheme\n\nRegular training/mentoring / further college support\n\nSupport for Chartership\n\nA Professional Subscription Fee paid by the company\n\nPaid Statutory Leaves\n\nHeavily subsidised social 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