THE ROLE A leading international engineering consultancy is seeking a Principal Mechanical Engineer to join its expanding Dublin team. This is a senior leadership role focused on delivering technically complex projects, driving innovation in mechanical design, and mentoring high-performing engineering teams. You will take ownership of mechanical design delivery across major projects, acting as a key client interface while ensuring best-in-class engineering standards. KEY RESPONSIBILITIES Lead mechanical design delivery from concept through to completion across multiple sectors Act as technical authority across HVAC, public health, and energy systems Manage and mentor multidisciplinary engineering teams Oversee design quality, compliance, and technical standards Engage directly with clients, stakeholders, and project partners Manage project budgets, programmes, and resource allocation Support business development, including bids and tenders Drive sustainable and energy-efficient design solutions KEY PROJECTS You will play a key role in delivering a range of high-profile developments, including: Large-scale data centre campus cooling strategy, HVAC systems, and energy optimisation for mission-critical environments Major commercial office development low-carbon, high-performance mechanical design aligned with sustainability targets Pharmaceutical / life sciences facility complex HVAC and cleanroom design with strict regulatory compliance EXPERIENCE & QUALIFICATIONS Degree in Mechanical Engineering or related discipline 812+ years experience within building services / data centre / life sciences / commercial sectors Proven experience operating at Senior or Principal Engineer level Strong background in HVAC, heating/cooling systems, and public health design Experience delivering projects across the full design lifecycle Chartership (or working towards) highly desirable Experience with relevant design and modelling tools (e.g., IES, Hevacomp, Revit/BIM) SKILLS & ATTRIBUTES Strong leadership and people management skills Excellent client-facing and communication ability Commercial awareness and delivery focus Ability to manage multiple large-scale projects simultaneously High level of technical expertise and attention to detail Strong problem-solving and decision-making capability SALARY & BENEFITS Salary: €85,000 €105,000 (depending on experience) Performance-related bonus Pension contribution Private healthcare Hybrid and flexible working Generous annual leave with service increases Professional development and chartership support Opportunity to work on landmark, high-impact projects If you are a building services design engineer please send your CV to or call. Skills: Principal Mechanical Engineer