Mechanical Project Engineer (Building Services) (Permanent)

Dedicated to sustainable development, Arup is a collective of designers, consultants and experts working globally. At Arup you will have the opportunity to collaborate on ambitious projects – delivering remarkable outcomes for clients and communities, and to do socially useful work that has meaning. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. On Behalf of Arup, we are looking for a Senior Mechanical Engineer for a 12 month contract can be based in Cardiff, Birmingham, Bristol, Nottingham. Aviation Maintenance, Repair & Overhaul (MRO) design team, delivering Mechanical building services and specialist aircraft systems for complex aviation facilities. This role involves leading Mechanical design, supporting multidisciplinary project teams, and guiding junior engineers across a range of aviation projects. Lead and contribute to the design of mechanical building services including HVAC, ventilation, chilled water, heating systems, compressed air and specialist process ventilation. Interface with multidisciplinary teams including structural, electrical, and digital engineering teams to deliver coordinated building systems for complex engineering environments. Undertake site visits, surveys, inspections, and technical assurance activities during construction and commissioning phases. Prepare engineering documentation including calculations, specifications, technical reports, schedules, and equipment selections.Degree in Mechanical or Building Services Engineering. knowledge of mechanical building systems design, including HVAC, cooling systems, process ventilation and building services integration. Proven experience delivering multi‑disciplinary engineering projects in technical or highly regulated environments. Ability to interpret engineering drawings, perform mechanical calculations, and review MEP design packages. Arup’s internal employee networks support their inclusive culture: from race, ethnicity and cross-cultural working to gender equity and LGBTQ+ and disability inclusion – creating a space for everyone to express themselves and make a positive difference….