Principle Mechanical Design Engineer

Reference: 4819165Job ID: 5408649Posted: 2026-08-24Closing date: 2026-11-21Location: BristolSalary: 55,000-65000 DOE (per annum)Job type: PermanentWorking pattern: Full timeIndustry: Engineering / Building ServicesCompany: HaysConsultant: Josh WebbHays office: Bristol — 2nd Floor, 3 Temple Quay, Temple Back EastPhone: 07368696177Email: View email address on click.appcast.io Your new company An innovative and rapidly growing building services consultancy, delivering high-quality engineering solutions across a diverse range of sectors including residential, commercial, education, leisure, secure environments and critical infrastructure. With a strong focus on technical excellence, sustainability and collaborative working, the business offers an exciting opportunity to work on challenging projects within a supportive and forward-thinking environment. Your new role As a Principal Mechanical Engineer, you will join a multidisciplinary design team based in Bristol, taking a lead role in the delivery of building services projects from initial concept through to post-completion evaluation.You will be responsible for producing detailed mechanical building services designs, including calculations, technical analysis, schematics, specifications, equipment schedules and technical documentation. You will represent the business at client, contractor and design team meetings, building strong professional relationships and acting as a trusted technical advisor throughout the project lifecycle.In addition to project delivery, you will support business development activities, mentor and share knowledge with colleagues, contribute to project reviews and help drive the continued growth and success of the business. What you'll need to succeed To be successful in this role, you will have: Chartered Engineer status with a recognised engineering institution, or be on track to achieve Chartership within the next 12 months Significant experience designing mechanical building services systems within a consultancy environment. Strong understanding and practical application of low-carbon and sustainable design principles. Proven ability to lead projects and manage complex engineering design programmes. Excellent communication, leadership and stakeholder management skills. The ability to work independently while contributing effectively within a collaborative team environment. Strong commercial awareness and project delivery experience. Eligibility to work within the UK and excellent written and spoken English. Experience within sectors such as residential, commercial, education, leisure, secure environments or critical systems would be advantageous, as would exposure to client management, business development and tender submissions. Experience with industry-standard software such as IES Virtual Environment, Revit, AutoCAD, Navisworks, SketchUp, Amtech ProDesign and Microsoft Project would also be beneficial. What you'll get in return Competitive salary and benefits package. The opportunity to work on a diverse portfolio of high-profile projects. A clear pathway for professional development and career progression. Exposure to innovative low-carbon and sustainable engineering solutions. A collaborative and supportive team culture. The chance to play a key role within a growing consultancy and contribute to its ongoing success. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. #4819165 - Josh Webb