Design Manager – M&E Division (Mechanical, HVAC & Fire Suppression)
Since 2017, Harmony Fire has become one of the fastest-growing companies in Europe — and we’re continuing to scale with purpose. Growth for us means creating safer environments, improving compliance across the built environment, and offering outstanding career opportunities to our team.
Our Mechanical & Electrical (M&E) Division is expanding, and we are looking for a Design Manager to lead the technical design function across a range of projects. From commercial HVAC systems to fire suppression and building services packages, this is an opportunity to shape compliant, efficient, and coordinated solutions that genuinely improve the spaces people live and work in.
About the Role
As Design Manager, you’ll take ownership of the end-to-end design process — leading internal and external design teams, supporting pre-construction efforts, and ensuring design intent is delivered accurately into buildable, compliant solutions.
You will work across a variety of projects, with a strong focus on mechanical and HVAC systems. Experience with fire suppression (e.g. sprinkler design) is highly desirable, but not essential. What matters most is your ability to lead technically, collaborate effectively, and ensure all designs meet the highest standards.
Key Responsibilities
* Lead and coordinate M&E design activities across pre-construction and delivery phases
* Produce and manage technical designs, schematics, calculations, and coordination drawings
* Oversee design risk assessments, specification development, and compliance checking
* Interface with clients, consultants, and in-house teams to define design scope and resolve issues
* Support estimating teams with technical input during tender and bid stages
* Ensure designs meet industry standards, including CIBSE, British Standards, and Building Regs
* Manage internal designers and external consultants, ensuring on-time, accurate delivery
* Contribute to technical strategy and continuous improvement across the M&E division
What We’re Looking For
* Proven experience in M&E or HVAC design (building services engineering background)
* Knowledge of UK technical standards, regulations, and codes of practice
* Proficiency with design software (e.g. AutoCAD, Revit, Hevacomp, or similar)
* Excellent coordination and communication skills across multiple disciplines
* Experience working in a Design & Build (D&B) or contractor-led environment
* Fire suppression or sprinkler system design experience (desirable but not essential)
* Ability to lead teams, manage deadlines, and ensure quality technical delivery
What you can expect:
* Unlimited holiday policy
* Up to 50% annual bonus scheme
* Bespoke Personal Development Plan with mentoring and training
* Modern offices with lunches, snacks, and team socials
* Family-friendly policies, including enhanced maternity and paternity leave
* Recognition and reward programme, including international incentives
* Cycle-to-work scheme
* Two major company events each year
* Auto-enrolment pension scheme
Our Values
* Athlete’s Grit – Resilience, drive, and a willingness to push through challenges
* Captain’s Duty – Accountability, leadership, and follow-through
* Fun-Loving Heart – Bringing energy, optimism, and support to the team
If you're a design leader with a background in M&E or HVAC who’s ready to shape safer, smarter environments — and want to be part of a values-driven business — we’d love to hear from you.