Senior / Principal Mechanical Design Engineer

Company: RGB Recruitment
Apply for the Senior / Principal Mechanical Design Engineer
Location: Birmingham
Job Description:

Senior / Principal Mechanical Design Engineer

Location: Birmingham City Centre

Salary: Very Competitive

Job Type: Permanent | Full Time

Start Date: Immediate / ASAP

Senior / Principal Mechanical Design Engineer – Building Services Consultancy

An opportunity has become available for a Senior / Principal Mechanical Design Engineer to join a growing building services consultancy based in Birmingham. This role will involve leading the delivery of mechanical building services design across a wide range of projects within the commercial, healthcare, residential, industrial, retail, care and mixed‑use sectors.

The successful Senior / Principal Mechanical Design Engineer will play a key role in the design and coordination of HVAC and mechanical systems, supporting low‑carbon and sustainable building solutions across all RIBA stages.

Responsibilities

  • Lead mechanical building services design across multiple project sectors
  • Deliver projects through all RIBA design stages from concept to construction
  • Design HVAC systems including ventilation, heating, cooling and associated plant systems
  • Produce and review specifications, schedules, technical reports and design calculations
  • Coordinate designs within multidisciplinary BIM and CAD environments
  • Support the integration of low‑carbon and renewable technologies into building designs
  • Liaise directly with clients, architects, contractors and design teams
  • Attend project meetings and provide technical input throughout project delivery
  • Ensure compliance with UK Building Regulations, British Standards and CIBSE guidance
  • Manage workload and project deliverables across multiple live schemes
  • Support and mentor junior engineers and technicians
  • Contribute towards technical excellence and sustainable design delivery

Requirements

  • Degree qualified in Mechanical Engineering, Building Services Engineering or similar
  • Proven experience within a building services consultancy environment
  • Strong technical knowledge of HVAC and mechanical building services systems
  • Experience delivering mechanical design across a variety of building sectors
  • Competent with industry‑standard design and calculation software
  • Experience working within BIM/Revit/CAD environments
  • Experience with IES VE or other thermal modelling software advantageous
  • Strong communication and client‑facing skills
  • Ability to manage multiple projects and deadlines effectively
  • Understanding of sustainable and low‑energy building design principles
  • Full UK driving licence

Desirable Experience

  • Chartered Engineer status or working towards Chartership
  • CIBSE Low Carbon Consultant (LCC) or LCEA accreditation
  • Healthcare project experience including HTM compliance knowledge
  • Experience mentoring or leading junior engineers
  • Knowledge of renewable and low‑carbon energy systems

Benefits

  • Competitive salary
  • Hybrid and flexible working arrangements
  • Contributory pension scheme
  • Generous holiday allowance
  • Christmas office closure not deducted from annual leave
  • Professional development and study support
  • Early finish Fridays
  • Death in service benefit
  • Employee assistance programme
  • Paid volunteering days
  • Clear progression pathways
  • Cycle to work scheme
  • Electric vehicle salary sacrifice scheme

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Posted: June 6th, 2026