Job Title: Principal Mechanical Engineer - Building Services / Operational Assets
Location: Manchester
Salary: Competitive (depending on experience)
Job Type: Permanent, Full-Time

The Opportunity
We're looking for a Principal Mechanical Engineer to join a specialist building services consultancy and strengthen their growing Operational Assets team in Manchester. This position is ideal for a Chartered, or soon-to-be Chartered, engineer who thrives on solving complex challenges in existing buildings and delivering sustainable, energy-efficient solutions.

You'll work with a broad range of clients across commercial offices, residential developments, healthcare facilities, education estates, industrial and retail properties, helping them improve building performance and move towards net zero carbon targets. The role combines hands-on mechanical design, property consultancy, and strategic advice, making it varied and rewarding.

What You'll Do

Lead the design and delivery of mechanical building services projects across multiple sectors
Carry out design, calculations, specifications, and technical drawings through all RIBA stages
Advise clients on retrofit, refurbishment, energy optimisation, and decarbonisation strategies
Deliver consultancy services such as: condition and due diligence surveys, PPM schedules, asset registers, EPCs, dilapidations, and troubleshooting reports
Oversee commissioning, site inspections, and post-occupancy performance reviews
Prepare clear technical reports including feasibility studies and maintenance strategies
Develop and maintain client relationships while contributing to work winning and business growth
Support, mentor, and supervise junior engineers, helping to grow the team's capabilityWhat We're Looking For

Degree-qualified Mechanical Engineer (CEng or close to chartership)
Solid experience in mechanical building services design engineering
Background in existing buildings, refurbishment, and retrofit projects
Knowledge of HVAC systems, sustainable design, and low-carbon technologies
Familiarity with UK regulations, CIBSE guides, and relevant EU standards
Strong organisational and communication skills with the ability to manage deadlines
Track record of leading teams, delivering projects, and engaging clientsWhy Apply

Permanent role with a respected worldwide MEP consultancy
Opportunity to work on varied and high-profile projects across the UK
Progression opportunities in a team focused on sustainability, decarbonisation, and building performance
A chance to shape projects that are making buildings healthier, more efficient, and future-ready
Opportunity to benefit from a 9 day fortnight
A comprehensive benefits package including enhanced pension, holidays and other perks.If this opportunity is of interest, please get in touch with Rob Jones at Calibre Search in Manchester on (phone number removed).

Calibre Search promote equality in the workplace and we welcome applications from all suitably skilled or qualified candidates regardless of their sex, race, disability, religion/beliefs, sexual orientation or age. We act as both an employment agency and employment business