Commercial Manager (Senior Quantity Surveyor)
Trinity Fire & Security – Part of Premier Technical Services Group (PTSG)
Location: Derby (Hybrid)
Salary: Up to £80, % bonus + Company Car/Allowance
Trinity Fire & Security are looking for a commercially sharp Senior Quantity Surveyor ready to step into a Commercial Manager role — or an experienced Commercial Manager looking for a business where you can genuinely own the function.
This is a standalone position with real responsibility and autonomy. You'll take full ownership of the commercial performance across a busy portfolio of Fire & Security installation projects, working closely with Project Managers and M&E contractors to ensure contracts are watertight, projects stay commercially on track and revenue is recovered efficiently.
We're replacing a long-standing team member who is retiring, so ideally we'd like someone in post around April/May to allow a proper handover and introduction to systems and live projects.
A strong working knowledge of NEC3 contracts is essential — this is non-negotiable.
The Role
You'll oversee the full commercial lifecycle across multiple M&E installation projects covering fire alarm, intruder and detection systems.
Key duties include:
Reviewing and managing NEC3 contracts, identifying risks and opportunities
Monitoring early warning notices, variations and change control
Managing valuations, applications for payment and final accounts
Working closely with Project Managers to track progress and cash position
Identifying and chasing revenue to maintain strong cash flow
Managing commercial relationships with M&E subcontractors and partners
Supporting negotiations and resolving commercial challenges
Liaising with the in-house legal team on contractual matters when required
This is a busy role that requires someone comfortable working independently, making decisions and taking ownership.
What We're Looking For
Strong Quantity Surveying / Commercial background within M&E, Fire & Security or construction installations
Essential: proven NEC3 contract knowledge and application
Experience managing valuations, CVRs, variations and final accounts
Comfortable operating in a standalone commercial role
Strong financial awareness and commercial judgement
Confident communicator able to work with PMs, subcontractors and senior stakeholders
Salary & Benefits
Basic salary up to £80,000 (dependent upon experience)
10% bonus potential
Company car or car allowance
23 days holiday + bank holidays (rising with service)
Pension scheme
Life assurance (3 x salary)
Employee discounts and wellbeing support
Ongoing development within a growing group
Why Trinity?
Trinity Fire & Security are part of Premier Technical Services Group (PTSG), one of the UK's leading providers of building safety and compliance services. With more than 3,000 employees, over 170 specialist services and a customer base exceeding 90,000, the group continues to grow year on year.
For the right person, this role offers the chance to step into a key commercial position within a well-backed, fast-moving business where your work will be visible and valued.
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