Commercial Manager

& Security Systems Ltd; East Midlands; Hybrid; GBP 60,000 - GBP 80,000; Full time

Job summary

A leading security solutions provider is looking for an experienced Commercial Manager / Quantity Surveyor for a hybrid position in Derby. The role involves managing the commercial lifecycle of fire and security projects, ensuring contract compliance and profitability. Candidates should have solid experience in M&E or fire & security sectors and expertise in JCT/NEC contracts. This position offers competitive pay and a range of employee benefits, including training and career development opportunities.

Benefits

23 days’ holiday plus bank holidays

Company vehicle or car allowance

Employee Discount Programme

Pension via Royal London

Life Assurance

Ongoing training and development opportunities

Referral bonus of up to £2,000

Qualifications

• Proven success delivering profitable outcomes under JCT/NEC contracts across complex projects.
• Strong understanding of risk identification and contract administration.

Responsibilities

• Lead risk identification and mitigation on projects.
• Manage project budgets, payments and ensure compliance.
• Measure and value works, reconcile costs, and optimize margins.

Skills

Commercial/QS experience

Understanding of Commercial law

Experience with cash flow management

Job description

Commercial Manager / Quantity Surveyor - Fire & Security Systems

Location: Derby - Hybrid

Salary: Competitive in industry

Trinity Fire & Security Systems are seeking an experienced Commercial Manager to own the commercial lifecycle and cost control of fire & security projects—covering pre‑contract, contract execution, change management, valuations, final account, and post‑project lessons learned.

This dual role combines the strategic, client‑facing responsibilities of a Commercial Manager with the analytical, cost‑management duties of a Quantity Surveyor, ensuring profitable delivery, contract compliance, and cash certainty across a portfolio of projects (typically major projects and assistance to small works if required).

What you’ll be doing

• Lead risk identification and mitigation, interpret specifications/drawings, and select, amend, and negotiate appropriate contract forms (JCT/NEC/bespoke) to secure commercially robust terms.

• Establish and control project budgets and CVRs, manage payments and change control, and maintain all commercial registers to ensure accurate forecasting, compliance, and value protection.

• Measure and value works, reconcile costs, manage interim and final accounts, and optimise margins through productivity validation, value engineering, and procurement efficiencies.

What we’re looking for

You might already be a Commercial Manager or Quantity Surveyor — or perhaps a Fire & security professional ready to take the next step. You’ll have:

• Proven commercial/QS experience within M&E or Fire & Security, with proven success delivering profitable outcomes under JCT/NEC contracts across complex or multi-site programmes.

• A strong understanding of Commercial law and contract administration.

• Experience with CVR, cash flow, WIP, earned value, forecasting, margin management.

What Trinity Offers

• Competitive base salary.

• 23 days’ holiday, increasing with service, plus bank holidays.

• Company vehicle or car allowance.

• Employee Discount Programme – savings across 800+ retailers.

• Pension via Royal London, Life Assurance, and Employee Assistance Programme.

• Referral bonus of up to £2,000.

• Ongoing training and career development opportunities.

Equal Opportunities in Practice

We are committed to equality of opportunity for all staff and applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief and marriage and civil partnerships.

Security Vetting

It is an industry requirement that successful candidates undergo security vetting. Offers of employment are subject to satisfactory vetting and may be withdrawn if the required standards are not met.