Assistant Commercial Manager

Assistant Commercial Manager

Location: Home based (supporting contracts across London/Oxford)

Salary: £46,350 per annum

Employment Type: Full-Time, Permanent (40 hours per week)

Working Hours: Monday to Friday, 8:30am - 5:30pm

About the Role

G4S Facilities Management is seeking an Assistant Commercial Manager to join our commercial team. Reporting directly to the Commercial Manager, you will play an essential role in driving contract-level commercial governance, maintaining core registers, and managing daily commercial support functions across our operational portfolio.

This role serves as a key commercial link between operational site teams, helpdesk functions, project managers, and senior leadership, offering broad commercial exposure across complex, multi-service contracts

Key Responsibilities

• Payment Applications & Billing: Support the monthly payment application lifecycle by liaising with the helpdesk, reconciling task data against contract specifications, and drafting applications for Commercial Manager approval.
• Registers & Commercial Governance: Maintain real-time accuracy across all commercial registers, including contract variations, risks and opportunities, commercial claims, and formal contractual notifications.
• Project & Variation Tracking: Maintain project trackers, compile compliance and cost documentation, and oversee the project document management system.
• Subcontractor & Operational Liaison: Coordinate daily with subcontractors and project managers to resolve blockers, track project progress, and feed updates into weekly commercial reviews and monthly financial forecasts
• Claims, Disputes & Damage Reviews: Review monthly damage reports to audit costs and compile evidence for claim submissions; support active dispute resolutions, contractual negotiations, and historical project audits.
• Contract Administration & Notifications: Prepare formal commercial letters, track client responses, document action items from monthly client reviews, assist the Commercial Manager with contractual reporting, and coordinate deliverables across operational teams.

What we are looking for

Essential:

Strong administrative, workload-planning, and organizational coordination skills.

Excellent written and verbal communication skills with experience drafting professional correspondence.
High proficiency in IT systems and Google Workspace tools.
A structured, process-driven approach with high attention to detail.
Proven ability to capture meeting minutes, track commercial actions, and deliver to strict deadlines.
- A proactive, problem-solving mindset and adaptability to shifting priorities.

Desirable:

Operational experience within Facilities Management (covering both Hard and Soft FM services), including PFI (Private Finance Initiative) contracts and their associated contractual and operational requirements.

Working knowledge of Computer-Aided Facilities Management (CAFM) systems.
Experience reading, interpreting, and administering commercial contracts.
Familiarity with FM technical standards and compliance guidelines (such as SFG20).
Experience working within an educational or public-sector contract setting.
- Background in project coordination and damage/claims validation

Benefits

While working for G4S, you are entitled to a number of benefits and offers from G4S partners and other organisations, from employee assistance provided through SPARK, to RAC cover and so much more, including the below;

• 25 days holiday plus bank holidays. Private Healthcare
  Progression, training and development catered to you.
  Refer A Friend incentives.
  Company pension scheme with employer contributions.
  G4S Life Assurance Scheme.
  Charity work- Match-IT and Payroll Giving.
  Confidential Counselling Services.
  24/7 support specialising in health and medical.
• Discounts on high street shops and brands including several leading high street brands, retailers and travel suppliers.

G4S is the International business of Allied Universal, the world’s leading security and facility services provider and trusted partner to more than 400 of the Fortune 500. Allied Universal delivers unparalleled customer relationships, innovative solutions, cutting-edge smart technologies and tailored services that enable clients to focus on their core businesses. With operations in over 100 countries and territories, Allied Universal is the third largest pr…