Billing & Invoicing Specialist

Why Join Us Billing & Invoice Specialist

Location:

Brentwood

Salary:
Up to £31,000 per annum, depending on experience

We're looking for a Billing & Invoice Specialist to join our Finance team on a key contract and play a key role in managing the end-to-end billing cycle. This position is critical to ensuring all materials and subcontractor costs are captured accurately, billed correctly, and recovered in full- protecting margin and supporting strong commercial performance.

You'll work closely with Finance, Operations, suppliers, and IT, providing insight through analysis and reporting while ensuring billing compliance across client systems.

• Manage the end-to-end billing process, producing accurate and timely client invoices
• Provide day-to-day support with client billing applications, ensuring correct submission and tracker updates
• Proactively chase subcontractors for required documentation and invoices within agreed time frames
• Ensure all out-of-scope and chargeable costs are captured correctly on client systems
• Review reactive applications for accuracy, compliance, categorisation, and correct mark‑ups
• Protect profit margins by ensuring mark‑ups are applied correctly on reactive works
• Support supplier reviews and make recommendations for process improvements
• Provide analysis and reporting on cost recovery ratios, highlighting risks and improvement opportunities
• Support resolution of rejected or disputed works to enable resubmission for payment
• Troubleshoot billing discrepancies and system issues, supporting ongoing system development
• Act as a key liaison between Finance, Operations, Supply Chain, Third Parties, and IT
• Ensure billing processes comply with internal controls and agreed client requirements

• GCSE Maths and English (or equivalent)
• Studying towards an accountancy qualification (desirable)
• Intermediate Excel skills

• Experience working in a Sales Ledger or billing-focused finance role
• Proven ability to work to tight deadlines with exceptional attention to detail
• Confident working with Excel and accounting systems
• Strong interpersonal skills and the ability to engage with clients and stakeholders
• Comfortable working under pressure in a fast-paced, changing environment

• Salary:
  Up to £31,000 per annum, depending on experience
• Up to 4% discretionary bonus scheme, subject to achievement of targets.
• 25 days holiday plus Bank holidays
• Group personal pension scheme of matched contributions between 5% and 6%
• Health Cash Plan & Life assurance
• Discounts, vouchers, and financial aid programs
• Learning & Development opportunities
• Funded Training Sponsorship Scheme
• Cycle to Work Scheme

If you are analytical, organised, and passionate about delivering high-quality financial processes, we would love to hear from you.