Strategic Billing & Invoicing Specialist

Arcus FM Limited; Brentwood; On-site; GBP 19,000 - 31,000; Full time

Benefits offered by this job

4% discretionary bonus scheme

25 days holiday

Pension scheme with matched 5–6%

Health Cash Plan & Life assurance

Discounts, vouchers, and financial aid

Learning & Development opportunities

Funded Training Sponsorship Scheme

Cycle to Work Scheme

Job summary

Arcus FM Limited in Brentwood is seeking a Billing & Invoice Specialist to join the Finance team and own the end-to-end billing cycle. You will ensure materials and subcontractor costs are captured accurately, billed correctly, and recovered in full, protecting margins and supporting strong commercial performance.

You will collaborate with Finance, Operations, suppliers, and IT, providing analysis and reporting while ensuring billing compliance across client systems.

Qualifications

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

Responsibilities

• 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 timeframes.
• 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 recommend 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.

Skills

Attention to detail

Interpersonal skills

Deadline driven

Working under pressure

Education

GCSE Maths & English

Accountancy study (desirable)

Tools

Excel

Accounting systems

Job description

Arcus FM Limited in Brentwood is seeking a Billing & Invoice Specialist to join the Finance team and own the end-to-end billing cycle. You will ensure materials and subcontractor costs are captured accurately, billed correctly, and recovered in full, protecting margins and supporting strong commercial performance.

You will collaborate with Finance, Operations, suppliers, and IT, providing analysis and reporting while ensuring billing compliance across client systems.