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

Billing & Invoice Specialist

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

The Role

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.

About the Job

Key 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 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

To be successful you will have:

Qualifications

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

Experience & 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

What we offer

• 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.