Assistant Management Accountant

Location: Reigate (Hybrid - 2 days in office)

Contract: Permanent, full-time

Department: Finance

Reports to: Management Accountant

Salary: Up to £45,000 DOE

Working Pattern: 2 days per week onsite | 4.5 day working week (Half day Fridays)

Infinity is a market-leading advanced analytics and call-tracking service working with some of the world’s most well-known brands. As a company, we’re ever evolving, using cutting-edge tech and a drive for success to see us through. Our growth is exponential, with annual revenue of (£)18m+. Our mission is clear, to become the best call-tracking provider in the world. There’s never been a better time to join Infinity.

The Role

The Assistant Management Accountant sits at the heart of the Finance function, keeping the day-to-day numbers accurate, timely and well-organised.

This role goes beyond day-to-day processing. You will take ownership of key revenue and cost processes, prepare a first draft of the monthly management accounts, and provide meaningful variance analysis and reporting to support commercial decision-making.

You will be proactive, commercially curious and committed to accuracy spotting issues before they become problems and looking for smarter, more scalable ways of working.

Working closely with the Management Accountant and wider business teams, you will help Finance operate efficiently, strengthen controls, improve processes and deliver real value across Infinity Tracking Limited.

What You’ll Own

Revenue, Billing & Renewals

• Own the end-to-end billing process, ensuring customer invoicing is accurate, complete and on time
• Work with Sales and Customer Success to keep billing data, contract updates and customer changes accurate; investigate and resolve billing anomalies and revenue movements
• Prepare monthly reporting on renewals, ARR movements, churn and billing variances, identifying revenue leakage and recommending corrective actions

Supplier Management & Accounts Payable

• Maintain an accurate supplier database, including financial details, contractual information and key dates
• Process and review purchase invoices, ensuring accurate coding, approval and compliance with purchasing policy; track outstanding POs and support accruals at month end
• Analyse supplier spend and cost movements, highlighting budget variances and savings opportunities
• Maintain the expenses system, ensuring employee expenses and credit card submissions are accurately coded, compliant and reported

Payments, Debtors & Bank

• Process supplier and statutory payments in line with agreed terms and approval controls, ensuring bank postings are accurate and reconciled
• Support debtor management by allocating receipts, reconciling balances and providing clear information to Credit Control; investigate reconciling items promptly and maintain accurate audit trails

Management Accounts & Balance Sheet

• Prepare a first draft of the monthly management accounts, including P&L, Balance Sheet, Cashflow and supporting schedules
• Prepare and post monthly journals including accruals, prepayments, deferred income, payroll and intercompany entries
• Own balance sheet reconciliations, investigate variances and anomalies, and support the Management Accountant with reporting and commentary

Commercial Analysis & Reporting

• Analyse gross profit, overheads, customer profitability and operational costs, investigating variances and understanding key financial drivers
• Support the Management Accountant with budget reviews, forecasts and reporting, providing accurate variance analysis and clear commentary

Fixed Assets, VAT & Payroll

• Maintain the fixed asset register, ensuring additions, disposals, depreciation and asset movements are recorded accurately
• Prepare VAT return workings and supporting schedules, ensuring compliance with HMRC requirements
• Support payroll preparation, reconciliations and journals, including pensions and benefits administration

Audit & Process Improvement

• Prepare audit schedules, the year-end pack and all supporting documentation, and take an active role during the audit itself
• Support process improvement across Finance and provide ad hoc cover across the team as required

Essential

What We’re Looking For

• Part-qualified AAT, ACCA or CIMA, or qualified by relevant experience
• Experience in a finance role covering month-end processes, reconciliations, accounts payable, billing, revenue or management reporting
• Strong accounting knowledge across accruals, prepayments, journals, reconciliations and management accounts preparation
• Proactive and commercially curious, with the confidence to investigate issues and propose solutions
• Excellent attention to detail and a strong sense of ownership over accuracy, completeness and deadlines
• Competent in Excel and comfortable working with large datasets and financial systems
• An interest in process improvement and automation, with a curiosity for how finance technology can help
• Clear communicator with strong stakeholder management skills, able to build credibility across teams
• Able to manage competing priorities effectively in a fast-paced environment

Desirable

• Experience in a SaaS, subscription, technology or high-growth business
• Familiarity with Sage 200 and Sage Intacct

Why Join Us

This is a great opportunity to build genuine breadth across a busy, growing finance function with real ownership from day one and clear scope to shape how Finance operates.

You will work closely with experienced finance professionals, take a lead on meaningful work including the monthly management accounts, and play an active part in improving and automating processes as the function scales.

Benefits You Can Enjoy

• 4.5 day working week (Half day every Friday- 1pm finish)
• 25 days holiday (with the option to buy up to an additional 5 days per year)
• Private single medical insurance
• Employee Assistance Programme
• Life Assurance (4x Salary)
• Enhanced Maternity and Paternity Pay
• Tech Scheme Loan (of up to £2,000 per year)
• Ride to Work Scheme
• Season Ticket Loan
• Dedicated annual company and team social budget

At infinity, our aim is to be the best call tracking provider in the world and to do that we welcome our employees with open arms and create an environment where you can bring your best self, every day! We're an equal opportunities employer. That means we'll never discriminate based on race, religion, origin, gender expression, sexual orientation, age, marital status, social economics status or disability status. In fact, our recruitment process is completely anonymised, and we don't see any of your personal details when we review your application.

At Infinity, we don't treat our hiring process as a box ticking exercise and we're just as interested in team fit as we are technical fit. So, even if you don't meet all the requirements listed in one of our vacancies, get in touch with us anyway because we'd love to hear from you

We believe conversations matter and that you deserve to understand yours better. Our journey started in 2010 when we identified the need for a call tracking product from over a decade of experience of managing paid search campaigns.

Following a steady, organic growth and a strategic investment, we now have a presence across five locations, including San Francisco, London, and Baltimore.

Despite numerous additions to our platform, our founding principles still drive what we do now. We give businesses clear, reliable insights on how their digital strategy is performing today, making it easier to get better results tomorrow.

The possibilities for our clients continue to grow as we work on numerous exciting developments, and curate an expanding network of tech and agency partners.