Accounts Receivable Assistant - LDN

Keep creativity flowing — one invoice at a time!

Are you ready to grow your finance career in an ambitious, award‑winning global brand agency where every detail matters and no two days look the same? If so read on...

As Accounts Receivable Assistant, you'll be at the heart of our global operation, collaborating with teams across EMEA and New York to keep cash flow strong and business performance on point. From ensuring seamless billing to spotting opportunities to streamline and improve, you’ll make accuracy feel effortless — and efficiency second nature. You’ll build strong relationships across studios, partner with people who love what they do, and help make sure the brilliant creative solutions we deliver, get paid for — on time, every time.

If you thrive in a fast-paced, creative environment and take pride in being the calm in the chaos this could be the role for you!

ABOUT US:

• 400+ strong global brand agency

• 100% independent

• 28 years young

• 8 studios around the world

Offering unrivalled creativity at global scale, Bulletproof is the world’s largest independent brand agency. Across eight studios, 400 liked-minded individuals create desire through disruption, delivering Growth, Standout and Fandom for our clients. Truly independent, we pride ourselves on shunning convention and getting sh*t done; above all, we march to the beat of our own drum. 

As a business, we blur the lines between insight, innovation, strategy, design, digital, and environmental; all the while bringing our clients the very best of the best. 

At Bulletproof we have three core beliefs:

WE BELIEVE GREAT IDEAS CHANGE THE WORLD

We believe in the power of creativity to influence human behaviour, affect change and pierce conventions.

WE BELIEVE PEOPLE MAKE THE DIFFERENCE

We celebrate human connectivity and culture, and believe diversity delivers richer, deeper thinking with an infectious energy.

WE BELIEVE NAÏVEity breeds brilliance

We believe remaining relentlessly curious and open to new possibilities leads to purer, more interesting and uncharted creative solutions. 

ABOUT THE ROLE:

Job Overview:

As Accounts Receivable Assistant, you will be responsible for the accurate and timely billing of client projects across the Agency's EMEA studios, whilst providing billing support to the New York studio. Acting as a key link between Finance, Client Services, and Project Management teams, the role ensures that all client invoicing is completed accurately, aligned to approved purchase orders (POs), uploaded to client billing portals where required, and collected promptly to minimise working capital risk.

The role supports the financial integrity of the business through effective billing controls, debtor management, cash allocation, and collaboration with Finance Business Partners and operational stakeholders.

* Please note this is a hybrid role working 3 days per week in London studio and 2 days remote.*

Key Responsibilities:

Client Billing & Invoicing

• Prepare and issue accurate client invoices in accordance with contractual agreements, approved client purchase orders, project milestones, and agency billing procedures.
• Ensure all invoices are raised accurately, with a high level of attention to detail, and comply with client-specific billing requirements.
• Validate billing information against client POs and project documentation prior to invoice issuance.
• Ensure timely completion of all monthly and ad hoc billing activities to support revenue recognition and cash flow objectives.

Client Portal Management

• Accurately upload and submit client invoices through a variety of client procurement and finance portals.
• Monitor invoice submission status and resolve any rejections, discrepancies, or queries in a timely manner.
• Maintain records of invoice submissions and supporting documentation to ensure audit compliance.

Purchase Order Management

• Manage client PO allocation and maintenance within internal finance and project management systems.
• Partner closely with Client Service teams to ensure valid purchase orders are obtained, recorded, and assigned to projects before billing.
• Monitor PO utilisation and proactively identify potential shortfalls or risks impacting billing.

Intercompany Billing

• Coordinate the accurate and timely billing of intercompany projects across our global studios
• Work closely with finance counterparts and operational teams across the network to ensure charges are agreed, processed, and reconciled within required timelines.
• Support month-end intercompany reconciliations where required.

Cash Allocation & Accounts Receivable Support

• Match and post client receipts accurately to outstanding invoices within the accounting system.
• Investigate and resolve unapplied cash and payment allocation issues.
• Assist with maintaining accurate customer accounts and aged debt records.

Credit Control & Debt Management

• Issue debtor statements regularly to clients and follow up on outstanding balances.
• Develop effective working relationships with client finance teams to facilitate timely payment of invoices.
• Escalate overdue debt, payment disputes, and collection risks to the Finance Business Partners in a timely manner.
• Support collection activities to minimise overdue debt and improve cash conversion.

Working Capital Management

• Work closely with the finance and operational teams to identify and reduce working capital risks.
• Monitor un-billed revenue, aged receivables, and billing delays.
• Support initiatives to improve billing efficiency, debtor performance, and overall cash flow.

Reporting & Administration

• Prepare regular billing, cash collection, and debtor reporting as required.
• Assist in month-end activities, including revenue and receivables reporting.
• Maintain accurate billing records and supporting documentation.
• Provide ad hoc analysis, reporting, and administrative support to the wider finance team as required.

WHAT YOU SHOULD HAVE

If you tick all of the boxes below, we could be a perfect match!

• Either studying for an accountancy qualification or you have Finance/Business degree level education.
• Strong theoretical knowledge of the business finance function and understanding of billing, accounts receivable, credit control, and finance operations.
• Excellent attention to detail and accuracy.
• Strong Excel skills.
• Strong communication, organisational and prioritisation skills.
• Ability to work independently and meet tight deadlines.

In line with our three core beliefs, we’re looking for people that share our community spirit and are curious enough to question the status quo. Could this be you? If so, apply below!

Competitive benefits package