Finance Assistant

Job Title: Finance Assistant

Reports to: Finance Manager

Location: London, UK

Ideal Start Date: June 2026

SINE Digital is a global leader in media, technology, and insights for the live entertainment industry. With offices in London and New York, we partner with world-class cultural institutions and global brands to drive digital and AI transformation, delivering data-led marketing strategies that maximise ticket sales, elevate brand awareness, and deepen audience engagement.

Our clients include many of the most iconic productions in the West End and on Broadway, alongside some of the world’s foremost cultural organisations such as The Royal Ballet & Opera (formerly the Royal Opera House), Nederlander Theatres, LW Theatres, LW Tickets, and The Royal Court.

We are looking for a Finance Assistant to join our small but high performing Finance team. This is a hands-on role where you will be expected to hit the ground running, taking ownership of day-to-day finance operations while identifying opportunities to improve processes and drive efficiencies.

You will work closely with the finance and operations teams, ensuring accurate information is maintained, records are well organised, and month-end and reporting processes run smoothly.

You will be comfortable working independently, confident solving problems, and proactive in identifying opportunities to improve how things are done.

Ledger management and processing

• Process supplier invoices and credit notes with accurate coding and maintain clear, well-organised records
• Maintain an organised purchase ledger and manage supplier payment runs
• Raise sales invoices and credit notes, ensuring the sales ledger is accurate and up to date
• Monitor outstanding debtors and proactively manage credit control activity, escalating delays or concerns where necessary.

Reconciliations and financial records

• Complete regular bank reconciliations and cashbook reviews
• Reconcile balance sheet accounts and investigate and resolve discrepancies
• Maintain accurate, consistent and audit-ready financial records.

Month end and reporting

• Prepare and post journals
• Support month-end close and management reporting, ensuring data is accurate and reliable
• Support budgeting, forecasting and variance analysis, preparing schedules and reviewing variances.

Stakeholder support and communication

• Respond to finance queries from internal teams, clients and suppliers, using sound judgement and escalating where appropriate
• Work closely with operations and account teams to ensure financial processes run smoothly.

Process and systems support

• Identify and implement improvements to finance systems and workflows
• Follow financial controls and data protection requirements, proactively identifying and escalating risks where necessary.

• Strong understanding of double entry bookkeeping and core accounting principles
• Industry experience essential - Media Agency experience is preferred
• Strong Google Sheets / Excel skills, including formulas and data manipulation is essential
• Confident using Xero (essential)
• 1+ years' experience in a Finance Assistant or similar role
• Confident managing invoicing, maintaining ledgers and working with financial data
• Strong organisational skills with the ability to manage multiple priorities and meet deadlines
• Strong attention to detail, with the ability to identify, investigate and resolve discrepancies
• Clear and confident verbal and written communication skills
• Able to work independently and add value quickly
• Proactive mindset, with a focus on improving processes and driving efficiencies
• Experience using AI tools or automation to improve workflows
• Experience working in a fast-paced or agency environment.

• Competitive salary
• 25 days holiday
• Hybrid working, 3 days in the office, 2 days remote
• Health cash plan (after 3 months service) 
• Employee assistance programme
• Regular free tickets to live events
• Collaborative and social team environment
• Opportunity to contribute to process improvements and shape how the finance function operates
• Potential for the role to become permanent.

At SINE Digital, we’re committed to creating a workplace where people feel respected, valued, and empowered to thrive - just as they are. We believe that diverse perspectives and lived experiences are key to driving innovation, and we’re proud to be an equal opportunity employer. Inclusion is more than a policy, it’s part of our culture. We welcome talent from all backgrounds, regardless of race, colour, religion, gender identity, sexual orientation, age, nationality, disability, marital status, or any other aspect of identity. If you require any adjustments or support during the recruitment process,  let us know at [email protected] - we’re here to ensure you have what you need to show up as your best self.