Finance Assistant

SINE Digital

Finance Assistant responsible for finance operations and reporting in a media agency. Supporting month-end close, ledger management, and process improvements within the finance team.

Posted 4/24/2026full-timeLondon • 🇬🇧 United KingdomJuniorWebsite

About the role

Key responsibilities & impact

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.
Complete regular bank reconciliations and cashbook reviews
Reconcile balance sheet accounts and investigate and resolve discrepancies
Maintain accurate, consistent and audit-ready financial records.
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.
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.
Identify and implement improvements to finance systems and workflows
Follow financial controls and data protection requirements, proactively identifying and escalating risks where necessary.

Requirements

What you’ll need

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.

Benefits

Comp & perks

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.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

double entry bookkeepingcore accounting principlesinvoicingledger managementbank reconciliationjournal preparationbudgetingforecastingvariance analysisdata manipulation

Soft Skills

organisational skillsattention to detailverbal communicationwritten communicationindependent workproactive mindsetprocess improvementtime managementproblem-solvingmulti-tasking