Finance Manager

About this role

FINANCE MANAGER Hybrid (UK-based) | Full-Time Flexibility on how often you come into the office, as long as you're able to travel to the London office when required. ABOUT US Reactive Markets is the 2026 OTC Trading Platform of the Year (Risk.net http://Risk.net). Our network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers.

We build trading systems that operate at the edge of what's technically possible — where nanoseconds matter and a dropped message costs real money. Our engineering team is small, senior, and deeply invested in the craft of building cutting edge, reliable, high-performance systems. THE ROLE We're looking for a Finance Manager to own the operational management of our finance function — accurate, timely management accounts, statutory accounts oversight, and the processes and controls that keep our finances reliable as we scale.

You'll run month-end close, own balance sheet reconciliation and cash flow, lead the team responsible for AR/AP, payroll, VAT, and HMRC processes, and bring the analytical rigour that helps us make good financial decisions as we grow. You'll also manage external relationships (auditors, solicitors, bankers), support external investment and funding activity, and run accounts across multiple business entities, including regulated entities in different geographies.

KEY RESPONSIBILITIES - Month-end close and reporting — own the close process end-to-end and prepare the monthly management accounts pack (P&L, balance sheet, cash flow), presenting to leadership as required - Balance sheet, cash flow, and VAT — reconciliations, cash flow forecasting, and end-to-end ownership of the quarterly group VAT return - Statutory accounts and audit — independently manage the year-end audit and contribute to annual statutory accounts under FRS 102 - Team management — manage the AR & AP team, setting objectives and developing capability - Multi-entity accounting — accurate inter-company accounting across parent and subsidiary entities - Systems and process improvement — maintain and improve finance systems, identifying opportunities for efficiency gains - Strategic input — financial modelling and risk analysis to support decision-making, plus external investor/funding support WHAT WE NEED Qualification: - ACA, ACCA, or CIMA qualified.