Teams at Reactive Markets

Own the finance function, including month-end close, management accounts, balance sheet reconciliation, cash flow forecasting, VAT returns, statutory accounts, and year-end audit. Manage AR/AP staff, oversee payroll and HMRC processes, coordinate multi-entity and intercompany accounting, improve finance systems, and provide financial modelling, risk analysis, and investor funding support.

Lead FIX client onboarding and integrations across FX, equities, and digital assets. Manage projects from requirements through certification and production go-live; configure, test and validate FIX sessions; troubleshoot connectivity and production issues; provide frontline EMEA technical support; document procedures and collaborate with engineering, product, and account teams while using AI/automation to streamline processes.

Lead engineering ownership of a multi-datacentre ClickHouse estate: cluster ops, schema and query engineering, capacity planning, ingestion correctness, workload isolation, monitoring, backup/recovery, and mentoring a follow-the-sun team. Drive architectural direction, runbooks, and production-ready, observable systems while collaborating with Go capture services and Python analytics pipelines.