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 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.

Develop and optimize performance-critical components of a low-latency trading platform (pricing engines, gateways, market-data, messaging). Own design, deployment, production support, observability, and architectural decisions. Mentor engineers, conduct reviews, and ensure reliability in cloud-native AWS and colocated environments.