Backend Engineer - Account Insights

Build backend services for customer-facing Account Insights like spending summaries, travel insights, and spend controls (budgets and recurring-payment tracking). Work across a high-throughput streaming and storage stack using Java/Spring Boot and Kafka to deliver accurate, low-latency aggregation through well-documented APIs. Improve categorisation accuracy, own components end-to-end (including production and on-call), and write high-quality tests and documentation.