Senior Database Reliability Engineer

About the Role

Modulr is a B2B embedded-payments platform operating at scale in a regulated environment. As we evolve our core data architecture, we’re hiring our first dedicated Database Reliability Engineer to raise the operational resilience of our payments platform.

This is a hands-on role for someone who thinks like a Site Reliability Engineer but has deep database expertise — someone who wants to make a large, busy production estate observable, diagnosable, and safe to operate, and to be the database voice that shapes how we scale. It carries a clear path toward a data-architecture mandate as the platform matures.

Key Responsibilities

• Own the reliability, performance, and observability of our production databases (primarily PostgreSQL / Amazon Aurora), so that issues are seen and understood in minutes, not hours.
• Lead deep-dive diagnosis of production incidents — query performance, lock and wait-event analysis, connection-pool behaviour, blocking sessions — and turn findings into lasting fixes and runbooks.
• Build proactive guardrails: query and statement timeouts, connection-pool standards, slow-query and contention alerting, capacity and saturation monitoring.
• Partner with engineering squads to design schemas, indexes, and access patterns that scale, and to enforce safe database practices in their services.
• Contribute the database-reliability perspective to significant platform-evolution work, including separation of read and write paths and the decomposition of shared database components.
• Improve our database observability tooling and dashboards so reliability is measurable and trends are visible before they become incidents.
• Help embed a culture of operational excellence, blameless post-incident review, and continuous improvement.