[WBG] Database Administrator (PostgreSQL)

About this role

Project – the aim you’ll have We are seeking an experienced PostgreSQL Database Administrator (DBA) to join our Data Platforms team. This role is responsible for the PostgreSQL database platform, with a particular focus on Azure Database for PostgreSQL Flexible Server, supporting critical production systems within a highly regulated financial services environment. The successful candidate will be responsible for the administration, optimisation, security, availability, and ongoing lifecycle management of enterprise PostgreSQL environments.

The role supports mission-critical business applications, cloud deployments, and development teams delivering strategic technology solutions. Role – how you’ll contribute Administer and support PostgreSQL database environments, primarily Azure Database for PostgreSQL Flexible Server. Ensure high availability, resilience, performance, and security of production PostgreSQL systems. Perform backup and recovery, point-in-time restore, patching, upgrades, performance tuning, capacity management, and maintenance activities.

Configure and optimise PostgreSQL technologies and features including MVCC, VACUUM/autovacuum, WAL, replication, indexing, statistics, roles and privileges, and extensions. Design and support Azure PostgreSQL capabilities including high availability, read replicas, private networking, backup and disaster recovery. Support PostgreSQL security controls, authentication, TLS, least-privilege access, auditing, and integration with Microsoft Entra ID where appropriate.

Monitor and troubleshoot query performance, locking, long-running transactions, connection utilisation, replication lag, storage, and database health. Support connection management and pooling solutions such as PgBouncer. Participate in cloud transformation and database migration initiatives, including migration of workloads to PostgreSQL. Support Database DevOps, infrastructure automation, CI/CD pipelines, Git, and Azure DevOps.

Participate in incident, problem, and change management processes. Maintain operational documentation, standards, runbooks, and support project onboarding activities. Provide PostgreSQL technical leadership, mentoring, and knowledge transfer to other database professionals. Participate in on-call rota and out-of-hours support where required. Expectations – the experience you need 5+ years’ experience administering PostgreSQL environments, including mission-critical production systems.