Job Description Location: Wokingham, UK – 2 days/week onsite (expenses covered) Clearance: BPSS & SC required before start Duration: 6 months (likely extension) Sector: Critical National Infrastructure Overview We are supporting a critical infrastructure organisation in their search for an experienced PostgreSQL Database Administrator (DBA) to support and enhance a distributed, cloud-native EDB PGD environment. This is a highly sensitive role requiring both BPSS and SC clearance prior to onboarding. You’ll play a central role in maintaining the performance, availability, and reliability of a geographically distributed Postgres setup, running on Kubernetes and OpenShift clusters. The system is part of a wider, business-critical platform, demanding strong engineering focus and proactive operational excellence. Key Responsibilities Database Reliability & Performance Proactively identify and resolve performance bottlenecks Enhance database high availability using EDB Postgres Distributed (PGD) Troubleshoot issues and outages across a multi-cluster OpenShift setup Lead query tuning with tools like EXPLAIN, pg_stat_statements, and index optimization Manage capacity planning for CPU, memory, storage, and IOPS Observability & Operations Improve observability tooling: manage metrics, dashboards, and alerts Monitor database health and respond to issues (replication lag, disk I/O, memory pressure) Manage and test backup and disaster recovery strategies (DR playbooks, failover in ORT) Optimize connection pooling to support high-volume applications Collaborate with DevOps and application squads during schema changes and deployments Enhancements & Strategic Support Drive database enhancements aligned with platform upgrades and product evolution Ensure consistency and integrity across distributed database instances Support strategic data initiatives with deep PostgreSQL and Kubernetes expertise Required Skills & Experience Strong hands-on experience as a PostgreSQL DBA, ideally with EDB PGD or equivalent distributed Postgres setups Experience running Postgres in Kubernetes / OpenShift environments Deep knowledge of PostgreSQL internals, performance tuning, and replication strategies Proven ability to work in high-availability, high-security environments Familiarity with observability stacks and database performance tooling Strong troubleshooting skills and an automation-first mindset UK-based with valid BPSS and eligible for SC clearance (or already cleared) What’s in It for You Opportunity to support a high-profile, mission-critical platform Influence modern database architecture in a multi-cloud, containerised environment Contract with strong extension potential and excellent day rate Work alongside experienced engineering teams in a security-conscious, forward-thinking environment