[WBG] Database Administrator (PostgreSQL)

Softwaremind

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Remote Warsaw, Masovian Voivodeship, Poland Full-time Posted 14d ago

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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.
Strong PostgreSQL administration, performance tuning, and troubleshooting experience.
Experience with PostgreSQL internals including MVCC, VACUUM/autovacuum, WAL, query planning, statistics, indexing, locking, and transaction management.
Experience designing and operating highly available and resilient PostgreSQL environments.
Experience with backup, point-in-time recovery, replication, disaster recovery, patching, and major-version upgrades.
Experience with Azure Database for PostgreSQL Flexible Server or equivalent enterprise managed PostgreSQL services.
Experience with Azure networking and security concepts relevant to managed databases, including private connectivity, DNS, identity, and access control.
Experience managing PostgreSQL roles, privileges, authentication, extensions, and security configuration.
Strong SQL skills and experience diagnosing and optimising complex queries.
Linux administration and shell scripting skills.
Experience with automation and Infrastructure as Code in cloud environments.
Strong analytical, troubleshooting, and communication skills.
Experience operating within formal incident and change management frameworks.

Additional skills – the edge you have

Deep experience with Azure Database for PostgreSQL Flexible Server in enterprise production environments.
Experience with PostgreSQL migration and assessment tooling, including migrations from Oracle and/or Microsoft SQL Server.
Oracle and/or Microsoft SQL Server administration experience.
Experience with PgBouncer and application connection-pooling patterns.
Knowledge of PostgreSQL observability tooling and Azure Monitor integration.
Terraform experience for automated database provisioning.
Experience integrating PostgreSQL with data platforms such as Microsoft Fabric or Snowflake.
Experience establishing PostgreSQL engineering standards, operational runbooks, and production-readiness controls.
Financial services or investment management sector experience.
• Azure DevOps pipeline and Git workflow experience.

What we offer: