Lead PostgreSQL Database Administrator

2 months ago

Mississauga, Canada Cognizant Full time

**Lead PostgreSQL Database Administrator**:
At Cognizant, our global community sets us apart—an energetic, collaborative and inclusive work environment where everyone can thrive. And with projects at the forefront of innovation, you can build a multifaceted, rewarding career and draw inspiration from dedicated colleagues and leaders. Cognizant is right where you belong.

**What you’ll do**:

- Install, configure, and maintain PostgreSQL databases, including upgrades, patches, and user roles/security permissions.
- Lead all aspects of database migrations (e.g., Oracle/other RDBMS to PostgreSQL, on-prem to cloud) and manage performance tuning and index management.
- Conduct backup, recovery, PITR, and configure DR replication, streaming replication, WAL replication, and failover.
- Automate tasks with shell scripting, and set up monitoring tools for database health and performance.
- Configure Transparent Data Encryption (TDE) and audit plugins to improve security. - Manage PostgreSQL partitioning, system catalogs, and high availability setups (e.g., Patroni or other 3-node clusters).

**What You Bring to the Role**:

- Proficiency with PostgreSQL installation, configuration, and performance tuning (shared_memory, work_mem, maintenance_work_mem, buffer cache, etc.).
- Experience with backup and recovery tools such as BART, BARMAN, and other PostgreSQL utilities.
- Knowledge of tools like PGAdmin4, PGPool, PEM, ORA2PG for migrations and management.
- Familiarity with disaster recovery and high availability configurations, including streaming replication and Patroni clusters.
- Solid grasp of Linux OS and any major cloud platform (AWS, Azure, Google Cloud).
- Expertise with additional PostgreSQL management tools and cloud platform certifications.

**Working arrangements**:
We strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a remote position open to qualified applicants in Ontario and/or Nova Scotia, where our hubs are located. Regardless of your working arrangement, we are here to support a healthy work-life balance though our various wellbeing programs.

Note: The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

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