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At Cognizant we have an ideal opportunity for you to be part of one of the largest companies in the digital sector worldwide. A Great Place To Work where we look for people who contribute new ideas, experiencing a dynamic and growing environment. At Cognizant we promote an inclusive culture, where we value different perspectives providing career growth and development opportunities. #WelcomeToCognizant!
Job Description: PostgreSQL Database Administrator
About the Role
We are seeking an experienced PostgreSQL Database Administrator to support and maintain enterprise AWS database infrastructure. This role is primarily support and advisory in nature — working closely with application teams to troubleshoot issues, implementing changes, guide migrations, and ensure database stability. The ideal candidate brings deep PostgreSQL architecture knowledge, hands-on AWS experience, and strong operational discipline.
Key Responsibilities
- Administer and maintain PostgreSQL and RDS PostgreSQL instances across dev, test, QA, and production environments
- Support application teams in troubleshooting database issues, replication failures, connectivity problems, and performance degradation
- Assist app teams in resolving AWS DMS issues including task failures, CDC lag, table errors, and cutover coordination
- Deploy and manage database infrastructure using AWS CloudFormation templates
- Monitor database health, set up alarms, and analyze logs using Amazon CloudWatch and CloudWatch Log Insights
- Audit database activity and support compliance reviews using AWS CloudTrail
- Troubleshoot and resolve logical replication issues including lag, slot bloat, and subscription failures
- Manage roles, users, schemas, and privileges across multiple databases and environments
- Tune query performance using execution plans, auto_explain, parameter group optimization, and session management
- Raise, track, and resolve incidents and change requests through ServiceNow (ITSM)
- Perform DBA operations on Linux environments including log analysis, file management, and Shell/Python based automation
- Support SDE/ArcGIS geodatabase environments hosted on Aurora PostgreSQL
- Maintain documentation and runbooks for database operations and incident resolution
- Perform minor and major Aurora PostgreSQL version upgrades including pre-upgrade assessments, snapshot backups, parameter group validation, extension compatibility checks, and post-upgrade monitoring
- Coordinate and document all upgrade activities through ServiceNow change requests with rollback plans and CAB approval
Required Skills
- Strong understanding of PostgreSQL architecture — WAL, MVCC, autovacuum, connection pooling, replication slots and partitioning
- Hands-on experience with AWS DMS — troubleshooting task failures, CDC replication issues, and supporting app teams through migration challenges
- Proficiency with AWS CloudFormation for infrastructure-as-code
- Experience with Amazon CloudWatch — dashboards, metrics, log insights, and alarm configuration
- Familiarity with AWS CloudTrail for auditing API activity and compliance
- Solid knowledge of PostgreSQL security — roles, schemas, privileges, and access control
- Experience with ServiceNow for incident management, change requests, and ITSM workflows
- Comfortable working in Linux environments — log parsing, shell scripting, file operations, and CLI-based database administration
- Ability to write PL/pgSQL, dynamic SQL, and maintenance automation scripts
Good to Have
- Familiarity with SDE/ArcGIS geodatabases on PostgreSQL
- Knowledge of logical replication setup (publications, subscriptions)
- Experience working with CyberArk Vault
Soft Skills
- Strong communicator — able to guide and advise application teams clearly during incidents
- Comfortable working within formal change advisory (CAB) processes
- Self-driven and capable of managing multiple concurrent support requests independently
Why Cognizant?
Improve your career in one of the largest and fastest growing IT services providers worldwide
Receive ongoing support and funding with training and development plans
Have a highly competitive benefits and salary package
Get the opportunity to work for leading global companies
We are committed to respecting human rights and build a better future by helping your minds and the environment
We invest in people and their wellbeing.
We create conditions for everyone to thrive. We do not discriminate based on race, religion, color, sex, age, disability, nationality, sexual orientation, gender identity or expression, or for any other reason covered.
Igualdad de Empleo y Política de Acción Afirmativa:
Cognizant es un empleador que ofrece igualdad de oportunidades. Todos los solicitantes calificados recibirán consideración para el empleo sin distinción de sexo, identidad de género, orientación sexual, raza, color, religión, origen nacional, discapacidad, estado de veterano protegido, edad o cualquier otra característica protegida por la ley.
At Cognizant we believe than our culture make us stronger!
Join us now!
#BeCognizant #IntuitionEngineered
About Cognizant:
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.
Additional employment information
Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.
If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.
