PostgreSQL DBA

Postgres / Cassandra Database Engineer

12+ Months

Location : St. Louis, MO

About You on Postgres Skills

Experience in the design, maintenance, and administration of EDB Postgres, Postgres Distributed and AWS RDS.

Deep understanding of EDB Postgres architecture and internals.

Proficient in PostgreSQL installation and configuration, especially PostgreSQL Plus Advanced Server and Postgres Distributed from EnterpriseDB.

Skilled in PostgreSQL monitoring and alerting tools, particularly PEM. Familiarity with observability tools like Splunk and Dynatrace is a plus.

Experienced in setting up, configuring, and monitoring PostgreSQL binary and logical replication (e.g., Binary Streaming, Bi-Directional Replication - BDR).

Strong skills in collecting diagnostics and tuning PostgreSQL and SQL performance.

Proficient in PostgreSQL procedural languages (PL / pgSQL, PL / Tcl, PL / Perl, PL / Python) and SQL.

Excellent troubleshooting and debugging skills.

Experience in performance tuning and automation for Postgres and AWS platforms.

Proficient in Linux, especially Oracle Linux Enterprise.

Familiarity with scripting languages such as Bash, KSH, and Perl.

Roles and Responsibilities

Excellent interpersonal and communication skills.

Strong collaboration skills to work effectively across cross-functional teams.

Forward-thinking approach to infrastructure automation and scripting.

Ability to work with global teams across multiple time zones.

Self-motivated with the ability to work independently and seek guidance when needed.

Ability to understand application data requirements and recommend appropriate database solutions.

Responsible for designing, deploying, and maintaining EDB Postgres, PGD and AWS RDS database clusters to support large-scale platforms and applications.

Create and manage fully functional database clusters across development, QA, and production environments, with experience in performance tuning.

Review existing configurations and recommend improvements.

Assist with planning and executing Postgres database upgrades and migrations.

Provide day-to-day administrative support and maintenance for Postgres and AWS Aurora databases.

Participate in production support and on-call rotations as needed.

Collaborate with Postgres and cloud vendors and utilize their support channels.

Develop and implement backup strategies, perform upgrades, and apply patches.

Identify inefficiencies and implement optimized solutions.

Design and execute data and database migrations to new hardware or platforms.

Lead best practices and database solution strategies at Mastercard.

Work with management to plan and implement new tools and data services.

Represent Database Engineering in strategic planning and long-term direction.

Support both internal and future cloud-managed Postgres systems, define best practices, and drive automation and innovation.

Collaborate with multiple application teams and developers.

Assist in defining long-term strategic goals for database development in alignment with stakeholders.

On Cassandra Skills Set

Roles and Responsibilities

Design, deploy, and maintain Cassandra clusters across development, stage, and production environments.

Ensure high availability, fault tolerance, and disaster recovery capabilities in Cassandra deployments.

Collaborate with application teams to understand data access patterns and optimize data models accordingly.

Monitor and tune performance of Cassandra clusters, compaction strategies, and read / write throughput.

Develop and implement backup, restore, and archival strategies

Automate operational tasks using scripting languages (e.g., Python, Bash) and infrastructure-as-code tools (e.g., Ansible, Terraform).

Participate in on-call rotations and provide production support for critical incidents.

Define and enforce best practices for schema design, replication strategies, and consistency levels.

Lead efforts in upgrading Cassandra versions and applying patches with minimal downtime.

Collaborate with security teams to ensure compliance with internal and external data protection standards.

Document architecture, configurations, and operational procedures for knowledge sharing and audit readiness.

Required Skills and Experience

Deep understanding of Cassandra internals, including repair mechanisms.

Proficiency in NoSQL and experience with Cassandra drivers (Java, Python, etc.).

Experience with monitoring tools such as Prometheus, Grafana, and DataStax OpsCenter.

Familiarity with multi-region deployments and hybrid cloud architectures.

Strong troubleshooting and debugging skills for distributed systems.

Experience with data migration and integration across heterogeneous systems.

Excellent communication and collaboration skills to work across global teams and time zones.

Preferred Qualifications

Bachelor's degree in Computer Science, Information Systems, or equivalent experience.

Experience with complementary NoSQL technologies (e.g., Redis, MongoDB) is a plus.

Exposure to Kubernetes and Cassandra operators (e.g., Cass-Operator) is desirable.

Best Regards

Account Manager

Global Business Ser 4u Inc.

Mobile : +1 815- 420-3860 | +91 9871345376

Email : Vik@gbs4u.com

Web : www.gbs4u.com

USA : 1755 Park Street, Suite 200, Naperville, IL 60563

INDIA : City Vista Tower A, 4th Floor, Suite A-408 Fountain Road, Kharadi,

Pune, Maharashtra 411014