Database Administrator

Walker Digital Table Systems, LLC

Location: New Delhi, Delhi, India
Job type: Full-time

Required skills

Python
communication skills
database
DevOps
GitHub
Jenkins
Kafka
Linux
PostgreSQL
production support
RHEL
team collaboration
Vault

About the role

Walker Digital Table Systems, LLC

Website: wdtablesystems.com
Job details:

Role Summary

Walker Digital Table Systems (WDTS) is looking for a PostgreSQL Database Developer with 3–4 years of experience to join the Platform Engineering Database Team. The role involves supporting mission-critical PostgreSQL databases powering the Perfect Pay platform by contributing to database development, administration, performance tuning, reporting, automation, and production support in a high-availability environment.

Key Responsibilities

Develop and maintain SQL, PL/pgSQL procedures, functions, triggers, views, and optimize database queries.

Develop and maintain JasperReports for operational and business reporting.

Support both OLTP and reporting database workloads to ensure optimal performance and availability.

Develop Shell and Python scripts to automate routine database administration, monitoring, and reporting tasks.

Monitor database health, troubleshoot performance issues, and provide production support.

Collaborate with Development, DevOps, and Platform Engineering teams to support database deployments and application releases.

Maintain operational documentation and contribute to continuous improvement through automation and best practices.

Required Qualifications

Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.

3–4 years of experience in PostgreSQL database development and administration.

Strong knowledge of PostgreSQL, SQL, and PL/pgSQL.

Experience with query optimization, database performance tuning, backup & recovery, and replication concepts.

Experience with JasperReports and report development.

Proficiency in Shell and/or Python scripting.

Working knowledge of Linux (RHEL/Rocky).

Good analytical, troubleshooting, and communication skills.

Preferred Skills

Exposure to PostgreSQL high-availability solutions such as Pgpool-II, PgBouncer, or pgBackRest.

Familiarity with GitHub, Jenkins, and CI/CD-based database deployment processes.

Knowledge of Liquibase or Flyway for database version management.

Exposure to Kafka, HashiCorp Vault, or cloud-based PostgreSQL environments is an added advantage.

Technical Stack

Database: PostgreSQL

Languages: SQL, PL/pgSQL, Shell, Python

Reporting: JasperReports

High Availability: Replication, pgBackRest, Pgpool-II, PgBouncer

Operating System: Linux (RHEL/Rocky)

DevOps: GitHub, Jenkins, CI/CD

Additional Technologies: Liquibase, Flyway, Kafka, HashiCorp Vault

Key Competencies

PostgreSQL Development & Administration

SQL & Query Optimization

Database Performance Tuning

Production Support

Automation & Scripting

Reporting & Analytics

Problem Solving & Troubleshooting

Team Collaboration

Continuous Learning & Ownership

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Database Administrator

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