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 workplace.

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

📌 Database Administrator (New Delhi)
🏢 Walker Digital Table Systems
📍 New Delhi