Role Summary
We are seeking a highly experienced Senior Database Administrator with deep, hands on expertise across both MongoDB and PostgreSQL platforms. The successful candidate will own database reliability, performance, security, and scalability across mission critical production environments, taking full responsibility for administration, architecture decisions, high availability design, and disaster recovery readiness. This is a dual platform role requiring genuine depth in both NoSQL and relational database ecosystems, not surface level familiarity in one propped up by the other.
Key ResponsibilitiesMongoDB
Administer, monitor, and maintain MongoDB environments across development, staging, and production
Design and manage replica sets and sharded cluster topologies for high availability and horizontal scalability
Own backup and restore strategy, including point in time recovery, and validate recovery procedures regularly
Plan and execute database patching and version upgrades with minimal downtime
Administer and operate MongoDB Ops Manager for fleet monitoring, automation,



and backup orchestration
Diagnose and resolve replication lag, shard balancing issues, and index inefficiencies
Own internals level troubleshooting including WiredTiger storage engine behaviour, oplog sizing, and write concern tuning
PostgreSQL
Administer PostgreSQL instances across the full lifecycle, from provisioning to decommissioning
Design and implement high availability and clustering solutions (e.g. streaming replication, Patroni, Pgpool, or equivalent)
Configure and manage monitoring tooling to proactively identify performance degradation and capacity risks
Own backup and restore strategy including physical and logical backups, WAL archiving, and point in time recovery
Execute patching and major/minor version upgrades with a tested rollback plan
Write and optimize SQL and PL/pgSQL for performance tuning, troubleshooting, and support of application teams
Cross Platform Responsibilit

📌 Senior Database Administrator (Bengaluru)
🏢 GSSTech Group
📍 Bengaluru