// Senior MySQL Database Administrator
Databases that stay up when the transactions don't stop.
9+ years administering MySQL, PostgreSQL, and MongoDB across banking, insurance, fintech, and stock-market platforms — currently at Mosambee, on database infrastructure behind live payment processing.
// About
Database administrator with 9+ years keeping production systems available, secure, and fast — from stock-market transaction platforms to bank payment gateways. Currently a Senior MySQL Database Administrator at Synergistic Financial Networks Ltd (Mosambee), working on database infrastructure for live transaction processing. B.Sc. in Information Technology, Nirmala College.
// Experience
Across banking, insurance, entertainment, pharma, e-commerce, and stock-market brokerages — administering 250+ databases from 500GB to 3TB.
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May 2025 — PresentSenior MySQL Database AdministratorSynergistic Financial Networks Ltd (Mosambee)
Database infrastructure for live payment transaction processing.
PaymentsProduction -
Jan 2024 — Apr 2025MySQL Database AdministratorHexaware Technologies
Production, UAT, and development database administration across client environments.
Multi-clientProd / UAT / Dev -
Jan 2022 — Jan 2024MySQL Database AdministratorUpstox
Stock-market transaction databases, secure transactional environments, and PII data handling.
Stock marketPII data -
Sep 2021 — Jan 2022MySQL Database AdministratorEuronet Worldwide
Transactional and payment gateway databases for a major bank.
Payment gatewayBanking -
Nov 2017 — Sep 2021MySQL Database AdministratorNetmagic Solutions (an NTT Data company)
Multi-domain client databases — banking, finance, insurance, entertainment, pharma, e-commerce.
Data-centre scaleMulti-domain
// What I actually do
Reliability & DR
- 24×7 support on AWS RDS, Aurora, MySQL 5.7/8.0
- Resolved GTID_PURGED and primary-key enforcement errors during a full environment restore
- Planned and ran DR drills — switchover & switchback
- Pruned binlog backups across 450+ GB and 50,000+ files without breaking point-in-time recovery
Performance & automation
- Diagnosed a replica load spike traced to a self-join query missing an index hint
- Batched a 270K-row production update with replica-lag-aware throttling
- Tuned parameters for faster dump restoration
- Automated routine operations via cron, shell, and schedulers
Security & operations
- Built a PII-masking script covering 400+ tables, isolating 180+ sensitive columns
- Generated migration SQL from environment schema diffs, catching drift before release
- Server hardening and privilege provisioning per client policy
- New environment setup under tight timelines; Jira / ServiceNow ticketing
PostgreSQL
Authored an HA topology implementation guide — primary + hot standby, WAL streaming replication, and PgBouncer transaction pooling behind a FastAPI read/write split.
MongoDB
Rewrote the upgrade runbook for a 5-node replica set through a mixed-version 7.0 → 8.0 rolling upgrade, plus indexing strategy and backup validation.
// Toolbox
Databases
Cloud & infrastructure
Automation & monitoring
OS & ticketing
// TODO:Currently expanding into AWS cloud certifications and PostgreSQL specialization.
// Education & certifications
- B.Sc. Information Technology — Nirmala College, 2016
- H.S.C. — Patkar College, 2013
- S.S.C. — St. Francis High School, 2011
- Oracle Database 12c: Administration Workshop — 2019
- ITIL Foundation Certificate in IT Service Management — 2017
- Advanced Excel Workshop — 2018
- Employee of the Quarter, Jan–Mar 2019
// Get in touch
Open to conversations about database reliability, migrations, or your team's data infrastructure.