Sudesh Rokaha

Database Administrator with 9+ years' experience across Oracle (including Exadata and Oracle MAA), SQL Server, PostgreSQL and Vertica, spanning government, IT services and US healthcare environments. Proven track record maintaining 99.9% database availability year-round for a HIPAA-regulated US healthcare organisation, coordinating with global teams across the US, India and Nepal on incident and change management. Deep hands-on expertise in Oracle upgrades and migrations, Data Guard/GoldenGate high availability, Exadata Platinum Patching, disaster recovery design (including post-earthquake DR builds for government infrastructure), and database provisioning/masking via Delphix.

Strong SQL Server administration background using Redgate, Idera, Commvault and Rubrik. Recently completed a Master of Information Technology (Whitecliffe, NZ) with a thesis on Zero Trust access control, and built practical Azure SQL Database and Azure SQL Managed Instance labs.

Oracle Certified

Professional (OCP) and OCI Foundational certified, currently for DP-300 Azure Database Administrator Associate certification deepening Azure SQL Database vs Managed Instance expertise and infrastructure administration skills through a self-built lab and looking for a role that puts this enterprise DBA experience to work with room to grow.

Principal Database Administrator - Infinite Computer Solution (Cotiviti vendor)

(2024-01 - 2025-07)

Promoted to Principal Database Administrator supporting Cotiviti as a vendor-side lead, retaining full end-to-end Oracle and SQL Server administration, performance tuning, patching, high-availability and automation responsibilities.

• Took a lead role in production outage response, driving rapid diagnosis and resolution of critical database incidents.
• Mentored and upskilled junior database administrators on troubleshooting, configuration, upgrades and installation.

Enterprise Database Administrator - Cotiviti (US Healthcare)

(2019-01 - 2024-12)

Administered and maintained 50+ databases across 20+ SQL Server and Oracle instances (including Exadata) spanning 5+ production environments, maintaining 99.9% database availability year-round for a HIPAA-regulated US healthcare organisation.

• Monitored database performance around the clock, proactively identifying and resolving issues; supported Oracle and SQL Server using Redgate, Idera, Commvault and Rubrik storage.
• Coordinated with global teams across the US, India and Nepal on change tasks, incident management and day-to-day operational support; configured jobs/scripts for proactive alerting.
• Rapidly provisioned databases for development and testing using Oracle ZFS and Delphix across SQL Server and Oracle, including Delphix-based data masking.
• Coordinated with Oracle Global Support on Platinum Patching for Exadata, and led migration of databases from non-Exadata machines to Exadata boxes.
• Configured and installed Oracle Maximum Availability Architecture (MAA) environments, implementing Partitioning, Advanced Security, Active Data Guard, Advanced Compression and GoldenGate (HA / unidirectional / bidirectional).
• Reviewed SQL/PL-SQL and T-SQL code for performance issues and guided developers on query tuning for optimal performance.
• Developed shell scripts for automation and backups; designed and implemented data management processes covering security, lifecycle management and operational readiness.
• Resolved incidents within SLA across Oracle, SQL Server, PostgreSQL and Vertica; reduced average query runtime through execution plan analysis and indexing strategy.
• Completed 20+ successful database restore and disaster recovery tests as part of quarterly audit requirements, validating recovery point/time objectives (RPO/RTO).
• Helped and guided junior team members with troubleshooting, configuration, upgrades and installation; gained working exposure to OCI and Azure.

Database Administrator - Masovison Technology - assigned to FCGO Nepal

(2018-01 - 2019-12)

• Upgraded Oracle databases from 10g to 12c, including migration to Pluggable Database (PDB) architecture, for the Financial Comptroller General Office (FCGO) Nepal.
• Administered AIX servers hosting Oracle databases and performed WebLogic application server administration.

Database Administrator - Professional Computer Solution - assigned to IRD Nepal

(2015-01 - 2018-12)

• Upgraded Oracle databases from 10g to 11g for the Inland Revenue Department (IRD) Nepal.
• Designed and implemented multiple disaster recovery setups following the 2015 Nepal earthquake, including for the Government Integrated Data Center (GIDC).
• Performed database administration and performance tuning for large-scale government revenue systems.

Master of Information Technology - Information Technology - Whitecliffe College, Auckland, New Zealand (2024-01 - 2026-01)