Viollet Nsom
SQL Server Database Administrator at FISERV
- Role
- Database Administrator at Fiserv
- Location
- Houston, TX, US
- LinkedIn followers
- 500 followers
About Viollet Nsom
Professional SQL Server Database Administrator with over 8 years of experience…
Experience
Database Administrator
Sep 2023 — Present · US
Situation: The company required modernization to cut cost and boost scalability.Action/Result: Led migration from on-prem SQL to Azure SQL Managed Instances, reducing infrastructure costs by 25% and enhancing performance elasticity.• Situation: High-availability systems required zero downtime.Action/Result: Designed Always On Availability Groups and Log Shipping, achieving 99.99% uptime across production databases. • Situation: Query inefficiencies slowed financial transactions.Action/Result: Conducted query and index optimization, improving performance by 40% on key workloads.• Situation: Manual tasks consumed DBA hours.Action/Result: Automated backups and health checks via PowerShell and T-SQL, eliminating backup failures and cutting manual time by 50%.• Situation: Data security policies required review.Action/Result: Implemented role-based access, TDE, and auditing, reducing unauthorized access incidents and strengthening GDPR alignment.• Situation: Knowledge continuity was lacking among DBA teams.Action/Result: Authored detailed SOPs and documentation, cutting onboarding time for new hires by 30%.• Situation: Fragmented monitoring caused delayed responses to issues.Action/Result: Centralized performance tracking using Azure Monitor and Redgate, reducing mean time to resolution by 35%.• Situation: Backup verification processes were inconsistent.Action/Result: Built automated backup validation scripts, ensuring 100% reliability in restore testing during audits.
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