Ayo Ajayi
Database Administrator | Always On AG | Performance Tuning | Azure SQL | Postgres | HADR | Automation (PowerShell, DBATools)
- Role
- Database Administrator at Walmart
- Location
- Clarksville, TN, US
- LinkedIn followers
- 500 followers
About Ayo Ajayi
I am a Senior SQL Server Database Administrator with 9 years of enterprise experience architecting, stabilizing, and optimizing high-availability database platforms across on-premises and cloud environments.I specialize in designing resilient, secure, and performance-driven SQL Server ecosystems that support multi-terabyte databases, mission-critical applications, and high-transaction workloads. My focus is on ensuring uptime, performance scalability, automation maturity, and long-term operational stability.Core Expertise:• Always On Availability Groups, Log Shipping, Replication• High Availability & Disaster Recovery Strategy (RTO/RPO alignment)• Advanced Performance Tuning & Query Optimization (30–50% improvements)• Zero-downtime upgrades and cross-version migrations (2016 → 2022)• Automation using PowerShell & DBATools• Enterprise Security: TDE, RBAC, Auditing, Encryption• Azure SQL Database & AWS RDS administration
Experience
Database Administrator
Sep 2020 — Present
Manage and optimize 400+ SQL Server instances across production, QA, and development• Architect and support Always On AG & Log Shipping solutions (99.95% uptime)• Improve transactional throughput 30–50% via query tuning and indexing strategies• Design DR strategies for multi-terabyte databases (up to 5TB) aligned with strict RTO/RPO• Automate patching, monitoring, backups, and inventory using PowerShell & DBATools• Troubleshoot replication latency, deadlocks, blocking chains, and failover issues• Support 50+ annual production deployments with zero rollback events
Education
University of Ilorin, Nigeria
Bachelor's degree, Statistics
Austin Peay State University
Master's degree, Computer Science
University of Ilorin, Nigeria
Master of Business Administration - MBA
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