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Macdonald Alechenu

@macdonaldalechenu

Database Administrator specializing in SQL Server, Azure, and high-availability disaster recovery for mission-critical systems.

United States

Message

What I'm looking for

I’m looking for a Database Administrator role where I can manage SQL Server at scale, automate patching and backups, and drive secure HA/DR and cloud migrations in a collaborative team.

I’m a results-driven Database Administrator with 5+ years administering and provisioning SQL Server environments across Production, Test, Development, and clustered infrastructures. I install and configure SQL Server, perform upgrades and patching, and deliver performance tuning using T-SQL and native/third-party tools, while managing security through least-privilege access and database security best practices.

I’m especially strong in High Availability and Disaster Recovery—implementing Always On Availability Groups, log shipping, listener configurations, and backup/restore processes (including database refresh). I also automate operations with SQL Server Agent and PowerShell, support developer and project teams, manage SSIS package deployments, and help drive migration work such as moving from Oracle to SQL Server using SSMA—while maintaining clear documentation and a reliable change-control process.

Experience

Work history, roles, and key accomplishments

Current

Database Administrator

Current

Haworth

Jan 2024 - Present (2 years 6 months)

Administers and supports 90+ SQL Server instances across development, test, and production. Installs/configures SQL Server, performs upgrades from 2017 to 2022, and implements HA/DR solutions such as Always On Availability Groups and log shipping, including backups/restores, tuning, security, and automation via SQL Agent and PowerShell.

SQL Server Administration Log Shipping Disaster Recovery High Availability Backup Database Restores Database Refresh T SQL SQL Tuning Query Optimization Database Security Least Privilege SQL Server Agent PowerShell Automation Migration SQL Server Migration Assistant for Oracle ServiceNow

Database Administrator

UnitedHealth Group

Aug 2022 - Jan 2024 (1 year 5 months)

Performed SQL Server health checks and monitored database performance, addressing integrity, blocking/deadlocking, connectivity, security, and index management issues. Configured and managed Always On Availability Groups with replication, failover policies, and listener configurations, and automated upgrades, patching, backups/recovery, and SSIS package deployment.

SQL Server Administration Performance Monitoring Blocking and Deadlock Resolution Connectivity Issues Database Security Index Management Replication Failover Policies SQL Server Upgrades and Patching Backup SSIS Package Import Export Deployment

Database Administrator

Allied Universal

May 2021 - Aug 2022 (1 year 3 months)

Monitored SQL Server activity, created and maintained databases for development, testing, education, and production, and executed backups with disaster recovery and database refresh processes. Administered database security and implemented encryption (including TDE and Always Encrypted), wrote and optimized complex T-SQL queries, automated server tasks with PowerShell, and supported users through