12+ years keeping mission-critical systems running at 99.99% uptime — from on-prem Linux clusters to multi-cloud PostgreSQL fleets and enterprise database administration.
Manage 200+ PostgreSQL, MySQL, and Oracle databases totalling 85TB across on-prem and AWS. Reduced query response times by 40% via index tuning. Designed disaster recovery with 15-min RTO.
2016–2021
Linux Systems Administrator
ADNOC Digital · Abu Dhabi, UAE
Administered 120-node RHEL cluster for oil-field monitoring systems. Implemented Ansible automation reducing provisioning time from 8 hours to 20 minutes. Achieved 99.99% uptime SLA.
2012–2016
IT Systems Engineer
du Telecom · Dubai, UAE
Deployed and maintained VMware vSphere clusters for 400+ VMs. Led migration from Windows Server 2008 to 2019. Managed Active Directory for 6,000 users.