Emmanuel Ajayi

Senior Linux Systems Administrator with 10+ years of experience managing enterprise Linux environments (RHEL, CentOS, AlmaLinux, Ubuntu) and AWS cloud infrastructure. Skilled in automation using Bash scripting, system performance optimization, and maintaining high-availability environments.

Senior Linux Systems Administrator at Catalent Pharma Solutions (2020-04 – Present)

• Managed and supported Linux servers (RHEL, CentOS, AlmaLinux) in production
• Provisioned and managed AWS EC2, EBS, and IAM
• Automated tasks using Bash scripting and cron
• Performed patching using Katello, Spacewalk, Foreman
• Monitored systems using Nagios and Splunk
• Configured Apache, NFS, FTP, MySQL, Tomcat
• Managed users, permissions, and authentication (LDAP/IAM)
• Implemented LVM and optimized filesystems
• Conducted vulnerability scans using Nessus
• Supported VMware environments
• Resolved production incidents and maintained SLAs

Linux Systems Administrator at Merck & Co. (2014-06 – 2020-04)

• Managed RHEL and Solaris systems
• Automated installations using Kickstart
• Performed performance tuning and capacity planning
• Provisioned AWS EC2 and Route 53
• Configured DNS, DHCP, TCP/IP
• Managed backups and recovery
• Maintained security policies and system hardening
• Managed LVM and NFS storage
• Supported VMware virtual machines

Bachelor of Science in Biology – Howard University