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Donald Sparish
Senior Linux/Unix Systems Engineer specializing in automation, SRE, and enterprise operations
Plymouth, MNApplication System Engineer15 years experienceSeniorFinancial ServicesHealthcareEducation
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About
AIX/IBM Power Systems engineer with hands-on production performance troubleshooting (NMON) and operational administration across VIOS/HMC/LPAR/DLPAR. Has implemented enterprise patching and security remediation using NIM (e.g., OpenSSH vulnerability) and built automation to generate and curate weekly AIX images for the NIM environment.
Experience
Application System EngineerNBS
Systems Operation EngineerWells Fargo
Senior Linux Systems AdministratoreTeams Inc
Senior Linux System AdministratorOATI
Senior Linux/AIX System EngineerChristopher and Banks
Senior AIX System EngineerVeritas Inc
Linux/Unix System AdministratorTeksystems
Linux System AdministratorCapella University
AIX System EngineerBoston Scientific
AIX System EngineerSt Catherine University
Education
National American Universitybachelor, Management (2007)
Key Strengths
- Resolved AIX production performance incident by adding memory, tuning Oracle cache to reduce swap, and optimizing drive layout
- Uses NMON to identify system bottlenecks during performance troubleshooting
- IBM Power provisioning experience using VIOS for storage/network and HMC for LPAR creation and storage assignment
- Enterprise patching execution using NIM to deploy OpenSSH security fixes across affected systems with scheduled reboots
- Built automation to create weekly AIX images and publish only successful builds into NIM
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