• Mentored and led the Managed OS teams of 9 members on performing OS-layer engineering and operational projects via Change Management• Managed Golden images of OS via Ansible and GitLab as part of Platform Engineering self-service offerings• Led PI and Scrum ceremonies to achieve continuous improvement• Worked with Leadership on project management and planning via Agile Methodologies / SAFe• Created customized inventory reports in Device42 via DOQL for internal projects and audits purposes• Worked with audit, compliance, and security teams to ensure PCI and SOC audit and security requirements are met• Performed hands-on and on-call duties & tasks on Linux server systems

• Proactively analyzed customers' utilization for opportunities on cost-savings & ROI-improvement• Oversaw prompt investigation/escalation/resolution of ES customers’ cases• Assisted customers on making strategic decisions to grow their business and infrastructure• Built test infrastructure with various AWS services

• Mentored and managed members of both the Enterprise Storage and the Linux Systems Administration teams• Worked with auditors on ensuring all OS-layer audit & compliance requirements are met• Created and maintained automation scripts• Performed hands-on and on-call duties & tasks of the previous two positions as needed

• Mentored and managed Enterprise Storage Administration team members on infrastructure projects and daily tasks• Reduced OpEx by creating & implementing budgetary forecast/plans to improve ROI• Managed relationship with VARs/vendors and conduct proof-of-concept evaluation• Automated repetitive tasks via scripts• Designed and implemented D/R arrangement for various applications• Participated in on-call rotation• Performed configuration on Cisco Nexus switches with FEX modules as needed

• Automated routine/repetitive tasks via scripts in various languages• Configured and maintained approximately 3,000+ web & DBMS server systems as well as BIND DNS zones• Built “TPKG” packages for software management

• Automated and customized installation and configuration of Citrix XenServer and VMware systems• Developed querying/reporting of virtualization data for performing tasks via scripts (bash & Ruby)• Configured and maintained 3,000+ web & DBMS server systems via in-house RPM packages• Performed configuration modifications and maintenance on NetApp storage devices• Configured and maintained OS-bundled software such as BIND, postfix, keepalived to meet application requirements• Configured Netscaler for load-balancing server farm

• Led and mentored systems administrators on projects rolling out Linux systems• Assigned tasks based on priority of projects and availability of group members• Created and maintained documentation for building and configuring systems• Built, configured, and maintained 4k+ servers worldwide utilizing jumpstart/kickstart and in-house configuration tool• Built and configured UNIX systems for the HPOV project using Veritas VxVM, VxFS, and Oracle 8i• Created scripts for automating configuration, performing routine maintenance, and troubleshooting of systems• Supported BIND DNS zones and configuration files and in-house revenue events “journaling” systems• Tuned Sun Microsystems Solaris server systems.• Performed tier-2 on-call duties on resolving daily support tasks via Remedy Action Request system• Built RPM packages for software management

• Built, staffed, and managed the NOC of up to 11 members in 9 months with minimal supervision for 24/7/365 1st-tier monitoring and support on network, server systems, and applications• Held weekly Change Management meetings• Created Standard Operating Procedures for proactive monitoring and support for systems, applications, and network connectivity• Ensured proper escalation of unresolved issues to the appropriate support groups via Remedy• Took ownership of routine and emergency site launches for all front-end serving co-locations from Configuration Management• Maintained monitoring tools for monitoring network devices and traffic via SNMP

Analyzed business processes and requirements, prepared requirement specification and test plan for project, conducted hands-on user-training sessions on new applications

Defined and executed IS/IT strategies, customized and implemented GoldMine Customer Relationship Management system, validated Y2K compliance of equipment, end-user support

Novell NetWare, Microsoft Windows NT Server, Access, Visual Basic, Visual FoxPro, IBM mainframe terminal emulation, end-user support, mentored student interns