SUMMARY

• Installed and managed several Linux/AIX systems, which include Disk Management, User Management, Network Management, and Performance Management using tools.
• Experienced in monitoring and altering filesystem usage, hardware, and system process failures
• Expertise in installation, configuration of Linux virtual servers using VMware Infrastructure.
• Proficient in providing support on the deployed Linux Servers from both Operating System level and Application level.
• Expertise in implementing, configuring, managing and deploying patches, upgrades, bug fixes utilizing Red Hat Satellite, Spacewalk and SUSE Manager.
• Completed Physical - to-Virtual (P2V), Virtual-to-Virtual (V2V) and Virtual-to-Physical (V2P) migrations of various Linux servers.
• Ability to communicate with all levels of management and the client community.

TECHNICAL SKILLS

Operating System: Red Hat Enterprise Linux (5/6/7), SUSE Linux Enterprise Linux (9/10/11), Ubuntu Linux, Centos (5/6), AIX (5/ 6.1/7.1).

Software Tools: VMware ESXI (4.0/4.1/5.0/5.1 ), HP Open View Monitoring, VMware Hyperic Monitoring, Nagios Monitoring, Tivoli Storage Manager, Netbackup, Centrify.

Hardware: HP BL460C, C7000, ILO, Cisco 6500, IBM IBM x3650 Power (5/6, P550/P570/P770), Dell Power Edge Series

Storage: EMC SAN, VNX, VMAX, Isilon, Net App FAS Solutions 6240, 6040.

PROFESSIONAL EXPERIENCE

Confidential, Hoffman Estates, IL

Sr. Linux/Unix Systems Architect

Responsibilities:

• Configure and manage 5000+ RHEL, Centos and SLES based VMs and standalone servers.
• Manage and support the Red Hat Satellite Server, SUSE Manager and Spacewalk server.
• Supported Cloud based infrastructure including associated open source hypervisors (XEN, KVM)
• Perform DR and failover testing with SAP Basis admins on a quarterly basis.
• Attend project meetings and infrastructure change control meetings to stay abreast of changes that may impact various Linux projects and environments.
• Perform OS upgrades/patching of multiple Linux servers to insure compliance and system integrity.
• Worked with application teams to troubleshoot complex problems that impact our customer’s ability to perform required business functions.
• Implement ITIL practices, implement process improvement initiatives, risk analysis and remediation planning and ensure the proactive monitoring and control of servers to preempt any service outages.
• Establish direction, standards and procedures for environment monitoring and maintenance.
• Manage and perform various day to day systems administration work on Linux serves which include upgrading RPM’s, kernel parameters, configuration of SAN disks, multipathing, user security limits and LVM file systems.
• Experience in creating VM templates & managing virtual machines using the VMware Infrastructure.
• Complete various storage based change controls which required storage resource allocation by requesting LUNS to be provided by the Storage Team.
• Involved in administration and setup of High Availability clusters on RHEL servers using Red Hat Cluster Suite.
• Support ProLiant DL series standalone servers for latest firmware and updates.
• Participate in 24x7 production on-call support and provide technical support to users at remote datacenters .
• Assisted Solaris admins with support of the Sun Solaris environment.

Confidential

Sr. Linux Systems Administrator

Responsibilities:

• Responsible in the design, implementation, and administration of mission critical applications and virtual infrastructure, authentication, and systems management.
• Administer, maintain, optimize, and debug the Linux operating system and its associated software.
• Manage the infrastructure throughout its lifecycle, from provisioning and configuration to orchestration and reporting.
• Support web technologies and services including LAMP, JBoss, Tomcat, Drupal, and load balancers.
• Install and configure Linux virtual servers using VMware Infrastructure.
• Create VM templates & manage virtual machine deployments.
• Perform system trouble-shooting, performance tuning and capacity planning.
• Manage and support the Linux servers in production/stage/development environment.
• Utilize puppet for configuration management.
• Installed firmware upgrades, kernel patches, systems configuration, performance tuning on Linux systems.
• Configured the Splunk forwarder on multiple virtual hosts for logging analysis.
• Converted physical Ubuntu servers into RHEL 6 virtual machines.
• Constant monitoring of system performance using Hyperic monitoring software.
• Proactively maintained systems by timely upgrading patches to the systems and applications, scheduling of batch jobs and cron jobs.
• Install and update packages using YUM and Red Hat Satellite/Spacewalk Server.

Confidential

Sr. Linux/Unix Administrator

Responsibilities:

• Build and support Red Hat Enterprise Linux and SUSE Linux Enterprise servers for the various SAP application environments.
• Perform SAP system monitoring and system configurations according to SAP standards.
• Manage security patching through Red Hat Satellite Server and SUSE Manager.
• Performance tuning of kernel parameters for optimal performance.
• Configure JVM heap configuration and thread pool configuration to performance tune java applications.
• Perform system trouble-shooting, performance tuning and capacity planning.
• Install and configure several hundred Red Hat Enterprise/SUSE Enterprise Linux servers in both physical blade and VMware ESXi virtual environments.
• Create LPAR’s using HMC, assigning CPU, memory, virtual disk, and ether channeling.
• Experienced in DNS, Samba, NFS, LDAP, sendmail, FTP, security management and system trouble shooting skills.
• Installation and configuration of Active Directory Bridging (Centrify) agent and prepared the deployment.
• Utilize Remedy Ticketing System on a daily basis for Incident, work order reports/tickets initiated in response to a customer call or an automated event by meeting the SLA requirements.
• Responsible for generating technical audit reports requested by upper management.
• Monitor system resources, logs, disk usage, utilizing HP Open View monitoring
• Utilized VMware Converter for Physical to Virtual and Virtual to Virtual conversions.
• Plan, test and document Unix Disaster Recovery process.