Years of diverse system administration experience specializing in Linux system administration and Open Source solutions. Proven track record adapting new technologies and meeting strict deadlines in challenging 24x7 production environments. Strong communications and documentation skills with a constant drive to learn and adapt new technologies and accept new responsibilities. All while keeping a sense of humor and the goals in complete focus.

Systems Administrator, Distributed Computing @ From June 2015 to Present (7 months) Sr. Systems Engineer @ From October 2014 to June 2015 (9 months) Sr. Systems Engineer @ • Directly supporting 250+ virtual and physical Redhat Enterprise Linux systems hosting Oracle databases and applications as either a single database instance or clustered in a high availability configurations. • Automating as many systems administration task with a mix of Puppet, Bash and Python scripting. • Directly involved with database migrations and application upgrades of four highly visible business critical systems. • Administered and architected solutions with AWS, VMWare and/or KVM/XEN virtual/cloud environment. • Installed and administered Zebra's first Hadoop clusters utilizing Apache Hadoop and Cloudera for internal businesses units. • Engineered and maintain Zebra’s first Splunk clusters to ingest from 3rd party manufactures and internal departments. • Rolled out enterprise-wide, systems monitoring solution to replace vendor supplied software using the open source solution, Zabbix, providing a much greater insight to individual system health as well as a dashboard view of the production and non-production environments. • Experience configuring F5 load balancers for individual site and application redundancy. • Plan and practice disaster recovery procedures including bare metal recovery, recovery to virtual machines and virtual "bare metal" recoveries. • Participated in after hours, on-call rotation and ServiceNow ticket resolution. From September 2012 to October 2014 (2 years 2 months) Sr. Systems Engineer @ * Primarily responsible for the design documentation, implementation, monitoring, and support of CellTrak's VMware, Linux based private cloud infrastructure and services in the United States, Canada and the UK. * Responsible for capacity planning, performance tuning,measuring and reporting of company SLA's. •Systems design and engineering including networking, security and OS design. •Engineer and support high availability clustered web application and database servers utilizing CentOS / RedHat Clustering suite, Apache, MySQL, VMware and Rackspace. •VMware ESXi4/5 with vCenter 4.x implemented with Vmware high availability. •Effective use of storage using iSCSI SAN’s,Redhat’s GFS2or OSFS2 file systems. •Firewall, application firewall and load balancer administration.•Complete enterprise monitoring with Zabbix From May 2012 to September 2012 (5 months) Senior System Engineer @ • Install, configure and maintain a 8000 core Linux cluster with 15 PB of storage, supporting thousands of users worldwide in quest for scientific discovery. • Primary administrator for complete systems and device monitoring utilizing Zabbix, SNMP and custom scripts. • Developed a web and console-based application that provided power and remote console management for all networked devices. Environment developed with Python, PHP, shell scripts and a MySQL database in a primary/slave back-end for configuration information. • Performance tuning, installation, patching, troubleshooting and repair of all the Intel-based Linux systems. • Ability to troubleshoot technical problems and provide timely responses to minimize downtime and maintain system reliability and availability. • Complete root cause analysis and resolution documentation, • Involved in vendor hardware evaluation and purchases. • Participated in ITIL certification and Change management. • Duties also include help desk ticket resolution, on-call pager rotation and mentoring junior system administrators. From March 2005 to May 2012 (7 years 3 months) Greater Chicago AreaAdjunct Instructor @ * Instructing evening classes at Harper College Tech program, teaching Linux Professional Institute certification courses and Novell's SuSe Enterprise Certified Linux Professional (CLP) certification course. From January 2005 to January 2007 (2 years 1 month) Owner @ * Founded and incorporated Linuxscope Inc. to provide open source solutions for companies in the Chicagoland area. Complete project ownership starting from design, continuing through implementation and documentation. From October 2003 to 2006 (3 years) Greater Chicago Area

Paul Tader is skilled in: Linux, System Administration, RedHat, Solaris, Unix, Cluster, Troubleshooting, Python, Red Hat Linux, MySQL, VMware, Data Center, High Availability, Open Source, CentOS