OBJECTIVE:

I am a person who enjoys learning new technologies and a good challenge. For me, a good day is being greeted at the door with five problems I have never seen before, all requiring immediate action.

TECHNICAL SKILLS:

Programming languages: Perl, shell (bash, sh, ksh), C, C++, Objective - C, Ruby, SQL

Databases: MySQL, PostGreSQL, Oracle, MongoDB

Operating Systems: Linux, Solaris, MacOS X, FreeBSD

Storage: NAS, SAN, iSCSI, Fibre Channel

Networking: Routers, switches, hubs, firewalls, Juniper, LDAP, NFS, NIS, DNS (BIND), DHCP

Web Tools: Apache, Tomcat, Jboss

Software Development Tools: CVS, Subversion, Perforce, Ant, Maven, Bamboo, Jira, Traq, XCode

Cloud/Virtualization: Amazon AWS, RackStack, VMWare ESX/ESXi, vMotion

WORK EXPERIENCE:

Sr. UNIX Network Administrator

Confidential, Schaumburg, IL

• Performed an in - place re-architecture of the server configuration from multiple single-points-of-failure to a fully load balanced/failover arrangement including using Coyote Point load balancers for web services, and drbd/heartbeat for the database servers and batch process servers.
• Engineered a Nagios monitoring system to provide real time alerts sent to different destinations based on the severity of the problem.
• Installed, configured, and maintained VMWare ESX 3.51-4.0 and built, configured and maintained virtual instances.
• Evaluated, installed, configured, and maintained splunk for advanced log file analysis.
• Administered and maintained Windows 2008 servers running Exchange, Active Directory, and Blackberry Enterprise Server.
• Configured and installed Equallogic iSCSI SANs with cluster writable filesystems.
• Built, installed, and remotely managed servers for Canadian customers.
• Performed performance tuning on Apache web servers.
• Performed performance tuning on MySQL database servers.
• Solved a problem of long period lockouts in the database server.
• Built a read-only replication server for the database system to remove the load of exports and selects from the production server.
• Built a wiki for the use of the development team.
• Wrote shell and Perl scripts to automate operations.

Chief System Administrator

Confidential, Rockford, IL

• Built the managed hosting facility from scratch including acquiring the building, selecting and installing the primary and backup electrical systems, overseeing the building of the HVAC systems, and the provisioning of the OC-12 lines to provide Internet access. Designed and installed the fire suppresion systems. Acquired the routers, switches, hubs, racks, and servers.
• Architected the overall design of the facility network and servers. Also architected server solutions according to customer requirements.
• Developed, and tested corporate disaster recovery plan.
• Trained, mentored, and managed the staff System Administrators.
• Implemented nagios monitoring to assisting in maintaining SLAs.
• Implemented and maintained OpenLDAP servers for single sign on and distributed login purposes.
• Provided Tier II/III technical support for internal/external customers.
• Installed, configured, and maintained virtualized environments with VMWare ESX 3.01-3.51 and Xen.
• Installed, configured, and maintained F5 big-ip load balancers.
• Installed, configured, and maintained Toshiba and Hitachi SANs.
• Implemented Puppet to automate server configurations.
• Installed, configured, and maintained firewalls for servers.
• Installed and maintained shopping cart systems for customers.
• Installed and configured an automated network backup solution.
• Installed and configured XServe servers for area schools.
• Wrote Perl and shell scripts to automate operations.
• Configured and maintained web servers (predominately Apache) for optimal performance.
• Worked with DBAs in performance tuning of MySQL and Oracle servers.
• Installed and tuned Oracle 9i, 10g, and Application server on Sun and Linux servers.
• Installed and administered Tomcat and JBoss on Linux servers.
• Performed remote administration of customer's in-office Windows servers.
• Maintained Juniper routers and firewalls.

Network Engineer

Confidential, Westmont, IL

• Redistributed virtual hosts across the web servers to better handle the load of ten million hits per hour.
• Configuration and maintenance of all servers.
• Installation, configuration, and maintenance of Solaris 7, Solaris 8, and Linux.
• Performed performance tuning of PostgreSQL database servers.
• Installation, configuration, and maintenance of web traffic analysis software systems.
• Maintained, configured, and upgraded Apache on Solaris servers.
• Performed system performance tuning including Solaris kernel tuning.
• Provided in-house technical support of systems and networks.

System Administrator

Confidential, Rockford, IL

• Architected the company's entire server and network infrastructure.
• Installation, configuration, and maintenance of all servers and workstations.
• Wrote and maintained a shopping cart system.
• Configuration and administration of all network services such as DNS, FTP, WWW, etc.
• Performed data conversion from MySQL to Oracle.
• Installed, configured, and maintained the Ascend router.
• Installation, configuration, and maintenance of Oracle 8.0.5 on Solaris 7.
• Installation, configuration, and maintenance of MySQL on AIX.
• Wrote and debugged applications written in C/C++ for purposes such as bulk data load from an external data source, data analysis (data mining), etc.
• Writing shell scripts to automate various tasks like backups, recovery, log file rotation, log file analysis, etc.
• System performance monitoring and tuning.
• Installed, configured, and maintained Apache under AIX and Linux.
• Applied for and installed digital encryption certificates on the web servers.
• Installed, configured, and maintained firewall systems.
• Configured Sendmail for use with multiple domains.
• Configured anonymous FTP.
• Wrote and maintained programs automating tasks such as sending price updates to price tracking sites, bulk loading of inventory items into the database, etc.
• Integrated artist designed pages to the database systems using PHP.
• Troubleshooting hardware and software problems for all servers and workstations.
• Provided technical assistance to customer service department.