Manager Management

**** ******* ** #*** 303-***-**** / 760-***-****

Vista CA 92081 ********@**.***

C H A N G K I M

Creative and driven management professional with 12 plus years track record providing innovative cost effective technological solutions using open source solutions for enterprise level problems.

Qualifying experience in managing and leading technical teams, system administration, network/server/storage infrastructure, project management, hardware/software solutions and management/maintenance.

Hands on leadership style with emphasis on communication, team building and performance to direct, mentor and assist teams toward performance excellence, providing a solid base for succession and growth.

Exceptional experience implementing teams, systems, policies, procedures and documentation with an emphasis on efficiency, cost savings and ease of management.

SONY NETWORK ENTERTAINMENT / SAN DIEGO, CA

SENIOR UNIX/STORAGE SYSTEMS ENGINEER

June 2012 – Mar 2013

• Worked as lead for all backups for RHEL Servers, Security and compliance data, Oracle RMAN, OLTP servers, NDMP sources, warehouse to Quantum i500 and STK SL3000 libraries using NetBackup 7.x master server and several media servers.

• Administration and management of over 2000 xen virtualized servers in several different environments. As well as hundreds of physical servers in HP BladeCenter and rack mounted servers. Servers range from iSCSI boot to Veritas VxFS and Clusters.

• • Administration of Oracle database servers with EMC PowerPath and Oracle ASM using CX3, VNX, and VMAX backend storage. NFS mounts from NetApp, DataDomain, Isilon and ZFS appliance.

• One of two senior storage engineers managing nearly 5 PB of data from NAS, CIFS, NFS, iSCSI, and FC storage. Responsible for performance tuning, network performance over 10Gb fibre and LACP/VCP, and Infiniband for the Exadata warehouse.

• Support production database administrators and business intelligence groups with system and kernel tuning. Assist with RMAN, RAC cluster, GoldenGate, and Exadata expansion.

• Implemented rollout of Oracle ZFS 7420 for warehouse backups. Installed STK SL3000 library and Netbackup media servers to accomplish near 5 TB/hour of backups.

• Monitor systems and storage using cacti, nagios, splunk, check_mk, and home grown applications to ensure integrity of systems and hardware.

SERVICE MAGIC / GOLDEN, CO

MANAGER UNIX SYSTEMS AND NETWORKING

September 2010 – May 2012

• Worked as a technical manager of a team of systems and network admins (3), Oracle database administrators (3), and change management staff (2) in an Agile software development shop with a weekly release.

• Administration and management of all development and production servers and network of a profitable wing of IAC. Supporting a 7x24 production website, databases and ancillary systems as well as the Development and QA environments and remote Disaster Recovery site.

• Administration and support to update all web servers, application servers, and Oracle databases running on commodity HP and Dell servers up to Oracle M5000 servers in Veritas Clusters and projects moving PBX to Asterisk/SIP platform

• Network Administration for corporate and web presence using Cisco ASA firewalls, Cisco IPS (MARS), routers, switches and Foundry ServerIron load balancers. Utilized open source tools like NetDisco, NfSEN, NTOP, Radius, Cacti, Nagios, and IpPlan to manage network. Built out the campus wireless using Aruba Networks for 1000+ users.

• Administration and management of all storage for production, qa and development Oracle database environments. Architected moving older Hitachi SANs behind Netapp vFiler . Hitachi 9570, AMS 500, AMS 2100 and NetApp 3140 and v3240 SAN as well as numerous NAS devices

• Completed move of DR site from Denver to Lenexa KS, building out additional infrastructure for Exchange 2010 upgrade, web presence, GSLB DNS testing, and email campaigns.

WILDBLUE COMMUNICATIONS (ACQUIRED BY VIASAT 12/2009) / DENVER, CO

SENIOR NETWORK MANAGER SYSTEMS ENGINEER

January 2010 – September 2010

• Maintain home grown, acquired & purchased Fault and Performance management systems--to include, evaluating, installing, testing and deploying vendor upgrades and implementation of monitoring points and thresholds

• Maintain a share of the existing code base for internally developed applications. This includes development of new features and new applications as well as fixing problems in the existing deployment

• Deploying production software applications including the establishment of development, test and production implementations for a given system

• Strong working knowledge of Nagios, Groundworks, Hyperic, Cacti, NfSEN, Zenoss and other monitoring applications

• Experience with supporting and writing code to work with IBM OmniBus/NetCool, Proviso, ITNM and InfoVista

MANAGER, TIER 3 NETWORK OPERATIONS

January 2009 – January 2010

• Technical manager of six supervisors and 20 technicians in a 24x7 environment where Tier 3 owned the systems and network infrastructure

• Identified, developed and maintained NOC operating processes

• Provided direction, guidance and leadership to the Tier 3 technicians and supervisors

• Controlled work schedules, duty assignments and time-off requests and budgets for Tier 3 department to include interface with vendors

• Facilitated training and skills development for the Tier 3 staff and brought Tier 4 tasks in with training and documentation

• Made decisions regarding priorities, best practice methodologies and operational execution

• Monitored and managed compliance with established policy & procedural standards

• Managed working relationships with other business units and maintain effective cross-functional communications

• Maintained a service oriented culture that's focused on problem prediction, detection and resolution

• Led 'Post-Mortem Analysis' meetings following major events, provided RCA to vendors and managed SLAs for network and systems availability

• Managed daily Prod Ops Sync-up meetings for VPs, CEO and other organizational heads.

TIER 4 UNIX SYSTEMS ADMINISTRATOR

May 2008 – December 2008

• Provided UNIX and storage support in the T4 Systems Engineering group for Solaris 8-10 servers, Oracle databases, network protocol software, and proprietary billing and customer management systems.

• Support for production, back office, development and staging environments

• SAN support for EMC CX500, CX340 and AX100 storage as well as direct attached Sun arrays

LONG VIEW SYSTEMS / DENVER, CO

UNIX SYSTEMS ADMINISTRATOR

May 2007 – May 2008 ( 1 yr contract)

• Provided senior level UNIX and storage support for the Denver branch of a Canadian oil company.

• Support for Red Hat Enterprise Linux (RHEL server and workstation), Solaris 9/10 SPARC and AMD 64, Oracle 9i/10g, HP-UX servers, HP DL servers, HP Bladeacenter and Sun M5000 and x4100 series servers.

• SAN administration using EMC and NetApp filers supporting over 2 PB of data. Responsible for storage allocation, management, and upgrades

SERVICE MAGIC / GOLDEN, CO

UNIX/ WINDOWS SYSTEMS AND NETWORK ADMINISTRATOR

October 2005 – April 2007

• Administration and management of all development and production servers and network of a profitable wing of IAC. Supporting a 7X24 production website, databases and ancillary systems as well as the Development and QA environments and remote Disaster Recovery site.

• Administration and updates for all web servers, application servers, and Oracle databases

• Support for Windows System Administration (Active Directory and Exchange 2003) as needed

• Network Administration for corporate and web presence using Cisco PIX/ASA firewalls, routers, switches and Cisco CSS load balancers.

• Converted web server platform from Sun/Solaris to CentOS, and migrated firewalls from Cisco PIX to ASA platform

• System support for 600 employee company at campus and multiple remote locations

POPLOGIC ASC Hosting / TULSA, OK

SYSTEMS ADMINISTRATOR – CONSULTANT

March 2004 – March 2007

• Optimize servers to yield higher performance and availability.

• Provide continued maintenance and monitoring Linux and Windows 2000/2003 operating systems.

• Maintenance of over 1200 sites that ranged from basic catalog sites to e-Commerce sites built in ASP.NET and MS SQL 2000 databases. Supported Ensim web platform for Apache, MySQL and PHP based sites.

• Patching and administration using Red Hat up2date, yum, MS SUS, and backup scripts.

VIAWEST INTERNET SERVICES / DENVER, CO

HOSTING PRODUCTIONS MANAGER

July 2000 – October 2005

Started in Tier 1 and quickly moved up to supporting entire hosting platform within 5 months. Continued to progress and lead in each department and becoming one of a pair of Senior Solutions Engineers. Moved into the Hosting Productions Manager position and peer lead the entire hosting platform and supervised all of the deployments of managed hosting servers in a data center environment.

Respond to customer inquiries (internal and external), manage vendors, RMAs, product lines, and systems health for the deployed server infrastructure. Worked a $20k refund and discounted recurring payments to Red Hat entitlements. Managed server assembly, configuration, and troubleshooting for all RHEL and Windows server deployments.

Managed server hardware orders, supply chain, and continued venfor management from SuperMicro to Dell for different server offerings

Training and documentation support for Tier1, Solutions Engineers, Hosting Staff, and Sales teams

References available upon request

TECHNICAL SKILLS MATRIX ::

OPERATING SYSTEMS: Windows 2000/2003/2008, 7 Solaris 8-10 OpenSolaris Linux (RHEL 4-6, Ubuntu, CentOS) MAC OS 7 - OS X

STORAGE AND BACKUP: NetApp EMC VMAX, VNX, CX4, Celerra Hitachi Thunder, AMS 500, AMS 2000 Isilon DataDomain Exadata ZFS Appliance NetBackup 4.0-7.5 STK SL3000 ADIC Quantum SpectraLogic

SERVER AUTOMATION AND DEPLOYMENT: cfengine Puppet Webmin Custom scripts Jumpstart Kickstart Cobbler

SOURCE CONTROL MANAGEMENT AND CHANGE MANAGEMENT: CVS SVN Git Mercurial Hudson/Jenkins Maven Foreman Anthill Perforce

PROGRAMMING AND SCRIPTING: Python PHP Perl Ruby Shell/BASH Scripting XML SOAP HTML Java

WEB APPLICATION/SERVICES: Apache Tomcat JBoss Weblogic Glassfish IIS memcache Oracle Coherence

DATABASE AND BI SUPPORT: Oracle MySQL PostgreSQL MS SQL GoldenGate Informatica OBIEE Discoverer

NETWORKING: Cisco Juniper F5 Brocade Routers L2/L3 Switches Cisco & Juniper Firewalls Foundry Load Balancers IPSec VPN Fibre Channel Switches (McData, Brocade) Terminal/Console Switches Out of Band Network for Servers iLOM, XSFC, iLO, DRAC)

WEB AND VIRTUALIZATION MANAGEMENT APPLICATIONS Ensim cPanel Plesk Xen VMWare vSphere, ESX, ESXi, Fusion KVM Solaris Zones/LDOMS VirtualBox

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