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SUMMARY:

• I am a senior IT specialist with over 17 years of experience as a UNIX system administrator.
• I have worked on different projects, including enterprise mission - critical applications.
• I am highly skilled in many technical areas, such as Solaris (zoning and Solaris Volume Manager included), Sun servers and storage systems, Confidential and Confidential storage systems, Veritas Storage Foundation (Volume Manager), Veritas NetBackup, Veritas Cluster Server, JumpStart and KickStart, BladeLogic, virtualization with Xen server and VMware, Veritas Backup Exec, SAN, RAID, ZFS, LDom, switches, Linux (especially Red Hat, CentOS), HP-UX, and tape libraries.
• Furthermore, I work closely in various IT management functions, including change management, release management, incident management, problem management, and configuration drift management.
• I also serve as a technical lead for various applications.
• I won high customer satisfaction from user groups.
• I have excellent communication skills and work well independently and in collaboration.

COMPUTER SKILLS:

Operating Systems: Solaris up to 10 and 11 (including zoning), Linux (Red Hat, CentOS, Fedora, SUSE), HP - UX, and Windows

Hardware: Sun servers (Enterprises, SunFires, Confidential - V-, M-, and X-series), Linux servers (IBM, HP, Dell), HP servers, Tape libraries (Sun, StorageTek, IBM), tape drives (DLT, SDLT, and LTOs), storage systems, SAN, and disk arrays ( Confidential Clariion and Symmetrix, Sun StorEdge, Confidential ), switches

Backup: NetBackup, Solstice, TSM, rsync, Legato, dump, tar, cpio

Languages: Perl, Python, C/C++, SQL, Java, FORTRAN, and shells

Utilities: Veritas Storage Foundation, Veritas NetBackup, Veritas Backup Exec, Confidential ControlCenter, Solaris Volume Manager, ZFS, Solstice DiskSuite, XLV, LVM, Symantec Enterprise Security Manager (ESM), Apache webservers, DOWS, CompuLert, Tivoli, Maximo, BladeLogic, IMM, HPSA, PAC2000, Boks/Keon, CMDB, Oracle Enterprise Management, ServiceNOW, CMDB

Networking: TCP/IP, DNS/BIND, NFS, SSH, DHCP, Apache, automounter, NIS, and NIS+, NTP, IP filter

PROFESSIONAL EXPERIENCE:

System Administrator

Confidential, New York, NY

Responsibilities:

• Handling all aspects of IT operations of Confidential and Jobdiva
• Building physical and virtual servers running Linux, Windows, and Solaris as needed
• Handling issues and problems raised by users
• Performing capacity planning and implementation of plans to meet expected growth
• Planning datacenter migration

Senior UNIX Engineer

Confidential, Washington, DC

Responsibilities:

• Working with the rest of the UNIX team to manage a large production Unix/Linux environment
• Successfully executing different SCRs on time and on schedule
• Handling issues raised by users through ITSM system on timely manner.
• Working closely with other teams on system and third party software upgrade.
• Implementing new patching procedure using Red Hat Satellite to significantly reducing time needed for patching
• Patching a large number of Linux servers on monthly basis
• Performing many difficult tasks. Two good examples are items for the sec.gov team. An upgrade was planned and aborted prior to my involvement. After it's assigned to me, I spent a lot of time to prepare, and the upgrade was completed successfully without any issues. This won praises from sec.gov team and upper management. This led them to specifically ask me to handle their next big deployment, which was a total success also.
• Participating disaster recovery planning and exercises
• Interviewing candidates and helping smooth transitions when there’re turnovers on team
• Working closely with the rest of the team for better coverage

Senior UNIX Engineer

Confidential, Northbrook, Illinois

Responsibilities:

• As a member of the life cycle team, working on patching all UNIX and Linux servers, tracking progress, ensuring everything on schedule.
• Using various tools, both purchased and internally developed, such as Oracle Ops Center, ServiceNow, to handle changes on large number of servers.
• Collaborating with stakeholders on changes on servers.
• Supporting the effort of automating shutdown and startup of internally developed applications.
• Participating change management, incident management, problem management, release management, and configuration management.
• Reviewing, evaluating, testing tools from different vendors for the IT management functions listed above.
• Planning requirements and tools for configuration drift management
• Helped preparing golden standard for enterprise-wide computing environment, mainly on the stack from OS to applications
• Making sure all the processes compliant to internal policies
• Being on the on-call rotation

System Administrat

Confidential, New York, New York

Responsibilities:

• Supporting mission critical application (SWIFT) and environment
• Working with stakeholders on specifications of new environment for SWIFT.
• Setting up servers for production, business continuity, disaster recovery, and UAT environments
• Installing various programs on servers, including Veritas Storage Foundation (Veritas Volume Manager), Veritas Cluster Server, NetBackup, among others
• Testing failover from production servers to business continuity servers in cluster environments
• Making sure servers in compliance with internal security policies
• Supporting various servers running Solaris and Linux, working with different teams on trouble-shooting, upgrading, patching, etc.

System A dministrator

Confidential, New York, New York

Responsibilities:

• Environment including BladeLogic, VMWare, Linux (IBM x-series and HP ProLiant series), Solaris, SAN, among others
• Installing large number of Linux/Solaris servers (RHEL 4.x, 5.x, 6) using BladeLogic, Kickstart, JumpStart, xCAT, Vmware, etc.
• Configuring servers according to customer requirements following company processes and making sure server configurations meet company policies
• Using Veritas Storage Foundation for handling new space on various servers
• Installing and configuring NetBackup on new builds
• Working with various stakeholders on requirements, such as upgrading hardware, software, resolving different problems on various Linux/Solaris servers
• Executing long term projects such as upgrading of third party software on Linux/Solaris servers

System Administrator

Confidential, Middletown and Morristown, NJ

Responsibilities:

• Installing operating systems (Solaris and Linux) and other programs on large number of servers (both Sparc and x86) using JumpStart, KickStart, and WANboot. The servers are used by internal users along with the IT staff in dozens of datacenters around the world, many for imaging customer-facing servers (Solaris, Linux, HP-UX, and AIX)
• End-to-end system management and user support of UNIX systems (Sun Solaris, Linux, HP-UX, and SGI Irix)
• Production support of various applications
• Working with various teams to successfully migrate applications from old SGI servers and HP servers to new Sun servers in very tight time frame
• OS installation (including zones) and upgrade, firmware installation and upgrade; system patching
• Security remediation of large number of servers
• Capacity planning regarding servers and storage systems to handle performance and huge amount of data
• Setting up new storage system to meet expected growth; and using Veritas Storage foundation to manage the storage usage
• Setting up private high-speed network to improve NFS performance
• Setting up SAN to improve the usage of existing storage
• Automating regular SA tasks with cron jobs and scripting, especially in Perl
• Software installation, configuration, upgrade, and trouble-shooting, including NetBackup, and Veritas Volume Manager
• Design and implementation of backup environment with large amount of data. By reconfiguring NetBackup, I dramatically reduced the time needed for restoration (hours to minutes) and increased backup throughput
• Backing up large amount of data with NetBackup (restore as required). Environment included multiple master servers, media servers and clients
• Setting up multiple work centers for a three-tiered application, most of time within a week instead of the usual two weeks
• Resolving multiple problems in remotely setting up a work center for two applications overseas
• Single-handedly completing the planning, testing, and deployment of Axent (later renamed Symantec Enterprise Security Manager) and fixing the vulnerabilities on all the servers
• My prompt responses to user requests won high praises from customers and colleagues
• Working efficiently with other teams to resolve technical problems in configuring more than 200 workstations to run multiple applications; this reduced cost significantly