Leyi Yang

***** ******** *******, *******, ** ***30 703-***-**** (H) ac6dbp@r.postjobfree.com

LINUX SYSTEM ADMINISTRATOR PROFILE

Worked as Senior Linux Administrator with more than 10 years professional experience in Linux / Red Hat / 5/6/7 in the physical servers, VMs in VMware and AWS/Azure cloud system.

Managed projects for setup AWS and Azure cloud system.

Administrated and Configured the VPN, DNS and ACL in Big IP and BIP-IQ F5 server

Many professional achievements and hand-on experience in setting up Server Virtualization with both Solaris and Red Hat platform.

Strong experience with responsibility for daily support and hands-on troubleshooting for UNIX / Linux system with Satellite and puppet tools.

As a senior system administrator, responsible for assuring secured access, availability and operational improvements for virtual machines on Sun Solaris/Linux servers.

Responsible for performing an update of the UNIX / Linux system from hardware to software, and have developed maintenance, integrity and security UNIX/Linux servers;

Have experience in harden and monitored system via written shell script with Bash, KSH and Perf

Strong skills and experience in developing advanced secure systems.

Senior system administrator experience in Data Backup, especially in Symantec NetBackup and Veeam backup system

EXPERIENCE

Booz Allen Hamilton, McLean, VA

Senior Linux Administrator (Jul, 2008 to Feb. 2018)

Migrated from the Linux physical servers to AWS and Azure cloud system. Planed, designed and built VPC on AWS/Azure system, Setup IDM and NTP VM in AWS and Azure cloud system.

Setup, configure and administrate the Sun Virtualization system with Solaris 9/10/11 server to create Solaris containers to replace old physical systems, Setup and connect SAN with Hitachi Storage server using RAID Technology and Solaris Volume Manager.

Setup, configure and administrate the Red Hat Virtualization system with RHEL 6/7 with puppet tools, Setup and connect SAN with Hitachi Storage server using RAID Technology and Linux Volume Manager.

Daily system administration to support the customers’ 30 servers with Solaris 10 and 11 and Red Hat RHEL 6/7 (include ORACLE database 11g, ORACLE application 12, apache 3.0, ftp, Sendmail 8, DHCP, LDAP, DNS servers)

To harden and monitor Linux and Unix systems automatically using shell scripts written in Bash, KSH and perf

Daily Data Backup administration to backup all center 600 servers, from VMWARE windows, Unix Solaris to Linux boxes using Symantec NetBackup 8 & 9 with Tape Library

Quality Tech, Germantown, MD

UNIX system Administrator (May, 2006 to June, 2008)

Built, configure and manage the Sun Solaris 9/10 server with Solaris containers to replace old systems, Setup the external StorEdge 3310 server using RAID Technology and Solaris Volume Manager.

Provided daily system administration to support the web service on 20 servers with Solaris 9 and 10 (include ORACLE database 10g, ORACLE application 11, apache 2.0, ftp, Sendmail 8, DHCP, LDAP, DNS servers)

Setup and configure the SUN containers servers with Solaris 10 for test and develop use

Plan and design to setup systems disaster recover project for long distant (1000 miles away)

Freddie Mac, Reston, VA

UNIX System Consultant (Sep, 2004 – Apr, 2006)

Install, configure, troubleshoot and maintain UNIX (Solaris), Linux (RH) servers on intranet network using Jumpstart servers

Perform daily system administration tasks. Manage, develop and maintain security solution for harden Solaris servers, including ORACLE 9/10 Database, application, Apache Web servers, SendMail, NFS, DHCP, LDAP, DNS, NIS, VCS server

Develop scripts and programs to facilitate integration of software, develop and conduct operation and integration tests

Daily third level administer, including monitor, configure, maintain, troubleshooting more than 500 Solaris servers with NIS server

EQUANT, Reston, VA

Senior Systems Engineer (March, 1995 to Aug, 2004)

Troubleshooting escalation problems for Multi-server and macro Application problem as third level support

Cooperated with Oracle DBA to perform capacity planning; modify the Shell Script using perl, schedule the crontab, and Oracle/PL/SQL performance

Set up lab for installation and test patches from vendors on software and hardware issues

Set up LDAP/DNS for end-user access server; capacity planning of Oracle Database servers

Setup, updated, maintained DNS on Sun Solaris for portal Web service using HTML, Cold Fusion and Java

PROFESSIONAL TRAINING

Red Hat Virtualization administrator

UNIX system Administration, Solaris Administration advanced,

Linux installation, configuration and support

Cisco Router Software Configurations (Including TCP/IP and WAN)

EDUATION

MS in CSI (1993) George Mason University

B.S. in Physics (1982) Shanghai Normal University

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