Bill Wenjian Yang
Address: Mt. Waverley, Vic. 3149 Australia | Mobile: 0407 552148 | e-mail: byang@abisystems.com.au
Experience Overview

Extensive experience in implementing, supporting and administering Linux, Unix(Solaris) and
Windows servers in an Enterprise environment

Extensive knowledge and experience with system and network security configurations

Proficiency in writing scripts in Unix shells, Perl, Expect and JavaScript

Expertise in system backups and disaster recovery

Well developed skills in managing Active Directory, Apache Web server, Apache Tomcat,
Firewall, SELinux, DNS server, DHCP, Mail server, proxy server and MySQL database system

Experienced in TCP/IP networking and network management systems (ehealth, Nagios)

Strong commitment to customer services

Working experience of ITIL(BMC Remedy product)

Ability to write technical reports and documentation
Skill Summary



Operating Systems: Linux(Red Hat), Solaris, Windows server 2003 & 2008, VMWare ESXi,
Software Applications: Apache web server, Apache Tomcat, Postfix, BIND DNS, Squid,
MySQL, Samba, SSL, Nagios, WordPress, Active Directory, Microsoft Office
Programming Languages: Unix shells, Perl, PHP, SQL, Expect, Javascript, CSS
Qualifications and Certifications
2014
Red Hat Certified Engineer for Red Hat Enterprise Linux 6
2013
Red Hat Certified System administrator for Red Hat Enterprise Linux 6
2004
SUN Certified Network administrator for Solaris 8
2002
SUN Certified System administrator for Solaris 8
2000
Microsoft Certified System Engineer for NT4
1998
Master degree in Computer Systems Engineering
Swinburne University of Technology
Victoria, Australia
Employment History
January 2014 – Present
System Administrator/Consultant
ABI Systems Pty Ltd
ABI Systems Pty Ltd has extensive experience in developing and providing web based software
applications to educational institutions, especially student reporting systems in both mainstream and
special needs schools. ABI also specializes in student welfare software and student survey software
suitable for special needs students.
Responsibilities and Achievements:








Remotely built Linux servers (CentOS 6.5) using Red Hat Kickstart installation
Configured firewalls and hardened Linux servers using ACL, SELinux, Snort, IPtables etc.
Installed and configured MySQL, Apache SSL web servers and mail servers (Postfix)
Designed and Implemented system backups and disaster recovery plans
Fine tuning MySQL servers and Apache web servers for optimal performance
Actively monitored system security services, investigated and resolved system security issues
Deployed critical security patches, software updates and system monitoring tools
Created and maintained automated jobs for database backups and systems synchronization
March 2002 – November 2013
Technology Specialist
Enterprise Management Services
Telstra Corporation
Responsibilities and Achievements:
Provided advanced technical support for over 150 Solaris Unix, Linux and Windows servers











Built, configured and supported Linux/Unix servers in a large scale and complex IT environment
Installed, configured and maintained Windows 2003 and 2008 servers for 500+ Telstra staff
Managed domain user accounts, computers, and security groups via Active Directory
Maintained daily system backups, software updates, system and security patching
Enhanced systems security by deploying Sun Security Toolkit software and other tools such as
ACL, SELinux and TCP Wrappers. Configured firewall on all production Red Hat Linux servers
Developed and deployed Perl and Unix shell scripts for systems monitoring and automations
Collaborated across various Telstra departments and vendors to resolve ongoing issues and
systems and applications upgrades
Proactively monitored and analyzed system performance (using Nagios and ehealth) to identify
systems bottlenecks and to prevent system failures, resulting in significantly reduced system
downtime
Implemented, monitored and audited systems security configurations
Configuration and support of DNS servers, proxy servers, DHCP and Apache web servers
Participated in server infrastructure design, including capacity planning, disaster recovery,
application clustering, and failover/redundancy capability of core services
January 1997 – February 2002
Technology Specialist
Access & Data Systems
Telstra Corporation
Responsibilities and Achievements:




Developed and supported Dial-IP Network Management System
Configuration and maintenance of Sky-Connect Network Management System
Provided technical support for Dial-IP and Sky-Connect NMS to Telstra Operational Groups
Involved in project management of Dial-IP and Sky-Connect Network Management Systems
development


Produced technical design and operational support documentation
Developed a script which was used to back up configuration files from over 200 routers and
switches to a central server
June 1994 – December 1996
Programmer
Call Network Management Systems
Telstra Corporation
Responsibilities and Achievements:






Development of call center queue monitoring software on Windows 3.1 and Windows 95
Documented the software development procedures and testing plans
Conducted regular meeting with the customers and the development team
Provided installation and technical support for the software
Provided application software training for external customers
Conducted research of alternative and emerging technologies, analysis of market trends,
obtaining quotes and writing purchase order justification documents.
July 1989 – May1994
Technical Officer
Windsor telephone exchange
Telstra Corporation
Responsibilities and Achievements:



Installation and maintenance of AXE telephone exchange systems
Documented the standard process of installation of AXE systems
Troubleshooting technical problems related to AXE systems
Referees
Mr. Philip Woodward
Director
ABI Systems
Mobile: 0413 002 334
Email: philip@abisystems.com.au
Mr. Adam Burrows
Team Manager
Data Configuration Services
Telstra Corporation
Mobile: 0407 002 384
Email: adam.c.burrows@team.telstra.com