Basic information

• Name: Zhigang Wang
• Gender: Male
• Birth: 1980-08-07
• Mobile: +86 13661381201
• Phone: +86 10 82786286
• Address: 1/F, Incubator Building 2-A, Zhongguancun Software Park, Haidian District, Beijing 100193, P.R.C.
• Home page: http://zhigang.org/
• Email: w1z2g3@gmail.com

Self-estimate

• Master of GNU/Linux development.
• Have deep knowledge on Virtualization, especially Xen.
• Know well of C, Python and Shell scripting.
• Effective communication in English.

Experience

• 2006-06 - Now: Oracle Software Research and Development Center (Beijing) Co., Ltd. | Software engineer | Beijing | Fulltime
  • 2009-11 - Now: Oracle VM 3.0
    • Oracle VM 3.0 is the integrated product of Oracle VM 2.2 and VirtualIron Virtual Center, which is acquired by Oracle.
    • Responsibilities:
      • Xend improvement.
      • Refactor Oracle VM Agent to include network and storage management functions.
      • Reimplement VM management in Oracle VM Agent.
      • Implement new features and bugfix in Oracle VM dom0 Linux kernel.
    • Key skills:
      • Linux storage and network management.
      • Linux paravirtualized driver implement.
      • Python programming.
  • 2008-10 - 2009-10: Oracle VM 2.2
    • Oracle VM 2.2 is upgrade for 2.1. It adds/improves many features that enterprise customers requires, e.g. high availability, power management, template builder, etc.
    • Responsibilities:
      • Improve xend to provide better interface for Oracle VM Agent.
      • Working on debuggers to help debugging Linux guest on Xen.
      • Working on Transcendent memory project which can optimize memory usage and improve performance for Linux running on Xen.
      • Improve storage management.
      • Refactor Linux control domain networking.
    • Key skills:
      • Linux storage management: iSCSI, Fiber Channel and Multipath technology.
      • Linux network internals: Bridge, VLAN and Bonding.
      • Linux firewalls: iptables implement and configuration.
  • 2006-11 - 2008-09: Oracle VM 2.1
    • Oracle VM is a high performance server virtualization software. The hypervisor is built on Xen and it leverages Linux as the control domain. There is also a web-based management console for virtual machine lifecycle management.
    • Responsibilities:
      • Linux paravirtualized driver improvement.
      • Implement Oracle VM Agent in the Linux control domain to communicate with the Oracle VM Manager.
      • Virtual disk/network QoS control.
      • Guest live migration using TLS/SSL.
      • Linux paravirtualized guest PXE boot implement.
      • Linux and Xen serial console improvement.
      • Linux virtual framebuffer improvement.
      • Linux guest VNC console improvement.
      • Implement global locking to prevent virtual machine from starting on different server.
      • Help support team to answer customer questions about Oracle VM.
      • Help QA team to setup Oracle VM testing plan.
    • Key skills:
      • Server virtualization methodologies.
      • Xen hypervisor internals.
      • Linux paravirtualized driver implement.
      • Python programming language.
      • Distributed version control system (VCS) like Git and Mercurial (hg) usage.
      • English communication.
  • 2006-06 - 2006-10: Oracle Validated Configurations
    • Oracle Validated Configurations is a program to offer pre-tested, validated architectures - including software, hardware, storage, and network components - along with documented best practices. It leverages Oracle Linux Test (OLT) to cover the various components test.
    • My responsibility to improve the test cases in OLT.
    • Key skills:
      • Oracle Enterprise Linux I/O testing/optimization, including network, disk and filesystem.
      • Oracle Enterprise Linux storage management.
      • Shell script programming.
• 2003-07 - 2006-05: China Standard Software Co., Ltd. | Software engineer | Beijing | Fulltime
  • 2005-01 - 2006-05: NeoShine Linux 2.0
    • NeoShine Linux 2.0 is a upgrade of 1.0. This version add more server capabilities compared to 1.0, which is focus on desktop.
    • Responsibilities:
      • NeoShine Linux kernel maintenance, including new hardware support, USB device support improvement (for webcams and mass storage), and power management improvement.
      • NeoShine Linux installer Anaconda improvement/bugfix.
    • Key skills:
      • Linux kernel patching/customizing/compiling.
      • Linux device driver model and driver development.
      • More C programming skills.
      • Linux operating system installation internals.
      • Team work.
  • 2004-02 - 2004-12: NeoShine Linux 1.0
    • NeoShine Linux is the successor of COSIX Linux. NeoShine Linux 1.0 use Gnome instead of KDE as default desktop.
    • Responsibilities:
      • Develop new features for Gnome desktop applications, especially the file manager Nautilus and archiver File Roller.
      • Fix bugs of Gnome applications.
      • Video/audio configuration tools development and the hardware detection library kudzu improvement.
      • Special function keyboard keys support in NeoShine Linux.
    • Key skills:
      • Gnome application development.
      • GNU tool chain usage, including gcc, gdb, ld, make, autoconf, automake and libtools.
      • C programming skills.
      • Software diff/patching.
      • Version control with subversion.
      • Bug tracking with Bugzilla.
      • Software quality control skills.
  • 2003-07 - 2004-01: COSIX Linux OEM
    • COSIX Linux is a distribution created by CS2C. The OEM product is a customized COSIX Linux version which will be preinstalled to PCs.
    • Responsibilities:
      • Embed PC vendor's brand/logos into COSIX Linux.
      • Develop or customize applications per vendor's requests.
      • Write scripts to automate the OEM version creation process.
    • Key skills:
      • KDE application development, especially the login manager kdm and archiver ark.
      • Package management with RPM package manager.
      • Linux operating system distribution approach.
      • Shell script programming.
      • Vim editor.

Education

• 1999-09 - 2003-07 | Northeastern University at Qinhuangdao | Computer Science and Technology | Bachelor | Qinhuangdao | Fulltime
  • High score on most courses.
  • Started hacking Linux and open source software since 2000.
  • Working at Network Center during 2000-09 - 2002-07, gained a lot of network management experience.

Communities

Main open source communities I participate in:

• Linux kernel.
• Xen.
• Python.
• Django.

Some projects owned by me:

• ZHIGANG.ORG: my personal website based on Django and MoinMoin for publishing blogs and technical articles.
• DocBook build system: a system generates various output formats (HTML, PDF, TXT, etc) from DocBook source.
• xenstore-socket: a lightweight inter-domain communication (IDC) protocol for Xen, which leverages the XenStore interface only.
• Python plugin framework: a simple plugin framework which is designed to have little dependency and easily to integrate with other system.
• Python ifconfig module: a python module to display network interface status.

Hobbies

• Reading, badminton, mountaineering and marathon.