Resume / Vita / C.V.

Last update: 2011-12-30 Permalink: http://zhigang.org/resume/

Basic information

Name: Zhigang Wang
Gender: Male
Birth: 1980-08-07
Phone: +1 (603) 897-3355
Address: 9 Kenmare Rd, Nashua NH 03062-3212 USA
Home page: http://zhigang.org/
Email: w1z2g3@gmail.com

Self-estimate

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

Experience

2011-02 - Now: Oracle America, Inc. | Senior software engineer | Nashua, New Hampshire | Full-time
- 2011-02 - Now: Oracle VM 3.0
  - Responsibilities:
    - Oracle VM Agent improvement.
    - Assembly and template management.
    - New features and bugfix in dom0.
  - Key skills:
    - Linux storage and network management.
    - Open Virtualization Format (OVF).
    - Python programming.
2006-06 - 2011-01: Oracle Software Research and Development Center (Beijing) Co., Ltd. | Software engineer | Beijing | Full-time
- 2009-11 - 2011-01: Oracle VM 3.0
  - 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 | Full-time
- 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 | Full-time
- 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

Open source communities I participate in:

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.
Python tarstream module: an incremental approach to extract files from tarfile.

Hobbies

Reading, badminton, mountaineering and marathon.