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Flag of Vietnam Ho Chi Minh, Vietnam
Member since October 2, 2013
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I'm a software developer with 7++ years experience in various domains. Some of technologies I work on: - C/C++ programming with multi-threading, STL, boost library... - Unix/Linux system admin, shell scripting. - Data Structures - Algorithms: Graph, Dynamic, Searching, Sorting and Other Mathematical. - Java, PHP, Perl, Python, Ruby, Lua. - MySQL, Oracle, Sybase, Redis databases. - Debugging tools: Valgrind, TCMalloc, GDB. - GSM with Dialogic TX 5000 Series Boards and SS7 protocols (TCP/IP based). - Cisco routers and switches with basic configuration. - Coverity, NginX, NS2, Wireshark, tcpdump, LFS (Linux From Scratch), IVI (In-Vehicle Infotainment), AWS... - Tired? Bad news: There are some reviews for what I have done so far, and the best way I know to get there is scroll-down this page. Happy reading :-) -------------------------------------- WARNING: Cheater, narrow-minded, unprofessional employers should go now. Do NOT waste our time! -------------------------------------- - x8091
$15 USD/hr
14 reviews
  • 81%Jobs Completed
  • 96%On Budget
  • 96%On Time
  • 7%Repeat Hire Rate


Recent Reviews

  • image of AleenaIlyas Project for hainh $125.00 USD

    “The project is not completed according to the dispute”

  • image of seven7digital Ad Block Detector Extension Needed $55.00 USD

    “Hong did more than what we were looking for. His communication is perfect, he understands everything you tell him and come up with brilliant solution every time. Don't hesitate to click the Award button when you check the profile of this freelancer.”

  • image of ItsAwais Project for hainh $36.00 USD

    “Great freelancer, completed the work on time and made revisions when needed. very friendly. Would hire again. thanks.”

  • image of etechlancer Cpp program changes needed $44.00 AUD

    “Thanks for your efforts”

  • image of lonzoball Creating a Programing that Draws Sides of Regular Polygons $30.00 USD

    “Quality work in a timely manner. Very professional and helpful. Would not hesitate in hiring.”

  • image of Aadhy Project for hainh ₹2250.00 INR

    “The best freelancer I have ever came across. Perfect work. thanks”



2006 - 2010 (4 years)


Linux Profession Institute (2014)


The Linux Professional Institute Certification (LPIC) is a certification program in the field of Linux, provided by Linux Professional Institute. Currently, I got LPI level 1.

AWS (2016)


AWS Certified Solutions Architect – Associate exam is intended for individuals with experience designing distributed applications and systems on the AWS platform.

CLA (C Programming Language Certified Associate) (2016)

C++ Institute

C Programming Language Certified Associate (CLA) is a professional certificate that measures your ability to accomplish coding tasks related to the basics of programming in the C programming language, as well as fundamental programming techniques, customs and vocabulary, including the most common library functions and the usage of the preprocessor


  • US English Level 1
  • C++ Level 1
  • TCP/IP
  • Unix Level 2


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