Profile image of KOKTech
Flag of China Dandong, China
Member since April 4, 2019
2 Recommendations


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Welcome to our profile. We are the KOKTech team who has professional development skills and more than 10 years of rich experiences in embedded development including hardware design, OS and application software development as well as security fields. Here are our specific skills: 1) Software Development Skills -Mobile apps: Android, ios, React Native, Xamarin -Game development: Unity 3D, Unreal -AR/VR, FR apps -Windows Application and Drivers -Linux Application and Drivers -Security and Privacy System -Web development: Reactjs, node.js, Angular.js, D3.js -Machine learning: Tensorflow, Pytorch, Yolo 2) Hardware Development Skills - C/C++/Embedded C. - MPU, ARM, PLD and embedded system equipment. MCUs : RK family, AXX family, STM32 family, - Arduino - Linux-Embedded Try us and take a big benefit !!!
$30 USD/hr
42 reviews
  • 100%Jobs Completed
  • 91%On Budget
  • 94%On Time
  • 11%Repeat Hire Rate


Recent Reviews

  • image of Paul Constantin M. Mobile App Project €300.00 EUR

    “Very fast and vrey professional. Delivered 4 days before deadline. Highly Recommend this developer”

  • image of Chris S. Arduino+OLED circuit board design $200.00 USD

    “Thanks Z appreciate all the hard work”

  • image of Filip S. Project for Zhengang Y. $100.00 USD

    “Great! Again :)”

  • image of Cheeyin L. Project 21878663 has been deleted $500.00 USD

    “very kind and responbility person ..will hire again and again !”

  • image of James D. Universal frame pcb $500.00 USD

    “This was my first time using Freelancer and Zhengang made it a good experience. He answered my messages very quickly considering the big time difference between China and the US. The first set of pdf drawings for my circuit board were delivered on time and he handled a few different changes to the design quickly. I would use Zhengang again. Jim”

  • image of Jo C. design pcb €700.00 EUR

    “Very good work! super fast!”


more than 10 years of development experience

Mar 2006 - Dec 2018 (12 years)

Our team had worked as senior developers in R&D department of CNB Electronic Co,LTD. During we developed many Embedded products including POS, Face Recognition System, DVB T2 receiver hardware design and software development ... Also we have many experiences in different embedded OS and applications development.


Master Degree

2000 - 2006 (6 years)


  • Preferred Freelancer Program SLA
  • US English Level 1


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