Изображение профиля lingzhai12
На сайте с 20 февраля 2020 г.
0 Рекомендации


В сети Офлайн
Since 2010, I have focused on building top-notch native iOS /Android and web apps, embracing new technologies, and developing great relationships with clients. I have keen insight into what it takes for an app to be successful. My priorities are perfect function, intuitive UI and UX, along with simple beauty. Additionally I deeply understand the meaning of deadlines and the reasons for their existence. My mobile app and web development technical stacks are as follows; - Swift/objective-c for native iOS app development - java/kotlin for native Android app development - Flutter framework for hybrid app development - react, Angular, vue, bootstrap for frontend development - node, Ror, C# for backend development I am also a professional electronic engineer and I have mastered the following techniques; - Electronics circuit design(schematic, PCB, simulation) - IOT/Home Automation(Hardware & Firmware) - RF device(active & passive) development - Firmware development I am a GIT and JIRA expert with good collaboration experience and working styles. I keep a strict eye on pixel perfectionism of UI/UX design, and always stick to result-driven working manner with great attention to detail, periodic thorough code review, and critical thinking. The best quality, accurate timeline, free and polite after-service are what I guarantee to my clients. Looking forward to hear from you!
$50 USD/hr
10 отзыва(-ов)
  • 91%Выполненные работы
  • 93%В рамках бюджета
  • 93%Своевременность
  • N/AРейтинг повторного найма

Элементы портфолио

Последние отзывы

  • изображение Gee D. Microstrip Antenna Design £150.00 GBP

    “he supposed to design a simple 800MHz antenna Microstrip. He sent the design through for us to manufacture the boards. After testing the designed antenna we found it was resonating at 600MHz not 800MHz as requested. After contacting Ling about it he said sorry and would produce the correct one. We never heard back from him again after numerous attempts. He has our money so why should he bother to correct his bad work.....Some engineer have pride in their work other just want to take money”

  • изображение Robert P. Wheel Flange Sensor Circuit Design $700.00 AUD

    “did a good job, very curtious and patient..will use again.”

  • изображение Andrew H. Linear Hall Effect Linear Camera PCB design $1000.00 USD

    “Quick turn around on a new project!”

  • изображение Jack T. Design a 28GHz Grid Array Antenna $1000.00 SGD

    “Though he have been using CST software for antenna design and simulation, he is quick on getting familiar with the new software to work with. Most importantly he is very fast in replying your messages.”

  • изображение Victor U. I need an electro engineer or PCB layout designer $800.00 USD

    “Ling did an excellent job. Delivered this project finished in just a few days. Will diffidently hire again.”

  • изображение J L. custom raspberry pi hat $250.00 USD

    “Excellent work. We are planning to work again with him in the future!”

Опыт работы

Principal Software Engineer

Mar 2014

I am working Principal Software Engineer here now.

Software Engineer

Jan 2010

I am still working here as a software engineer.


Bachelor degree

2007 - 2008 (1 year)


  • Preferred Freelancer Program SLA


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