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@DavidLiu80
Flag of China Shenyang, China
Member since 8 มิถุนายน 2013
13 คำแนะนำ

DavidLiu80

ออนไลน์ ออฟไลน์
Overview 1. “Great Job as expected!!!” 2. “The best part about working with David is that I trust he will follow through and deliver what is needed.” 3. “David did an Awesome job and was a great communicator I would diffrently hire him again for future projects"
$50 USD/ชม.
135 บทวิจารณ์
8.3
  • 85%งานที่ทำสำเร็จ
  • 91%อยู่ในงบประมาณ
  • 86%ส่งงานตรงเวลา
  • 17%อัตราการจ้างซ้ำ

Portfolio

บทวิจารณ์ล่าสุด

  • image of leokaan Project for Sun X. $1200.00 USD

    “He is professional, like the way he works”

  • image of Lynn2018 Senior Web developer with iOS skills [Sealed]

    “Sun was like a scalpel, I interviewed him at 9 am, hired him at 9:30 am, and gave him access by 9:40 pm, By 12 pm, he had fixed the problem.”

  • image of ivanPz Project for Sun X. [Sealed]

    “Very Good freelancer. I've hired hundreds of freelancers in the past 8 years. 90% or more will waste your time, inflate their capabilities and cause problems with your project. Sun is a pro. My Highest recommendation. Would highly recommend.”

  • image of ivanPz Top-rated Developer Needed for E-commerce Project [Sealed]

    “Sun is literally the best IT person I have ever worked with. I HIGHLY recommend him for the following reasons: 1. Scope of Knowledge: Sun understands all major application environments and typically knows the solution within minutes of investigating. 2. Speed of Response: If the situation is critical Sun responds and addresses the issue in minutes 3. Preventative approach: Sun reviews and recommends solutions to improve and stop future issues.”

  • image of dnlcuk Project 360 £1800.00 GBP

    “The freelancer complied fully with my requests. This was a complex project.”

  • image of Mike K. Android App Developer integrate EddyStone iBeacon Technology and Firebase as a Backend €2000.00 EUR

    “I can only recommend to work with Sun X. He is an outstanding developer and it's a amazing to work with him. He created a complete new Android app for us, integrating Firebase and even working with Bluetooth Beacon Devices. This was only a job for an expert and Sun X. delivered as asked. The communication is great and very clear even though we both lived on the other side of the world. Sun X is very kind and offers great help until the end of the development of the project, to make sure it also works on your computer. It was a pleasure to work with him and we will definitely work with him in the future again!”

การศึกษา

Master

2002 - 2006 (4 years)

ผลงานตีพิมพ์

Mobile life in World

This book is about current mobile App and Game's development and use. Published Date: 2012.4

Certifications

  • HTML5 Basics 1
    100%
  • JavaScript Level 1
    98%
  • US English Level 2
    95%
  • Android 1
    93%
  • PHP Level 1
    93%
  • Preferred Freelancer Program SLA
    92%

การยืนยัน

  • เชื่อมต่อกับ Facebook แล้ว
  • Freelancer ชั้นแนวหน้า
  • ยืนยันการชำระเงินแล้ว
  • ยืนยันหมายเลขโทรศัพท์แล้ว
  • ยืนยันตัวตน
  • ยืนยันอีเมลแล้ว

ทักษะเด่นของฉัน

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