Image de profil de ZhenExpert
Drapeau de China Dandong(???), China
Membre depuis le 8 septembre 2017
8 Recommendations


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Being a "Expert Developer" I can assure you 101% satisfaction to implement your own idea to real things. I have over 10 years career in software and hardware development. Our skills are like the followings: 1. Web App Development - PHP/Laravel/Wordpress - Javascript, MEAN/MERN stack - Python, Django - Ruby on Rails 2. Mobile App Development - Android Studio - Xcode, Swift - React Native, Xamarin, Ionic, PhoneGap 3. Blockchain & Cryptocurrency - Solidity, C++, Python, Javascript, Go - Ethereum, Bitcoin, Vegue, Dash, Pivx - PoW & PoS - Erc20, Erc 232, Erc 720, Erc 721 - IPFS - CEX/DEX - 3rd Party Apis such as GDX, Binance, Gemini, Changelly, etc 4. Electronics & Electrical Engineering, IoT Development. - Architecture, Electrical Engineering, Circuit & PCB Design, Micro-controller - Firmware & Middleware - Many kinds of IoT, Wearable, Healthcare Device. 5. ERP / CRM Development - Salesforce, Zoho, HubSpot 6. Machine Learning - Python, R, TensorFlow, IBM Watson - Neural Network
$50 USD/hr
57 commentaires
  • 93%Travaux complétés
  • 98%Selon le budget
  • 97%Dans les temps
  • 19%Taux de Réembauche


Avis récents

  • image de Sonicmia Gaming site $4705.00 USD

    “Amazing freelancer does everything perfect in such a short timeframe. Was not sure if the freelance could do what i though but did everything without mistakes. Got site done in a little over month amazing job will definently hire again.”

  • image de nodemasters Quark Cryptocurrency creation £5455.00 GBP

    “very good”

  • image de aquadownunder Project for Chunyan Y. $2176.00 AUD

    “Initial milestone payment - watch this space for the final one...”

  • image de drodriguez4 Test Xbee Network with modbus sensors and web interface + mysql. $4705.00 USD

    “High tech skills about new technologies and procedures, work fast and secure. I recommended.”

  • image de goldenpathsolns Migrate Java applet to JavaScript: a tool for defining direction of travel in agricultural fields $1500.00 USD

    “Overall, the project was executed well, and added value to my business. The product generally met the requirements, although there were some issues that we weren't able to iron out in the time that I had, we were very close on delivery. I ended up doing some rework to make the product production-ready. I was able to handle those changes within a day, and the cause of those issues could be attributed to a lack of clarity in the initial requirements I provided. The developer clearly worked hard to understand my needs, communicated frequently and was quick to ask questions when needed. They put in long hours, and overall, communication was very good. The product was well written, easy for me to maintain, and showed good proficiency.”

  • image de chevypowell Troubleshoot a WordPress Plugin (MYSQL) - MYSQL AND PLUGIN DEBUGGING -USES Cron Job $122.00 USD

    “Excellent work!”


Web Development History

Aug 2003 - Mar 2009 (5 years)

In Dalian there is DLSP - Dalian Software Park. I worked for 7 years there as a web developer. I gained a wide range of web development techs there including javascript, [login to view URL], [login to view URL], php, wordpress, shopify, python, django, ruby, ruby on rails, mongodb, mysql, sqlite, etc. I built 70+ websites. You can see a part of them in my portfolio.


Master's Degree

2009 - 2012 (3 years)

Bachelor's Degree

1998 - 2003 (5 years)


  • Preferred Freelancer Program SLA
  • Numeracy 1
  • US English Level 1


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