Изображение профиля zhangyingtai
Флаг China Dandong, China
На сайте с 19 февраля 2017 г.
3 Рекомендации


В сети Офлайн
Hi I am a senior python, mobile and backend developer with 8 years of professional experience. My experiences are - Data Visulization o Libraries: bokeh, matplotlib, , d3.js o Projects: road networking system, car-bike relationship - Machine Learning o Libraries: Tensorflow, Scikit-learn, Pytorch, Pandas, Numpy o Models: CNN, RNN and RNN o Projects: Car Distance Detection, Image Classification, Price Prediction Model - Web Development o Django, Flask, AngularJs, VueJs, NodeJs o Projects: , , - AWS S3, EC2, DynamoDB and SWF - Web Scraping o Scrapy, Requests, BeautifulSoup and Selenium o Aliexpress, Pipl, Secfilling and CAD sites. o Facebook, Instagram and Twitter - Server Administration Automatic deploying with Fabric and Ansible - iOS/Android app develoment(Native and Hybrid) - Backend Web Service development If you are looking for agile and reliable python and mobile developer, that's just me. I will do my best for the project. Thanks.
$40 USD/hr
132 отзыва(-ов)
  • 99%Выполненные работы
  • 85%В рамках бюджета
  • 93%Своевременность
  • 15%Рейтинг повторного найма


Последние отзывы

  • изображение Rencheng W. Project for Yongtao J. -- 9 $350.00 SGD

    “Yongtao has been working for me for many years. He is always very reliable.”

  • изображение Rencheng W. Project for Yongtao J. -- 8 $875.00 SGD

    “Yongtao is a very reliable person. I will keep a longer business relationship with him.”

  • изображение Theo D. Python app for web and desktop $2176.00 USD

    “Yongtao does very good work. However, if you are planning to work with him, make sure you lay out your specs in comprehensive detail. In our first engagement, he did not spontaneously seek clarification or offer suggestions.”

  • изображение Daniel H. Scrap Data from Website and Save in CSV format $234.00 USD

    “STAY AWAY . DO NOT WORK. DO NOT THROW YOUR MONEY AWAY. What a waste of time! He received the first payment and then started making excuses that job can not be done and he will be doing it his way and I will be happy. He showed me a small nice result but the whole work was totally different. He is paid in full (I was stupid) and he does not even answer or correct his work. STAY AWAY . DO NOT WORK. DO NOT THROW YOUR MONEY AWAY.”

  • изображение Rencheng W. Project for Yongtao J. -- 7 $165.00 SGD

    “YT is always reliable and delivers things on time. He is an action man rather than a talker. We have been working together for years.”

  • изображение Alessandro S. Project for Yongtao J. -- 2 €292.65 EUR

    “Fantastic! Great to work with Yongtao.”

Опыт работы

Data Miner

Feb 2008 - Dec 2015 (7 years)

I was responsible for scraping data from various sites. Our company could make a plan based on the data.


Master of Applied Science

2004 - 2008 (4 years)


  • Preferred Freelancer Program SLA
  • Python Level 2
  • US English Level 1
  • Python Level 1


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