Image de profil de zhangyingtai
@zhangyingtai
Drapeau de China Dandong, China
Membre depuis le 19 février 2017
1 Recommendations

zhangyingtai

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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.
$25 USD/hr
84 commentaires
7.3
  • 98%Travaux complétés
  • 83%Selon le budget
  • 96%Dans les temps
  • 18%Taux de Réembauche

Portfolio

Avis récents

  • image de ronan16 Help to config or implement Bitmex Market Maker bot $350.00 USD

    “CAUTION. Although he have a very good rate here he did not made the project. He sent ***30*** updates of the bot and now i believe the 30 version were the same. the script needes to try to buy and sell between spread. but after a few hours it starts to send only buys or only sells. This problem was explained in details. He said he undestood but after 30 versions there is no change the reason i think now that the 30 version are the same is that today after request his test account to see if the bot was working (as he said) he refused. Then gave me acess to his computer. I could see that there was only 5 hours of test and he nows since the first unsuccessful test that the bot works well for this time. THE WORST part is that he insist in childish lying about bitmex history. I use it since the begining and IT WAS WHAT WAS USED BETWEEN US to testify the failed test,. So it is ridiculous he insist in that to say that the bot worked well for 24 hours why would his bot works well in his pc and not in my real and test accounts? i tried to help him A LOT with this bot. I sent a lot of emails to bitmex staff to help. I even got FREE HELP from Gunars Kepe from another freelancer site. the bot is 100% useless to me because sooner or later it starts to send a lot of buy orders and broke the account”

  • image de support372 automation with katalon studio $800.00 USD

    “superb job done , will hire again”

  • image de ansgarwalther Web Scraping in Python £450.00 GBP

    “Competent python programmer”

  • image de katiflores Project for Yongtao J. $50.00 USD

    “Working with Yongtao is the best choice in terms of speed, quality and subject matter expertise (SME)”

  • image de katiflores Webscrape using PYTHON SELENIUM the product information from Performance Health in Key Value Pair Format $555.00 USD

    “Yongtao is a SME (Subject Matter Expert) in the area. I am happy I found him, the team is already learning tons from Yongtao !”

  • image de AndyShop Amazon data extraction under specific category for marketplace research $450.00 USD

    “Great Job. very professional and fast with the job. Keep it up.”

Expérience

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.

Éducation

Master of Applied Science

2004 - 2008 (4 years)

Certifications

  • Preferred Freelancer Program SLA
    97%
  • Python Level 2
    77%
  • US English Level 1
    77%
  • Python Level 1
    75%

Vérifications

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  • Paiement vérifié
  • Téléphone Vérifié
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Mes meilleures compétences

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