Hình đại diện của zhangyingtai
@zhangyingtai
Cờ của China Dandong, China
Làm thành viên từ 19 tháng 2, 2017
3 Đề xuất

zhangyingtai

Trực tuyến Ngoại tuyến
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
116 nhận xét
7.5
  • 99%Công việc đã Hoàn thành
  • 87%Đúng ngân sách
  • 97%Đúng hạn
  • 16%Tỉ lệ thuê lại

Portfolio

Các nhận xét gần đây

  • hình của Ds S. Web scrape of homedepot.com $300.00 AUD

    “Yongtao did an incredibly good job. Very professional. Easy to communicate with.”

  • hình của Charles H. Sentiment Analysis of tweets by multiple users on Twitter £185.00 GBP

    “Good work and within time”

  • hình của Ds S. Web scrape product information from Lowes $200.00 AUD

    “Yongtao's work was exceptional. He provided a professional grade extract of data using tools that are best in class (docker, python 3, scrapy). This made it very easy to use. The dataset was exactly as requested. The script was also exactly as requested, and worked immediately after receiving it. I can definitely recommend Yongtao to others.”

  • hình của Andrew B. Natural language processing - compare similarity of documents $705.00 USD

    “Yongtao was great to work with. He communicated well regarding deadlines and questions about the tasks. When the code needed minor adjustments, he understood what i needed and was able to make them very quickly. I highly recommend Yongtao.”

  • hình của Awais N. Coding task-Python $260.00 AUD

    “Good work and very patient. Thank you”

  • hình của Miguel D. Extract data from tradingview plot chart $213.00 USD

    “Very professional and polite, highly recommend him.”

Trải nghiệm

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.

Giáo dục

Master of Applied Science

2004 - 2008 (4 years)

Chứng nhận

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

Xác minh

  • Đã kết nối với Facebook
  • Freelancer ưa thích
  • Thanh toán đã được xác minh
  • Đã xác nhận qua điện thoại
  • Đã xác thực danh tính
  • Email đã được xác minh

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