Zhe Li

Gothenburg, Sweden

Member since February 9, 2014

Zhe is a senior web developer and entrepreneur with a proven ability to develop efficient web back-end systems for mobile and web applications. He is experienced in embedded development on Arduino and Rasberry Pi, automated testing, and TDD.

Zhe is now available for hire

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Portfolio

offerQA
Python (Django), PostgreSQL, Twitter Boostrap, jQuery, Jinja2, Memcached...
Ericsson
Python, MySQL, RabbitMQ, Redis, PHP, Drupal, jQuery
HiQ AB
Python, Django, Django REST Framework, JavaScript, jQuery, C/C++, C#, PHP...

Experience

Python, 7 years
Django, 4 years
Django REST, 2 years
SaltStack, 2 years
Erlang, 1 year

Availability

Part-time

Preferred Environment

Linux, Vim, Git

The most amazing...

...thing I've done is to implement a back-end RESTful API service for my social network startup app. We released the first iOS app within 6 months.

Employment

Founder
offerQA
2014 - PRESENT
- Improved and customized the existing Q&A system Askbot.
- Deployed and maintained web services using Vagrant, SaltStack, and DigitalOcean.
- Handled front-end development using Twitter Bootstrap and jQuery.
- Handled user development using MailChimp, a custom landing page, and Google Analytics.
Technologies: Python (Django), PostgreSQL, Twitter Boostrap, jQuery, Jinja2, Memcached, Celery, SaltStack, Vagrant, DigitalOcean, New Relic
Web Developer
Ericsson
2014 - PRESENT
- Worked on job queue systems using Python and RabbitMQ for distributed functional and system testing.
- Implemented and improved a RESTful API in Python and Drupal.
- Implemented service analysis and monitoring tools using Python.
- Performed front-end development with jQuery and Drupal.
- Implemented an inventory system using Meteor.
Technologies: Python, MySQL, RabbitMQ, Redis, PHP, Drupal, jQuery
Consultant
HiQ AB
2012 - PRESENT
- Created a data visualization web application for a welding test using Django, Twitter Bootstrap, and JavaScript. Managed the server by SaltStack and Vagrant.
- Developed embedded system tests using C, C#, and Python.
- Performed web service back-end development using the Python/Django REST framework.
- Handled continuous integration system development using Python/Jenkins.
- Developed the web front-end using JavaScript and CoffeeScript.
- Developed test automation systems using Python and the Robot Framework.
Technologies: Python, Django, Django REST Framework, JavaScript, jQuery, C/C++, C#, PHP, Robot Framework, CAN bus, MySQL, PostgreSQL, SaltStack, Vagrant
Test Developer
ESAB AB
2012 - 2014
- Created a data visualization web application for a welding test using Django, Twitter Bootstrap, and JavaScript. Managed the server with SaltStack and Vagrant.
- Performed UI development on an embedded device using Rhapsody C++.
- Implemented functional tests on embedded system via C#, Python, and CAN bus.
- Developed a continuous integration system using Jenkins, the Robot Framework, and Python.
Technologies: JavaScript, Python, C++, C, C#
Co-founder, Back-end Developer
metoo LLC
2012 - 2014
- Created a RESTful API for metoo's social networking app on both iOS and Android.
- Implemented an activity feed using Python and MongoDB.
- Took advantage of TDD, DevOps, and Kanban, and released the first few versions with limited resources.
- Handled user development using Localytics, Urban Airship and MailChimp.
- Coordinated with developers in Serbia for mobile application development.
Technologies: Python, Django, SaltStack, MongoDB, PostgreSQL, Redis
Consultant
DFind
2011 - 2012
- Implemented functional test development and assignment at Ericsson using TTCN.
Technologies: TTCN, Python, C
Test Developer
Ericsson
2011 - 2012
- Implemented functional tests for the Ericsson LTE (4G) gateway system using TTCN.
- Analyzed test results using Wireshark and other tools.
- Helped the team to adopt to Scrum methodology as the Scrum Master.
Technologies: Python, TTCN
Test Developer
Lavasoft
2008 - 2011
- Implemented a continuous integration system with a distributed test system using Buildbot, Python, and VMware.
- Implemented functional and UI automatic tests for Ad-Aware.
- Developed an installer using WiX.
- Developed a test management system using Python and Web2Py.
- Developed a real-time web application showing software activation location on a spinning globe (Python, JavaScript).
Software Engineer
Transco.cn
2005 - 2006
- Improved an automatic legacy test for Autodesk products (Inventor Pro).
- Helped build a wiki website (http://www.oklocalization.org).
- Created manual GUI & function tests on Sitescope Cisco Works Monitor.
- Performed unicode and localization tests for Autodesk products.
Technologies: C++, SilkTest

Experience

Back-end RESTful API service for social network app metoo. (Development)
http://metoo.io
The service was implemented mainly using Django and the Django REST framework. The tech stack includes Nginx, PostgreSQL, MongoDB, and Redis. All the services are managed by Fabric and SaltStack on DigitalOcean.
offerQA - social Q&A website for Chinese expats (Development)
offerQA is one of my startup projects. It's a stackoverflow for Chinese expats. Technologies used are Python, Django, Askbot, Memcached, PostgreSQL, jQuery, SaltStack, and Vagrant.

Skills

Languages
Python, JavaScript, Java, PHP, Erlang, C++, C, CoffeeScript
Frameworks
Django REST, Django, Twitter Bootstrap, web2py, AngularJS, Flask
Tools
MailChimp, SendGrid, VirtualBox, Virtualenv, CorelDRAW, SaltStack, Adobe Photoshop
Paradigms
Scrum, Test-driven Development (TDD), Kanban, DevOps
Platforms
Linux, Meteor, Arduino, iOS
Misc
Urban Airship, Localytics, STM32
Libraries/APIs
jQuery, MongoEngine, Twitter API, SQLite, Facebook API
Storage
MySQL, Redis, MongoDB, Memcached, PostgreSQL

Education

Master's degree in Systems Biology and Bioinformatics
Gothenburg University - Gothenburg, Sweden
2006 - 2008
Bachelor of Science degree in Materials Chemistry
Jinan University - Shandong, China
2001 - 2005

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