Jason is available for hire

Jason Liu

Verified Expert in Engineering

Data Mining Developer

Location

Beijing, China

Toptal Member Since

January 18, 2015

Jason's strong numerical skills and PhD research experience in Astrophysics demonstrate that he has the quantitative skills necessary to excel as a Data Scientist. He has worked with a TB dataset and conducted simulations to validate various theoretical models.

Python R Data Mining Data Visualization C C++SQL PyCharm PyQt Django REST Framework D3.js Django Apache Spark RStudio Git

Portfolio

Ludwig-Maximilians-Universitat, Munchen

SQL, C++, C, R, Python

Experience

Data Mining - 5 years Python - 4 years Data Visualization - 4 years R - 2 years PyQt - 2 years Django REST Framework - 1 year Django - 1 year

Availability

Part-time

Preferred Environment

Git, RStudio, PyCharm, OS X

The most amazing...

...thing I've coded is a scientific research GUI to facilitate searching galaxy clusters from deep sky images.

Work Experience

Research Assistant (PhD student)

2010 - 2014

Ludwig-Maximilians-Universitat, Munchen

Developed algorithms for research.
Created a simulation for testing.
Built a pipeline to automate searching galaxy clusters, including a GUI for human interaction.
Built an analysis tool (Wiener filter) to extract weak signals from image data.
Built a parallel MCMC analysis program running on a supercomputer.

Technologies: SQL, C++, C, R, Python

Skills

Languages

Python, R, C, SQL, C++, HTML, CSS

Paradigms

REST, Data Science

Frameworks

Django REST Framework, Django, Apache Spark, Hadoop

Libraries/APIs

PyQt, D3.js, jQuery

Tools

PyCharm, Git

Other

Data Visualization, Data Mining

Platforms

OS X, RStudio

Education

2010 - 2014

Ph.D. Degree in Physics

Ludwig Maximilians Universitat, Munchen - Munich, Germany

2008 - 2010

Master's Degree in Astronomy

University of Illinois, at Urbana-Champaign - Urbana, IL

2004 - 2008

Bachelor of Science Degree in Physics

Peking University - Beijing, China

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