Mojmir Vinkler

Mojmir Vinkler

Brno, South Moravian Region, Czech Republic
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Mojmir Vinkler

Mojmir Vinkler

Brno, South Moravian Region, Czech Republic
Member since April 17, 2014
Mojmir is a full-stack data scientist with strong development skills, allowing him to handle model design, data collection, and final implementation of software. He has a strong background in statistics, machine learning, business, computer science, and predictive modeling of big data sets.
Mojmir is now available for hire
Portfolio
Experience
  • Python, 4 years
  • Machine Learning, 4 years
  • Data Mining, 4 years
  • R, 3 years
  • Apache Spark, 2 years
  • Pandas, 2 years
  • GAE, 2 years
  • IPython Notebook, 1 year
Brno, South Moravian Region, Czech Republic
Availability
Part-time
Preferred Environment
macOS, Sublime Text, iPython Notebook, GitHub
The most amazing...
...thing I've ever built is an optimal product pricing algorithm based on an idea from multi-armed bandits that successfully increased revenues by a third.
Employment
  • Python Programmer, Data Scientist
    Picwell
    2014 - PRESENT
    • Processed huge amounts of data using Spark.
    • Created & optimized scikit-learn models.
    • Built an ETL application with Luigi and Flask.
    • Created surveys on Mechanical Turk.
    • Integrated R and Python code.
    Technologies: Python, Spark, Flask, scikit-learn
  • Pattern Analysis / Data Matching System Engineer
    flexcode (via Toptal)
    2014 - 2015
    • Created an algorithm for predicting correct matches using text analytics and image processing plus web UI for data collection.
    Technologies: Python, scikit-learn, Flask, Google App Engine
  • Data Scientist
    Webnode
    2013 - 2015
    • Handled ETL processing in Python with Pandas.
    • Designed and implemented optimal product pricing algorithms.
    • Designed a Customer Lifetime Value (CLV) model.
    • Monitored AdWords (automated alerts) and bidding based on CLV.
    • Engaged in smart business reporting based on statistical models and machine learning.
    Technologies: Python, MySQL, R, Pandas
  • Web Developer
    Mergado.cz
    2011 - 2013
    • Created an XML parser for parsing invalid XML files (product feeds for price comparison sites).
    • Developed web back-ends.
    • Designed and implemented functionality for bidding on price comparison sites.
    • Built data connectors to Heureka.cz and Sklik.cz.
    • Handled minor front-end work with JavaScript.
    Technologies: Python, PHP, JavaScript, MongoDB, Redis
Experience
  • Universal Portfolios (Development)
    https://github.com/Marigold/universal-portfolios

    Plenty of online portfolio selection algorithms (financial engineering) and tools for analysis developed as part of my master thesis (available in Czech at https://drive.google.com/file/d/0B5VWK_SXwPlkaGg2NGZYTjdYYzQ/edit?usp=sharing).

Skills
  • Languages
    Python, R, MATLAB, JavaScript, Haskell
  • Frameworks
    Apache Spark, Flask, GAE, Django
  • Libraries/APIs
    PyMC, Pandas, NumPy, SciPy, Matplotlib, AdWords API, Scikit-learn, PyQt
  • Tools
    IPython, StatsModels, Sublime Text 2, IPython Notebook
  • Storage
    HDFS, Redis, MongoDB, PostgreSQL, MySQL
  • Misc
    Machine Learning, Bayesian statistics, Data Mining, Data Analysis, Financial Engineering, Business Intelligence (BI), Statistics, Data Visualization
  • Paradigms
    Functional Programming, Kanban, Scrum
  • Platforms
    Linux
Education
  • PhD degree in Biomedical Image Processing
    Masaryk University - Czech Republic
    2014 - 2017
  • Master's (MBA) degree in Business Administration
    City University of Seattle - Seattle
    2012 - 2014
  • Master's degree in Statistics and Data Analysis
    Masaryk University - Czech Republic
    2009 - 2014
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