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Last updated: September 1, 2015

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  1. Jamis Johnson

    Jamis Johnson

    Data Scientist and Software Engineer

    United States - Portfolio: 1

    Specializes in Deep Learning, Computer Vision, Recommender Systems, and other areas of Machine Learning. 4+ years of professional, full-stack software engineering experience. A graduate of Columbia University with degrees in applied mathematics and computer science. Extensive experience with Python, JavaScript, and R, and understanding of 12+ programming languages, 6+ backend API and frontend web frameworks, both relational and NoSQL databases, and has created 3 iOS apps. A harmonious combination of professional programmer and mathematician.

    $50.00 /hr
    0 hours
  2. Ioannis Dritsas

    Ioannis Dritsas

    iOS Developer, Quantitative Analyst, Games Developer, PhD

    United Kingdom - Tests: 3 - Portfolio: 4

    My goal is to put my quantitative analyses and software development skills to practise in serving your needs. My PhD work focused on the simulation based optimisation of non-linear systems in high dimensions. During those research years I realised that I have a talent in turning seemingly incomprehensible data into meaningful representations of underlying information. But I did not stop there. I developed novel algorithms that automate such processes to artificially construct optimal systems. Put simply, I develop iOS apps, solve quantitative problems, develop algorithms, optimise systems using mostly Objective-C, Matlab and C++. I also design and develop games using mostly, OpenGL ES, Open GL, Unity3D, C++, Photoshop, Blender. What fascinates me the most is developing today what is many years ahead compared to what is currently available on the market or embedding such qualities to contemporary products. To see what I mean, here is an advanced logic game with numbers that I have developed for the iOS platform:  I would also like to highlight that during my years of work at Alcatel-Lucent as a senior design engineer I developed strong product development and time management skills to say the least. Thank you for your time and I am looking forward to putting my experience, skills, and education at your service.

    $70.00 /hr
    0 hours
  3. Andrew Swantek

    Andrew Swantek


    United States - Tests: 2

    I have been conducting experimental research, both applied and fundamental, for 10 years in wide range of scientific problems. This has given me a mastery level knowledge of problem formulation, problem solving, and detailed analysis skills. My day-to-day coding/analysis is done in Python with packages such as: numpy, scipy, matplotlib, pandas, parallel python, scikit-image, scikit-learn, and h5py. I also have extensive experience with scientific/engineering software packages including: MATLAB, ImageJ, Photoshop, the and the R Language. My skill set also includes data analysis techniques for both sparse and large data sets. I have experience using spectral, correlation, statistical, and numerical analysis for problem solving with stochastic and multi-dimensional data. I regularly work with large time series data sets. Other interests involve data presentation and visualization, and machine learning for problems in engineering. My current work involves the investigation of automotive fuel sprays at Argonne National Laboratory.Typical data sets on the order of hundreds of Gb to 1 Tb. Our worked has garnished interest not only from the US Department of Energy, but also the automotive industry, whom we work with regularly.

    $35.00 /hr
    0 hours
  4. Michael Insler

    Michael Insler


    United States - Tests: 2

    I am an Assistant Professor at the U.S. Naval Academy's Economics department. I am a applied econometrician with a Ph.D in Economics from the University of Rochester. I have published articles in several peer-reviewed economics journals that require the highest degree of rigor in statistical and quantitative analysis. My research has examined data in the fields of education policy, health economics, housing policy, and labor economics. I am well versed in Stata, MATLAB, and MS Office. I am a skilled writer and editor of technical articles and reports.

    $100.00 /hr
    0 hours
  5. Andrew Hertel

    Andrew Hertel

    Quantitative Data Analyst, PhD

    United States - Tests: 1

    I have a PhD in psychology with a minor in statistics. I am an independent and efficient data analyst with 15+ years of experience, teaching, and publications in peer-reviewed scientific journals. I complete projects ranging in complexity from basic data summaries to complex longitudinal modeling. Past projects have included analyses for federal grant funded projects and analyses for a leading online textbook company. I provide accurate analyses and I clearly communicate those analyses to you in a way that also fosters your comprehension and understanding. You will trust my reports and know what you are getting.

    $50.00 /hr
    0 hours
  6. James Pratt

    James Pratt

    Data Analyst and Developer

    United Kingdom - Tests: 5

    Experienced Business and Data Analyst, Database Admin and .Net Developer. 7 years experience working in the Financial Services industry in data and IT development roles, including most recently as head of a new ventures technology team. Previously my roles covered database administration, data and business analysis and the development of a monitoring platform for business and statistical models. I have strong technical skills relating to .NET development environments, data management, MI technologies, analytics and modelling. Also I have been a lead designer on several complex platform integrations. As a manager I helped build a successful and effective new ventures development team and lead them through various high visibility and time pressured projects.

    $15.00 /hr
    0 hours
  7. John Johnson

    John Johnson

    Principal Statistician

    United States - Tests: 2 - Portfolio: 1

    Take action on your data! Throughout the last 18 years I have been deeply involved in the collection, management, and analysis of data. A Ph.D. in Statistics with a concentration in experimental design, I have worked closely with data, from taming unwieldy data to predictive modeling. I am seeking projects, in healthcare and otherwise, where I can help you use data to gain insight and make decisions.

    $77.78 /hr
    0 hours
  8. Adam Wisseman

    Adam Wisseman

    Data Mining Scientist

    United States

    I am a trained data scientist with a great deal of proficiency in R and SQL. My main interest lies in creating beautiful data visualizations that tell a compelling story. I am proficient in dealing with data in a variety of formats. My day job mainly involves extracting satellite and geospatial data from various databases (Oracle and Teradata) in order to build models to validate crop insurance claims. To accomplish this task, I have written an R package of data cleaning, visualization, and modeling tools specific to these data sets. I have also created a Shiny dashboard for model visualization and diagnostics. I look forward to discussing your data modeling and visualization needs!

    $27.78 /hr
    0 hours
  9. Sandip M.

    Sandip M.

    Machine learning engineer


    - A software developer with 5 years of work experience in Machine learning, Data mining, Web development, database development. - Completed Master’s Degree in Computer Science at Technical University of Munich with major in Machine learning. - Worked at Allianz on “Semi supervised learning in insurance fraud detection” - Expertise in handling large datasets, doing feature preparation, developing Supervised, unsupervised, and semi supervised predictive models. - Well versed working in both industry and research environment.

    $20.00 /hr
    0 hours
  10. Valerii Diachenko

    Valerii Diachenko

    Python Developer (Data Management & Visualization)

    Ukraine - Tests: 2

    I am a software developer experienced in ERP systems and programs for automating a company’s financial activities. I have been working with 1C:Enterprise platform for over four years. I worked on integration of business application with third-party systems include SQL databases, REST and SOAP web-services and .NET applications. Programming of the analytical reporting functionality and helping analyze it is one of general part of my work. Also I have strong skills in software architecture building and code optimization. I have been working with Python for data analyze and visualization about a year. I am proficient using numpy, pandas, matplotlib and other common science modules. Currently I am studying machine learning and data science with Python.

    $22.22 /hr
    0 hours