R Freelancers

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Last updated: April 1, 2015
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Gabriel Moncarz

Gabriel Moncarz

Computer Engineer - Python developper

Argentina - Last active: 1 day ago - Tests: 5

Computer Engineer, Master in Quantitative Finance and curruntly studing a master in Data Mining and Knowledge discovery. I've been developing backend software, tools and plugins to international companies for the last 10 years. I code in Python, Perl, Java and C. All my developments run on Linux and Unix environment. I manage Linux servers, DB Engines, Tomcat/apaches servers and most well known Linux tools and services. For statistical analysis I work with R, SPSS and MatLab.

$38.00 /hr
2,171 hours
Luke Green

Luke Green Agency Contractor

R-Programming and Statistics Consultant

United States - Last active: 25 days ago - Tests: 9 - Portfolio: 2

I am an honors double major in Mathematics and Applied Math/Statistics at Stony Brook University and founder of Vivaldi Analytics, a small data analysis startup based on Long Island. I have a large amount of experience with R - specifically machine learning algorithms, data visualization (using ggplot2 primarily), and data cleaning. I've been working as a statistics consultant both independently, and for my company for the past year. I've completed work for a variety of individuals and companies, such as the Faculty-Student Association at Stony Brook and StatSocial ( http://www.statsocial.com/ ). I also have experience creating data analysis applications using R Shiny. For some examples of my past projects, please see: http://www.vivaldianalytics.com/r-shiny-1.html You can also try out a free version of Violin, one of my company's survey analysis products here: https://vivaldianalytics.shinyapps.io/Violin/ If you have any questions about my services, please contact me on Skype at luke.green853.

Associated with: Vivaldi Analytics Inc.
$55.00 /hr
13 hours
Tom M.

Tom M. Agency Contractor

The Number Cruncher

United States - Last active: 11 days ago - Tests: 2

Seasoned engineer with over 20 years of experience in complex algorithm development for signal and image processing applications. Have worked in algorithm and software development as both a leader and a follower. MSEE, BSE, BSCS, Math minor and a recent data mining certificate 3 US patents to date Keywords: DSP signal and image processing, quantitative algorithms, pattern recognition and feature extraction, speech/audio processing, speech recognition, biometrics, OCR, C/C++/Matlab/Octave/Python/R/SAS/Weka/OpenCV, data mining and statistics, time series and forecasting, GPS, Google analytics/adwords/maps, MT4 FOREX analytics, data mining, statistics, SIFT/SURF features, NumPy/SciPy/Pandas/Mahotas/PIL/Matplotlib, accelerometer, gyroscope, magnetometer, Raspberry Pi, RPi, ARMA, ARIMA, cointegration

$83.33 /hr
168 hours
Tim Van Boxtel

Tim Van Boxtel


Canada - Last active: 10/20/2014 - Tests: 7

A skilled technophile with experience in many aspects of hardware and software. Sotware: Web Application Development utilizing Flask and Django REST Based API Skilled Python developer Website Development - PHP, HTML5, CSS3, Javascript, jQuery Database Query, SQL, Cypher, Hardware: Electronic Circuit Design. Schematic - PCB I take great care in the quality of my work and forward my rigour and passion onwards

$61.11 /hr
414 hours
Tilmann Bruckhaus

Tilmann Bruckhaus

Data-intensive software development

United States - Last active: 05/13/2013 - Tests: 1

I have been developing software for data-intensive applications for over 15 years. My experience includes business intelligence, data warehousing, Key Performance Indicator reporting, dashboards, Service Level Agreement tracking, application monitoring, recommendations, targeting, fraud prevention, risk analysis, optimization, machine learning, data mining, predictive analytics, funnel analysis, A/B tests, instrumentation, web analytics, and legacy code repair. Technologies I love include Ruby, Python, MySQL, MongoDB, RSpec, Jenkins, Capistrano, CodeClimate, git, R, Weka, SPSS, Hadoop, AWS, S3, star schemas, ETL, refactoring, KISSmetrics, Google Analytics, Omniture, and agile processes.

$40.00 /hr
0 hours
Rowan V.

Rowan V.

Data Scientist

United States - Last active: 04/09/2014 - Tests: 6

I am passionate about quantitative investigative methods and data analysis. I have experience utilizing a variety of methodologies and tools, including R, Python, and Tableau in order to answer data-related questions. I have a B.S. from MIT, and have a strong background in experimental design, statistical analysis, data visualization, and machine learning techniques. I am able to provide writing and coding samples of my past work, for a few of my past projects, please check out https://github.com/rowanv .

$70.00 /hr
9 hours
Dennis Ojwang'

Dennis Ojwang'

GIS Specialist, Statistician and a Researcher

Netherlands - Last active: 1 day ago - Tests: 8 - Portfolio: 3

I am an experienced GeoInformation, Statistics & Data Systems Specialist in research. I use a range of GIS and remote sensing software in research, mapping and development. These include, Esri ArcGIS, Erdas Imagine, ENVI, Mapwindow and Quantum GIS. For spatial database management, I work with PostgreSQL, Multi-user Geodatabases of ArcGIS, SQL Server and MySQL. I am well conversant with Server applications for sharing geospatial data and use OpenGeo suite for applications development. My server applications include; Geoserver and ArcGIS server. As a researcher, I have a very good working experience in statistical analysis for spatial, social and bio-statistics. I use SPSS, R, Minitab, PAST and Excel software for various statistical data analysis. My career objective is to be the best GeoInformation specialist around the world with command in Desktop GIS, Geostatistics, Web Mapping and Spatial database management.

$16.67 /hr
297 hours
Artem Efimov

Artem Efimov

Responsible, careful and reliable

Russia - Last active: 1 month ago - Tests: 12 - Portfolio: 2

I graduated master's degree from the Moscow Institute of Physics and Technology with a degree in Applied Mathematics and Physics. So I have very strong knowledge of physics and mathematics. Currently I am at position of leading engineer in engineering company in power industry. Due to my professional activities I have such skills as: automatic control, industrial control systems (SCADA and DCS), PLC programming (IEC 61131), communication protocols (IEC 60870-5-101, IEC 60870-5-104, modbus TCP and RTU, OPC), electrical grids, mathematical modelling and optimization, statistics and data analysis, MATLAB, VB.NET, VBA and VBScript programming. Due to my personal interests I have such skills as: web-programming (PHP, MySQL, JavaScript and HTML), data and web scraping and crawling. My hobbies are photography (so I have skills in photo editing and retouching in Photoshop) and traveling. Also I have good knowledge of english.

$14.00 /hr
21 hours
Jerry Rd

Jerry Rd

Data Scientist/ DataMining Expert/ AlgorithmResear...

China - Last active: 7 days ago - Tests: 5

I have a master degree of probability and statistics.. I am a R guru. I have 6+ years experience of using R/SAS for statistical analysis and data mining/machine learning. I love my work as statistical algorithm research and implementation. And I am a hard working people. I have done projects in several industries such as Web Research/ Web Application/ Marking/ Financial Strategy/ Medical/ Commercial/ Sports industry. Also I am familiar with C/Perl/Python/Mysql/PosegreSQL/Latex/Javascript. I like to solve problems for my client, please feel free to contact me if you are interested in my skill set. Look forward to hearing from you!

$30.00 /hr
381 hours
Stephane Goldstein

Stephane Goldstein

GIS Analyst

Portugal - Last active: 2 days ago - Tests: 1

Besides the main common GIS tasks, like cartography, remote sensing, generalization and map design, I'm qualified in spatial analysis and geostatistics allowing to make sense of spatial data. I write Python, Matlab and R scripts in order to automate your most commons GIS workflows. Exeperienced with most common proprietary software like ArcGIS, PCI Geomatica and IDRISI, as well as open source tools, including QGIS, GRASS, PostGIS and SPRING.

$25.00 /hr
120 hours