R Freelancers

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R Job Cost Overview

Typical total cost of Upwork R projects based on completed and fixed-price jobs.

Upwork R Jobs Completed Quarterly

On average, 56 R projects are completed every quarter on Upwork.

56

Time to Complete Upwork R Jobs

Time needed to complete a R project on Upwork.

Average R Freelancer Feedback Score

R Upwork freelancers typically receive a client rating of 4.82.

4.82
Last updated: July 1, 2015
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  1. Guangming L.

    Guangming L.

    Data Scientist and R Expert

    United States - Last active: 2 days ago - Tests: 7 - Portfolio: 5

    I'm a data scientist and expert R programmer with 7 years of experience. I specialize in solving mission critical business problems using advanced data analysis, machine learning and web technologies. I'm known for quick turn-around and excellence amongst my clients. I live in Ann Arbor, Michigan, USA (time zone: EST). I'm passionate about finding insights from data and making beautiful data products. In particular, I'm very competent at 1. data scraping 2. data wrangling 3. descriptive & exploratory analysis 4. data visualization 5. inferential & predictive analysis 6. pattern recognition and clustering 7. supervised & unsupervised machine learning algorithms 8. building analytic web apps 9. the R programming language Some of my recent for-fun projects include a couple of analytic web apps and a book on how to do data analysis using R. They are listed under the portfolio section below. Make sure you check them out. I also love to teach people how to use R to do data analysis, and I do that through MasterR.org, an online community where you can receive high quality training materials for FREE. I used to work for FICO, where I built scorecards for the Picture People to predict customer response rates to their marketing campaigns. My scorecards doubled their ROI. I also built customer segmentations for Canadian Tire Bank. It gave the executive team a holistic view of their customers for the first time. I have a master's degree in Biostatistics from the University of Michigan and a bachelor's degree in mathematics from the New College of Florida. I'm an avid MOOC taker, constantly learning new things in the field. I took all the courses in data science, statistics, data mining and machine learning from Coursera, Udacity, Edx, and Khan Academy. I have strong work ethics and respond to all my messages in less than 12 hours. Contact me if you need help with analyzing data. Have a great day! -Guangming

    $100.00 /hr
    611 hours
    4.97
  2. Pavel Logacev

    Pavel Logacev

    Data Science | Statistics | R Programming

    Germany - Last active: 1 day ago - Tests: 4 - Portfolio: 3

    I have a PhD in Cognitive Science and a MSc in Computational Linguistics. I further have several years of experience in statistical data analysis and software development in R. I have developed software in pure R as well as in C/C++/Rcpp, with a focus on the implementation of machine learning algorithms and statistical techniques. I enjoy understanding all kinds of data, as well as helping others understand it and convert it into actionable intelligence. I am particularly interested in statistical consulting regarding the analysis of experimental data, such as from psychology experiments, usability studies or A/B testing in advertisement and e-commerce. I can help you with anything from simple ANOVAs or linear mixed effects models in lme4 to Bayesian methods in RStan. I have experience in analyzing and reporting on data from sectors as diverse as psychology, education, health, finance, SEO and E-commerce. Most recently, I have analyzed online user behavior for www.immobilienscout24.de, and created a Bayesian model of conversion and profitability to manage campaigns on Google Adwords. Take a look at my code on my github profile: http://github.com/plogacev

    $35.00 /hr
    420 hours
    4.93
  3. Benjamin V.

    Benjamin V.

    NinjaTrader, TT, APIs, FIX, R, TradeLink

    Spain - Last active: 2 days ago - Portfolio: 14

    I am an expert quant developer (C#, C++ and R), with a solid background in software development, trading, physics, mathematics, engineering and research. I am experienced coding for traders and quants, and familiar with the mechanisms and workings of securities markets, exchanges and market data (both time & sales and full order book). I am experienced working with - and coding against - trading APIs and other common elements of the client/message server architectures typically seen in trading systems. I am an expert in systematic trading research, simulations, backtests, optimizations, and trading, and in the programming and use of R for statistical empirical finance work. I am the TickMaster ( http://tickmaster.webs.com ). I have degrees in Physics (MA, University of Oxford) and Petroleum Engineering (Imperial College, London). I am a new Elancer (as of September 2013), based in Madrid. My first language is English. I also speak fluent Spanish.

    $85.00 /hr
    1,287 hours
    4.77
  4. Filip Gutowski

    Filip Gutowski

    R Programmer / Web Scraping Expert

    Poland - Last active: 2 days ago - Tests: 2

    I am an experienced R programmer, web scraper and data analyst, ready to use my knowledge, practice and interest in data science to find a quick, reliable and clever way to perform any task you have to be done. My main fields of expertise are: • web scraping and crawling - automatic harvesting data from sources of any kind, complexity and size; • data mining and cleansing - fluent in extracting useful data using fast and flexible tools; • market analysis, statistical computing - finding patterns in data to gain interesting insight, based on solid statistical knowledge and visualised in an approachable way. I strive for excellence in each aspect of the project, guaranteeing maximum focus on detail, providing a solution tailored to the customer's expectations and top-class communication.

    $20.00 /hr
    152 hours
    4.99
  5. Ahsan shafiq C.

    Ahsan shafiq C.

    Top Game Developer / Data Scientist & R Developer

    Pakistan - Last active: 3 days ago - Tests: 2 - Portfolio: 5

    I have 5+ years of experience in Software Development and Design in various leading technologies. I have worked for International Customers and helped them growing their business and expanding the profitability. Over the last 5 years, I have developed a wide range Mobile applications, which include iPhone/iPad/Android/J2ME. I have developed both games and eCommerce applications for iPad/iPhone. I have Masters Computer Science with focus on Data Mining and Machine Learning. I have been doing statistical data analysis in R for 2+ years now and have experience working with a variety of single/multiple regression, multi class classification and clustering techniques. I have been involved in development of: - Ruby on Rails - iPhone/Android Native Applications for the Enterprise - iPhone/Android Games Specialties: iPhone SDK / Android / J2ME / Symbian / BREW / BlackBerry Cocos2d / Cocos2d-x / Unity3D / OpenGL ES / Quartz 2D Box2d / Chipmunk Ruby on Rails (ROR) C / C++ / Objective-C / Cocoa Framework / C#

    Groups: Application Developers Alliance

    $30.00 /hr
    3,366 hours
    4.83
  6. Md Akhtar Hossain

    Md Akhtar Hossain

    Statistical Analyst, R Programmer and Academic Writer

    Bangladesh - Last active: 1 month ago - Tests: 5 - Portfolio: 11

    With my B.Sc. and M.S. in Statistics and with my 7 years’ experience in practical field of research and teaching, I’ve numerous experience of analyzing data and writing publication quality papers/thesis in various fields including technology, business, demography, psychology, medical science, social science, public health, economics etc. I’ve published several research articles in different journals and written several conference papers. Moreover, I've experience of supervising a number of undergraduate projects and graduate theses in different applied fields. These thesis works covered univariate to multivariate statistical analyses with statistical graphics. I have very strong theoretical and applied statistical knowledge with efficiency in statistical computing with different software such as SPSS, SAS, R, STATA, FORTRAN, MINITAB, EVIEWS, EXCEL etc. My core competency lies in conducting statistical analysis using different statistical softwares and writing academic thesis/articles for publication. I also have a very strong skill of independent programming in statistical programming languages. I am seeking opportunities to solve all your issues that requires statistics knowledge. I also have interest in teaching in the field of statistics.

    $30.00 /hr
    2,189 hours
    4.74
  7. Vadim K.

    Vadim K.

    Data Scientist. ML, R, SAS, Python, ETL Developer.

    Russia - Last active: 1 day ago - Tests: 9

    I have 3+ years experience working with data. ETL Developer: SQL, SAS DI, Talend, Oracle DB, GreenPlum DB, PostgrSql, Hadoop, Hive, Pig. Data Scientist/Data Analyst: R, SAS, Python, Machine Learning, D3.js, Spark. I have 4+ years previous experience on developing web applications using PHP, JavaScript, AJAX. Databases: MySQL, Postgresql. Frameworks: JQuery, Code Igniter. CMS: MODx, Wordpress.

    $22.00 /hr
    859 hours
    4.93
  8. Bishwarup B.

    Bishwarup B.

    Statistician (with experience in R, SPSS, Stata)/ Business Analyst

    India - Last active: 1 month ago - Tests: 6 - Portfolio: 5

    Hello everyone, I am a subject matter expert in Statistics with M.Stat from Indian Statistical Institute. I had been working as the Lead Business Analyst and a Sr. Project Manager in a US based firm operating in the financial sector for last four and half years. In October, 2014 I quit the job to focus on full time freelancing. With more than 5 years of experience is Business Analysis, I have dealt deep into the aspects of: Requirement analysis, Solution analysis and Transition analysis Data warehousing and data mining using SQL, SSAS, OLAP, SSIS, SSRS Business Intelligence – dashboard and reporting Project management Management consultant Business plan writing Data science Quantitative analysis Predictive analysis Database development Data manipulation I provide service entailing any kind of Statistical Analysis and Mathematical modelling of data. I can perform: Regression Analysis – Linear, Multiple and categorical Correlation Analysis Time Series Analysis using Moving average, ARMA, ARIMA, smoothing, Seasonal decomposition and forecasting. Evaluation of Autocorrelation Function (ACF) and Partial Autocorrelation Function (PACF). Pattern recognition Data validation and cleansing I am fast and well-versed with Statistical packages like: R SAS SPSS Stata Minitab Microsoft Excel Microsoft Visio VBA My clients include from start-ups to established organizations. I understand the importance of delivering the expected result within specified time frame and most importantly in a constrained budget. As a freelancer, client satisfaction and meeting the deadlines is of utmost priority to me. Clients can contact me 24 x 7 anytime in my email, phone, Skype, Gtalk or any other VoIP. I am completely fine with working in flexible time schedule.

    $40.00 /hr
    56 hours
    4.66
  9. Aaron M.

    Aaron M.

    Data Scientist:Machine Learning, Statistics, R, Python, Java, VB/Excel

    United States - Last active: 7 days ago - Tests: 5 - Portfolio: 1

    I work with clients on defining, implementing and managing data analysis and data management projects. My expertise lies at the intersection of Statistics, Computer Science and Business acumen. Specific areas of interest to me are education, healthcare, finance, real estate, and energy. Analysis: R (statistics), Python (data munging), Java+Scala (machine learning / big data), VB.NET/Excel (financial modelling) ** Apache Hadoop, Hive, Spark with MLlib (big data ecosystem) ** MongoDB, Neo4j (NoSQL) + MySQL, Monetdb (SQL) ** Gephi (networks/social graph processing) ** Weka (machine learning) Visualization: Tableau (rapid dashboarding), Shiny (R package for interactive statistical dashboards) Environments: Linux, Windows, and Mac (least experience) Productivity: Git (source code control) Web Applications: Play 2 Framework (modern Java/Scala-based, reactive websites) I believe the key qualification to be a Data Science practitioner is an analytic and curious mindset. That said, many hiring decisions seem to hinge on specific skills. Let me know if there's a tool or technology you don't see on my list, and I'll let you know if I've worked with it before.

    $200.00 /hr
    956 hours
    4.99
  10. Zlatomir Zlatev

    Zlatomir Zlatev

    Desktop Apps,Databases,Bioinformatics,Statistics,R-project,web Scrap

    Bulgaria - Last active: 1 day ago - Tests: 3 - Portfolio: 2

    I have 14+ years of programming experience and a Master's degree in Bio- and Medical Informatics. I'm good at User Friendly GUIs, Data Reorganization, File Format Conversions (including text and binary data formats), Web Scrapping, Desktop Applications (Visual FoxPro, C# recently), Databases (a lot of experience), Bioinformatics, Statistical Analysis, R-project for statistical computing (including C code compiled for R to speed up some time consuming computations), SQL, Microsoft Office Excel Automation (VBA code sent from a desktop application to Excel to make it do things), Programs to Automatically fill Acrobat PDF Forms, Text Parsing, Mapple, C, C++, C#, Audio/Video formats conversion, Molecular Biology, Genetics and more. Keywords: Bioinformatics, Desktop Applications, Molecular Biology, Genetics, C, C++, C#, Mapple, PDF Forms, edgelist, edge list, Databases, database, Statistical Analysis, R-project, VBA, Automation, Medical Informatics, Algorithms, algorithm, File Convert, files conversion, Text Parsing, parse, user friendly graphical interface, GUI, Audio, Video, website scrap, scrapping, wordcloud, wordclouds, word cloud, word clouds, C#.

    $19.96 /hr
    185 hours
    4.95