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56

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R Upwork freelancers typically receive a client rating of 4.82.

4.82
Last updated: July 1, 2015
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  1. Rahul Singh

    Rahul Singh Agency Contractor

    Search/NLP/Semantic/Predictive Models/Machine Learning

    India - Last active: 06/18/2014 - Tests: 3 - Portfolio: 3

    I have good experience in the field of big data, machine learning, search, natural language processing, semantic web and knowledge modeling. I have worked on Named Entity Recognition, RDF, SPARQL, JSON, XML, Hadoop, Mongodb, Couchdb, ElasticSearch, Solr, Lucene, Mahout, R, Gate, Apache-Jena, Dbpedia, Ektorp, Weka, Jackson. I have a good experience in programming languages such as Java, R, SAS, Python. I have extensive experience of applying machine learning algorithms to solve complex business problems. I am a post graduate in Electrical Engineering, IIT Kharagpur (2004-2009).

    Associated with: OSBII Agency

    $55.56 /hr
    3,615 hours
    5.00
  2. Lilit Nersisyan

    Lilit Nersisyan

    Bioinformatics Researcher

    Armenia - Last active: 2 months ago - Tests: 3

    I'm a Bioinformatics researcher with background in biology and computer science. I effectively implement Java, R and Matlab programming skills for scientific problem solving and research. I have research and software development experience in sequence analysis, high throughput data analysis, biomolecular network analysis, and protein structure modeling. I also have working experience in image processing. Areas of my competence include software development, biomedical data analysis, biological research and academic writing.

    $22.22 /hr
    1,295 hours
    0.00
  3. Ahsan shafiq C.

    Ahsan shafiq C.

    Top Game Developer / Data Scientist & R Developer

    Pakistan - Last active: 1 day 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
    3,418 hours
    4.83
  4. Philip O.

    Philip O.

    GIS EXPERT

    Kenya - Last active: 2 days ago - Tests: 8 - Portfolio: 5

    To provide seamless, platform-independent, timely, and open access to integrated data, products, information, and tools with sufficient accuracy and precision to address associated global changes. KEY FEATURES: Spatial data infrastructures (SDI), Interpreting Satellite Imagery and Aerial Photographs.GIS, Remote Sensing and CAD software: ArcGIS, QGIS, MapWindow, GRASS, CAD Family, City Engine, QGIS, MapWindow, Cartalinx, Corel Draw Suite, ENVI Suite, GeoVIS, GPS Pathfinder Office, IDRISI Family and Various Statistical softwares. Spatial databases: Postgres/ PostGIS,ArcSDE, MS SQL Server, MS Excel/ Access. Proficient in SQL, Knowledge in Web map programming: Google Earth/ Maps and Openlayers, Fluent in Javascript, HTML, CSS

    $14.89 /hr
    1,356 hours
    3.75
  5. Olivier Tisserand

    Olivier Tisserand

    Senior Software Architect

    Spain - Last active: 10 days ago - Tests: 1 - Portfolio: 1

    French Senior Software Engineer with a career structured in several axis : - DevOps technologies (Vagrant, Chef, Amazon AWS, VirtualBox, Jira, Confluence, Crucible, svn) - Testing Automation (Hudson, Jenkins, Cloudburst, JUnit, JBehave, Cppunit) - Senior Software architect : Java, C#, C++, Ruby, RoR, Python, Oracle, SQL Server, MySQL. - Data mining solutions linked with SQL databases.. - Data acquisition systems and monitoring, Building Intelligence, Protocol handlers. - Statistics and Numerical analysis (R language, Eviews, Matlab, Scilab) - Artificial Intelligence and specific languages, with industrial applications. - PPC Statistics & API (Adwords, Adcenter) - Networking with a Wireless Internet Provider (Mikrotik specialist). - Business Intelligence With 25 years experience in France and Spain as Consultant Engineer in various business environment, able to handle and develop projects involving multiple environments and technologies.

    $33.33 /hr
    3,025 hours
    5.00
  6. Benjamin V.

    Benjamin V.

    NinjaTrader, TT, APIs, FIX, R, TradeLink

    Spain - Last active: 4 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
    1,348 hours
    4.77
  7. Jean M.

    Jean M.

    Consultant

    Canada - Last active: 6 days ago - Tests: 13

    Twenty years of experience in software engineering and data management for regulated industries with strong emphasis on the Quality Management of the Software Development Life Cycle. Over the last 10 years, I have developed a wide range of applications based on mobile, web based, and OO technologies including Java (android, J2ME, GWT, GAE) , DHTML & Javascript, Python, PHP, and using SQL and GAE databases. My core competency lies in software design, coding, and testing. I am seeking opportunities to develop or transpose applications on recent technologies (android, GWT, GAE, Amazon cloud). I also have some past experience in project management, ISO implementation, technical writing and translations, and knowledge of Fortran, Pascal, C++, C#, and Unix.

    $83.33 /hr
    1,090 hours
    5.00
  8. Johnson Z.

    Johnson Z. Agency Contractor

    C/C++/UNIX/Game/Network programmer

    India - Last active: 1 day ago - Tests: 5 - Portfolio: 4

    I am an engineer with exensive and wide ranging experience, creating various applications/libraries in the financial domain. I have years of experience creating low latency/high frequency trading applications for a leading investment back (in C++). Apart from HFT, I have also implemented trading/market data applications in the medium latency space for clients using 3rd party APIs like Interactive Brokers. I have also worked on trading languages like Taipan, MQL4 etc to create various strategies for clients. My professional experience also involves significant projects on network programming and creating high performance applications/libraries making use of UNIX technologies like mmap/shm etc. Apart from that I also have experience on OpenGL having made two 3D games in Windows/C++ (directly using Win32). I am also strong at wxWidgets and MFC. I have been part of significant cross technology porting/wrapper projects especially between python, C++ and Javascript using tools like shedskin and emscripten compiler. Area of expertise: C/C++, Unix, SQL, Win32, OpenGL, wxWidgets, Python, TCP/IP, MFC, Apache, Nginx, Emscripten, Shedskin

    Associated with: Kefas Softwares

    $20.00 /hr
    4,099 hours
    5.00
  9. Jaynal Abedin

    Jaynal Abedin

    Expert Statistical Analyst

    Bangladesh - Last active: 2 days ago - Tests: 3 - Portfolio: 3

    I have more than five years of work experience in data management and validity checking in statistical analysis, with additional expertise in programming with R and STATA. Skilled at designing and analyzing epidemiological studies, having completed training in statistics for epidemiology, impact evaluation in health interventions and targeted learning. Have facilitated training courses on basic statistics, epidemiological statistics and R and STATA. I have facilitated STATA training for more than 250 researchers. I have experience in machine learning field too and I have conference paper in this field. Also I have completed machine learning course from coursera. Currently doing PhD in Data Science Track. Specialties: Bio-statistical techniques, Causal Inference, Machine Learning, Data Mining Core computing skills in R, STATA, R, SAS and SPSS

    $33.33 /hr
    1,455 hours
    4.97