Data Science Professionals & Consultants

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Data Science Job Cost Overview

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

Upwork Data Science Jobs Completed Quarterly

On average, 28 Data Science projects are completed every quarter on Upwork.

28

Time to Complete Upwork Data Science Jobs

Time needed to complete a Data Science project on Upwork.

Average Data Science Freelancer Feedback Score

Data Science Upwork freelancers typically receive a client rating of 4.83.

4.83
Last updated: May 1, 2015

Popular Data Science Searches

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  1. Ahsan shafiq C.

    Ahsan shafiq C.

    Data Scientist/R Developer

    Pakistan - Last active: 23 days ago - Tests: 2 - Portfolio: 5

    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. On the other hand, 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 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
    4.82
  2. Aaron M.

    Aaron M.

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

    United States - Last active: 27 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
    948 hours
    4.99
  3. Pablo García Muñoz

    Pablo García Muñoz

    R programming, Data science

    Spain - Last active: 4 days ago - Tests: 4

    R developer, I have implemented different solutions for data analysis, visualization, transformation and prediction to help my clients managing their raw data. I have also broad experience developing in Fortran 90 and Octave for numerical simulation. I am specially focused on data cleansing and exploratory plotting as a mandatory field, in order to get relevant insights, before deciding to develop a complex model.

    $12.90 /hr
    99 hours
    5.00
  4. Saquib K.

    Saquib K.

    Data Science and Machine Learning Consultant

    Canada - Last active: 4 days ago - Tests: 10

    I am a Mathematics graduate from the University of Waterloo, with 5 years experience in the data science field. I have successfully completed projects in data acquisition, data scrubbing, data mining, machine learning and data piepelines. I also have significant experience in creating data collection framework for government organizations, and non-IT companies. I am currently designing a dynamic pricing model for my client to add to their repertoire of Revenue Management Practices. I am building the data pipelines as well as creating the Machine Learning Models. I am looking for longer term contracts, where I can add value beyond finishing a small preliminary task. I am new to oDesk but I can provide references from outside the oDesk community. Best of luck in your endeavours!

    $80.00 /hr
    114 hours
    5.00
  5. 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 (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
    164 hours
    4.94
  6. Pablo C.

    Pablo C.

    Data Scientist

    Argentina - Last active: 6 days ago - Tests: 4 - Portfolio: 6

    What are the most relevant variables? How are they related (if any)? What values must they take in order to explain some event? I'm familiar answering this kind of questions, as well as making graphs to show information, build automatic systems to process and make predictions, and all kind of data science stuff (founded the site datascienceheroes.com). Further than working as a consultant, I can teach you how to build solutions through R. From Data Science theory to the building and application of your own predictive models, based on your data. Found the e-learning course: http://datascienceheroes.com/learning.html. I've been doing data analysis for the last 9 years, working in several industries such as telco, banking, farming, financial, social network analysis, bio-technology, oil and NGOs. My education is based on Information Systems (holding a PhD degree) Contact me if you have questions to address through data, or if you want to learn R in a very didactic way.

    $44.00 /hr
    222 hours
    4.33
  7. 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
  8. Jarek Zmudzinski

    Jarek Zmudzinski Agency Contractor

    Web application development

    Poland - Last active: 03/14/2011 - Tests: 14 - Portfolio: 13

    In my over 10 years of web development adventure I developed many sites (some of my latest work is in my portfolio) and I grew addicted to coding. About 6 years ago, bored by PHP, I stumbled onto Ruby on Rails which quickly became my favorite tool. I developed 3 large applications by myself and coauthored at least 2 more.I enjoy writing JavaScript code for some time now specializing in jQuery library.For over 4 years I was working as Expert Webdeveloper for largest online auction platform in Central and Eastern Europe, where I share my jQuery expertise among fellow webdevelopers. Later I got promoted to CTO of citeam.pl project (daily deals app). In late 2013 I got another promotion, to IT Manager. I am interested in everything from server administration, Ruby on Rails, node.js backend coding, HTML5, CSS3, JS frontend development to IT leadership focusing on employee engagement.

    Associated with: Toro Negro

    $33.33 /hr
    50 hours
    5.00
  9. Shweta Gupta

    Shweta Gupta

    Machine Learning R Hadoop Data Science Predictive Modelling Expert

    India - Last active: 16 days ago - Tests: 1

    I have worked in India's leading e-commerce company as Senior Research Engineer(Data Scientist).I have 4 years experience in Machine Learning,Data analytics,Data mining,Information Extraction,Social Network analysis, predictive modelling,statistical analysis,R,Weka,Hadoop,MATLAB,python. I have also worked as Research Associate at IIT (Indian Institute of Technology) for a year.I have published research papers in internationals journals and conferenes of repute like IEEE Xplore.I am looking for good quality projects in the above domains.

    $40.00 /hr
    0 hours
    5.00
  10. Thomas N.

    Thomas N. Agency Contractor

    MD student w/ skills: Python, Excel, Data Science/Analysis/Viz/Scrape

    United States - Last active: 2 months ago - Tests: 7

    Over the past 5 years, I have developed a unique skillset that is mainly focused on manipulating, visualizing, and understanding data. As a medical student, I've utilized big datasets distributed by the CDC and other governmental organizations to find and anlayze trends in healthcare for research. My core competency lies in utilizing everything from smaller datasets in Excel to writing complete programming solutions to handle very large and complex datasets. I work primarily in python using the main data science libraries (pandas, numpy, scipy) as well as scrape my own data directly into a database using other python libraries (beautifulsoup, mechanize, scrapy). No matter the project, if my studies allow me to have available time, I can complete your data analysis, database manipulation, and other data related projects for you or your business efficiently and with close attention to detail. I also have experience in the following areas: SQL, MongoDB, Microsoft Access, and javascript libraries such as charts.js or D3.js. I am also very familiar and comfortable with medical terminology and am capable of distilling the information in to more accessible terms. I know how difficult it is to understand sometimes but I am able to generate content or review/edit content utilizing my medical school education.

    Associated with: MD pending

    $55.56 /hr
    3 hours
    5.00