Data Science Professionals & Consultants

Browse Data Science job posts for project examples or post your job on Upwork for free!

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

More options
Clear all filters
  1. Guangming L.

    Guangming L.

    Data Scientist and R Expert

    United States - Last active: 22 hours ago - Tests: 7

    I have 7 years of experience in data analysis. I'm the Chief Data Scientist and founder of Cabaceo.com, a data science consulting company in Ann Arbor, Michigan, US. I also teach people how to do data science using the R programming language at www.MasterR.org, where you can receive high quality training materials for free. I used to work as an analytic consultant for FICO, where I built scorecard for Picture People to predict customer response rate to their marketing campaigns, which doubled their ROI. I also built customer segmentations for Canadian Tire Bank, which gave the executive team a holistic understanding of their customers for the first time and resulted in a chapter of a book. More recently, I have built a linear regression model to explain the relationship between interest rate of peer-to-peer loans and borrowers' characteristics using data from LendingClub, a two-level clustering-and-randomForest model to predict human physical activities using smartphone data, a logistic regression optimization based on precision and recall, a R-implementation of the cross-sectional regression and quintile-portfolio construction methods published in the Journal of Economic Literature. I have a masters degree in Biostatistics from the University of Michigan and a bachelor's degree in mathematics from New College of Florida. I'm an avid MOOC taker, constantly learning new techniques and tools in data science and machine learning. I took all the courses in data science, statistics and machine learning from Coursera, Udacity and Edx. I respond all my messages in less than 24 hours.

    $100.00 /hr
    608 hours
    4.97
  2. Jovan Pehcevski

    Jovan Pehcevski

    Researcher, Academic/technical writer, Data and Information Scientist

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

    As a PhD in Computer Science, I am an experienced researcher, academic writer and data and information scientist. Over the last 12 years I have gathered an extensive experience in practising and teaching the following computer science concepts: information retrieval, data mining, machine learning, database management systems using MySQL and Oracle, native XML databases using XML, DOM and SAX, web development techniques using (X)HMTL, DHTML, PHP, and MySQL, deploying web services and service oriented architectures, and tuning Apache web server for performance, security and caching. My core competency lies in academic research, data and information science, as well as writing, proofreading and editing of research papers and thesis of all academic levels. I am seeking opportunities to offer my rich professional and academic experience for the strategic growth and developmental needs of your business. My core research interests and strengths are as follows: - Focused information retrieval - Evaluation of focused and content-oriented XML retrieval - Entity retrieval and knowledge discovery - Data mining and big data analytics - Business intelligence and predictive analytics - Time-series data forecasting - Recommendation algorithms for social/news networking sites - Native XML databases, NoSQL and relational database systems - Web servers and web technologies - Web database applications and Internet programming - Web and enterprise security

    $66.67 /hr
    1,640 hours
    5.00
  3. Aldrin L.

    Aldrin L.

    Architect, Backend Engineer (Scala, Java, Hadoop)

    Brazil - Last active: 8 days ago - Tests: 12 - Portfolio: 1

    Over the past 15 years I've worked with projects ranging from Startups to Fortune 100s. From C++ to Scala, past assignments involved: - Protocol Design in C++/Delphi - Java API Publishing - Maven Plugin Development - Distributed Systems using RESTful backends - Scala / Akka Design - Jenkins Plugins Writing On a daily basis, I spend between Systems Architecture, Build Planning, for Hadoop and Restful Backends, specially under Amazon Web Services. Oh, I'm also a Cloudera Certified Administrator and Developer. Favorite platforms include Scala, Python and General Java. See my full profile for more descriptions and feel free to browse my github and bitbucket profiles at the addresses below: http://github.com/ingenieux http://bitbucket.org/aldrinleal Favourite customers involve pragmatic teams, with contant online presence, and direct involvement with the end customer, and a problem involving legacy and the next generation Feel free to discuss our next project - I'm always looking for the next challenge!

    Groups: LoginRadius, Microsoft Certified Professionals

    $55.56 /hr
    3,102 hours
    4.82
  4. Tom L.

    Tom L.

    Data scientist, Python, R Programmer

    Canada - Last active: 7 days ago - Tests: 9

    Over the last 12 years, I worked as research assistant/associate in data analysis. I developed algorithms in processing and performing statistical analysis using R, Perl, Java. I am proficient in various Microsoft Office Applications especially MS Excel, MS Word, and MS Powerpoint. I have strong oral and written communication skills. I am a strong self-starter and able to work well independently. I am hardworking and can work effectively as fast as I can.

    $27.00 /hr
    32 hours
    5.00
  5. Andy D.

    Andy D.

    Algorithm Scientist - Machine Learning, Computer Vision, Analytics

    United States - Last active: 1 day ago - Tests: 1

    For managers in companies who have a complex manual process in need of automation. I am an algorithm scientist with Masters Degree in Signal Processing from Purdue University, and a penchant for outside-the-box thinking. I offer innovative algorithm designed to solve challenging and costly problems. I have over eight years experience designing algorithms, and pull from a rich background of skills and knowledge including: Machine Learning, Computer Vision, Image Processing, Genetic Algorithms, Neural Networks, K-Means Clustering, Support Vector Machines,Time Series Analysis, Fourier Analysis,Regression, System Design and Modeling, Linux System Administration, Website Data Extraction, Statistical Analysis, Predictive Analytics, Matlab Modeling, and C/C++ Programming. Unlike other algorithm scientists, I have leadership and communication skills that can be leveraged to help guide teams of developers to implement customer-facing or real-time versions of the solutions provided.

    $60.00 /hr
    134 hours
    5.00
  6. Taras Pashkevich

    Taras Pashkevich

    Master of PHP, JS, Expert in Python

    Ukraine - Last active: 1 month ago - Tests: 10 - Portfolio: 2

    Mostly do backend jobs (highload, security issues, architecture, algorithms), good in jobs that require high responsibility. I can create the system from code to production configuration. Have experience with Java desktop applications creation. Do TDD, UnitTesting, write documentation and produce clean code. Familiar with design patterns, use them where they're needed. Code in Python on my free time.

    $25.00 /hr
    35 hours
    4.86
  7. David Mestre

    David Mestre Agency Contractor

    Python, Web Scraping, Data Analysis, Data Science, Translation

    Spain - Last active: 1 day ago - Tests: 10

    - Data cleaning, data analysis, modeling and simulation techniques using Python - MySQL/MongoDB/Sqlite/Sparql/Postgresql - System administration - Machine Learning - Web scraping/crawling with python - Parsing xml/csv/json - Python libraries: pylab, matplotlib, pandas, ggplot, numpy, csv, re, json, urllib, urllib2, socket, httplib, sklearn, BeautifulSoup, selenium, requests, lxml, xml, sys, so, subprocess - IDEs: iPython notebook, Komodo Furthermore, I am specialized in editing scientific and technical texts and proficient in American and British English. I'm a native Portuguese speaker living in Spain since 2008, I can offer you translations from English to Portuguese or Spanish at a reasonable price. Whether you need to translate a casual or formal text I can provide you with a prompt and culturally sensitive translation.

    Associated with: TalkDocs Pro Agency

    $33.33 /hr
    854 hours
    4.96
  8. Thomas N.

    Thomas N. Agency Contractor

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

    United States - Last active: 1 month 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
  9. 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. Currently @Twitter, formerly at Spartz, Inter-American Development Bank, and Cambridge Energy Labs. 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 .

    $170.00 /hr
    9 hours
    5.00
  10. Ahsan shafiq C.

    Ahsan shafiq C.

    Data Scientist/R Developer

    Pakistan - Last active: 21 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