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: July 1, 2015

Popular Data Science Searches

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  1. Jovan Pehcevski

    Jovan Pehcevski

    Researcher, Academic/technical writer, Data and Information Scientist

    Macedonia - Last active: 1 day 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
    1,745 hours
    5.00
  2. Aldrin L.

    Aldrin L.

    Architect, Backend Engineer (Scala, Java, Hadoop)

    Brazil - Last active: 10 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
    3,112 hours
    4.82
  3. Juan Luis Herrera Cortijo

    Juan Luis Herrera Cortijo

    Data Scientist

    Spain - Last active: 1 day ago - Tests: 16 - Portfolio: 5

    Do you have some question that requires a statistical or machine learning answer? No problem. As a data scientist with 15 years of experience, I have the technical knowledge and the communication skills needed to solve your problem and, most important, give an answer that you can apply to your field of interest. What I offer to you is a full data analysis/machine learning stack, including: - Getting and organizing your data. - Selecting the most relevant statistical or machine learning technique for your case. - Applying the technique to your data. - Writing a report that explains every step taken and makes a interpretation of the results. All written with enough technical detail, but that doesn't require a depth statistical knowledge to follow. - Assistance in applying the results to your specific field. I can do all this using any or several of the following: R, MATLAB, Python, MySQL. Everybody can apply an out of the shell statistical algorithm to some benchmark data. But I'm an expert in the tricks needed to apply those algorithms to real data.

    $66.67 /hr
    622 hours
    5.00
  4. Guangming L.

    Guangming L.

    Data Scientist and R Expert

    United States - Last active: 3 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
  5. David Mestre

    David Mestre

    Python, Web Scraping, Data Analysis, Data Science

    Spain - Last active: 1 day ago - Tests: 10 - Portfolio: 2

    - 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.

    $33.33 /hr
    884 hours
    4.97
  6. Yuriy Smirnov

    Yuriy Smirnov

    Data integration proficient, Data scientist, Software developer

    Russia - Last active: 1 day ago - Tests: 4

    I'm a Data scientist/Software developer skilled in integration tasks, such as data exchanges, data loading (from Pdf to Excel, from Excel to different databases, from databases to Excel etc), data processing;I also have many years experience in code perfomance improvement in different areas from Sql queries in high-loaded enterprise application and data caching to logical improvements in algorithms. My main job now includes 1C framework. This is a most popular framework for enterprise applications in Russia. Also I have 3 Acm Icpc (International collegiate programming contest) sertificates from half-final сompetitions and a lot of diplomas from different mathematical сompetitions. My English level is between Basic and Conversational (I understand a most part of easy dialog but I can't understand fast or accent voice, complex phrases or some words).

    $30.00 /hr
    29 hours
    5.00
  7. Tom L.

    Tom L.

    Data scientist, Python, R Programmer

    Canada - Last active: 1 month ago - Tests: 9 - Portfolio: 2

    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
  8. Andy D.

    Andy D.

    Algorithm Scientist - Machine Learning, Computer Vision, Analytics

    United States - Last active: 4 days 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 algorithms 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.

    $80.00 /hr
    202 hours
    5.00
  9. Saquib K.

    Saquib K.

    Data Science and Machine Learning Consultant

    Canada - Last active: 20 days ago - Tests: 10 - Portfolio: 4

    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
    123 hours
    5.00
  10. Rowan V.

    Rowan V.

    Data Scientist

    United States - Last active: 1 month ago - Tests: 7

    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. With over 10 years of programming experience and a strong statistical background, I can help you make sense of your data. 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 .

    $80.00 /hr
    9 hours
    5.00