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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, 38 Data Science projects are completed every quarter on Upwork.


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 4.85.

Last updated: October 1, 2015

Popular Data Science Searches

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Dmitriy Emelianov

Dmitriy Emelianov

Web applications / Data science

Russia - Tests: 4 - Portfolio: 1

Independent, versatile IT professional with different mathematical and programming skills. Like to solve complicated engineering tasks that requires deep knowledge of various computer science fields. Experienced in Python (web-stack - Django/Tornado/Flask running on Postrgresql or Redis. Scientific stack and data-analysis - Numpy, Scipy, Pandas, Matplotlib, PIL), C# (Linq included) and Unity-3d (2d, 3d, custom shaders). Also have some experience in Javascript (Pure, JQuery, Angular.js). Also familiar with WinRM (Development, troubleshooting).

83% Job Success
$20.00 /hr
98 hours

Pablo García Muñoz

Pablo García Muñoz

R programming, Data Science

Spain - Tests: 4

R developer, I implement different solutions for data analysis, visualization and prediction to help my clients managing their data. I also have broad experience developing in Fortran 90 and Octave for numerical simulation. I am specially focused on data cleaning and exploratory analysis as a mandatory stage, in order to get relevant insights, before moving to complex models.

94% Job Success
$14.90 /hr
283 hours

Jose M. Berutich

Jose M. Berutich

Big Data, Machine Learning, Data Science

Spain - Portfolio: 5

Ph.D in Artificial Intelligence.  Machine Learning, Data mining and Business Intelligence veteran with 10+ years of experience across different sectors including Finance, Retail and Marketing. Data science experience across a broad range of areas, including price modeling, Statistics, and Model Building. Developer of trading algorithms for forex, equities and futures.  - Quantitative Finance - Automated/Algorithmic Trading Strategies Development - Trading Platforms and API  - Backtesting / forward testing and Optimization

79% Job Success
$55.56 /hr
71 hours

Vineeth Mohan

Vineeth Mohan

Data scientist

India - Tests: 1

Auther of the book Elasticsearch blueprints - Elasticsearch certified trainer who have conducted trainer for number of MNC’s like microsoft , flipkart , cisco and philips Live project – Stackoverflow - Stackoverflow Careers - Linkedin - Github - Career (Experience –75 years) • Architect/Data scientist at Algotree Research private limited (June 2011 to Present) • Software Engineer at Yahoo! India (March 2009 – May 2011) • Internship as Service engineer at Yahoo!India (May 2008 – to February 2009) Career highlights and honors received ● End to end design and management of Newsmills from inception to completion. ● Knowledge acquisition and adoption of various open source tools and technologies ( Mahout , Elasticsearch , Opengamma , cleo , Rstudio-server , D3 js , Twitter Bootstrap) to meet the requirements of the management. ● Spot bonus award at yahoo ● Various appreciation awards from coworkers – yahoo ● Chairman of MACS(Model engineering college association of computer science students) – 2008 , various inter collage technical competition awards at collage. Behavioral Competencies ● Clear in-depth conceptual clarity on the subject along with knowledge gathering skills. ● Self-motivated and can work with less or no management. ● Passion to adopt the best suited technology and attain the best performance. ● Clearly sets the boundary between code quality and business deliverables. Technical Skills ● Languages: ● Application level languages – Java ● Machine learning tool – Mahout ● Statistical languages - R ● Scripting – Perl, Shell , Awk , Sed ● Web technologies – HTML,Javascript ,CSS , jQuery , Bootstrap. ● Expert in Technology and Tools : Elasticsearch , Lucene , Opengamma , Cleo. ● Systems: Unix Operating System (LINUX – Ubuntu , Debian , Red Hat) ● Strong computer fundamentals in Data Structures and Algorithms, automata languages and computation.

50% Job Success
$34.00 /hr
95 hours

Alexander T.

Alexander T.

Software Engineer

Ukraine - Tests: 4

I have 10 years of experience in different areas of software development. My most recent experience lies in field of backend development of horizontally scalable solutions for data processing. During last 2 years I have been developing from scratch proprietary framework similar to Apache Hadoop and Spotify Luigi for batch data processing (billions of log records of ad data daily). I used Python as core language to promptly prototype data analytics business logic with a goal to rewrite it in native language without API changes later. This project also involved managing NoSQL databases (TokuMX or MongoDB 3+ with an appropriate storage engine) to process, aggregate and store massive (hundreds of millions daily) number of documents, indexed for further statistical analysis and reports generation. I also have experience in the following areas: - development of web backends in Python using uWSGI and Tornado frameworks - automation of code building and deployment, Vagrant, Docker - C# language and some experience in Java and C/C++ I am an open-minded technology enthusiast with strong algorithmic and mathematical background and keen attention to details. New language, technology or framework required for next project is not a problem to learn at all. I am ready to show positive, constructive and helpful attitude to your tasks.

$25.00 /hr
216 hours

Martin B.

Martin B.

Data Scientist

Argentina - Tests: 1 - Portfolio: 5

For the last three years, I took part in large projects for companies such as Telefonica and involving diverse data science task such as: - Designing predictive models to predict churn, the propensity of clients purchasing certain products and text mining applications. - I have also experience in designing algorithms to optimize the expenditure in google adwords for large accounts. I hold a BSc in Economics and a MSc in Data mining, both from the University of Buenos Aires. I have also taken several online courses in order to learn programming, machine learning, convex optimization among other topics. Regarding programming, I'm comfortable using R, python, SAS and SQL for statistical modelling and data manipulation.

74% Job Success
$38.00 /hr
325 hours

Andrey Ogurtsov

Andrey Ogurtsov

Biostatistician / R programmer

Ukraine - Tests: 1

Biostatistician with 3 years of experience. Favourite programming tools - R and SPSS. Performed works: • definitions of primary and secondary variables; • sample size calculations; • writing statistical analysis plans for phase I-IV and bioequivalence trials; • performing statistical analysis and writing statistical reports; • creating CRF; • data input and verification; • developing correspondent SOPs. STATISTICAL AND MACHINE LEARNING SKILLS: • classical methods of analysis; • general and generalized linear models; • non-linear modeling (splines, GAMs); • tree-based methods (bagging, random forests, boosting); • dimension reduction (PCA); • clustering (hierarchical, K-means); • cross-validation; • bootstrap; • multiple comparisons adjustments. PROGRAMMING SKILLS: • using R functions for wide range of statistical methods; • writing new R functions to implement desired functionality; • data wrangling with basic R functions and packages like reshape2; • data visualization (basic graphs and ggplot2); • automated report generation and reproducible research (knitr with R Markdown or LaTeX); • interactive presentations with shiny, rpanel and googleVis; • SPSS (both GUI and syntax); • SQL (basic knowledge).

$10.00 /hr
0 hours

Alejandro Naser Pastoriza

Alejandro Naser Pastoriza Agency Contractor

Software Developer

Argentina - Tests: 4

- Computer Scientist: Bachelor's degree (GPA %99.4), finishing Master's (GPA: 99%) thesis on Data Managment, "Adaptive Cache Managment for Arbitrary SQL Workloads". - Full-stack Ruby/Python Developer. - Diving into Data Science. - Experience in research & development, both in the software industry and in the academic world (Summer @ EPFL Data Intensive Systems and Applications Laboratory). I enjoy bringing the best of both worlds to combine cutting-edge theory and technology to come up with a solution for real-world problems. - Interested in Data Managment, Information Retrieval, Data Analysis & Visualization, Machine Learning, Natural Language Processing, Web Scraping, Web Development and Research papers implementation. - Familiar with: * Python, Django, Flask, Scrapy, numpy, scipy, pandas, scikit-learn, NLTK, matplotlib, ipython-notebook, bokeh, gensim. * Ruby, SciRuby, Rails, Rspec, Cucumber, Devise, MiniTest, Test Unit, HAML, ERB, Slim, Capybara, I18n, Sidekiq, Nokogiri, Will Paginate, Paperclip, Shoulda, FactoryGirl, OmniAuth, Bundler, Capistrano. * HTML/CSS, Javascript, CoffeeScript, jQuery. * MySQL, postgreSQL, redis, mongodb.

Associated with: Cordatazo

95% Job Success
$22.22 /hr
460 hours

Rob Chambers

Rob Chambers

Python expert and scientific software architect

United States - Tests: 2

I'm a highly trained, expert engineer with excellent academic and industrial credentials. American, native English speaker. My degrees are in Mechanical Engineering, but I've found that my true love is software development. I love working on teams with other passionate and technically savvy people, but I have plenty of experience in management and report-writing. I am currently in the midst of long-term world travel, so I'm looking for quarter- to half-time freelancing work. I can work sporadically and long-term, but I can also settle down temporarily and put in very heavy hours when needed. I'm an expert Python programmer (5+ years experience) and I have several years combined experience in other languages as well (HTML/JS/CSS, MATLAB, C/C++). I am a full stack developer, with experience administering on-site and cloud servers, writing server-side and client-side software, developing complex and parallelized data processing algorithms, and implementing web- and desktop-based UIs. I have worked on many small projects where I am the sole developer, but I have also led 5-10 person teams to develop larger systems. As a mechanical engineer turned software developer, I have a special interest in working at the intersection of software with math, science, and engineering. Fields of interest: Biology, numerical simulation, algorithms, software development. Particular competencies: Taking ownership of solutions from conception to delivery... problem specification, algorithm development, software implementation, testing, and distribution. Skills/tools Python (including Numpy, Scipy, Pandas, Scikit-Learn, Cython, SQLAlchemy, Enthought Traits, Anaconda, IPython Notebooks, etc.). Web and Hybrid Mobile App development (HTML/JS/CSS; AngularJS; Cordova, Ionic), MATLAB (including many toolboxes). Experience building and administering Amazon Web Services (AWS) systems. Comfortable with Windows, OS X, and Linux.

$75.00 /hr
13 hours