Data Science Professionals & Consultants

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

Data Science Job Cost Overview

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

oDesk Data Science Jobs Completed Quarterly

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


Time to Complete oDesk Data Science Jobs

Time needed to complete a Data Science project on oDesk.

Average Data Science Freelancer Feedback Score

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

Last updated: May 1, 2015

Popular Data Science Searches

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David Mestre

David Mestre Agency Contractor

Python, Web Scraping, Data Analysis, Data Science,...

Spain - Last active: 2 days ago - Tests: 10

- Data cleaning, data analysis, modeling and simulation techniques using Python - MySQL/MongoDB/Sqlite/Sparql/Postgresql - Django framework experience - 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
838 hours
Saquib Kothawala

Saquib Kothawala

Data Science

Canada - Last active: 3 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!

$60.00 /hr
97 hours
Aldrin L.

Aldrin L.

Architect, Backend Engineer (Scala, Java, Hadoop)

Brazil - Last active: 13 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: 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!

$55.56 /hr
3,109 hours
Ivan T.

Ivan T.

Ruby / Rails Architect w/ scaling exp. 8 yrs, 12k...

Russia - Last active: 1 day ago - Tests: 3 - Portfolio: 1

Independent full-stack developer / technical architect skilled in: * Ruby / Ruby on Rails (from edge to legacy) * Scalable, decentralized (modular) applications architecture * Databases: relational (PostgreSQL, MySQL), NoSQL (Redis, Riak, MongoDB, Neo4j), big-data-specific (Google BigQuery, Amazon Redshift) * Background jobs processing: Sidekiq, Resque, delayed_job * Message queuing: RabbitMQ (AMQP) * Client-side tech (HTML5 / CSS3 / JavaScript [native / AngularJS]) * RESTful APIs implementation, integration with any third-party APIs, data harvesting from sites which do not provide an API * Social media integration (authentication, querying, publishing): Facebook, LinkedIn, YouTube, and more * Process: TDD/BDD with RSpec, Cucumber, Capybara, Zeus, Guard * Rails applications deploy, monitoring, maintenance: Heroku, Amazon EC2, Linode, Heroku) * Amazon Web Services infrastructure: EC2, S3, Glacier, Redshift,.. * Version control systems: svn, git (with GitFlow, GitHub Flow workflows) As a back-end technical architect / developer, I can develop scalable and stable multi-node server-side applications and also can evaluate your Ruby/Rails application and make suggestions on possible optimizations / refactoring / adopting best practices. As a team lead, I can divide, regroup, prioritize and delegate tasks to developers, consult developers on best practices, ensure high overal quality of software product. I like challenges, have solid skills of problem solving, do not require supervision to successfully perform my duties. Dependability is also one of my key strenghts (never left my work half-done / half-functioning). If my current rate fits your project's budget, contact me to discuss technical and other aspects — I'm looking forward to it.

$100.00 /hr
12,793 hours
Guangming L.

Guangming L.

Data Scientist and R Expert

United States - Last active: 16 hours ago - Tests: 7

I have 7 years of experience in data analysis. I'm the Chief Data Scientist and founder of, 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, 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
585 hours
Jovan Pehcevski

Jovan Pehcevski

Researcher, Academic/technical writer, Data and In...

Macedonia - Last active: 3 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
1,586 hours
Heikki Arponen

Heikki Arponen

Math PhD Quantitative Analyst and Data Scientist

Finland - Last active: 2 days ago - Tests: 4 - Portfolio: 3

I'm a Finnish math PhD, Data Scientist/Quant and Python expert with expertise also in Matlab and Mathematica. I have around 10 years of experience in academia as a researcher, and a couple of years after that as a freelance consultant mathematician and coder. Here's my business page: Primarily I am skilled in the following mathematical programming subjects: - Time series analysis and modelling (parametric, nonparametric, multivariate) - Machine learning (e.g. Recurrent Neural Networks) - Optimization (LP, QP, Convex, Large Scale ML/TS problems) Other skills: SQL, financial modeling, data analysis, stochastics, stochastic PDEs, wavelets, monte carlo, regression analysis (linear, nonlinear, logistic), time series analysis, econometrics, VARMA etc., econophysics, nonlinear dynamics, portfolio theory, CAPM, factor models, GARCH, VaR, neural networks, backtesting, algorithmic trading Here's me at LinkedIn: Github: List of publications:

$65.00 /hr
233 hours
Joan Tura

Joan Tura

Science research-Science writer-Blogger-Data entry

Philippines - Last active: 16 hours ago - Tests: 2 - Portfolio: 3

Professionalism is my paramount priority in dealing the jobs. I am well motivated and self-driven person with high level of efficiency in writing anything and willing to learn everything. Looking for any opportunity to enhance my ability as well as to share my inherent knowledge in writing scientific paper.

$12.22 /hr
1,663 hours
Juan Luis Herrera Cortijo

Juan Luis Herrera Cortijo Agency Contractor

Data Scientist

Spain - Last active: 2 days ago - Tests: 16 - Portfolio: 7

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.

Associated with: Data Crunchers
$44.44 /hr
383 hours
Habet Madoyan

Habet Madoyan

Armenia - Last active: 10 days ago - Tests: 4 - Portfolio: 1

I have about 8 years of working experience in conducting statistical analysis. I have Ph.d From National Academy of Science of Armenia and MBA from University of Missouri-Columbia. My core advantage is that i have experience in both practical business and statistical analysis. I know what statistical method is appropriate for different business issues. From my experiences i also learned how to properly communicate findings of statistical analysis to the "non-statistical" audience I have done statistical analysis in market research, to support different government policies, etc. I am SPSS Level I certified specialist. I am competent in Microsoft Excel modeling, in SAS programming and using T-SQL for business analysis.

$22.00 /hr
21 hours