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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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Tayyab T.

Tayyab T. Agency Contractor

Chief Technology Officer

Pakistan - Tests: 2 - Portfolio: 2

I have a MS(CS) from Stanford University with a specialisation in AI. My work at Stanford was concentrated around information retrieval, natural language processing and understanding. In addition, I am also interested in statistical data analysis and big data.

Associated with: Red Buffer

93% Job Success
$33.33 /hr
2,696 hours

Thomas N.

Thomas N. Agency Contractor

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

United States - Tests: 7 - Portfolio: 6

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

92% Job Success
$55.56 /hr
3 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
218 hours

Andrey D.

Andrey D.

Python developer

Russia - Tests: 3 - Portfolio: 1

Hello, my name is Andrey Druzhaev. I'm a PhD-student of National Research Nuclear University “MEPhI”. My work is focused on Software Development. During my study and scientific work I got a broad expirience with Python 2 and 3. Such library as numpy, scipy, matplotlib are well-known for me. Also I have experience in web-programming both frontend (html, css, js, jQuery, Ajax) and backend, but I prefer backend. For web backend development I usually use Pyramid framework with different databases (MongoDb, ZODB, SQLite under SQLAlchemy). I can work both under Windows and under Unix, can help you with Latex. I like to communicate with client, always try to meet his/her needs. I have experience in team work, know SVN and Git.

100% Job Success
$20.00 /hr
37 hours

Eugene Krevenets

Eugene Krevenets Agency Contractor

Full Stack Developer (Node.js/Python/Angular.js/React)

Montenegro - Tests: 3 - Portfolio: 9

Hello, I'm full-stack developer with a higher mathematical background. # My Skills * Front end: AngularJS/ReactJS, RequireJS/Gulp, SASS/LESS, coffeescript, three.js, canvas, WebRTC, webgl, mobile,, phonegap * Back end: Node.js, Python Django, Jinja2, flask, MongoDB, MySQL * ENV: VBox, Vagrant, Docker * Principles: TDD, BDD, CI, SOLID * Public services APIs: 4sq, Facebook, Google, Instagram, OpenStreepMap,, Twitter, UserVoice, YouTube and other * Other: Mathematical model, AI # Briefly about me: ## Freelance I worked in many projects: * high secure mail box (go, angularjs, babel, postgresql) * media storage (Dropbox-like) (angular.js, stripe, pyramid) * t-shirt market (node.js, mongodb, angularjs, stripe) * DIY market and planner (node.js, mongodb, angularjs) * speech recognising service (python, django) * artist management system (python, backbone, flask) * training games (angularjs) ## Social-net startup I was working on startup - Realaxy - its a 3d social net. Here is our widgets We have created a flash application with tons of 3d, heavy UI and strong interaction with the server REST API. ## Gamedev I was working in Gamezhero ( studio as a developer and team leader for a more than five years. There I have developed tons of casual games and game frameworks. ## Pet projects ### IT events organizing ### Game engine It is javascript game engine main focused on complex, multilayered architecture for maximum flexibility of game objects: ### Other projects In free time research javascript for client side, also for server side (node.js). Developed some mobile application for Android and Blackberry Playbook. Also lead some tech-blogs: * (English version) * (Russian version)

Associated with: jakijak

97% Job Success
$38.89 /hr
3,131 hours

Sarosh Ali

Sarosh Ali Agency Contractor

Writer, Teacher and Data Scientist

India - Tests: 1

I am a M.Sc. in Physics and have pursued research here in India and abroad. Currently trying to gain experience in writing, social sciences and data science. I have a sound computational and scientific background . Proficient in R, Matlab, C and Fortran. I am well versed in Neural Nets, Machine learning , NLP, Predictive Modelling, calculus, probability, path integrals etc.,. I am a amateur writer and I have a good hand at both technical and creative writing. I have a keen interest in social sciences and good general knowledge.

Associated with: blazonlabs

$30.00 /hr
100 hours

Jovan Pehcevski

Jovan Pehcevski

Data and Information Scientist with Academic writing experience

Macedonia - 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

88% Job Success
$66.67 /hr
1,748 hours

Mechelle gay M.

Mechelle gay M.

Chemist, Chemistry Instructor

Philippines - Tests: 1 - Portfolio: 2

I am a chemist with a graduate degree in Chemistry I taught Chemistry both lecture and lab courses in college level and I'm interested in doing technical and scientific research especially with something that has to do with chemistry, biochemistry, organic chemistry, synthesis and modern materials. I am also interested with writing research and business proposal related to chemistry and sciences.

85% Job Success
$11.11 /hr
784 hours

Karthikeyan J

Karthikeyan J

Expert Programmer with Scraping/Parsing/Crawling/Data Mining skills

India - Tests: 3 - Portfolio: 3

Im Karthikeyan as a freelancer believe that my success depends on the benefit my clients receive on choosing to work with me. I have 4+ years of experience in PERL scripting language, Data Harvesting, Scraping/Crawling and Web research, etc. I assist five individuals and we work here as a team. I go extra miles for my clients to make them happy and most satisfied. I believe that only satisfied clients and happy team members make a business successful. Our values are reflected in our interaction and we are passionately dedicated to delivering over and above what has been expected. I strive to keep up high standards of service and make sure that every recommendation I make to help you meet your goal is only after careful analysis and research. What I do – Our Offerings Data Aggregation Services: • Data Engineer in Data Extraction, • Data Clustering, Data Transformation, • Data Aggregation, Data De-Duplication, • Data Normalization, Data Classification & Data Clustering. • Data Cleansing • Data Mining • Data Enrichment • Data Standardization • Product Taxonomy Development • Duplicate Identification • Competitor Cross Reference • Competitor Price Analysis • Data Migration • Data Feed Creation Shopping Cart Solutions: • Magento Product Upload • Yahoo Store Data Entry • X-Cart Product Entry • BigCommerce Product Entry • Zen-Cart Product Entry • Shopify • OpenCart Product Upload Product Catalog Management Services: • Catalog Building & Indexing • Catalog Content Management • Catalog Conversion • Product Classifications • Image Editing & Resizing SEO Services: • OnPage Optimization • Shopping Cart SEO • eCommerce Website Analysis Graphics Design Services: • Icons design for applications • Banners and other web graphics • Logo design for web or print use Image Editing Services: • Image Retouching • Image Resizing • Image Conversion • Image Enhancement • Image Background editing I offer a "no obligation" free trial, because Im are confident that once you experience me, you won't think of going anywhere else! Our Specialization • Expresso Regex Software • Microsoft Office • Abby transformer • visual Web ripper • DQS • C • Perl • SQL • HTML • Java Script • MS office • Web Designing, • LOGO Designing • Photoshop. Why hire me • Outstanding client support • Experienced professional service • Great teamwork • Enhanced Flexibility • Improved Execution Quality • Operational excellence • Create more customer satisfaction • Free Trial • 24*7 support My footprints * Scrap Companies information from SEC (U.S. Securities and Exchange Commission), Registration Authority, Regulation Authority, Public Websites. * Scrap Product information from E-Commerce sites like eBay, Amazon, Wall mart, Yahoo! Auctions, Craigslist and Overstock etc. * Scrap store location and Company address from Google Maps, Yahoo Maps, Google plus and company websites. * Scrap Stock Information and Companies Financial data from Stock Exchange(NYSE, NASDAQ, London SE, ASX, BSE, NSE) and Third Parties(Google Finance, Yahoo Finance, Investorsec, OCT:BB, MSN Finance, Bloomberg Business week, Market Watch, Reuters, S&P, Investor Guide. * Scrap Product Information and Companies Information from API's like eBay API, Amazon API, Google API, Yahoo API, Shopzilla API, Wikipedia API etc. * Automation Projects like File Conversion, Creation of mailing lists by scraping emails from websites, Document Cleansing and Consolidation, Clustering similar data to identify duplicates, SERP scraping and Page rank scraping, price comparisons from different websites, Document Download/Upload, FTP Download/Upload etc. Looking forward for working with you. Thank You.

95% Job Success
$4.46 /hr
921 hours

Allen grace N.

Allen grace N.

Research Assistant

Philippines - Tests: 4

I graduated my Bachelor of Science in Biology and Master of Science in Biology degree from the University of the Philippines in the Visayas. I worked as Research Assistant from 2008 to 2014 under the Oil Spill Response Program of the university. I am currently working as an RA doing ecological researches in the city of lloilo, Philippines. I can do scientific researches as well as simple and complicated researches in any discipline. I can also make articles in different interesting topics. I am computer literate and can do a lot of stuff. Though research is my main strength I can also make powerpoint presentations, templates, data encoding, etc. I am a diverse kind of a person and always opt to challenges. I always make sure to deliver quality output to my clients. Please contact me here at odesk or email me at if you need my services. Thank you.

69% Job Success
$6.50 /hr
337 hours