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On average, 30 Data Science projects are completed every quarter on Upwork.

30

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Data Science Upwork freelancers typically receive a client rating of 4.86.

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Last updated: September 1, 2015

Popular Data Science Searches

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  1. Victor De Buen

    Victor De Buen

    Statistical consultant

    Spain - Tests: 1

    Over the last 20 years, I've developed a wide range of tasks about statistical models, including software development, model building and massive data catching and handling. I'm specialized in bayesian models, both dynamic (ARIMA, VECAR, Bass diffusion) and static ones (Probit, Logit, Counting Regression) applied in multiple real world problems like sales forecasting, churning, pricing, quantitative marketing, macroeconomic and commodity forecasting, for dozens of medium and large enterprises in several sectors as telecom, finances, energy, mining, retailing or agriculture. There are some examples Telefónica (ARIMA-Bass hierarchical models to forecast launching of new products) Livraria Cultura ([Brazil] Massive X-ARIMA Models to forecast millions of pairs SKU-store Vale do Rio Doce ([Brazil] Models forecast of iron ore prices) Monsanto ([Brazil] Bayesian model to forecast area planted with winter maize in Parana and Mato Grosso) Coke (Effect of long-term advertising) Bayes (Combination of macroeconomic forecasts) La Voz de Galicia (daily distribution for point of sale and promotional analysis) Banco do Brasil (Demand Cash) Attentive Chile (Charning) Scrapping and storing of world meteorological gridded hourly data and forecast Telefónica (Indexed query language over compressed binary data) Bahía de Bizcaia (Electricity price schedule) Telefónica (Launch anlysis of broadband product Imagenio) TeleSP (Promotions and churning) TeleSP (Brazil) (Application of lines and consumption by type of traffic) Microsoft Business Solutions (forecast sales and product classification of ERP Navision partners) FEDA (Andorra) (hourly consumption and optimization of hydropower resources) Telefónica (Analysis of competition and churning) Mercadona (sales forecast for the optimization of resources) Credit and Surety (macroeconomic model for pricing) CATSA (Canal +, CSD) (forecast calls and optimization of HR for the call center) ENUSA (On-line calculator for statistical functions) Recoletos Group (MARCA) (Sales and promotional analysis) Telefónica (automatic ARIMA modeling of time series) I'm experienced in C++, SQL, R, PHP, Python and I've created the open source programming language TOL (Time Oriented Language)

    $116.67 /hr
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  2. Mark Clancy

    Mark Clancy

    mongoDB Expert

    Canada - Tests: 1 - Portfolio: 1

    Mark is a seasoned database professional with over 20 years of experience in data architecture & modelling, business analysis, analytics / business intelligence, data visualization, “big data” and dashboards. He began his career with Andersen Consulting (Accenture) and then founded IGENO in 1999. Mark has consulted in Canada, the United States and Australia and across a variety of industries including oil & gas, healthcare, telecom, retail, financial services, tourism and hospitality. He holds a Bachelor of Engineering (electrical) from the University of Victoria and an MBA from the University of Western Ontario (Ivey).

    $90.00 /hr
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  3. Ataollah Etemadi

    Ataollah Etemadi

    Project Management and Big Data Guru

    United States - Tests: 1

    30+ years experience in project management and Big Data. After obtaining my PhD when I turned 24, I started working as a space scientist on high-profile NASA, ESA and IKI missions. Later in my career, my work involved management of large-scale multinationals teams as well as much smaller dedicated teams. I was the software engineer for the multi-billion dollar Infrared Space Observatory and Cluster missions. My background also includes Computer Vision and Artificial Intelligence research. I am deeply familiar with project management and the analysis of Big Data especially time-series. I have also published a number of scientific papers on space science and pattern recognition. On oDesk I have been managing teams of software developers and delivering results since almost it's inception. As of this article I am number two on oDesk for the Test for Independent Contractors and Staffing Managers where I was number one for some years. My core expertise and true passion is project-management especially when dealing with software or Big Data. My private time is spent as the president of the Austin Inventors and Entrepreneurs Association and in producing and hosting two TV talk shows.

    $300.00 /hr
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  4. Vasileios Fragkas

    Vasileios Fragkas

    Data Scientist & Java Developer

    Greece - Tests: 3

    I am well-versed in Software development, with knowledge and experience in Java. I have programmed various applications, and I am capable in Object Oriented Programming. I also have SQL and Database Design knowledge, having created databases in the past. Since July 2014 I have also been studying Data Science through Coursera, edX and other platforms, and I can use R to manipulate datasets, derive conclusions and prepare machine learning algorithms. I can use various preparation (data cleaning, data selection, charts, etc), pre-processing (centering, scaling, PCA, Imputation, etc) and modeling (Inference tests, Regression, ANOVA, Classification, Random Forests, Boosting, Bootstrapping, etc) methodologies. I also know Excel (data manipulation, charts, Pivot tables, Lookup, Optimization) and VBA. Currently I am learning Android. I have a wide range of knowledge in many fields (although I am not specialized in any of them), which allows me to utilize data more effectively than someone who has no idea how the data are related and simply tries to combine them randomly. My interests include (but are not limited to) Astronomy, Meteorology, First Aid/Medicine, Information Technology, Economics, Psychology, Artificial Intelligence and Computer Graphics. Finally, I can work both in teams of any size, as well as alone, and carry out my tasks responsibly and in time. I am used to handling deadlines, and I have worked with many teams in various settings (corporate, army, university, etc). You can find more about me in the following sites: https://gr.linkedin.com/pub/vasileios-fragkas/9b/8b5/7b6 https://github.com/Twilight-Hacker https://plus.google.com/u/0/115934857925554627693/about A personal blog is also being prepared and will be added soon.

    $13.89 /hr
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  5. Emilio Zunino

    Emilio Zunino

    MBA | Entrepreneur | Strategic Planning Analyst

    United Kingdom

    Experienced pricing & planning analyst, MBA graduated, serial entrepreneur. Four-year experience of business modeling, analytics, advanced excel and VBA for pricing and revenue management tasks and strategic planning projects. MBA student with specialization classes in SEO, applied business modeling and entrepreneurial finance. Entrepreneur currently working on a startup related to delivery services. Consultant for entrepreneurial finance, business planning and analytics.

    $10.00 /hr
    0 hours
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  6. Richard Rosenow

    Richard Rosenow

    Human Resource Data Science & PMP Project Manager

    United States

    I have a fascination with people and people analytics. I get fired up about the evolution of Human Resources into a data driven function. Here's what I bring to the table: Fluent in Business: I am an MBA student at Vanderbilt focused on Human Resource analytics and quantitative Marketing. I will be able to present to you and your business in a way that allows you to execute on complex business insights. Operations background: I've worked in many different parts of business from financial roles, to org design projects, to PMO positions. I have a depth of experience in workforce planning and analytical roles, but I am comfortable working across the business to achieve goals. Analytical Expertise: I am an expert at building dynamic tools and models that allow users to solve business objectives with their data. Examples of tools used includes Excel, VBA, Tableau, Business Objects, R and ArcGIS. Project Management Professional: I am a certified project manager and have managed large scale projects for organizations including the wind-down of a business with $10m in annual revenue. I'm interested in meeting people in the HR analytics / WFP space and learning about roles that focus on building people analytics functions within a business. If you work for a company or know of a company that is performing high quality data analysis in its HR function or looking to build HR capabilities focused on this area I'd love to hear from you. Specialties: Human resource analytics, R programming, data science, organizational design, project management, statistical analysis, model development, excel modeling, critical thinking, SAS Business Objects, ArcGIS and GIS mapping.

    $50.00 /hr
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  7. Anis Mirra

    Anis Mirra

    Data Analysis, Consulting

    Greece - Tests: 5

    Undergraduate Student of Physics and Astrophysics, University of Florence (IT). Qualified in R programming, SQL, Python and C++. Specialisation: • Data analysis • Data visualisation • Descriptive and predictive data mining Methods and Tools: • Statistical Analysis • Programming in R • SQL, Python, C++

    $30.00 /hr
    0 hours
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  8. Francisco M.

    Francisco M.

    Data Scientist

    United Kingdom

    Graduated in Economics, I have a master in economics analysis and a postgraduate certificate in operations management. I consider myself a data scientist with strong commercial orientation and working experience in several countries and cultures. I have developed projects in different sectors: chemicals, tourism, higher education, consulting, creative industries. Proficient in data analysis, including management accounting and finances.

    $150.00 /hr
    0 hours
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  9. Michael Armao

    Michael Armao

    Emerging and Frontier Market Analyst

    United States

    Working with geopolitical experts, economists, linguists and data scientists, I prepare insightful analysis on market conditions within Africa, South America, southeast Asia, and China. The analysis addresses the lack of transparency within developing markets by tapping into the vast amounts of open source information and building both predictive and prescriptive models for use by our clients.

    $166.67 /hr
    0 hours
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