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Last updated: October 1, 2015
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andi rey

andi rey

Happy Data Scientist

Ukraine - Tests: 6 - Portfolio: 4

I'm PhD Scientist with a mix of Programming and Academic skills. I've been doing a Researches in a way of development Data Mining & Machine Learning Applications over the last 10+ years. The main domains are Marketing, Economics and Business Management. My favourite tool for Data Science Projects is Python with scikit-learn, pandas and numpy packages. And, R is also comfortable for me. I have an experience of using Java, C# and JavaScipts. For example, for the last project I used C# with MapWindow GIS Library. And just for the record, when Delphi was a cutting-edge technology I had developed desktop apps with Paradox database. I have strong experience in SQL and research experience in NoSQL & Big Data. And, all of these make me Happy ! p.s. from Gregory Piatetsky, The Editor of "I love Andi Rey collection of Data Scientists Thoughts that Inspire, and here he also shows his excellent visual and humorous side by illustrating great quotes from Chris Wiggins" --

$12.34 /hr
0 hours

Roman Petrovschi

Roman Petrovschi Agency Contractor

AI Devel


Our software engineers are developing code since 2000 having experience in several IT fields: * Professional Web Scrapping * Adaptive and Intelligent Web Crawling/Web Data Mining/Web Robots * Natural Language Processing * Artificial Intelligence and Machine Learning * Developing of Trading Platforms and trading software, backtesting engines, financial communication protocols * Professional AntiVirus developing & Malware research * PHP WebSites development/SQL-based Database management Systems/Joomla Our mainly used programming languages are: * Python(2x, 3x) * C/C++ (Qt) * Perl(5x) * PHP 4/5 * Assembly Languages * Delphi/Pascal * JavaScript * Groovy/Java * SQL (MySQL, PostgreSQL, MSSQL, Oracle, SQLLite) Our experience include: * Natural Language Parsing (English) and semantic interpretation(Stanford Parser/NLTK, WordNet, semantic disambiguiation). * Machine Learning and Artificial Intelligence (Classifiers such as Neural Nets, Support Vector Machines, Regressions, Decision Trees, Random Forests) * Web Scrapping/Crawling, Intelligent, adaptive, evolutive robots. * Developing of Trading Platforms, trading software, backtesting engines, financial communication protocols such as FIX, ITCH, ITTO * Malware, spyware, riskware reverse engineering and classification, w Writing of malware descriptions and detailed disinfection instructions, Knowledge of anti-malware policies and antivirus development.

Associated with: AIDevel

$48.00 /hr
0 hours

Justin C

Justin C

Big data engineer and webapp prototyper

United States - Tests: 2 - Portfolio: 1

I am a software engineer who focuses on big data, machine learning, and analytics. I have a masters degree in computer engineering and neural engineering. My thesis focused on using machine learning techniques to classify brain signals in real time. Throughout my academic career I completed my internships at one of the "big four" and I just left a software engineering position at another one of the "big four". My other work has been in the startup world where I became familiar with agile development and getting things done! I am proficient in Python, Ruby, Rails, Hadoop, C++, Java, MATLAB, PHP, MySQL, PostgreSQL, MongoDB, Redis, and more. I have built many projects from the ground up and am familiar with cloud platforms such as Heroku and AWS. By this I mean, I can get your app up and running in no time. Here is a running list of some of my current work:

88% Job Success
$111.11 /hr
0 hours

Md Akhtar Hossain

Md Akhtar Hossain

Statistical Analyst, R Programmer and Academic Writer

Bangladesh - Tests: 5 - Portfolio: 11

With my B.Sc. and M.S. in Statistics and with my 7 years’ experience in practical field of research and teaching, I’ve numerous experience of analyzing data and writing publication quality papers/thesis in various fields including technology, business, demography, psychology, medical science, social science, public health, economics etc. I’ve published several research articles in different journals and written several conference papers. Moreover, I've experience of supervising a number of undergraduate projects and graduate theses in different applied fields. These thesis works covered univariate to multivariate statistical analyses with statistical graphics. I have very strong theoretical and applied statistical knowledge with efficiency in statistical computing with different software such as SPSS, SAS, R, STATA, FORTRAN, MINITAB, EVIEWS, EXCEL etc. My core competency lies in conducting statistical analysis using different statistical softwares and writing academic thesis/articles for publication. I also have a very strong skill of independent programming in statistical programming languages. I am seeking opportunities to solve all your issues that requires statistics knowledge. I also have interest in teaching in the field of statistics.

100% Job Success
$30.00 /hr
2,190 hours

Vadim K.

Vadim K.

Data Scientist. ML, R, SAS, Python, ETL, AWS Developer.

Russia - Tests: 9

I have 3+ years experience working with data. ETL Developer: SQL, SAS DI, Talend, Oracle DB, GreenPlum DB, PostgrSql, Hadoop, Hive, Pig. Data Scientist/Data Analyst: R, SAS, Python, Machine Learning, D3.js, Spark. I have 4+ years previous experience on developing web applications using PHP, JavaScript, AJAX. Databases: MySQL, Postgresql. Frameworks: JQuery, Code Igniter. CMS: MODx, Wordpress.

97% Job Success
$22.00 /hr
1,183 hours

Steven De Blieck

Steven De Blieck

Lean data strategist

Belgium - Tests: 1 - Portfolio: 2

30 seconds summary: ---------------------- (If you have a minute, check out for a more visual overview.) Setting up a (digital) strategy takes a lot of time and money. In these changing times, waiting 2 months for results is already too late. Local (often identical) consultants result in high costs. Their results are often not grounded in evidence, and implementation is left entirely to you. With me, you know my value from week 1 instead of week 10. I use complementary ideas and scientific evidence to come to a result, while overhead costs are kept to a minimum. I work mostly remotely, via weekly renewable sprints. I pose a concrete question, divergently look for solutions and test them. This ranges from strategy, to planning, to implementation. Every project, I'm also coached by at least one very successful entrepreneur. Why I do this? ------------------- I am a generalist that wants to understand everything. One of my hobbies is sucking up as much information as I can about a topic. Few feelings are more wonderful than connecting things from different fields, that seemed independent at first. And if these new ideas can be meaningful to individuals/companies, it fills me with joy. That, in short, is why I love providing my consulting services. My background ------------------- I have a formal education in both Computer Science and Physical Therapy at Ghent University. Additionally, I completed online university courses on topics like law, finance, physics, etc. I have done technical work in large companies (e.g. Barco and PicanolGroup). I founded 2 companies, one in cause-related marketing (where I lead to 2 team members), and one in digital strategy consulting. I was awarded the statute student-entrepreneur for my increasing entrepreneurial successes during my student years, when I additionally also produced a film. I feel very privileged to have had these diverse experiences. In my adventures I have come across fascinating people with captivating ideas. It is via combining all these things, with technology as a catalyst, that I tackle business problems.

$118.00 /hr
0 hours

Tony Ojeda

Tony Ojeda Agency Contractor

Efficiency expert experienced in analysis, optimization, & innovation.

United States - Tests: 1

To use my knowledge and experience in data science, finance, business strategy, management, and entrepreneurship to to help businesses solve problems. Over the last 8 years, I've worked in a variety of roles for companies and also started my own software company. I have experience doing everything from creating reports and conducting statistical analysis to managing people, from analyzing business scenarios to making strategic decisions. I possess a variety of skills (see below), but what really sets me apart is my creative problem solving. I have a unique ability to process information very quickly, understand a situation, and formulate a framework for how to solve problems before I even physically begin working on a solution. This, combined with my technical knowledge and ability to execute, allows me to work extremely efficiently and get amounts of work done in periods of time that others cannot. Skills: Data Mining & Analysis, Data Science, Predictive Analytics, Machine Learning, Financial Modeling, Process Automation & Optimization, Business Planning, Strategy Formulation & Execution, Project Management, and Entrepreneurship. I'm also a native English speaker and writer and have excellent communication skills in both. Technical: Advanced proficiency in Microsoft Office (Excel, Access, Word, and PowerPoint) and Visual Basic for Applications (VBA). Proficiency in HTML, AS400, R statistical programming, Tableau business intelligence software, and SlideRocket presentation software.

Associated with: Stratalytix Agency

$33.33 /hr
0 hours

George-Bogdan Ivanov

George-Bogdan Ivanov Agency Contractor

NLP specialist, AI enthusiast

Romania - Tests: 4 - Portfolio: 2

I am researcher and developer specializing in Natural Language Processing, Machine Learning and Artificial Intelligence in general. I am part of an experienced team of young engineers eager to face new challenges and create intelligent software. Check out our agency here: I've worked on a wide range of software development from academic research through end-user and real-world industry products. Skills: * Expert level of text processing, data modeling, text analytics, Lexical Semantics, Information Retrieval/Extraction * Understanding content - extraction of patterns and facts by applying Natural Language Processing techniques; * Uniform document retrieval - quick, easy and uniform access to all data needed by your business case (internet and intranet crawling; screen-scrapping); * Automated & distributed data collection frameworks * Sentiment Analysis, Opinion Mining * Content spinning and natural language generation * Identifying & capturing trending topics using n-gram analysis * Discourse analysis and pragmatics * Experience in using open source frameworks like NLTK, WordNet, VerbNet, Stanford CoreNLP, SimpleNLG, CLiPS pattern, Scikit-learn, numpy, scipy * Professional Web data mining * Professional Python, experience with Java, C, Javascript I also have a passion for working in startups, in innovative environments and in research. I have a masters degree in Artificial Intelligence and a bachelors degree in computer science. Don't hesitate to contact me, check out my blog or view my CV: Blog: Stackoverflow:

Associated with: AIDevel

$44.44 /hr
52 hours

Evgeny Necheporenko

Expert BigData, Machine Learning, DWH with MicroStrategy, Microsoft BI

Russia - Portfolio: 2

Number of successful BI and Big Data projects with Microsoft Business Intelligence technologies, MicroStrategy 9, Hadoop, Apache Spark for Retail and Financial companies. Several projects have written Success stories. Necessary technical skills for programming, design and development solutions with Big Data, Machine Learning, MS SSAS OLAP Databases and cubes, MS SSRS reports, MS SQL Server Databases, DWH, MDX queries. MicroStrategy 9 Enterprise BI design and Datawarehousing, dashboards and visualization. Python, SQL, MDX programming.

$50.00 /hr
0 hours