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Last updated: October 1, 2015
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Alvaro Barrientos

Alvaro Barrientos Agency Contractor

Expert in Machine Learning and Data Mining

Uruguay - Tests: 18

Electronics engineer specialized in soft computing, machine learning and intelligent data analysis. Always enthusiastic about math skills, and willing to discover knowledge in new scientific concepts. Research experience in sequential pattern mining applied to stock markets analysis and insider trading. Two years of professional experience as analyst programmer for a top-tier USA bank. One year of experience as an automation engineer in a galvanized-steel line.

Associated with: Accelf Services

$35.00 /hr
0 hours

Anton Nashatyrev

Anton Nashatyrev

Java professional with 15 years of experience in top rated companies

Russia - Tests: 2

Professional Java developer with 15 years of experience. Know the Java inside out: worked on the Java platform at Sun, Intel and Oracle. Computer science master degree at Saint-Petersburg State University.

100% Job Success
$50.00 /hr
0 hours

Marek C.

Quantitative analyst, R, matlab, Data scientist


I am looking for challenging problems that require mathematical skills, ingenuity, programming skills, and deep and original thinking. I worked for a few different companies and always on very interesting problems. I am looking for project in the areas of algorithms, machine learning, probability, stochastic methods, signal processing, data compression, predictive methods, mathematical methods in finance, high frequency trading strategies, genetic algorithms. risk analysis, adaptive learning algorithms, discovery of patterns, data analysis, evolutionary computation. Learning classifiers, wavelets and all preditictive methods ( svm, hidden Markov models, neural networks) applied in financial markets. I spent also a lot of time developing trading strategies in different markets, using machine learning algorithms, genetic programming. My favorite tools are matlab and R.

$28.89 /hr
55 hours

Stephanie Hintzen

Stephanie Hintzen

Bioinformatics Scientist

United States - Tests: 2 - Portfolio: 1

I am looking to keep learning and to expand my skills through some free lance work. I hope to try new things and to earn some extra money. Most of my skills are in biology, but I have considerable computer experience. In addition to the skills listed below, I have also dabbled (and can code my way out of a bag) in: C++, PHP, MSQL But as I don't code in them often, I didn't want to list them as something I am "skillful" in. Check out my professional profile and connect with me on LinkedIn.

$12.00 /hr
10 hours

Sravankumar Ayila

Sravankumar Ayila

Excel and VBA applications developer


Hi, Myself, Sravan, I have been working on Excel and VBA for the past 3 years and worked on various kinds of Dashboards, Data Processing tools and Data Manipulating tools. I have spent thousands of hours on Excel and VBA. I would like to work on various kinds of excel projects ranging from small to large size. I am confident of developing structured and uncomplicated solutions to the Excel and VBA problems. I am open to explore all varieties of projects/problems related to Excel and VBA. Thank you.

$20.00 /hr
0 hours

Nag Y

Data Sciences, Enterprise application Predictive Modeling Professional

India - Tests: 2

Nag currenty drives the Analytics team. He has executed & delivered a few flagship projects in the areas of business intelligence & data mining across some of the large organizations including Alcatel Lucent, Aricent Software Systems, Coginzant . Nag has the experience of handling data-intensive assignments involving millions of customer base. He has led a few first-time-in-the-industry projects that required R&D and application of algorithms tailored to the domain. Specialties:Nag ’s competencies include: - A smart professional with 8+ years of experience in Enterprise applications. Hands on experience in developing multi tier architecture applications using Java, SOAP,Hibernate,Spring,Design Patterns ,OOAD,API design. Three years of experience in Big Data platform using Apache Hadoop and its ecosystem. Expertise in ingestion, storage, querying, processing and analysis of Big data. Experienced in using Pig, Hive, Sqoop, Oozie, Flume, HBase. Good experience with the Hive Query optimization and Performance tuning.  Hands on experience in writing Pig Latin Scripts and custom implementations using UDF'S. Good experience with Sqoop for importing data from different RDBMS to HDFS and export data back to RDBMS systems for ad-hoc Reporting.  Experienced in batch job workflow scheduling and monitoring tools like Oozie. Extended Hive and Pig core functionality by writing custom UDFs. Experienced in analyzing data using HiveQL, Pig Latin, and custom Map Reduce programs in Java. Worked as technical team lead/off shore coordinator in leading multiple projects for timely deliverables. Comprehensive problem solving abilities, excellent verbal and written communication skills, willingness to learn, Team facilitator. Successfully plans and coordinates teams for multiple IT projects with managing time lines and budgets efficiently by analyzing, designing, and implementing cost-effective solutions Able to think "out of the box" and make critical decisions. Able to work effectively under pressure with changing priorities and deadlines. Provided direction for development, migration, and integration activities. Sees projects through from inception to deployment. Big Data analytics: storing and mining large & complex data - Customer scoring for various propensities: likelihood of churn, sale etc. - Product analytics: price elasticity of demand, market baskets - Web analytics: e-commerce & digital marketing optimization - Text mining: converting text into structured data, extracting semantics - Transforming academic research into industry applications - Building an analytics layer over existing ERP & CRM applications. Apache Spark jobs in Scala and MapReduce jobs in Java, Sqoop, Flume, Zookeeper, HBase and Hive . Hands on experience in installing, configuring and using ecosystem components like Hadoop MapReduce, HDFS, Hbase , Zookeeper, Oozie, Hive, Sqoop, Flume. Extensive experience in SQL and NoSQL development. Experience in data analytics using Apache Spark in Scala. Excellent Knowledge implementing Hadoop with the AWS EC2 system using a few instances in gathering and analyzing data log files. Working on data using Sqoop from HDFS to Relational Database Systems and vice-versa. Working on Hive/Hbase vs RDBMS, imported data to Hive, partitions, indexes, views, queries and reports for BI data analysis. Developing data pipeline using Flume, Sqoop, Pig and Java map reduce to ingest customer behavioral data and benefits histories into HDFS for analysis. Worked on RDDs and aggregate functions applied on them to get the required results. Working as a Implementation Analyst for configuring the benefits and events based on the BRD documents and processing them Web Development: Involved in various phases of Software Development Life Cycle (SDLC) as requirement gathering, data modeling, analysis, architecture design and development of project. Designed UI using JSP and HTML and validated with JavaScript for providing the user interface and communication between client and server. Worked on XML schema and SOAP message. Developed business logic activities by developing business service classes. Involved in web development using RoR technologies. Worked on different gems for authentication, building role base systems. Worked on Integration with other api and consuming their apis e.g. Twitter , LinkedIn, Facebook and Instagram Worked on integrating different payment system with the web applications e.g. PayPal, Authorize.ent, Heartland , Braintree etc. Experienced in deploying the Rails web app to VPS server e.g. Linode, Digital Ocean, Amazon EC2 , Rackspace etc with the apache passenger and ngnix server. Worked on writing the deployment scripts and cron schedulers. Worked on Redis and elastic search

$30.00 /hr
0 hours

Vivek Y.

Vivek Y.

Certified - Web Programming, Data Mining , Cloud and System Engineer.

India - Tests: 2 - Portfolio: 2

I'm a professional freelance web and system engineer from India working Web , Data Mining , Analytics, Cloud, System and Data Scrapping Domains. Over the last 5 years I've worked for many project for several companies that provide high range of web and system level programming. My role was to keep all the web and system work in my hands, also communicate with the other developers to achieve the perfect result for a client. Always looking for a full-time position of a Web and System Programmer. I also did data analysis for a number of researches and projects over 2 years and helped client to better visualize the results. I'm an expert in what i'm doing: responsible, reliable and communicative person. Technologies: Operating System and Hypervisor: GNU/Linux(Ubuntu/Centos), VShpere. Web and XML Technology: HTML, CSS, Javascript, XPath, XQuery. Programming Environment: VIM, Eclipse, Visual Studio, NetBeans. Analytics Technology: Hadoop, R, Weka, Cloudera, Informatica. Programming Language: C, C++, C#, Python, Java. Database and Other: Oracle, MySql, AWS, Latex, GDB, Valgrind.

$16.67 /hr
241 hours

Javeed Khan

Javeed Khan


Belgium - Tests: 3

Currently pursuing 1st year Masters in Statistics – Biostatistics in Universteit Hasselt. 4 years of experience on various projects both at Academic and Professional level. Certified Six Sigma Green Belt in Quality. Certified Advanced SAS Programmer. Excellent Problem Solving skills, Interpersonal skills & Good Attention to detail. Flexible and versatile to adapt to any new environment and work on any project. Determined to learn new technologies, take-up challenging tasks. Capable of working independently as well as part of the team with good understanding of Team dynamics, willingness to learn and accept challenges. Excellent Command over entire life cycle Health Insurance Industry. Knowledge of handling claims in different languages (Deutsch, Arabic, and Portuguese) apart from Claims in English.

$25.00 /hr
0 hours