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Last updated: October 1, 2015

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Igor P.

Igor P. Agency Contractor

Expert Software Developer/Data Scientist

Russia - Tests: 7 - Portfolio: 12

Expert C++/Python/Node.JS Developer and Data Scientist with 12+ years of experience and Master's Degree in Computer Science. Over 12 years of Igor P. 's work experience he has been acting in a wide range of roles, such as Senior Software Engineer, Statistician and Team Lead. Igor's core interest and competency is technical problem-solving. He has developed (working in a team or as a Team Lead) a number of software products, primarily network applications, system services, middleware services, data processing systems, hardware management systems, real-time systems, network protocol implementations. He is looking for opportunities to work on technically complex software projects, requiring deep understanding of software technologies. Igor has experience in C++, Python, Node.JS, JavaScript, Java, C#, Bigdata, Machine Learning, Middleware, System Software, Web Applications, High-performance Network Servers, Distributed Data Processing Systems, and Algorithms.

Groups: Upwork Verified Developers

Associated with: Mediterra

97% Job Success
$36.00 /hr
5,647 hours

Pranav Verma

Pranav Verma

Big Data: Spark, Data Science: Python, BI: MicroStrategy

India - Tests: 1 - Portfolio: 14

Pranav is a data person helping enterprise, small business, and startups solving their data problems at scale. Graduate from Indian Institute of Technology, IIT Guwhati, carries 12 years of significant experience working on data engineering and data science. Pranav had been associated with esteemed businesses including Invitation Homes, Kaiser Permanente, Zurich Financial Services, Hughes Depot Supply, Boeing, Nielsen, Adap TV, Ecolab, CNA Financial, to name very few in list. OFFERING ------------- 1. Data Ingestion - Ingesting data from variety of sources to a big data ecosystem. - Data sources can be operational systems (CRM, ERP, SCM, CMS), Databases (Relational, NO SQL), Streaming (Machine Logs, Social Media, Event Processing), Files (Word, Excel, CSV, PDF, Text) - Big Data ecosystem can be Apache Hadoop or Apache Spark 2. Data Scale - Moving data to a big data ecosystem - Parallel processing through Apache Spark - Storing data to NO SQL databases for pre-processing 3. Data Wrangling - Data Lake development including data pipelines - Pre-processing tasks including data parsing, data profiling, data shaping, data inferencing, data enrichment, data harmonization, data cleansing, data transformation, data combining 4. Data Context - Natural Language Processing of un-structured and multi-structured data Entity selection, Featurization, Part-of-Speech, Lemmatization, Stemming, TF- IDF, Scoring - Entity Resolution, Linked Data, Semantic Web, Third Party enrichment, Ontology, knowledge graph, Word Disambiguation 5. Data Exploration - Exploratory data analysis to summarize dataset characteristics - Mining the hidden patterns in data - Statistical analysis concluding right analytical model 6. Data Analytics - Build a machine learning model meeting requirements - Validating and Testing the data model prepared 7. Data Communication - Analyzing results via Visualization, D3.JS or Tableau - Providing actionable insights through automation SKILLS --------- 1. Framework: Apache Hadoop (MapReduce, YARN, HDFS) 2. Distributed Programming: Apache Spark - Parallel processing of large scale data, batch or streaming - In-memory computation of big data in seconds or less - Machine learning implementation - Graph data analysis - Realtime streaming - Processing in Python, Scala, and R 3. Key Map Data Mode: Apache HBase, Apache Cassandra 4. Key Value Data: Reddis 5. Graph Database: Apache Giraph, Neo4J 6. Document Data Model: MongoDB 7. Data Ingestion: Apache Flume, Apache Sqoop 8. SQL-like Processing: Apache Hive, Apache Impala 9. Message Oriented Middleware: Apache Kafka, RabbitMQ 10. Service Programming: Apache Avro, Apache Zookeer 11. Scheduling: Apache Oozie 12. Applications: Apache Nutch, Apache Tika 13. Search Engine Framework: Apache Solr, Apache Lucene 14. Data Visualization: D3.JS, Tableau, Qlikview, MicroStrategy 15. Distribution: Cloudera, HortonWorks, MapR, Pivotal SPECIALITY --------------- 1. Marketing Data Handling marketing automation, CRM data, POS data, click-through data, social media, second & third party data 2. Marketing Analytics - Customer Loyalty - Customer Churn - Customer Segmentation - Upsell/ Cross-sell - Discount Targeting - Customer Behavior 3. Marketing Application Data Management Platform, DMP for marketers, publishers, & agencies Communication ============= I possess excellent English skills and and use Skype/ TeamViewer/ GotoMeeting/ to communicate with my clients on Upwork. Availability ========= Available from 9:30 AM (IST) to 1:00 AM (IST) for my clients from different time zones. Contact ====== Please send your queries to or Skype at vpranav121

58% Job Success
$55.00 /hr
3,020 hours

Ahsan shafiq C.

Ahsan shafiq C.

Top Game Developer / Data Scientist & R Developer

Pakistan - Tests: 2 - Portfolio: 5

I have 5+ years of experience in Software Development and Design in various leading technologies. I have worked for International Customers and helped them growing their business and expanding the profitability. Over the last 5 years, I have developed a wide range Mobile applications, which include iPhone/iPad/Android/J2ME. I have developed both games and eCommerce applications for iPad/iPhone. I have Masters Computer Science with focus on Data Mining and Machine Learning. I have been doing statistical data analysis in R for 2+ years now and have experience working with a variety of single/multiple regression, multi class classification and clustering techniques. I have been involved in development of: - Ruby on Rails - iPhone/Android Native Applications for the Enterprise - iPhone/Android Games Specialties: iPhone SDK / Android / J2ME / Symbian / BREW / BlackBerry Cocos2d / Cocos2d-x / Unity3D / OpenGL ES / Quartz 2D Box2d / Chipmunk Ruby on Rails (ROR) C / C++ / Objective-C / Cocoa Framework / C#

Groups: Application Developers Alliance

99% Job Success
$30.00 /hr
3,555 hours

Amal Dutta

Amal Dutta Agency Contractor

System Analysis & Design, Project Management, Technical Writing etc.

India - Tests: 14 - Portfolio: 5

Thanks for visiting my profile. My full name is Amalabha Dutta. Currently I am working for PreScouter, Inc. (a Chicago based Technology Scouting Company) as Marketing Data Analyst (CRM). Prior to that I worked for a New York based company for customization and implementation of a Zoho CRM/Recruit based solution integrated with the website of the company. During Nov-2011 to Jun-2012 I have customized and prepared contents for a Zoho CRM Project for an Australian company. I have examined SugarCRM, SalesForce, VTiger and Microsoft Dynamics for comparison of features and limitations to prepare myself to work on these platforms. During 2008 to 2011, I have worked for two projects for Customization and Implementation of ERP/CRM on MS-SQL Server /.Net Platform over and above general administrative and strategic planning functions for small business houses. My objective is to best utilize my qualification, experience, dedication and extraordinary learning capabilities to turn every assignment I undertake into success. My employers have utilized my abilities in Technical Writing for Documentation and preparation of Training Materials etc. Throughout my career, I have prepared Business Proposals, Project Proposals, RFPs, Tender Documents, Contract Documentation on many occasions apart from Business Correspondence. I love to learn / improve / adapt continuously. Recently, I have enrolled with the Partner University of vmware to learn 'virtualization' from the world leader in the field and have already passed three module tests. I have also passed many oDesk and Brainbench tests with outstanding marks. Please visit the relevant sections for details. My employment history ============== I am working for a New York based company for customization and implementation of a Zoho CRM/Recruit based web-integrated solution. Prior to that, I have completed an assignment from an Australian Pharmaceutical Company for customization and implementation of Zoho CRM. While working for this project I have also used other cloud based solutions in Zoho, Google etc. apart from using Teamviewer, Skype and GoogleTalk on a regular basis. During 2008 to 2011, I have led teams of professionals for customization / implementation of ERP Solutions in two particular fields – 1) Healthcare; and 2) Logistics/ Transportation. Starting from a Purchase Officer’s job in a Public Sector Company in India, I have worked in many areas and levels up to the level of General Manager. I have domain knowledge in a number of fields such as Pharmaceuticals, Engineering Consultancy, Logistics/Transportation, Banking, Healthcare and Real Estate. Apart from General Administration, HR, Business Development etc. my focus has always remained around modernization – particularly, office automation and allied projects. I have hardcore experience in managing the entire spectrum of ERP Sales/ Customization/ Implementation encompassing the following functions: Demonstration of ERP Solutions to prospects; Requirement/ functional/ gap analyses; Customer interaction for finalizing contractual terms; Coordinating with presales team and signing off contracts; Overseeing preparation of Blue Prints and Business Mapping Reports; Recruiting technical personnel; Taking part in preparation of technical/training manuals; Conducting training programs for the senior level participants. My core competency lies in communication at any level for complete end to end management of ERP/Software projects that includes myriad of managerial activities, Technical Documentation, Presentation, Recruitment, Training etc. I have done innumerable writing projects; apart from Software Documentation and Training Manuals I have mostly done Technical Writing and SEO jobs through various entities in the web. Please visit my personal blogs to know more: 1) 2)

Associated with: Data Consultancy & Training Services

100% Job Success
$20.00 /hr
7,332 hours

Andrew Norcott

Andrew Norcott Agency Contractor

Data Scientist/Tableau Developer Lean Six Sigma Black Belt.

United Kingdom - Tests: 2

Lean Six Sigma Blackbelt (BSi Certified) Data Scientist, Data mining with APIs, and Tabelau Dashboard Developer. Create excel dashboards and analysis tools ranging from very simple to highly complex. Provide solutions to business issues you have to help you active business goals. More than just programming but also providing solution after working in some large corporations, I understand what businesses need and want. Highly skilled in most statistical tools. Advanced Microsoft Office user. VBA/Excel/Powerpoint/Access/SQL/Word Minitab/Visio/ Can create excel dashboards and tools to high specification and deliver basically anything the customer needs. Also will help with consulting to provide a solution that maybe better suited.

Associated with: Innovative Solutions

83% Job Success
$40.00 /hr
2,957 hours

Volodymyr Kostanda

Volodymyr Kostanda Agency Contractor


Ukraine - Tests: 42 - Portfolio: 41

Owner and CEO at AdoriaSoft LLC. AdoriaSoft offers full cycle software development services and implements all stages of projects for our customers: - Research and estimation - Requirements definition - Architecting - Development - Graphical design and User experience design - QA - Support and updates Platforms that we develop for: - iOS (iPhones and iPads of different versions) - Android phones and tablets - MacOS - Web - Windows desktop - Windows Server - Windows CE - Windows Mobile PPC and SP 5.0, 6.0, 6.5, 7 editions We - have different real devices for testing (Android phones and tablets, iPhones, iPads of different generations, Macbooks, etc), no emulators. - work with both native and crossplatform frameworks - use an established design/development/testing lifecycle, follow scrum - have our own development servers with tasks management system (JIRA), source control (Git), continuous integration and build server (Bamboo), etc. - can easily work with time zones like PST, EST, etc. - offer high quality and cost effective solutions for our customers Technologies/Languages/Libraries/Frameworks: - ObjectiveC, iOS SDK, Mac OS SDK, XCode - Java, Android SDK - C++, STL, Boost, ATL, WTL, COM, MFC - Windows API, DirectShow, DirectSound, Sockets, Completion Ports, OLEDB, TAPI, GDI - C#, Managed C++, ASP.NET, LINQ, ADO.NET Entity Framework, WPF, Compact Framework, Mono.NET, Monotouch, Xamarin - Appcelerator Platform, Titanium, PhoneGap - MS SQL Server, T-SQL, Oracle, MySQL, NoSQL, MongoDB - Cloud platfoms: Amazon Web Services ( AWS ), Microsoft Azure - Web technologies: REST and SOAP web services, JavaScript rich client libraries, HTML5, CSS3 Our competences: - business automation software - System utilities for MacOS, Windows and mobiles platforms - Information security, cryptography, steganography - client-server applications - Wireless 3G/4G, Bluetooth, WiFi applications - VoIP, voice codecs, data signal processing - Complex Web applications and portals (ASP.NET, PHP, REST web services, JavaScript rich clients)

Groups: Application Developers Alliance

Associated with: Adoriasoft

100% Job Success
$29.00 /hr
15,549 hours

Rahul Singh

Rahul Singh Agency Contractor

Search/NLP/Semantic/Predictive Models/Machine Learning

India - Tests: 3 - Portfolio: 3

I have good experience in the field of big data, machine learning, search, natural language processing, semantic web and knowledge modeling. I have worked on Named Entity Recognition, RDF, SPARQL, JSON, XML, Hadoop, Mongodb, Couchdb, ElasticSearch, Solr, Lucene, Mahout, R, Gate, Apache-Jena, Dbpedia, Ektorp, Weka, Jackson. I have a good experience in programming languages such as Java, R, SAS, Python. I have extensive experience of applying machine learning algorithms to solve complex business problems. I am a post graduate in Electrical Engineering, IIT Kharagpur (2004-2009).

Associated with: OSBII Agency

84% Job Success
$55.56 /hr
3,615 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

Kapil Juneja

Kapil Juneja

Excel Expert, Access Expert, VBA, 6 Sigma-Lean Green Belt

India - Tests: 8 - Portfolio: 2

I do have 7+ years of experience of working on Excel/Access based projects and have good command over VBA, functions and applications.. I created many dynamic dashboards and structured databases with User Interface including Web Scrapping projects. I can portray many examples also. My firm belief is to provide excellent developing services to ease my customer requirements and provide an user friendly, professional application. Because of extensive experience in Six Sigma and Data Modeling, I am good in suggesting and implementing the best solutions for my clients to improve their projects Looking forward to hear from you Have a great year ahead. :-)

88% Job Success
$15.00 /hr
1,963 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
$25.00 /hr
1,196 hours