Top Upwork Freelancers

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  1. Anthony Cherro

    Programmer/Analyst with over 20 years of experience.

    United States - Last active: 10/23/2014

    My overarching goal as a programmer is to create products that provide true value to my customers. I try to follow the core agile development principles as much as possible because I believe the principles are sound and proven when properly applied. My experience in software development and deployment over the last 20 years has shown me that a truly useful application will prove itself quickly and provide value for years if managed and maintained properly. A large part of that management/maintenance is listening to customer feedback and improving software, techniques, and documentation whenever possible. As an analyst, I spend a great deal of time monitoring, discussing, and studying processes so that I am able to better suggest alternatives or better directed efforts at streamlining processes before starting the development cycle. This is often crucial to producing a valuable, effective solution.

    $50.00 /hr
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  2. Ventsislav Ivanov

    PHP Developer

    Bulgaria - Last active: 3 months ago - Tests: 4 - Portfolio: 1

    I've got en extensive experience in creating web applications on PHP. If you have a project you want to acomplish professionally, I can defenitely carry out the work for you. The other technologies that I use are part of the the standart "pack" for creating web applications: HTML, JavaScript, CSS, JSON, XML, AJAX.

    $14.00 /hr
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  3. Kresimir Sivoncik

    Software engineer

    Croatia - Last active: 06/25/2014 - Tests: 1

    Software engineer SmartRM, Inc. October 2011 – September 2013 (2 years)Zagreb Transition from proof-of-the-concept to usable product for document access protection (please, see www.smartrm.com for details). Concept uses MPEG-21 protocol and its public domain implementation libraries, MXM (on client side) and Chillout (on server side) as core. Tasks performed include - partial code refactoring of both client side and server side. - implementation of user interface on client side, - design / implementation of communication protocols for informations not covered by core MPEG-21. - implementation of user web access to the data stored on server (known as web-console, application separate from server) - port of client from MS-Windows to Mac OS X (and writing necessary patches for different libraries) Tools and languages: - client C/C++, Qt, and on Mac OS X systems part had to be using Cocoa, Axis2C - server java 1.6, SpringFramework, Hibernate 3, Mule ESB 2, Axis2/REST - webconsole RubyOnRails 3.2, REST Software engineer Sinapsi May 2011 – June 2011 (2 months)Zagreb Arhcitecture and implementation of data exchange protocol via XBRL defined structure. A simple state machine with simple grammar was enough to produce compact engine to transfer data from database into XML, this way entirely escaping JAXB which was initial idea of customer. Work was completed in two weeks. The rest of the engagement was support for run-in of the library. Language: Java 1.6 Software Engineer Sinapsi July 2007 – March 2009 (1 year 9 months) Event Management System for Novartis Spa. Milan, Italy : Oracle DB, BEA 8 web server, Struts 1.1, Spring Framework 2.5, Hibernate 3 - architecture & implementation of entire system (Jan. 2008 - March 2009) Shopping Cart backend for Feltrinelli Spa, Milan, Italy: MS SQL, Spring Framework 2.5, Hibernate 3, Velocity, Mule. Shopping cart module communicated with 5 external systems (run by different companies): procurement, sales, logistics, credit card company, web front end. This required to provide communication via various technologies (flat file fixed record, SOAP, RPC, proprietary protocols) - architecture & implementation of entire DB and business logic, partially of communication protocols (July 2007 - Dec. 2007) RA at Institute for Simulation and Training at University of Central Florida Orlando, FL, US Institute for Simulation & Traninig August 2006 – January 2007 (6 months) Port of existing crowd simulation application (single thread) to computer cluster, and locating existing implementation bottlenecks. Pure Java. (Sept.2006 - Jan.2007) Implementation of tool to assist conversion of raw video data into crowd motion tracking data (idea and implementation), JMF, August 2006 Software Engineer 3 Cplane January 2000 – December 2002 (3 years) Network traffic optimization software development. Responsible for implemetation of - Graphical User Interface Framework for interfacing set of applications like Traffic Conditioning, Traffic Engineering, Network Engineering, Bandwidth Management, Service Activation. Framework written in Java, graphical library Swing. Configuration / management of the framework done via extensible set of parameters stored in XML files. - Implementation of Traffic Conditioning, Bandwidth Management, Network Engineering, partially Traffic Engineering in layers above network device specifics (J2EE Beans). Software Engineer iOwn.com May 1999 – December 2000 (1 year 8 months) Development and maintenance ISAPI DLLs in C++ for an online mortgage broker. Responsible for all the applications on the real-estate portion of the website, including a property valuation tool, a property listing search, and various calculators (external web site). Architectural redesign, design & development of set of applications for data maintenace & exchange based on WEB paradigm (internal web site). Software Engineer Cromerica Technologies March 1998 – April 1999 (1 year 2 months) Implementation of ITU T.120-T.126 (Multipoint Data Conferencing and Real Time Communication Protocols) standard series (including implemetation of required supporting X.690 X.691 protocols). Work done in platform independent C++ format. Entire development (beta version of server) took only eight months, facilitated by use of custom made code generators and features of Rational Rose

    $11.11 /hr
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  4. Vitaliy Yaskov

    Vitaliy Yaskov Agency Contractor

    Ruby on Rails developer

    Ukraine - Last active: 10/21/2014

    I'm skilled Ruby on Rails developer with experience of enterprise applications development. I want to achieve the maximum ability to develop web applications.

    Associated with: Nova Soft

    $10.00 /hr
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  5. Nikhil Gupta

    Liferay, IT Consultant, CFD, CAD developer

    United States - Last active: 12/04/2011 - Tests: 4

    To attain excellence working on cutting edge technology, Working in US, available for part time. Available hours are flexible based on Project and expertise. Good blend of working as Application and software enginner in engineering plus health care domain. Worked on Desktop application in involving numerical analysis for fluid flow, CAD developemt. Worked on J2EE N-tier projects from last 3 years using Java, PHP , Liferay .

    $16.67 /hr
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  6. Ivan Pidluzhniy

    Programmer and 3D Modeler

    Ukraine - Last active: 2 days ago - Tests: 2

    I am a student and a beginner programmer. My goal is becoming a successful game developer, however I also want to be skilled in other branches of programming

    $11.11 /hr
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  7. Mike Statham

    Proffesional programmist x86-Asm,C,Perl

    Russia - Last active: 10 days ago - Tests: 1

    Results-oriented Linux Administrator and System Programmist with more than 7 years of experience. Creative professional focuses on innovation,development , implementation, and advancement of systems/networks, LAN/WAN, and servers infrastructures.

    $11.11 /hr
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