Top Upwork Freelancers

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  1. Olivier Tisserand

    Olivier Tisserand

    Senior Software Architect

    Spain - Last active: 2 days ago - Tests: 1 - Portfolio: 1

    French Senior Software Engineer with a career structured in several axis : - Multi-system data processing architectures, Virtualization, Data centers design & Integration - Senior Software architect : Java, C#, C++, Ruby, RoR, Python, Oracle, SQL Server, MySQL. - Data mining solutions linked with SQL databases.. - Data acquisition systems and monitoring, Building Intelligence, Protocol handlers. - Statistics and Numerical analysis (R language, Eviews, Matlab, Scilab) - Artificial Intelligence and specific languages, with industrial applications. - PPC Statistics & API (Adwords, Adcenter) - Networking with a Wireless Internet Provider (Mikrotik specialist). - Business Intelligence With 25 years experience in France and Spain as Consultant Engineer in various business environment, able to handle and develop projects involving multiple environments and technologies.

    $33.33 /hr
    3,025 hours
    5.00
  2. Serge Mosin

    Serge Mosin

    Python | Django developer

    Russia - Last active: 1 day ago - Tests: 6

    I am an educated computer science/math specialist (Masters diploma with honors in this field). I have experience in developing sophisticated server based/desktop applications. I have verified skills in Python based development, including Django and other frameworks. I always keep pushing myself towards better code quality and most effective development practices to deliver best possible work suiting deadlines. I really enjoy what I do and I want both me to be proud of my job and my client be happy using it.

    Groups: Application Developers Alliance

    $35.56 /hr
    1,695 hours
    5.00
  3. Manuel Adelin Manolache

    Manuel Adelin Manolache

    Consulting Analyst - Application Architect - Project Manager PHP,JS

    Romania - Last active: 6 days ago - Tests: 5 - Portfolio: 5

    I graduated in Computer Science at Polytechnic University of Bucharest, Romania. I also have a masters degree in Advanced Computer Architectures. In 2012 I started my PhD. I have been working as a freelancer for 7 years now but I also had some regular jobs in the past as a software developer at some well known companies but decided to quit so I can only focus on freelance projects. I have experience with most programming languages, from C, C#, Java, C++ to Python, PHP, SQL, Javascript, Haskel, Clips. In the recent years I've mostly programmed PHP, Javascript and custom web applications. Frameworks I've worked with: Zend Framework, CodeIgniter, Django, Drupal, Wordpress, jQuery, Bootstrap, and any other PHP popular framework. I have two partners I work with on all projects, Mihail - developer and Petru - artist. I also have a lot of finished projects, websites I can show on request. Work Policy: * I try to deliver the best quality possible, but this is often a trade-off between time, budget, and the specific project situation. (For example, not all clients would want the time/money investment in creating a full unit test suite). I usually suggest a LAMP stack using either PHP or Python. * I'll be honest. For example, I like giving suggestions on how to save time/money even if that means less billed hours for me. I only work on hourly projects. Thanks!

    Groups: Bluehost Developers and Designers

    $69.00 /hr
    4,888 hours
    5.00
  4. Sharif Ul Islam

    Sharif Ul Islam

    Experienced J2EE Developer

    Bangladesh - Last active: 5 days ago - Tests: 1 - Portfolio: 7

    Total year of experience: Over 7 Years (7+) J2EE • Experienced Ofbiz, Opentaps developer. • Integrate Endicia, AMWS, Magento, EBay, ChannelAdvisor, Buy.com, Customize and integrate new features for CRM/SFA, Financials, Purchasing, Warehouse, Catalog with Opentaps. • Strong exposure to MVC Architecture using framework like Opentaps, Apache OFBiz • In-depth knowledge of Web Environment, B2B, B2C and Client/Server Architecture as well as distributed systems using JAVA and J2EE technologies • Huge experience working with Opentaps 1.3 - Opentaps 1.5 frameworks, which also includes GWT and Hibernate technologies. • Design and developed in J2EE, JSP, JSTL, Free Marker, Ant, Maven, TDD application, Hibernate, JDBC, XML, TOMCAT, Java API, JavaBeans, Servlets, J2SE, RMI etc. • Working on J2ME [MIDP, CLDC], BlazeDS environment in flex, PayPal SOAP Application Programming Interface (API) and service with JAVA and PHP. Online Payment to HSBC bank via their API, Xpath. • Working in Spring Framework, DWR for Ajax, Acegi Security, Site Mesh, log4j & Display Tag. • Application development using SOAP, JBoss, GlassFish, Tomcat, EJB, Rich Internet Application (RIA), JPA, Hibernate Search, Lucene (Indexing). Working on Maven, Canoo Web Test, Junit Test • J2ee Enterprise application design and development using JSF, EJB3, JPA and Hibernate. • Web services design, development and deployment in JBOSS and GlassFish application server, SOAP, JAX-WS, JAXB, JAXP, WSDL, XSD. • Strong knowledge in SDLC, Software requirements specification as well as J2EE Design Pattern. • Proficient in different IDE like IntelliJ IDEA, Eclipse3.4-3.5, Flex Builder 3, NetBeans 6.5. • Anroid and Black Berry application development [J2ME]. • Opentaps [Open source ERP and CRM] customization, add new module and customize existing feature, operate migration from MS CRM to opentaps and also work with opentaps and Magento, Amazon[FTP and Web service], Ixtens integration. • Integrate and Customize OpenBravo and Magento using Web Services. • Experience on Liferay Platform. Mobile Platform • Have good experience to work with Titanium Appcelerator platform to develop Android and IPhone applications as well as develop Android applications onto Java environment. Familiar with MacOS during work with IPhone applications. • I have 2 published app into Android market place and IPhone app store. App name: OpenVideo™, Application id; com.glowpoint.openvideomobile • Experience to integrate push notification service for Android and IPhone applications by using APNS and Urban Airship. Rich Internet Application (RIA): • Adobe Flex, Adobe AIR, Action Script 3, Blaze DS [Java remoting and web messaging technology] Environment in Flex, PHP-Flex. • Adobe Flex design and action script programming with java web services. • Design and development GWT-Ext RPC service development. Hibernate, Spring framework and JDBC DAO service design and development. • Design and develop application with ICEFaces 1.8, ICEPdf, JSF, Hibernate, Spring, ACEGI Security, EJB3 etc. • Good Experience with JQuery, JQGrid and JSON. • Have experienced to configure and develop applications using Oracle ADF Faces 11g, Oracle 11g, Jdeveloper 11g, EJB 3.0, Eclipse Link, JPA, JSF, Web Logic Server 11gR1. Server Configuration: • Configure and deploy the J2EE Application into Tomcat Application Server on Linux Platform. • Configure Subversion [Version Control] into Apache 2.0 Server on Linux Platform. • Open source application or tools configuration in Sun Solaris 10, Linux. • Configure & integrate PHP, Apache, Mysql, SVN Server in Sun Solaris 10 platform & CentOS 5. • JBOSS, Glassfish application Server configurations in Solaris and Linux. Database: • RDBMS experience in Oracle 9i, 10g, 11g, MySQL & MS SQL Server 2005. • Experience with HSQL. • Strong knowledge of data structure & analysis, SQL, database design process, finding and organizing the required information, dividing the information into tables, normalization rules etc. Analytical Skills: • Strong knowledge in SDLC, Software requirements specification as well as J2EE Design Pattern. • Experience in Technical documentation, Technical Design, Technical requirements, Technical Installation guide etc. • Experience to writing project proposal, analyze BRS, SRS, prepare financial proposal etc. • Able to work under tied schedule and meet dead line. Version Control: Experience with WinCVs, CVs, JIRA, FishEye, Scarab, Crucible, Tortoise SVN and CVs., Subversion, Trac, Hudson, ReadMine.

    $30.00 /hr
    1,808 hours
    5.00
  5. Gofur H.

    Gofur H.

    pro*C/C++, plsql, CSS, PHP, flex, AS3, Oracle, Ajax, OOP, C#, .NET

    Czech Republic - Last active: 5 days ago - Tests: 12 - Portfolio: 5

    Over the last 10 years, I have developed a wide range of websites using HMTL,DHTML,CSS, PHP, flex, actionscript including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have solid skills in the following areas: MySQL, PostgreSQL, Oracle, Plsql, Interbase Pascal/Delphi, JDK 4,5 and 6JEE 5, c/c++, Pro*c, Web Services SQL, Ajax, OOP, and software design and testing.

    $38.89 /hr
    1,416 hours
    4.99
  6. Ilya Obshadko

    Ilya Obshadko

    Software development professional

    Israel - Last active: 1 day ago - Tests: 5 - Portfolio: 4

    Seasoned software developer, worked as software engineer, software development team leader, system architect, business analyst and project manager. Accurate and well-organized, always looking for the elegant and efficient solutions. Experienced in: - web development (mostly Java and Perl server-side technologies) - mobile software development for Apple iOS Technology background: - programming languages: Perl, Java, Objective C, C/C++, PHP, Clojure, Python, JavaScript - client-side: HTML5, CSS, jQuery, Bootstrap and other JS/CSS frameworks - system administration: Linux, FreeBSD, virtualization (KVM/QEMU), TCP/IP based networks - databases: PostgreSQL, MySQL, Oracle, MongoDB and others - Java development: J2EE, Apache Tapestry, Hibernate, JAX-RS, EclipseLink etc. - XML technologies: XSLT, XSL-FO - mobile development: Apple iOS (iPhone and iPad platforms) LinkedIn public profile: http://ru.linkedin.com/in/iobshadko

    $40.00 /hr
    1,533 hours
    5.00
  7. Danny Toi

    Danny Toi

    Web Developer - NodeJS, AngularJS, PHP

    Malaysia - Last active: 2 days ago - Tests: 2 - Portfolio: 1

    Hi, I am Danny from Petaling Jaya, Malaysia. From the very beginning of my career as an IT developer, I take every single moments of my life as an opportunity and try to act on it. I am very keen to keep long-term, trustworthy relationships with clients all around the world. I believe that choice, not chance, determines my destiny and hope to make the beneficial and realistic choice with you.

    $60.00 /hr
    2,931 hours
    4.97
  8. ZhouChe Lin

    ZhouChe Lin

    Top iOS / Android Developer

    Singapore - Last active: 1 day ago - Tests: 4 - Portfolio: 1

    *1000+ Hours Veteran on Upwork* * Member of exclusive TOP RATED mobile developers group* I'm proudly saying I am the one of best developers in the fields of iphone / android mobile applications and games. I am very strong at Objective C, SWIFT, Java, Phonegap / Xamarin, PHP / Javascript, NodeJS. I have rich experience in social applications for mobile devices, geo-location service, real-time messaging, Parse framework, Crashlystics, mobile games using cocos2D, cocos2dx, Unity3D. I have developed 10+ social applications, mobile games, POS applications for certain companies, emergency-purpose applications, shopping & lifestyle applications with In-App payment features. I have almost all sorts of devices including iPhone 4s, 5s, 5c, 6 Plus, iPad Air, iPad 3, iPad mini, Google Nexus, Samsung Galaxy S5, S4, HTC One. I always pursue long-term relationship with great clients. I am happy to help you here. Best, Zhouche Lin.

    Groups: Application Developers Alliance

    $38.89 /hr
    1,190 hours
    5.00
  9. Mikolaj R.

    Mikolaj R. Agency Contractor

    PHP Developer with Frond-End and JavaScript skills

    Poland - Last active: 12 days ago - Tests: 16 - Portfolio: 18

    I have worked as a PHP developer for about 7 years for now. My experience in working on a wide range of projects allowed me to work with large corporations like Adidas, Reebook and Unilever - that kind of clients are very demanding and expect performance to the highest level. Thanks to that cooperation I know how necessary thing is good communication. I worked in a team of developers as well as on my own, additionally, I have experience as a team leader. Worked on small projects and some bigger ones that took over a year to complete. I am very much familiar with the latest technologies such as: PHP 5x (OOP), MySQL 5x/Postgresql 8+ (usually with ORM if needed), MVC Frameworks, jQuery, Mootools, DHTML, CSS3, HTML5, Youtube/Facebook/Twitter API to integrate projects with social media. All my applications are SEO optimized to play good with google and easy to work with SEO companies.

    Associated with: Polcode

    $32.00 /hr
    2,428 hours
    4.70
  10. Rod J.

    Rod J. Agency Contractor

    Top Rated .NET Engineer with 10+ years of experience

    United States - Last active: 3 days ago - Tests: 6 - Portfolio: 10

    I'm very intelligent and very organized developer with extensive experience. I've been brought in to re-architect code, to build new features in existing products, and to build new products from scratch. I've been working with oDesk for over 7 years. I have built a reputable agency (18,000+ hours, 4.97 rating). We have a complete development process specifically designed for oDesk work and we want to win your business! skype:rodmjay My core architecture, asp.net, c#, angularjs, jquery, css(less&sass), sql azure, powershell, xml

    Associated with: IdeaFortune

    $90.00 /hr
    3,678 hours
    4.99