Top Upwork Freelancers

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  1. Dzmitry Sapezhka

    Dzmitry Sapezhka

    liferay, java developer

    Belarus - Tests: 2

    I'm involved in software development during last 9 years. I have good abilities and I'm looking for Java and Android projects. Skills: Java (Spring, Spring Web MVC, Lucene, Compass, Struts, GWT, JPA, Hibernate, Toplink, JAXP, Castor, Ant, Maven), Java EE (EJB, JSP, Servlets, JMS), RDBMS (PostgreSQL,MySQL, Oracle), (X)HTML/CSS/Javascript, XML/XSLT/XPath, PHP, GNU/Linux

    $33.33 /hr
    24 hours
    4.41
  2. Andrew Lisun

    Andrew Lisun

    Android developer

    Ukraine - Tests: 4 - Portfolio: 2

    If you're interested in efficient, well-designed, extensible android application, most likely I'm perfect choice for you. I have strong skills in object-oriented programming and Android app development. My applications are portable between various android devices and have pleasant user interface. Apart from this I had experience with Facebook API. So, if you also need to make your app social you're looking through profile of developer who can do this perfectly. Also I had experience with git, C++, Qt. I guarantee you a high quality applications.

    $15.00 /hr
    63 hours
    5.00
  3. Shehroze Farooqi

    Shehroze Farooqi

    Web Devloper and Android Developer

    Pakistan - Tests: 3 - Portfolio: 5

    Over the last 3 years, I have developed a wide range of websites using HMTL, PHP, and MySQL . I have been working extensively in JavaScript and Jquery. I am also working on android development project. 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 have experience in following areas: Web Deveopment (PHP,ASP,JSP,SQL) Web Designing(HTML,CSS,CSS3) Javascript, Jquery,and some other libraries Android Development Iphone app development C++, Java and c#

    $25.00 /hr
    53 hours
    4.94
  4. Yan Chumak

    Yan Chumak

    Android Programmer - Java, C/C++, JS, PHP

    Ukraine - Tests: 4 - Portfolio: 7

    I have four years of experience developing on Java/C++/C/PHP, have excellent skills such as Javascript / JQuery / HTML / CSS. All of my project is successfully finished and now use by people, some of them you can see follows with link (https://play.google.com/store/apps/developer?id=M2M+Ukraine+Ltd). Just have a good experience in writing an android application with the use by NDK. Developing backend server multithreading applications using C/C++/Java(Servlets), possibly as a bunch of android application + backend. Some time working on a web project using JS/PHP. In my spare time I develop network applications under UNIX systems, for fun. I also have some experience in the following areas: SQL, Ajax, OOP, pattern design and software design.

    $8.89 /hr
    17 hours
    5.00
  5. Aniruddh P.

    Aniruddh P.

    Sr Java Developer

    Australia - Tests: 4 - Portfolio: 1

    Over the last 12 years I have been working on Java/J2EE, Struts, Swings, Xml Api's and mobile technology related projects. My core competency lies in most of the Java Api's as well as in developing new applications as well as providing expert support for maintaince applications. I am very good at coming in at any stage of the application development and getting on with providing expert assistance. I am seeking oppurtunities to work on Java and web technologies. I have been involved with a variety of projects ranging from taxation/accounting applications to telecom projects to enterprise asset managment applications. Thanks and Regards

    $25.00 /hr
    3,262 hours
    5.00
  6. Krishna Kumar

    Krishna Kumar

    Mobile Developer

    India - Tests: 2

    I have been working on mobile development for more than 2 years. Experienced with IOS app development both for ipad and iphone. Experienced with external API's like Facebook and Twitter integeration in IOS app. Experienced in Titanium (cross-platform for IOS, Android, MobileWeb) app development. Having thorough understand and experience with Objective-C, Javascript, Json, XML and design principles. Experienced in executing large scale projects. Coding is Life for me!

    $22.22 /hr
    769 hours
    5.00
  7. Alexander C.

    Alexander C.

    Scala / Java / Haskell developer, Full Stack Engineer, Consultant

    Russia - Tests: 2 - Portfolio: 2

    Java developer with 8 years of experience. Now also Groovy(2 years) and Scala(1.5 years) developer. Java: Hadoop, Nutch , Lucene/SOLR/ElasticSearch, Morphia(MongoDB ORM), parsers/crawlers(using Apache Httpclient, HtmlUnit and own microframework), Web MVC(Struts 1.x/Grails), Java Desktop Applicatins(Swing) / Applets, webservices (w. Restlet framework), RabbitMQ Java client, Riak Java Client Scala: PlayFramework 2.x, Lift, Akka, ReactiveMongo Groovy: Groovy scripts / Gant build scripts / Gradle Databases: SQL(PostgreSQL/MySQL), MongoDB, Riak, SOLR/ElasticSearch PHP scripts, linux(fedora/centos/ubuntu) server administration, SVN / Git, SEO methods/scripts, affiliate marketing. Check my blog(chepurnoy.org)/GitHub(kushti) also.

    $60.00 /hr
    1,026 hours
    4.99
  8. Ruben Semerjyan

    Ruben Semerjyan

    Inovative Mobile VOIP, Social, Audio/Video Streaming Developer

    Armenia - Tests: 2 - Portfolio: 1

    I am an innovative, extremely detail oriented and perfectionist Software Development Architect, with expert knowledge in VoIP, audio/video streaming and processing, messaging and social media. My a little over 8 years of experience in VoIP industry gave me a strong knowledge of the protocols, technologies and available solutions. 3 years of successful mobile applications development, architect and project management gave me confidence in creating robust and technologically challenging applications. I am passionate about developing robust, innovative and leading edge applications, getting increasingly challenging assignments and applying disruptive technologies. Looking for a work on technologically challenging projects (in an agile environment preferably), while offering my expert knowledge base, ability to learn quickly and apply new techniques. I usually bid slower than others, because of reading the full job description, trying to estimate all requirements, needed technologies and solutions.

    $25.00 /hr
    28 hours
    5.00
  9. Toni Petrina

    Toni Petrina

    Senior Mobile developer/Microsoft MVP for .NET

    Croatia - Tests: 6 - Portfolio: 2

    Math graduate with major in Computer Science. Software developer for more than 12 years. Works primarily on Microsoft stack (.NET, MFC, WPF/Silverlight/WinRT), but also skilled in other technologies like PHP. Likes to work on web/mobile projects and is passionate about game development and graphics oriented development. Speaker at a local and regional conferences and events, passionate blogger and community contributor.

    $44.44 /hr
    29 hours
    4.37
  10. Dmitry Sytchev

    Dmitry Sytchev

    Asterisk/Freeswitch/Kamalio expert, VoIP engineer, Linux administrator

    Russia - Tests: 7 - Portfolio: 1

    I have more than 10 years of experience in installation and support of carrier-grade VoIP services based on Asterisk, OpenSIPS, Kamailio, Freeswitch and proprietary SIP/VoIP software. My professional interests are Callcenters, automated dialer systems and integration of VoIP software with company information flows. You can rely on my strong engineering and programming skills for projects starting from single VoIP server to a complete wholesale/carrier VoIP solutions including billing, call data analysis, security and fraud prevention. I have developed complete SIP solutions for VoIP carriers worldwide: Proxy/Registrars, IVR, prepaid systems, multi-tenant VoIP switches, hardware PSTN gateways (Cisco AS5300/5500, Audiocodes Mediant 2000, Quintum Tenor). I have experience in setup, administration and security of Asterisk, FreePBX, Elastix and FreeSWITCH PBX installations. As a programmer I use PHP, Javascript (both client-side using jQuery and Angular.js and server-side with node.js), Perl (system scripts/applications, Mojolicious webapps). I also have experience in development and administration of MySQL and Microsoft SQL Server databases. I'm experienced network engineer, skilled in routing and switching, general network architecture planning and deployment, network monitoring and security, including HA solutions (heartbeat/pacemaker). I use Zabbix and have some experience with Nagios and other monitoring software. I can also offer you consulting support in VoIP and network technologies.

    $33.33 /hr
    93 hours
    4.95