Top Upwork Freelancers

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  1. Justin Tutty

    Justin Tutty

    web development / net presence

    Australia - Tests: 2 - Portfolio: 4

    After graduating in computing, I spent a year developing interfaces and APIs for financial transaction devices in Windows before moving into an area that had more appeal for me : system level communications and messaging, largely focused on a C++ / Unix / Oracle platform. I spent six years mostly juggling messages and communication channels between databases and queues. But I got tired of living in big cities, and hatched an escape plan. I started doing short term contracts for web projects using a range of scripting languages at the server, and AJAX in the browserI began with various short term contracts for web interface development using content management systems and frameworks including Drupal, Django and Node, programming in languages including PHP, Python and Javascript/Coffeescript. I've moved on to building web apps with rich client side frameworks, often with a full javascript stack including mongodb.

    $48.89 /hr
    1,441 hours
    5.00
  2. Norbert V.

    Norbert V.

    C#, ASP.NET MVC, Java, Android, C/C++ developer

    Hungary - Tests: 6 - Portfolio: 9

    I have been developing applications for 4 years in C#, ASP.NET MVC, Android, Java and C/C++. During this time I managed to get skills to write robust and optimal code in these languages and frameworks. I have a deep knowledge in networking concepts, protocols, VoIP technology and different database systems. I have worked with different Linux/UNIX systems and Windows so far. I used design patterns several times in practice, used TDD principles, set up continous integration and builder systems for larger projects. Why hire me: work efficiently, deliver on time, write maintainable code, provide good code analysis, learn new things fast.

    $24.89 /hr
    487 hours
    4.95
  3. Valentin G.

    Valentin G.

    Software engineer (C/C++, obj-c, Python, Matlab, R, ML algorithms)

    Belarus - Tests: 7 - Portfolio: 5

    The last 5 years I have worked mostly as a C and C++ developer in a field of process automation and control (SCADA). Familiar with OOP and TDD, Design Patterns and different methods of software development (waterfall, agile). I have a good experience in the development of multithread client-server applications, windows services, dll-s and cross-platform libraries. One of the specific features of my job was writing readable and easy-portable C-code covered with tests.Another interesting feature is working in small groups dealing with frequently changing goals. The major benefit of this style of work is a great experience on all levels of software development process (from project design and requirement development to final tests). Besides, I have a great interest in the research of new technologies and IT science related fields.

    $25.00 /hr
    549 hours
    5.00
  4. Pavel M.

    Pavel M.

    QA manager/Team Lead/Senior QA engineer

    Belarus - Tests: 2 - Portfolio: 1

    5 years of experience in software testing and QA management. Familiar with almost all QA methodologies, bug-tracking tools, requirements-tracking tools. Project management environment and QA team can be provided on demand, as well as single QA member. As for now, i believe that QA services will help every company/customer archive their goals with high quality.

    $40.00 /hr
    363 hours
    5.00
  5. Ilya Frolov

    Ilya Frolov

    System Administrator and Web Developer

    Russia - Tests: 7 - Portfolio: 6

    I am java developer and linux system administrator. Have an interest in all kind of web based programming technology like python, ruby, perl. I have ability to create software from abstracts and fundamental algorithm design to deploying on production servers and zooming in business. I am interesting in java, open source, secure networking (SSL and so on), servers maintenance. Prefer full circle development - from idea to full production server support! I like to learn and follow the most modern technologies. I have 3+ year of shared web hosting design and service.

    $16.67 /hr
    77 hours
    5.00
  6. Eudis Duran

    Eudis Duran

    Python/Javascript/ReactJS/NodeJS/Django/Clojure/Backbone

    United States - Tests: 6

    I am fluent mostly in Javascript/ReactJS, Python, NodeJS/MongoDB and various front end libraries; namely jQuery, RequireJS, Underscore and Backbone, to name a few. Currently, I am looking for small contract jobs, ranging from a day to a week at most, as I have a full time position as a Web Developer and cannot commit any more than that. I have 5 years of professional experience, ranging from MySQL + PHP, Javascript Front End, Python/Django, NodeJS/MongoDB to C# + MSQL. 10+ years working with Javascript. 6+ years working with Python and 10+ years of general programming experience.

    $40.00 /hr
    116 hours
    5.00
  7. Glenn Calleja

    Glenn Calleja

    Glenn Calleja

    Malta - Tests: 2 - Portfolio: 2

    I am a full time iOS app Developer, and have been solely responsible for various apps including PageProud for iPad, apps for insurance companies, and much more. I have used the latest iOS technologies and have upgraded many apps for iOS 7. I also have experience working as a freelancer, where I was responsible for the creation of various iOS apps from start to finish. I have a B.Sc(Hons.) in Computer Science & AI from the University of Malta. Software and Technology Technologies: OpenGL, DirectX, WPF, WCF, Win32, Swing, Unity, ASP.NET iOS - Cocoa Touch (UIKit, Core Data, Core Audio, Media Foundation, Game Kit, Map Kit, Core Location, Game Center, iCloud), Core Foundation, Core Animation, Grand Central Dispatch Databases: MySQL, MS SQL, SQLite

    $22.22 /hr
    54 hours
    5.00
  8. Pavel S.

    Pavel S.

    Java Developer

    Russia - Tests: 5

    In programming since 2004 (Oracle pl/sql in Banks). Now I am Java Developer (3 year of J2EE web development). I have involved in website development using JSF 2, JSP 1.2, JSTL 1.2, Servlet 3.0, Spring, JDBC 4.0, Tomcat 7, MySql. Experience in Maven, JUnit, Mockito, Git, Jirra. Understand HTML, CSS, Sql, Java Script. I want to strengthen my knowledge in J2EE with your greate Team. Also I want to become Java Enterprise Architect and work hard for this! Looking for any part time job upto 10 hours per week.

    $16.67 /hr
    36 hours
    5.00
  9. Alexandr Klyuchnikov

    Alexandr Klyuchnikov

    Software Developer

    Kazakhstan - Tests: 2

    Last year I worked as Testing Software engineer. During this work I got a huge experience of using TestComplete. This job improved my english skills, Javascript skills and my PHP skills a little (I participated in Knowledge Base development as architect and backend developer). Before this job I participated in developing of Automatic Control System using PHP, HTML, DHTML, CSS, JavaScript and PostgreSQL for 3 years. I am experienced in database desingning and backend developing. I like to create something new, and I like programming a lot. In my spare time I study Java and Android development.

    $30.00 /hr
    3,954 hours
    5.00
  10. Micheal S.

    Micheal S.

    Groovy & Grails, Java - Freelance Developer

    Australia - Tests: 2 - Portfolio: 2

    On the author list of bitcoinj project http://code.google.com/p/bitcoinj/source/browse/AUTHORS . However I did only contribute one patch, nonetheless this required reading c code and translating functionality into java. Worked with linux for 4 years, primarily Ubuntu. Eclipse is my primary Integrated Development Environment(IDE). Initially began programming with python, learnt a little bit of C++, including integration of python and C++. Unfortunately it has been at least 2 years since working with python and C++, so my knowledge of libraries and the languages has diminished. Currently spending a lot of time with Groovy and GRails. In the last two years programmed primarily in Java. Have experimented with github. Proficient in HTML5, CSS3, and javascript. Can read and write UML diagrams. Familiar with conventional Cryptography techniques, SHA, AES. Familiar with some Zero-Knowledge Cryptographic protocols. Available for video chat.

    $44.44 /hr
    1,176 hours
    5.00