Top Upwork Freelancers

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  1. Rudi Grinberg

    Rudi Grinberg

    Software Developer

    Canada - Last active: 6 months ago - Tests: 5

    Hello, I'm a passionate software developer specializing in functional programming in OCaml, Haskell, Erlang and the scripting languages Perl, Python, Ruby, and JavaScript. I always stay up to date the latest methodologies and best practices and deliver code quality of the highest class. I've been programming for a long time as a hobby (10+ years) and more recently (3+ years), as a professional. I am confident that I can complete any task that is thrown at me and I guarantee satisfaction with any code that I write. If you care about the maintainability and extensibility of your project then I am a great candidate for your project. Check out my github profile to see what I'm working on in my spare time: https://github.com/rgrinberg I've recently started a tech blog at http://rgrinberg.com Any comments or feedback is most welcome!

    $59.99 /hr
    891 hours
    4.99
  2. Dmytro S.

    Dmytro S.

    Web/Software Developer - Java/Flex/Flash/3D/HTML/CSS/JS/Unity3D

    Ukraine - Last active: 2 months ago - Tests: 8 - Portfolio: 2

    Over the last 8 years, I have developed a range of websites using HMTL, JavaScript, Tibco GI, Flex, Flash, Unity3D, Java(JSP, Servlets, Struts, etc.) and MySQL, MS SQL Server, Oracle including sites for startup companies, small businesses and very large CRM applications for bank with world name. 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 good experience in the following areas: 3D development, OOP, SQL, Ajax and software design and testing.

    $38.89 /hr
    2,009 hours
    5.00
  3. Andres Vergara

    Andres Vergara

    Software Engineer + Expert Developer [English-Spanish]

    Colombia - Last active: 02/18/2014 - Tests: 6 - Portfolio: 14

    I'm software engineer/developer. I have around 5 years of experience in the area, managing IT projects and developing a wide range and variety of applications, including: web portals, information systems and other custom solutions as scripts & templates. In this way I have worked with a variety of technologies & platforms at the back, middle and front end such as: Java, JEE, Spring, PHP, Zend Framework, CSS, HTML, JavaScript, JQuery, Ajax, Flash + Action Script SQL, PLSQL, Oracle, MySQL, Postgres SQL, SQL Server. I also have experience developing for Moodle LMS and apps for Android devices & tablets. I am seeking to build opportunities for you and your business. Thanks & regards

    $15.60 /hr
    1,370 hours
    5.00
  4. Himanshu G.

    Himanshu G.

    Perl/Python Programmer and Offline Trainer

    India - Last active: 4 months ago - Tests: 7

    I have written Perl/Python scripts for about 10 yrs for transliteration, processing domain specific languages, detecting student program similarity, automating web tasks and tests, cleaning up source code repos, sqlite data processing, generating web based reports, processing csv/xls/log/xml files, software packaging, uninstalling programs, prototyping simple web applications etc. I have also helped students and peers with C/Perl/Python/Web Programming. Ask me to do a test task before hire but sorry no homework from school or work left over from office, please.

    $20.00 /hr
    23 hours
    4.93
  5. Hassan Khan

    Hassan Khan

    Senior DBA and Application Developer

    Pakistan - Last active: 7 months ago - Tests: 9 - Portfolio: 4

     Versatile and accomplished management professional offering over 9 years of experience in database and application server administration, and application development across various industries.  Proficient in Oracle Developer 4.5/ 2000/ 6i/ 10g, Access, VBA, Crystal Reports with Oracle, SQL Server, Access Databases on huge networked installations consisting of AIX, and Windows servers.  Recognised for hands-on experience in installing and testing new versions of the database management system and maintaining data standards, including adherence to the Data Protection Act.  Strong working knowledge of controlling access permissions and privileges; developing, managing, and testing back-up and recovery plans, and ensuring correct functioning of storage, archiving, back-up, and recovery procedures.  Showcasing exceptional organisational, multi-tasking, and analytical skills leading to effective operational excellence and communicating regularly with technical, applications and operational staff to ensure database integrity and security.  Adept at commissioning and installing new applications and customising existing applications in order to match them appropriately; and working closely with IT project managers, database programmers, and web developers.  Strong expertise in leading application development teams and administration and tuning of Oracle Databases including Container Terminal Management System, Core Banking, Oracle Financials, HRMS, Treasury, AML, KYC, Siebel, and Knowledge Manager.  Skilled initiator of successful strategies ensuring effective operational excellence and improved work ethic, culture, and performance. Received Appreciation letter from the CEO of Karachi International Container Terminal for successfully implementation of CARe project.  Excellent communicator and a top negotiator with an ability to work under pressure in fast-paced, time-sensitive environments. Proven ability to effectively interact with people of diverse nationalities; comfortable working in a multicultural setting.

    $16.67 /hr
    116 hours
    4.94
  6. Quang Le

    Quang Le

    Senior iOS/Java developer

    Vietnam - Last active: 01/23/2014 - Tests: 5 - Portfolio: 9

    I'm a talented software engineer specializing in iOS platform with 4+ year experience and 3 years for Java technologies. Over the last 4 years, I have developed various iOS applications using: - UIKit framework, Core Graphics for customized UI components - Core Data, iCloud integration for data storage - AV Foundation, Core image - Rest service integration using well-known libraries like RestKit, AFNetworking - Facebook & Twitter integration using SDKs - iAd, In-App purchase - Offline Map using route-me library On Java, I have strong expertise in many web based frameworks using IoC container, Servlet, JSP, Groovy template, WebUI framework, Maven, Git. My strengths include ability to work under pressure and capability of logical analytical thinking in resolving problem. I'm also able to study and apply new technologies quickly. I'm looking for opportunities to assist you in making iOS robust applications from the ground up. Please see my professional work here: https://github.com/quanglt Your hiring will be appreciated as the contribution for my open source projects on this site. Best regards, Quang Le

    Groups: Corona Labs

    $27.78 /hr
    432 hours
    4.91
  7. Yuri M.

    Yuri M.

    Java/C++/DB Developer

    Ukraine - Last active: 2 months ago - Tests: 11 - Portfolio: 6

    7+ years experience in various projects. In my development practice I've worked on both desktop and web-projects where I've used different libraries and frameworks. I have experience in such areas: * as Java developer: Swing, SwingX, EJB 3, Struts, Spring, GWT, Hibernate, JDBC, JSP, XStream, Jetty, JUnit * as DB developer I've worked with MySQL, Firebird, MS SQL Server, PostgreSQL, H2. * as C++ developer: boost library, ability to write cross-platform code, MFC, Qt * worked with applications for project designing: Rational Rose, Visual UML, StarUML, Microsoft Visio. Good understanding OOP and data-store concepts. Also I have some experience in following areas: Microsoft .NET, Ruby on Rails, PHP and Python.

    $30.00 /hr
    4,048 hours
    5.00
  8. Bigyan Shrestha

    Bigyan Shrestha

    Software Engineer

    Nepal - Last active: 2 months ago - Tests: 4 - Portfolio: 2

    I have 2+ years experience in software development as a Software Engineer. * Languages: Java, PHP, Common LISP, C/C++, python * OS: Linux (Redhat, Debian), Windows * Databases: MySQL,Oracle, MsSQL, SQLite, Berkeley DB * Miscellaneous: # HTTP, SOAP, Web services # JBoss, Apache Tomcat, Slide (WebDAV) # Ant, Maven, Bamboo, SVN, CVS, GIT ** Specialties: Research, design, development, and testing of enterprise and desktop applications. Release engineering and tools development more info: http://np.linkedin.com/in/bigee

    $44.44 /hr
    13 hours
    4.94
  9. Dmitry Semyonov

    Dmitry Semyonov

    Proficient and initiative Java(J2EE), Android, C#(.Net)

    Kyrgyzstan - Last active: 07/11/2011 - Tests: 8 - Portfolio: 3

    For last 4 years have been working on some projects, mostly refferring to desktop applications, network tools and servers.Good knowledge of OOP, design patterns, software development methodologies.I have a good experience of working in team and usage of different tools for development: Continuous integration at Bamboo and CruiseControl, source control systems, JIRA, Trac and Bugzilla issue tracking systems, Apache Ant and bash scripting.I'm very interested in non trivial tasks according to network operations.

    $22.22 /hr
    80 hours
    5.00
  10. Pavel Veinik

    Pavel Veinik

    10+ years Java developer

    Belarus - Last active: 6 months ago - Tests: 1 - Portfolio: 1

    I can develop a Java web application of any size and kind. I can understand code in any language. Over 12 years of experience in analysis, design, development and system integration. Over 8 years of teaching Java. Running my own programming school www.itstart.by. Any backend technologies, any SQL and noSql databases... JPA, Hibernate, Spring, Junit, integration testing, CI... Also machine learning and applied lingustics.

    $27.78 /hr
    11 hours
    5.00