Top Upwork Freelancers

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  1. Vadim S.

    Vadim S.

    Experienced Web Developer, skilled at PHP/MySQL/JavaScript/HTML/CSS

    Ukraine - Tests: 14 - Portfolio: 6

    See http://www.skorba.pp.ua/en/ for more details OS, software, environment: Excellent knowledge of Windows and Unix systems at the administrator level. Knowledge and experience in setting up and implementation of application software. Main working bunch — LAMP. Expertise in configuration, support, optimization of web servers and associated environments, using memcached, nginx, HAProxy, Varnish, scribe. Development Experience: 9-year experience of web development in PHP (Java, Python), profound understanding of OOP and MVC model using PHP-frameworks (ZendFramework, CodeIgniter, Symfony, CakePHP, Yii) for its implementation. Experience in designing high-loaded systems, their object model and database structure, using ER and UML-diagrams, documentation and the subsequent successful implementation, upgrade and support. Technologies: Proficient in W3C valid XHTML layout (and solving problems of incorrect display in different browsers), CSS, JavaScript, using various frameworks (JQuery, ExtJs, YUI, MooTools) to implement a dynamic user-friendly interface. Understanding and applying AJAX-technologies, SOAP/REST data exchange between web services, implementation of web services. Instruments: Use — Doctrine, Propel as ORM, as well as the Sphinx for the implementation of relevant and rapid search. Experience in applying for the template - XSLT, Smarty, in-line PHP, LESS. Using Mantis, dotProject, Trello, Trac, Jira, Basecamp, Assembla, Unffudle as a bugtracker for the project management and monitoring tasks. Version control — Mercurial, Git, CVS, SVN. IDE — Eclipse, NetBeans, ZendStudio. Apache, nginx, lighttpd as a web servers, MySQL, MSSQL, PgSQL, MongoDB, memcache, redis - as data storage and cache. Used flexible Agile principles (Scrum, Kanban) for team development and management.

    $55.56 /hr
    673 hours
    5.00
  2. Pavel Veinik

    Pavel Veinik

    10+ years Java developer

    Belarus - 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
  3. Gabriel Paunescu

    Gabriel Paunescu

    JEE, Web Developer

    Romania

    I've been working for the last 16 years in several positions like developer, team leader, analyst, project manager, software architect. I made analysis using UML. Based on my experience, so far, I'm able to offer complete software development solutions, from the analysis, coding and implementation, ending with testing and installations. I start each collaboration with the idea that a further upgrading is very possible. Each software development service will be developed using scalable, extendable architectures that will allow us to add new functionality with a minimum amount of effort and resources. I'm perfectly capable of providing consulting services on: - Analysis - Architectures - JEE (EJB, JMS, Web Services, JDBC, JPA, JSF, JSP, Servlet), Spring, Struts, Hibernate - 3-tier solutions - SQL databases (design & implementation) - MS SQL Server, Oracle, DB2, PostgreSQL, MySQL

    $23.00 /hr
    262 hours
    4.85
  4. Pedro Correia

    Pedro Correia

    Microsoft Certified Master - SQL Server

    Portugal - Tests: 3

    Pedro Correia was born in 1976 on the 265th day of that year. He has been working with SQL Server for over 12 years, since the days of SQL Server 7.0, and his specialties are security and performance tuning. He is also a SQL Server trainer and teaching is one of his passions. In 2012 he became one of the few Microsoft Certified Master - SQL Server 2008. He is a Microsoft Specialist and also has the following Certifications: - Microsoft® Certified Solutions Master - Microsoft Certified Solutions Developer - Windows Store Apps - Trainer - Programming in C# Specialist - Microsoft® Certified Solutions Associate SQL 2012 - Microsoft® Certified Solutions Expert - Data Platform - Microsoft® Certified Professional Developer - Azure - Microsoft Certified Solution Developer - Microsoft .NET

    $55.56 /hr
    14 hours
    5.00
  5. Mohit J.

    Mohit J.

    Senior Oracle Developer/Architect

    India - Tests: 2 - Portfolio: 5

    I am an ETL/ Oracle Database Architect with over 8 years of experience in the following speciality areas: 1. Design and Architecture 2. Data Modeling and Database Design 3. Custom ETL Solutions using Procedural SQL (MS T-SQL, Oracle PL/SQL and MySQL) 4. Data Migration and Cleansing 5. Database Process Automation 6. SQL and Procedural SQL Performance Tuning 7. Advanced Database Application Development 8. Freelance Database Training My past experience includes working extensively with the various clients in the Banking and Capital markets domain in India and United States. Some of the major clients include Fidelity Investments Boston, Citigroup, Royal Bank of Scotland etc. I have been involved in all the stages of SDLC including Requirements Gathering and Analysis, Design, Build, Testing, Implementation and Post-Implementation Support. My core competency lies in strong analytical, problem solving and requirement elicitation skills. I am well versed with the projects involving high volumes of data, data analytics and assure you of value addition, timely delivery and quality deliverables. Please feel free to call/email me for more details/discussion on my past projects and experience.

    Groups: Oracle Certified Associates, Oracle Certified Experts...

    $33.33 /hr
    131 hours
    5.00
  6. Anton F.

    Anton F.

    Web Developer

    Belarus - Tests: 1

    Ruby on Rails - since August 2011 to present day - over than 12 projects Included - HTML5, Javascript, AngularJS, jQuery, CSS3, SASS, CoffeeScript ,Slim, Haml, MySQL/Postgre/SQlite, Sphinx, Solr I really like working with Ruby on Rails, but nonetheless I like tasks included clientside technologies. Because either frontend and backend can contain difficult problems. And solving difficult problems is most interesting part of the programming.

    $16.67 /hr
    25 hours
    5.00
  7. Bhupinder S.

    Bhupinder S.

    Good Android application developer

    India - Tests: 2 - Portfolio: 5

    I have 2 year experience as an android application developer in an organization. I can utilize my skills to achieve the goals of any organization.I have skills to handle the challenging projects and provide the quality work. I have strong knowledge of JAVA, JAVA SCRIPT, C, C++,Objective c programming languages.I also have experience with IPHONE application development and managing database using MYSQL and SQLITE.

    $7.78 /hr
    10 hours
    5.00
  8. Anvar Kiekbaev

    Anvar Kiekbaev

    Java Developer

    Russia - Tests: 3

    Java developer with 3+ years experience. I have worked with Java SE 6/7/8 JDK and Java EE 6/7 stack. Frameworks and Technologies: Guice, Netty, Apache Thrift, Google Protobuf, Disruptor, Akka, Play 2; Spring 3/4 (DI, AOP, Security), Apache CXF, Apache ActiveMQ; backbone.js, jquery, bootstrap. I would really like to be a part of a complex high load project as a backend developer. I always willing to explore new areas of software development.

    $20.00 /hr
    58 hours
    5.00
  9. Devendra Patel

    Devendra Patel

    Software Engineer

    Canada - Tests: 8 - Portfolio: 1

    My objective is to complete assigned task in most efficient manner. I am here to provide my software development skill and also build trust with the clients. Quality work always comes before anything else. Now about my experience. * 8 years working experience in C++ and Software Analysis, Design and Developement * 4+ years of experience working with Qt framework on Windows, Mac and Linux. * Experience with cross compiling Qt for board using mipsel architecture and porting the Qt application to run on that board, * 3 year of experience developing iPhone apps. * Worked on designing and developing multi-threaded, modular application which runs on different hosts and communicate using TCP and UDP (ipv6) using Boost Asio. * 2 year of experience working with Perl scripting. * 1 year of experience working with BB10 platform * Worked on application communicating with webservice using gSoap. The application was created using Qt and running on Plug Computer with Debian. * Fluent in English and very good understanding of Software Development Process.

    $44.44 /hr
    2,547 hours
    4.90
  10. Artem T.

    Artem T.

    Expert Web developer

    Ukraine - Tests: 10 - Portfolio: 7

    Hi, I'm Artem, a freelancer from Ukraine (UTC +2) In my portfolio, there are a few projects that I've developed. I believe that my strong points are my Creativeness and Punctuality. Over the last 7 years, I have developed many interested projects using html5, css3, php, mysql, javascript, jquery, etc. While working on a new project, I like to chat with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. I also have some experience in the following areas: SEO optimization, product management and QA management Thank you in advance for your time and consideration. I look forward to working with you soon.

    $13.33 /hr
    53 hours
    5.00