Top Upwork Freelancers

Clear all filters
  1. Anton Chigin

    Anton Chigin

    software engineer

    Russia - Tests: 7

    Looking for an exciting and challenging job, where my skills and knowledge can be use and enhanced to the fullest. I prefer C/C++ as my basic languages, however I also had an experience in other languages. I have strong knowledge of algorithms and data structures. I have an experince in designing kernel modules and drivers for both Windows and Linux platforms. My extensive problem-solving background enables me to understand and relate to clients’ requirements and expectations. I always provide End-to-End solution that meets all the clients' requirements.

    $22.22 /hr
    322 hours
    5.00
  2. Vitali H.

    Vitali H.

    Software Architect / Developer, Java/J2EE, Android, Web

    Belarus - Tests: 1

    Wide experience in software engineering. Languages: - Java (Spring, EJB, Jersey, Atmosphere, Hibernate, OpenJPA, JMS, OAuth, Morphia, Web Services (SOAP, REST), Android, GWT, JSF/JSP, Swing, etc), - HTML, CSS, XML, Javascript (jQuery, Prototype, etc), Databases: MySQL, PostgreSQL Oracle, MongoDB; SEO & User behavior tracking: Google Analytics, Yandex Metrika OS: Ubuntu, Debian, CentOS, Windows; Web servers: Apache, Nginx, Tomcat, Glassfish, Jetty; Other services & tools: SVN, Git, Red5, JasperReports, Maven, JProfiler, Zabbix, Sonar;

    $20.00 /hr
    22 hours
    5.00
  3. Andrew O.

    Andrew O.

    Team Leader / Architect / Software Engineer

    Russia - Tests: 6 - Portfolio: 8

    Have ten-year experience as software engineer. Have a strong knowledge and solid understanding of relational database design, SQL, C#, ASP/ASP.NET and XML/XSLT. Also do a many others software development tools and languages when the opportunity arises. I consider myself a composed person, sociable with friends and colleagues. Have good analytical and organizational skills, have excellent learning ability.

    $30.00 /hr
    9,593 hours
    4.50
  4. 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
  5. Rifat Nabi

    Rifat Nabi

    Fullstack Web Developer - AngularJS, BackboneJS

    Bangladesh - Tests: 5 - Portfolio: 20

    I've been working with PHP, MySQL, xHTML, and JavaScript for over 7 years. I'm always interested to work with new technologies like HTML5, CSS3. I'm also working as a consultant. I've strong knowledge over Object Oriented Programming (OOP) and Design Patterns. You can find me experimenting at - https://github.com/torifat Helping Others at - http://stackoverflow.com/users/262456/rifat My Presentations at - http://speakerdeck.com/u/rifat

    $30.00 /hr
    89 hours
    5.00
  6. 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
  7. Enrique Matos Alfonso

    Enrique Matos Alfonso

    Professional of Computer Science

    Germany - Tests: 2

    I graduated from the University of Havana and worked in several fields of the Computer Science, mainly related to Artificial Intelligence. Then I came to Germany and completed a master degree on Computational Logic in 2014. I have published articles about Genetic Algorithms and Classification Techniques in machine learning applied to other fields like Electrical Engineering and Propositional Logic. I look forward to applying more Artificial Intelligence techniques to to solve interesting problems in other fields.

    $33.33 /hr
    163 hours
    5.00
  8. 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
  9. Plamen D.

    Plamen D.

    .NET & database developer

    Bulgaria - Tests: 4 - Portfolio: 3

    Certified professional web developer with 5+ year experience creating business applications. Quality and correctness - these describe my work best. I can create or modify applications for you in the following technologies: - .NET (such as ASP.NET, MVC3, ADO.NET, Web Services, Windows Communication Foundation, Entity Framework, LINQ) - SQL Server 2005 - 2008 programming (stored procedures, functions, triggers) - Front-end development with jQuery and many other libraries for complete application

    Groups: Microsoft Certified Professionals

    $15.00 /hr
    136 hours
    4.73
  10. Shamandura C.

    Shamandura C.

    Game Developer

    Philippines - Tests: 1

    I seek for opportunities to develop fun and exciting games and hone my programming, math, and physics skills in the process. I have a broad experience with Unity3D and have worked with Unigine as well. I was involved in MMORPG projects and wrote game flow, UI, networking, physics code as well as some shaders. I now work with a team developing mobile games for IOS. I am a front end developer but engage in back end code writing and maintenance as needed. I have used the following tools and languages: Unity3D, Unigine, UnityScript, UnigineScript, C++, Photon, Badumna, XM, SQL, PHP If you think I have the skills you need, please feel free to contact me.

    $30.00 /hr
    424 hours
    4.80