Top Upwork Freelancers

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  1. Sergey Plotnikov

    Sergey Plotnikov

    Objective - c developer

    Russia - Last active: 2 days ago - Tests: 4

    I am really enjoying developing applications for MacOS and IOS. My latest experience is front-end apps which use API of web services like Box.net, Youtube, Imgur, EasyPost, etc. I can build app from scratch or modify existing app and upload it to App Store.Also i have a basic graphical design skills , so i can cut separate elements from existing app design. Usually a can spend 3-4 hours a day for programming.

    $11.11 /hr
    196 hours
    5.00
  2. Sergio S.

    Sergio S.

    JEE Architect - Developer / ExtJS Developer / DBA

    Guatemala - Last active: 1 day ago - Tests: 5 - Portfolio: 5

    Highly skilled systems architect and developer with more than 30 years of experience designing, developing and deploying applications, from old single platform “green-screen” to multi-tier / distributed systems. Business experience in manufacturing, accounting, distributing, payroll, finance and TELCO: ✔ Strong knowledge of Java SE and JEE stacks, from early versions 1.x up to latest version SE 8 and JEE 7. ✔ Deep understanding of old technologies such Cobol, ISAM, flat files, pipes, “green screen”, etc. This knowledge allowed me to design, code and implement integrations between new applications with legacy ones. ✔ Solid leading and mentoring skills to help and encourage individuals to maximize their productivity by applying the best practices, frameworks, libraries and technology in general. ✔ I'm always learning about new technologies and tools to ease and reduce time spent in application development and deployment. Technology by itself is worth nothing if it does not solve real world problems.

    $45.00 /hr
    727 hours
    5.00
  3. Riadh C.

    Riadh C.

    Expert in web automation

    Tunisia - Last active: 2 days ago - Tests: 2 - Portfolio: 9

    Expert in web automation, creating bots and scraping websites. With more then 6 years experiences in this field i can automate any process you want with the maximum accuracy and speed possible to a Machine. I use Java for multi-platform development so no matter what OS you got the bot will work for you. I can create light bot that do there task really quick or Human emulation bot which is the revolution of web automation field. I can bypass any kind of security from detecting ip to Captcha..

    $15.00 /hr
    378 hours
    4.93
  4. Diego Blanco

    Diego Blanco

    Linux Systems Administrator

    Spain - Last active: 2 days ago - Tests: 7 - Portfolio: 3

    I'm an expert in GNU/Linux systems and other UNIX flavors. I have experience in CDN deployment, Cloud Computing, High Availability, Monitoring and Video Transcoding and Streaming. I've been working with GNU/Linux since I was 14, what makes more than 10 years of experience so I have a good background in its evolution, tools and administration. I also use to implement tools in shell script and python and I use to code my applications in python. In the last 6 years I've been working as systems administrator and Integrator for an IPTV company that offers streaming and web services. I directed projects regarding software distribution and upgrades automatization, product deployment architecture design and products monitorization. I co-designed and co-deployed the cloud computing platform for the company, its CDN with High Availability, its telephony system and other projects. I really like to learn new technologies, test its capabilities and see what can they do. I like to meet new people, work with them and share knowledge and opinions.

    $33.33 /hr
    716 hours
    4.92
  5. Trimech S.

    Trimech S.

    Computer Engineer/ Senior Mobile (iOS and Android) developer

    Tunisia - Last active: 10 days ago - Tests: 3 - Portfolio: 4

    "Quality Service within deadline" I'm a mobile developer and i have managed and developed many iOS and android apps which run now on store successfully. • 3+ years of experience with Objective-C and the iOS platform • Excellent knowledge of the iOS SDK (Foundation, UIKit, Core Data,AVFoundation, MoviePlayer,Quartz Core,Core Animation, etc) • Extensive experience with implementing ad serving or ad network SDKs (iAds, Google admob, etc) • Knowledge of Facebook mobile SDK and open graph • Familiarity with SQL Lite and relational databases • Also i have expertise in iOS 7. • Map integration(GPS Location) /Google Map API, MapKit Framework • JSON/XML/KML Parsing, REST API • Chat App,... • Client/Server Communication ====> Please feel free to contact me.

    $30.00 /hr
    753 hours
    5.00
  6. Masoom Raza

    Masoom Raza

    Software Engineer, Java/J2EE Developer

    India - Last active: 1 month ago - Tests: 3 - Portfolio: 3

    • 7 years of experience in Analysis, Design, Development and Maintenance of various J2EE applications. • Extensive knowledge of Core Java. • Dynamic Software Engineer and Team Member with rich, cross-functional exposure to the entire spectrum of SDLC functions for diverse range of processes, products / services. • Worked on Struts, Hibernate, iBatis, Spring, Zend, CodeIgniter, Ruby on Rails framework. • Worked in design pattern, OOAD, data modeling, development and integration. • Experience in Integration of various data sources like Oracle, PostGre SQL Server, SQL Server, Flat Files. • An effective communicator with exceptional relationship management skills with the ability to relate working with customers, projects managers and technical teams. • Highly motivated, quick learner, positive and goal-oriented, with demonstrated professionalism, attention to detail as well as the ability to be a good team member and able to lead a team. • Expert in in opensource chat system setup for an organization.

    $16.67 /hr
    269 hours
    5.00
  7. Dragan Savic

    Dragan Savic

    QA Engineer

    Serbia - Last active: 1 day ago - Tests: 4

    Education - Master degree in Computer Sciences and Information Technologies, Faculty of Technical Sciences, Novi Sad, Serbia Area of Expertise - Quality Assurance: Manual testing: • Reviewing user interface • Reviewing software behavior and logic • Documenting any flaws (bugs, layout and workflow issues) • Suggesting improvement options • Cross-browser testing (Firefox, IE, Chrome, Opera, Safari) Automation testing: • HP QTP • Selenium (JET framework) Bug tracking systems: • JIRA, Redmine, Lighthouse, OnTime, adaptable to any Documentation: • Writing test plans • Writing test cases Familiar with: C#, ASP.NET 2.0, 3.5, Win Forms, Web Services, C++, MS Visual Studio, Borland C++ Builder, Java, JSP, Servlets, EJB 2.0 , Web services, JasperReports / iReport, Silverlight 4, Flex 4, HTML, MSSQL, MySql, Sybase – Power Designer, SVN, XML schemas, DirectX, MS Office and all other basic computer programs. Experience Three years working as a QA – manual testing (freelancer): September 2011 - Present :: Quality Assurance on projects with customers all over the world during this period as freelancer February 2013 - April 2013 :: QA - Test Specialist for "ates nearsourcing" company Other working experiences: March 2008 - November 2008 :: Technician specialist in Information Technology for "Telekom Srbija" company January 2009 - February 2010 :: Software Developer (freelancer) July 2010 - March 2011 :: Software Developer for RT-RK company

    $20.00 /hr
    5,307 hours
    5.00
  8. Dmitri Knyazev

    Dmitri Knyazev

    Delphi Programmer

    Russia - Last active: 22 days ago - Tests: 4

    I am 42 years old, my total programming experience is more than 20 years. Programming has been my only source of income all these years. I have an experience in ASM, C, C++, HTML, JavaScript, PHP, MySQL, but my favourite language is Pascal. Delphi programming experience last 14 years (Deplhi 3 was my first IDE). More than 30 finished projects since 2000 on Delphi in a different areas of life : - supervisory control and data acquisition software - checkers game software - gambling machines (including 3D graphics) sotfware - www parsers, bots, checkers e.t.c. - databases (MySQL)

    $19.44 /hr
    420 hours
    5.00
  9. Debal G.

    Debal G.

    Java/JEE Specialist

    India - Last active: 13 days ago - Tests: 3

    Around 9 years of software industry experience in Java and J2EE technology stack. Worked with industry standard web frameworks like Spring, Struts 1.x, Struts 2, JSF 2 with extensive SQL and PL/SQL exposure. Extensive experience with application servers like Websphere 6, JBoss 7, Apache Tomcat 7, Jetty etc. Experienced with distributed transaction management with 2PC protocol and involving heterogeneous transaction participants. Highly experienced in multi threaded standalone data flow engine development leveraging Java 5 concurrency framework. Proficient in enterprise integration with middle-ware technologies like Websphere MQ, Tibco EMS and integration framework like Spring-Integration.

    $27.78 /hr
    898 hours
    4.90
  10. Pradipsinh Vadher

    Pradipsinh Vadher

    Web & Software Developer. Hardcore Coder. Full-time Freelancer.

    India - Last active: 6 days ago - Tests: 3 - Portfolio: 13

    I write the code which is easily readable, modern, clean and well-commented. Optimized for better performance, security and memory management. As of April 2013, I have total 3.4 years of experience as PHP Developer in Facing Solution in Jamnagar, IN. During this time I worked on several websites using PHP & CodeIgniter. I also made Android & J2ME apps for websites. I specialize in several programming languages. I have developed hundreds of desktop applications using C-Win32, VB and C#, firefox extensions+scripts using JavaScript and mobile applications+mods using J2ME. What I offer: • Web Development using PHP, CodeIgniter, JavaScript, jQuery, HTML5, CSS3, JSP, Servlets. • Web Scrapping from any site to MySQL, Excel, XML. Highly accurate and fast bot run on top of browser for data extraction. • Firefox, Chrome, Opera and Internet Explorer userscript extension/addon development using JavaScript. • Firefox extension/addon development using XUL. • Windows Software Development using C#, Visual Basic (6, .NET), C++ (Win32), C • Cross-platform Software Development with Java, Mono.NET. • Linux Software Development with Gambas2. • Mobile Application Development using Android, J2ME.

    $29.99 /hr
    1,028 hours
    5.00