Top Upwork Freelancers

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  1. Borys Duda

    Borys Duda

    "Top Dev" on Upwork - Superb Mobile Native & Hybrid Expert

    Poland - Last active: 7 days ago - Tests: 7 - Portfolio: 10

    Verified Upwork Top Developer I earned "Top Developer" certification from Upwork on July, 2nd 2015. Thanks for reviewing my profile. As a creative professional programmer with 10+ years of experience, I proudly present myself and my skills in the world’s largest online workplace here. Major skills : - Mobile Native Programming    XCode, Cocoa Touch, Swift / Objective C, Eclipse / Android Studio / IntelliJ, Android SDK / NDK, Java / C / C++ - Hybrid Programming PhoneGap / Cordova, Ionic, AngularJS, jQueryMobile, Sencha Touch - Back-end Programming NodeJS, AWS, Parse, PHP, RESTful API, AJAX / JSON / XML, Twilio, Urban Airship, Pushwoosh - Web Programming    PHP, HTML5, jQuery, CSS, MySQL / MSSQL / SQLite - Mobile Games Cocos2d / Cocos2d-X, OpenGLES, HTML5, WebGL, ANDEngine, LibGDX I have lots of mobile devices as the following, so I can test the product on various kinds of environments. - iOS Devices iPhone 3GS / 4 / 4S / 5 / 5S / 6 / 6+ and iPad 2 / Air, iPad Mini with over iOS 7 / 8 - Android Devices Samsung Galaxy S 2 / 3 / 4 / 5, Galaxy Note 2 / 3 / 4, Galaxy Tab, Google Nexus, ASUS Tablet with all versions of Android OS (from Gingerbread to LolliPop) I had many good opportunities to work with medium or big companies and got rich experiences with professional technologies. During the business, I've realized how important it is to keep the communication with clients to create awesome products. I have many experiences with Git, SVN, BitBucket, Trello, Slack for project management and also I can guarantee the refined and optimized codes. I will always cooperate with you, provide you creative and innovative ideas to add the values to our projects with my experience and profession. You will enjoy working with me, a creative, responsive and hard-working partner. Thank you.

    Groups: Application Developers Alliance

    $55.56 /hr
    1,499 hours
    4.96
  2. Justin F.

    Justin F.

    PHP Developer

    Philippines - Last active: 6 days ago - Tests: 1 - Portfolio: 7

    For 3 years, I developed websites using HTML, CSS (Twitter Bootstrap), Javascript (jQuery), PHP (CodeIgniter and Laravel Frameworks) and MySQL. My expertise lies on strong communication skills, great foundation in programming and the ability to manage, adopt and learn fast for benefit of the new website development project. So I'm looking forward for more opportunities to build websites for you or your business. Other skill set are: AJAX, OOP, Api Integration, AngularJs, Wordpress

    $13.33 /hr
    2,810 hours
    5.00
  3. Pedro Tasies

    Pedro Tasies

    Senior .NET Software Developer

    Costa Rica - Last active: 1 day ago - Tests: 3 - Portfolio: 5

    Senior .NET Software Developer with over 11 years of experience using Microsoft .NET, C#, Visual Basic .NET, ASP.NET, ASP.NET MVC, SQL Server 2010/2012, Linq, Entity Framework, HTML, Javascript, AngularJS, jQuery, and many other technologies. I'm a results driven person, my English is perfect and I live in Costa Rica, so I share the same time zone with American and Canadian companies.

    $22.22 /hr
    2,509 hours
    5.00
  4. Elizabeth Romero

    Elizabeth Romero

    Systems Engineer - Software Developer

    Colombia - Last active: 5 hours ago - Tests: 5 - Portfolio: 1

    Software developer with 5+ years of experience in analysis, design and development web aplications. Expert in developing web applications, windows services and web services in Microsoft Visual Studio 2012 using C# .Net, Framework 4.5 and SQL Server. - Proficient in Web Services, SOAP, XML, XSL, XSLT, CSS, HTML, AJAX and JavaScript. - Extensive experience in SQL Server Database design, Database maintenance, developing Transact-SQL Statements, stored procedures, using SQL Server 2008. - Experience using MS SQL Server Integration Services (SSIS) - Solid experience with Application Servers / Web containers such as: JBoss - - Server, Glassfish Server, IBM WAS, Apache Tomcat and Jetty. - Experience with Unix-like (Linux, UNIX, Solaris and AIX-IBM) and Windows-x. - Good working knowledge in UML, Design Patterns, MVC (Model-View Controller), Web-Services. - SOAP, XML, XSD and WSDL - Functional domain experience involves logistic, transport, import and export merchandise.

    $19.00 /hr
    2,777 hours
    5.00
  5. Khoa Nguyen

    Khoa Nguyen

    Senior Winform, WCF, ASP.NET, Extjs, SSRS / RDLC, Telerik, DevExpress

    Vietnam - Last active: 5 hours ago - Tests: 2 - Portfolio: 3

    Experienced with technologies and frameworks: - WinForm with C#, VB.NET, DevExpress, Telerik UI libraries - ASP.NET (MVC) with ExtJS, Ext.NET, jQuery, Kendo UI, and DevExpress - WCF, Web API, Entity Framework - SSRS / RDLC reporting - MS-SQL Server / T-SQL Typical past projects: 1. Online CRM system: A web-based application designed to function as an online CRM system for organizations operating funds in managing fund allotments, transfers, reinvestments, and distribution. Not only for fund management but the CRM also provides core functionality to allow plugin other modules such Contract management, Project management, etc. Technologies used: - ASP.NET 4.5 (C#) - Entity Framework 6.0 - WCF Service providing REST API - Extjs 4.0 - RDLC report technology - MS SQL Server 2012 2. Waterfall calculation web-based application: A web-based application designed to perform complex waterfall calculations for alternative investment funds. Specifically the application automates the Carried Interest Calculation (Calc) which is used to determine the fund manager’s compensation in regards to the profits of the fund. Technologies used: - ASP.NET 4.5 (C#) - jQuery, jgGrid - MS Reporting Service - Microsoft Enterprise Library - MS SQL Server 2012 3. Insurance claim handling: A desktop application to handle insurance claims. The system was developed using VB.NET, Entity Framework, and DevExpress with a lot of T-SQL coding via stored procedures. Technologies used: - VB.NET - Entity framework - DevExpress - MS SQL Server 2012

    $16.67 /hr
    1,280 hours
    4.89
  6. Edsson Madrigal

    Edsson Madrigal

    Project Manager

    Mexico - Last active: 5 hours ago - Tests: 2 - Portfolio: 3

    Computer engineer(ITESM), Project Manager at UrVenue Management System (Urvenue.com), over 6 Years experience designing, developing and leading projects (On teams between 3 and 17 professionals) for companies like Wynn las vegas, Tao Group, Light Group, etc. as well as for Mexican, Michoacan State Government. Some Projects: - Static and Dynamic Websites development (php, mysql, html5, css, javascript); - ERP Systems modules development (Urvenue.com); - Hybrid Mobile applications to scan tickets and driver license as well as manage venue customers(Appcelerator Titanium, PhoneGap, Responsive Design); - 2D Video Game Development (Unity-3D, Corona-sdk); - Sockets to update a reservation system in real time. (Node.js); - Ticketing integration to accept payments over internet (Stripe.com, Paypal.com); - Mobile Marketing and Email Marketing integrations (MailChimp, Mobilestorm); Languages: * Mother tongue Spanish. * Fluent English. * Basic French.

    $25.00 /hr
    329 hours
    5.00
  7. Maxim B.

    Maxim B.

    Expert Mobile Applications Developer

    Russia - Last active: 5 hours ago - Tests: 5 - Portfolio: 3

    I love programming because it is doing users life easier and better and my clients business profitable and technologically. I have been developed business, social and promotion mobile applications last of 3 years. Experienced developer of: 1. Offline, client-server apps; 2. Audio, photo, video apps; 3. Maps and gps apps; 4. Integration with social networks and ads and analytics services. Below in 'Portfolio' section you can look at my better apps which I developed for my clients. If you need an mobile app developer, please contact me to discuss the options. I will develop your app very qualitatively and quickly!

    Groups: Application Developers Alliance

    $29.99 /hr
    487 hours
    5.00
  8. Viktoria Barzashka

    Viktoria Barzashka

    Manual QA tester

    Bulgaria - Last active: 5 hours ago - Tests: 3 - Portfolio: 4

    In the last years I worked as a Junior QA supporting small teams and I have good experience testing websites of different types and levels of complexity. Experience with cross browser testing, functional and regression testing. A little experience with mobile testing, desktop applications and Selenium - still working on those. Comfortable with different tracking systems. Excellent knowledge of the Software QA principles and methodologies. I am constantly working on improving my skills and I am ready to take on any challenge.

    $10.00 /hr
    722 hours
    4.61
  9. Sanju Thomas

    Sanju Thomas

    Java/Spring/Solr/SOA/JEE Architect & Developer

    India - Last active: 22 days ago - Tests: 3

    Technically sophisticated and business savvy professional with over 10 years of experience in Project Management, Application Design, Development, Maintenance, Support & Continuous Monitoring in Java and related technologies. Worked as Technology Owner of Multiple Applications for Goldman Sachs, Bangalore. Adept in providing post-implementation application maintenance and enhancement support with regard to the product/software application; requirement gathering, system analysis as well as finalization of technical/functional/performance specifications. Skills in technical analysis, business process mapping, requirement study and client interaction. Hands on experience in software development life cycle in multiple business domains. A technocrat with hands on experience in leading teams for successful project implementation while ensuring a high-quality customer experience, elevating customer satisfaction in line with SLAs and work processes and ethics. Have experience in reviewing deliverables at regular intervals and steering the team to complete all project on time and within budgetary parameters. Experienced in Agile/Scrum Methodologies & Test Driven Development. Deep knowledge in Object Oriented Analysis/Design and Unified Modeling Language using tools like Rational Rose, Astah UML and Enterprise Architect. Extensive development experience in Java, EJB, Hibernate, JUnit and RMI using Eclipse IDE in Linux/Solaris Platforms. Strong abilities in testing software including creation of test scripts/cases, execution of functional system tests and tracking of defects using various tools. Excellent interpersonal, communication and organisational skills. Holds the distinction of working across software development life cycle with globally distributed cross functional teams for many time-bound and critical projects. Sanju Thomas is certified scrum developer, certified scrum master and certified scrum product owner too. Specialties: Java, Java Script, Test Driven Development, Scrum, Agile, Struts, Spring, Hibernate, Apache Solr, EJB, JBoss, Tomcat, MongoDB, JIRA, Jenkins, Autosys, SVN, Git, UML, Eclipse, JUnit, JMockit, Mockito, Oracle Endeca, JSP, Servlets, JMS, JAX-WS, RESTFul web services, Oracle, XML, JAXB, Sonar, Maven, Service Oriented Architecture, Amazon Web Services, Amazon Market Space (MWS) Web Services

    $33.00 /hr
    54 hours
    5.00
  10. Andrii Ryzhenko

    Andrii Ryzhenko

    Senior Java Developer

    Ukraine - Last active: 1 month ago - Tests: 2 - Portfolio: 2

    Skills • Java Core, Spring, Hibernate, Grails, Web-Services • SVN, Git, Maven, Gradle • Unix, Oracle, Tomcat Summary of work experience Mar 2014 - present Tain Ukraine Senior Java Developer Developing server side and front-end parts of large online gaming platfom, integrate with payment systems, integrate with other applications Jan 2013 – Mar 2014 Luxoft,UBS Investment Bank Scrum master Organize scrum and agile practices, lead process in team, insuring proper cooperation and collaboration with customer, remove impediments and mitigate risks, resolve internal team issues and facilitate productivity, each 2 month business trips to London. Jan 2010 – Mar 2014 Luxoft,UBS Investment Bank Java Developer Clearing system for Trade Asset Services: server-side trade clearing system; ledger and accounting notification system; monitoring of services and manual configuration via JMX; reconciliation with other front-office systems; web-based error reporting and trade management system written on Grails+GWT. Dec 2008 – Nov 2009 ANTK im. O.K.Antonova/IT Department Technical Support Migration to electronic accounting, generation of reports for details comparison tests, using PHP, MySQL. Languages Russian(native speaker), Ukrainian(fluent), English(upper-intermediate), French(elementary) Education 2005 – 2011 National Technical University of Ukraine “Kyiv Polytechnic Institute”. Informatics and Computer Engineering Department. Personal data: Quick trainability, good communication skills, energy, responsible. Interests include snowboarding and photography. Having one non-commercial web-based java project.

    $10.00 /hr
    54 hours
    4.99