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Post your Java projects on Upwork and hire expert software engineers and senior Java developers. They can create mobile applications for Android and iOS, redevelop Android widgets, modify and add new Java scripts to your custom Java software, or develop GUI applications with the Swing GUI widget toolkit. The java developers on Upwork are experienced in Java persistence frameworks (like Hibernate), web development, security or database frameworks and Java project lifecycle management tools (like Maven). They can also check, fix or add new Java classes into your Java code, or manage your software debugging, quality control software development or testing tool programming.

Java is a class-based, object-oriented computer programming language that is ideal for cross-platform application development. It comes with a library of commonly used classes and utility functions, called the Java API. On Upwork, the world’s largest online workplace, companies hire experienced Java architects and software engineers to develop all kinds of cross-platform applications, from torrent clients and media players, to helpdesk tools and mobile apps.

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Last updated: October 1, 2015
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Victor Macik

Victor Macik

Software Developer

Germany - Tests: 1

Over the last 12 years, I have developed a wide range of websites and backend solutions using Java, C++, PHP, and MySQL including sites for different scales of clients. My core competency lies in complete end-end development of backend solutions, along with turn-key products. Feel free to consult with me on any matter, as I'm working independently I promise to provide help even if you aren't interested in conducting business together - this is just the friendly way.

$33.33 /hr
33 hours

Hitesh Pahuja

Hitesh Pahuja

Senior Java Developer

India - Tests: 3

Let me introduce myself as Hitesh Pahuja, having 9 years of IT experience as Senior Java Developer/Analyst. I have a strong background in Object oriented architecture, analysis, design and software development using latest technologies like Java, J2EE , Scala, Akka technologies. • Expertise in Product Iterative Development Model, Agile software development technique using principles like Test Driven Development, Continuous Integration and Automation testing etc. • Expertise in working throughout the project full-lifecycle, had worked on every phase of SDLC e.g. Application Security, Deployment, Requirement Handling, High level designing, Data Analytics and Statistics, Enhancement etc. . Experience in Application security at various layers like Web layer [ Fiddle, Nessus etc.], Web-Services Layer [ SSL, Fuzzing] etc. Extensive experience in Agile delivery of software using practices from Scrum, eXtreme Programming etc. Well versed experience in Test Driven Development, Mocking techniques and CI tools like Bamboo, Cruise Control and Hudson etc. I had worked with various types of applications like • SOA based using web services technologies. • Messaging based using JMS over JBoss/IBM Web Sphere. • Web-based application using technologies like Spring MVC, HTML, JavaScript, Ajax, JQuery etc. • E-Commerce based application. • Customer Support based application which involves dealing with client calls and resolving their technical issues. I have expertise in various domains like Banking [Retail and Loan based], e-Learning, Publishing Education and Retail etc. I am very keen to learn new technologies and business knowledge. I accept challenges and can work independently, can lead a team and act as a mentor to my juniors on technical front. For employment prospective I am open to contract role and on negotiable rates. I can make assure my stability with company and available immediately. Sincerely, Hitesh Pahuja,

$27.78 /hr
550 hours

David Lundquist

Software engineer


Summary Ever since I can remember technology has been an important part of my life, this has taken me from founding my own small technology company back in Sweden to working on projects all over the world. This same focus on technology also allows me to have a broad understanding of how technology is evolving and it has given me the ability to widen my knowledge which is now spread across several different kinds of technological areas. References will be provided upon request. Specialities I am an experienced developer within the mobile sphere having built both back office software as well as fully fledged content delivery and billing solutions for some of the biggest carriers in the world. Ive had several titles in top lists in the apple appstore and on carriers across the world. While mobile has been my main focus the last couple of years my base lies in web where I have developed solutions to allow companies of all sizes to have a presence on the web. I’ve built systems and websites for everything from small local companies to big global companies. For the last couple of years my focus on web has been towards Ruby on rails using a BDD philosophy having finished both big and small sized projects by successfully leveraging cucumber acceptance tests and story writing as well as unit tests based around rspec. While being a partner in different businesses I have also gathered skills in business planning and management.

$66.67 /hr
22 hours

Oleksii A.

JavaSE/JavaEE Developer, PhD in Information Security

Ukraine - Tests: 5

Enterprise and Web Application Developer. PhD in Information Security. Especially interested in building complex (transactional, concurrent, secured, scalable etc) Java/J2EE based systems. Strive for creating systems based on sound technical designs by applying OO design concepts and software patterns.

$38.89 /hr
1,277 hours

Khurram S.

Khurram S.

Experienced Java Web Developer

Pakistan - Tests: 6 - Portfolio: 3

Web application developer. Languages: Java, JavaEE,PHP, .Net , HTML, XML, JavaScript Android development kit Complex Reports Development using Ireport and Jasper Reports and JReport Software & Technologies: Database: Oracle,MySQL, MSSQL, PostgreSQL Reports : IReport & JReport Platforms: Microsoft Windows, Windows Embedded, Android

83% Job Success
$8.89 /hr
254 hours

Samiullah Khan

Samiullah Khan

IT Expert | Mobile | Web | Embedded | Avionics Developer

Pakistan - Tests: 8 - Portfolio: 4

Sami has years of software development experience in C, C++, Qt, Java, C#, WPF, WCF, .Net remoting, Mono, VB, VB.Net, HTML, CSS, JavaScript, ASP, ASP.Net, SQL and SQL Server. Since 2007 he has developed wide range of high quality and revenue generating software including real time applications, embedded software, web services, n-tire distributed applications, data acquisition software, database development and management, audio broadcast applications, software integrated electronics products and security software.

$35.00 /hr
65 hours

Tarun Kumar

Tarun Kumar,WPF,WCF,C#, MVC,SQL2008/12,Php,Mysql,html5

Bangladesh - Tests: 1 - Portfolio: 9

More than 5 yrs,I have experience about manage the different aspects of project.I have work experience with user satisfactory design of application and website.I work with Software Requirements Specification, Feasibility Analysis, Software Design Plan, User Manual, Testing a web site and development software. Below show my experience area for tools and technology. • Language :: C#3.0,C#4.0,C#5.0, ASP.NET,WCF,WPF, PHP • Framework :: .NET3.5&4.0&4.5,Spring.Net,CodeIgniter, DotNetNuke (DNN), Ajax,Telerik • Others :: ADO.Net, Entity Framwork, LINQ • Design :: JavaScript,Jquery, CSS3, html 5,Bootstrap • Code Architecture :: MVC3,MVC4, N-tire,Multi-tire( DTO,DAL,BLL, UI) • APIs :: PayPal, Google Map, Face Book, Twitter. • Concepts ::OOP,OOA/OOD,ORM, Dependency Injection, Refactoring, WebSoket,SVN,Design patterns, Test Driven Development (TDD),UML, Project management and estimation. • Software :: Visual Studio 2008&2010&2012,Net Beans, • Data Base Server :: MS SQL Server 2005&2008&2012, MySql,MS Access • System :: Windows server 2003 & 2008 & 2012, Windows 7 & 8.

$7.00 /hr
11 hours