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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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Time needed to complete a Java project on Upwork.

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Last updated: October 1, 2015
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Wassim Salib

Wassim Salib

Experienced Asp, Silverlight web designer, and Database developer

Egypt - Tests: 14 - Portfolio: 1

during my work, I have developed a wide range of websites using HMTL, DHTML, ASP.NET, Silverlight, JQuerry and MySQL including sites for emerging companies and multinational businesses. I am seeking opportunities to build and design websites and specially Silverlight components. I also have some experience in the following areas: SQL, Oracle, Ajax, OOP, Security and software design and testing. Experience with amazon cloud environment

$38.89 /hr
409 hours

Alexandr V.

Alexandr V.

Certified Professional

Russia - Portfolio: 4

12 years experience IT industry. Currently working in financial trading sector of IT. Skills: Programming Languages Java SE, EE (spring, hibernate, jsp) 4 years of Delphi (7, 2007-2010) 3 years of C\C++ under Linux PHP Databases Oracle, Mysql, Firebid\Interbase, MSSQL I have experience with GPS\GSM software development. Also, I has experience with Android software development.

$20.00 /hr
0 hours

Danijel Jambrečina

Danijel Jambrečina

Java developer

Croatia - Tests: 8

I'm a master of science in Information and Communication Technology. Over the last 5 years I have worked on several projects with several different technologies. I prefer Java, but also have experience with ASP.NET and C#. I also have experience with databases (PostgreSQL, MySQL) as well as with HTML, CSS and PHP. For more details, check my LinkedIn profile:

$16.67 /hr
0 hours

Leandro Glossman

Leandro Glossman

Software Engineer


I'm a highly trained software developer with over 10 years of experience working on projects ranging from startups to large scale. I have deep knowledge of Mobile, HTML5 and Backend development. Technology is my passion so I'm always looking forward to learn new things. I'm the kind of professional who you can always expect to deliver on time with great quality standards.

$40.00 /hr
0 hours

Brad A.

Brad A.

Database design specialist.

United States - Tests: 2 - Portfolio: 1

I am a computer programmer with decades of experience using computers and peripherals in a variety of applications. I have worked independently on unique projects creating automated databases so that management (top-level to lower) can have useful data easily presented to them in a format that they can quickly use to make necessary adjustments. All of my work has met or exceeded expectations, and I do not stop until my employer is satisfied with my work. Before beginning a project, I will ensure that I understand well what is expected of me and work diligently and efficiently to accomplish it. Although I strive to do the best work possible, I realize that it may not be exactly what was wanted. Therefore, I welcome direction on necessary changes and strive to implement it quickly.

$29.00 /hr
1 hours

Simon Wikstrand

Simon Wikstrand Agency Contractor

System Developer

Sweden - Tests: 1 - Portfolio: 4

Sunstate AB is a design and development consulting firm that designs and builds custom software systems. As a young, passionate and creative firm, we strive to approach and build systems that makes a difference for our customers. We see communication and reliability as a foundation for a successful partnership with our customers and will make a great effort to stand by these values. We build modular applications that are easy to maintain, and can scale up when the need comes. We are honest, and we make sure that you get what you expect at delivery. We are currently working with: - Web design - PHP5, HTML5, CSS3, JavaScript, MySQL, Go, Java

Associated with: Sunstate AB

98% Job Success
$55.00 /hr
89 hours

Oleg T.

Oleg T.

J2EE/Spring/GWT/GAE/Hibernate developer

Ukraine - Tests: 3

OBJECTIVE Senior Software Developer EXPERIENCE Eight years of software development experience across multiple programming languages including Java, C++/C#/ObjectiveC. Six years of extensive Java web development primarily developing J2EE applications for Oracle, MySQL, PostgreSQL databases. SKILLS Java technology: Java, J2EE, JSP, Spring, Struts2, Hibernate, JPA, GWT, Log4j, JUnit, Ant, Maven, Jboss, Glassfish, Tomcat, Jetty etc. Databases: Oracle, MS SQL, PostgreSQL, MySQL. Development process: RUP, UML, Documentation, Version control, QA.

$33.33 /hr
935 hours

Ievgen Gusher

Ievgen Gusher

Java Software Engineer

Ukraine - Tests: 2

I'm J2EE developer. During my work I have hands-on experience with Spring, Hibernate. Also I have developed secure web-services with various authentication methods (OAuth, LDAP, CAS) using HTTPS as a transport layer and designing PKI infrastructure. I have dealt with HTML5, Ajax, Javascript, JSON, SQL. As a datasource I worked with Relational DB as well as NoSql DB (redis) and Graph DB (neo4j). I am familiar with Iterative+Incremental methodologies (XP, Scrum, Kanban, RUP). I have applied TDD on my projects to control their quality.

$18.89 /hr
67 hours

Ralph Swartwood

Ralph Swartwood

Certified WebSphere Administrator

United States - Tests: 1

I have 10 years experience working with WebSphere Application Server version 3, 4, 5, 6 and 7 on AIX, Solaris, HP/UX, Linux, zLinux and Windows. I am certified in versions 5, 6 and 7. I am looking for short and long term engagements including installations, resolution of a specific problem and ongoing support. I also have experience working with WebSphere Portal Server, Process Server, IBM HTTP Server and Apache. I developed JACL and Jython scripts to automate application deployments and to make configuration changes. I am very familiar with Java programming of servlets, JSP, SQL and JMS. I developed a Nagios plugin that monitored JVM availability and Performance Monitoring Infrastructure (PMI) metrics. I can analyze thread dumps for JVM hang problems and heap dumps for OutOfMemory issues. I also have experience with DirectConnect and training in DataPower appliance administration.

Groups: TrueBLUE

100% Job Success
$50.00 /hr
44 hours

William Grzybowski

William Grzybowski

(Web)Development and Unix-like Consultant

Brazil - Tests: 7 - Portfolio: 2

Before I even go to university i started working with Web-development. My first experience was about 6 years ago with pure HTML using frames in Dreamweaver 3. Since then I have worked hard to improve my skills in every way possible, not just as a web-developer but as a general programmer, and now I work essentially with Open Source software like Python(+Django), PHP, Linux/FreeBSD, PostgreSQL, etc.My degree in computer science helped me to understand the basics of a computer from the bits in the processor instructions to multimedia, and thus can be used everywhere to improve the final result of a project.

$33.33 /hr
3,500 hours