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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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Java Job Cost Overview

Typical total cost of Upwork Java projects based on completed and fixed-price jobs.

Upwork Java Jobs Completed Quarterly

On average, 406 Java projects are completed every quarter on Upwork.


Time to Complete Upwork Java Jobs

Time needed to complete a Java project on Upwork.

Average Java Freelancer Feedback Score

Java Upwork freelancers typically receive a client rating of 4.73.

Last updated: October 1, 2015
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Cuong Le

Cuong Le

Senior Software Developer (C/C++/MFC,Java,...)

Vietnam - Tests: 4 - Portfolio: 4

Thanks for your reviewing. I am Cuong Le. I have over 6 years of software development experience in C/C++/MFC. Experienced in software development life cycle including requirement analysis, design and implementation. Programming Languages: C/C++, MFC, C#. Databases: PostgreSQL, SQL Server. Software process: CMMI, Agile (Scrum, Jira tool). Other: Visual Studio, Eclipse, UML, GIS, GPS, XML, XML-RPC, COM, Hook, GDI, DirectX (DirectDraw, DirectShow, Direct3D), Touch Screen device and printer device. Further information, please refer at

94% Job Success
$8.89 /hr
22 hours

Aram B.

Aram B.

C#/.NET Winforms/Java SE and Android Developer

Armenia - Tests: 6 - Portfolio: 5

Hi, my name is Aram. I believe that the core understanding of the problem is the 90% of work done, so I'm always trying first to understand what client wants and then start development process. As I didn't have a time to work remotely before I don't have any job done here so I don't have any feedback. I'll be appreciate to you if you'll give me a chance to show my professional skills and punctuality. Thank you! Below are my skills: .NET and C#: Winforms, Collections, Multithreading, Sockets, etc. Java SE: Swing, Collections, Multithreading, Sockets, etc. Android (2.x+): Activities, Fragments, Location APIs, Multithreading, SQLite, etc. Technologies/Protocols: WCF, XML, XML-RPC, JSON, SOAP, SMPP, etc. Databases: SQL Server, MySql, SQLite, Oracle IDE: Visual Studio, NetBeans, Intellij Idea, Eclipse, Notepad++ OS: Windows, Linux VCS: Git, Mercurial, SVN.

$16.67 /hr
0 hours

Hendrik Tukunang

Hendrik Tukunang

Professional web, mobile and desktop developer

Indonesia - Tests: 9 - Portfolio: 6

I specialize in web development, specifically Django-python Framewrok, PHP, MySQL, Ajax, jquery including but not limited to mobile (Android specifically), java desktop etc. I also rank in the top of my field in regards to Artificial Intelligence. My specialties compliment a wide array of industries. For example, a few of my recently completed projects include; hotel and tour reservation, library information systems, supermarket information systems through to more complex infrastructure such as cloud technology systems and more.. I pride myself on going the extra mile for my clients. But don’t take my word for it, please read my cliental feedback for an unbiased opinion. Kind Regards, Hendrik Tukunang Web Developer, Entrepreneur, Business owner/operator. Client for life..

92% Job Success
$12.00 /hr
25 hours

Andres Vergara

Andres Vergara

Software Engineer + Expert Developer [English-Spanish]

Colombia - Tests: 6 - Portfolio: 14

I'm software engineer/developer. I have around 5 years of experience in the area, managing IT projects and developing a wide range and variety of applications, including: web portals, information systems and other custom solutions as scripts & templates. In this way I have worked with a variety of technologies & platforms at the back, middle and front end such as: Java, JEE, Spring, PHP, Zend Framework, CSS, HTML, JavaScript, JQuery, Ajax, Flash + Action Script SQL, PLSQL, Oracle, MySQL, Postgres SQL, SQL Server. I also have experience developing for Moodle LMS and apps for Android devices & tablets. I am seeking to build opportunities for you and your business. Thanks & regards

$15.60 /hr
1,370 hours

Kari Hirvi

Kari Hirvi

C++/Qt/Matlab/Python developer with scientific background

Finland - Tests: 5

I have years of experience with Matlab and I'm very productive with it, whether it's algorithm development, visualizing data or creating GUIs, for example. I'm also well versed in Python and I can provide a working software version quickly with rapid iterations with feedback from the client. I have also professional experience with C++, C# and Java, and I can bundle them into the project as needed. I have a PhD in physics and I've been working in different positions ranging from project manager and developer to customer service and helping sales. I can translate your problem into working code, and, if needed, refine the project requirements based on your business case. Below are few examples where you could gain tangible benefits from my experience - Matlab development of all kind, e.g., algorithms, GUIs, full applications - Data conversion and processing from one or multiple sources - Implementing algorithms based on scientific publications - Converting algorithms from another language to C++,C#,Java, Python or Matlab - Data analysis and visualization - Requirement analysis & management, e.g., reading texts and extracting measurable requirements from them with traceability to the source - Measure requirements quality by classifying them, e.g, is there an acceptance criteria, is this a system or user requirement, does the requirement have multiple requirements in it. - Creating and writing acceptance testing procedures with traceability to the project requirements I can work on both Windows and Linux platforms. Looking forward to working with you! Kari References: - LinkedIn: - My programming blog: - GitHub:

$60.00 /hr
0 hours

Ornélio Hinterholz Junior

Ornélio Hinterholz Junior

Java/Android Developer/GIS Consultant/IT Advisor

Brazil - Tests: 2

I am a Bachelor in Information Systems from Atual da Amazônia Faculty and in Mathematics from Federal University of Roraima, both in Brazil. I have a Master in Mathematics too and a minor in Systems Engineer focusing on Data Mining for Performance Prediction of Students. I have over 14 years of professional software development experience, focusing primarily on Java technologies and solutions for Electric Energy Distribution, Water Supply and Geoprocessing problems. I am comfortable developing for a wide range of target platforms, including web, mobile, desktop, systems. Much of my work has included data analysis, developing, consulting and providing solutions, in general, for Energy/Water industries, besides to work also as Teacher in Faculty. But I have flexibility to work with all range of kinds of business.

$15.00 /hr
0 hours