Just tell us about your project and in seconds we'll match you with experts. Quickly browse their profiles and proposals, then hire your favorite.
Kickoff your project in hours, not weeks. Instantly scale your team with a skilled specialist, collaborating in your own shared online workspace.
Invoicing, payment and tax forms are handled on Upwork. And with Upwork Payment Protection, you only pay for work that's rightly billed.
More details? Check out our FAQs
Upwork is the leading online workplace, home to thousands of top-rated freelancers. It’s simple to post your job and get personalized bids, or browse Upwork for amazing talent ready to work on your Java project today.
Java is a free, open-source, object-oriented programming language, plus a high-powered development platform used to build tiered applications and fast-running server applications. Because Java is a portable, “write once, run anywhere” language, Java developers are able to write code that is compatible everywhere. With components including libraries, frameworks (like Hibernate), Java APIs, the Java Runtime Environment, Java Plugins, and Java’s Virtual Machine (JVM), it’s fast and scalable, making it great for enterprise-level applications.
A highly skilled Java developer on Upwork can help build and maintain a high-traffic server-side application, or develop your Android mobile application with the Gradle build tool, an application programming software, which is based on the Java programming language. Core Java refers to a subset of developer skills within the platform—basic tools and knowledge that ensure the professional you’re engaging knows their way around the complex Java platform. Java developers handle server-side security and database architecture, using Java project management tools like Apache’s Maven. Java developers also handle software debugging, quality control, testing, and much more.
Application programming interfaces (API) have been around since the 1960s. So if they aren’t a new concept, why are they such a hot topic lately? Without APIs, the digital experiences that we expect every day as consumers wouldn’t be possible. Here’s a brief introduction to what APIs are and what they can do from Upwork’s free ebook, The API Economy.
Read MoreSeptember 26, 2016
In Android applications, background threads are excellent ways to improve user experience by offloading work from the main thread. One go-to tool is AsyncTask, which is designed to handle tasks without blocking the main thread. Here’s a look at AsyncTask and why Android developers should be using it.
Read MoreSeptember 23, 2016
Twitter is one of the most powerful social media platforms for businesses today. These five tools can help you increase engagement, build better relationships with your followers, and connect with and grow your audience—as well as your business.
Read MoreSeptember 22, 2016
