Find the Best Java Development Jobs
Check out a sample of the 1,060 Java Development jobs posted on Upwork
Minecraft Developer
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We're nearing the launch of a Minecraft project and are seeking a developer with experience in Lifesteal to add a fresh perspective to…
Commission-only Recruitment Delivery Team - Read in Full
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are looking for an exceptional commission-only recruitment delivery team to support high-volume recruitment across the UK, USA and A…
Software Engineers - Shanghai
Fixed-price ‐ Posted 1 day agoFixed-price
Experience level
Qty 2 Software Engineers for 8-10 months (extended from there). Need to be local to Shanghai. Java POS development experience Any re…
Full Stack Developer for Library Management System
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are seeking an experienced Full Stack Developer to build a Library Management System for EaseMySeat.com. The ideal candidate will ha…
VS Code Extension Developer Needed
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are seeking an experienced developer to create a custom extension for Visual Studio Code. The ideal candidate will have a strong und…
Senior Java Application Support Engineer
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are seeking a Senior Java Application Support Engineer to assist our lead IT resource in maintaining, supporting, and enhancing our…
Trading Automation Scout Needed
Fixed-price ‐ Renewed 1 day agoFixed-price
Experience level
I am looking for someone who understands the MQL5 / MT4 / MT5 / EA / trade-copier / signal-provider / trading-automation world from the…
Microsoft Fabric Developer (Implementation & DevOps Focus)
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Hi, I am looking for an experienced Microsoft Fabric juniror coder to help me deepen my practical knowledge of Microsoft Fabric through…
Software Developer and Game Development
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Looking for a qualified candidate that will be assisting members of a team complete a new TV ecosystem using Blockchain technology and…
API Key Installation and Testing
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
I need a freelancer to install and test API keys on my web page. The task involves ensuring the API keys are properly installed and fun…
can earn $20–$40/hr.
$20$40
Median hourly rates (USD)
How to Become a Freelance Java Developer
Java is considered one of the best programming languages for enterprise software. What’s more,Java is one of the native programming languages supported by Android, so many mobile app developers use Java.
What does a Java developer do?
Java developers are responsible for architecting, designing, and developing software using Java, and many popular software libraries and frameworks are written in Java, such as Spring and Hibernate.
Java programmers and developers typically work as part of a team to design and develop software solutions for client requests. Java is famous as an embedded systems programming language, so many devices are powered using software written in Java.
Some other roles and responsibilities include:
- Designing, implementing, and maintaining Java applications
- Delivering applications with high availability and performance
- Ensuring designs comply with specifications
What skills do I need to become a Java developer?
To become a Java developer, experience is more important than a college degree, but a bachelor’s degree in computer science, software engineering, and another related field is often recommended.
Java developers must understand programming concepts such as object-oriented design and common frameworks and software libraries written in Java. Java developers will also be familiar with typical programming tools such as IDEs and version control software.
Common skills a Java developer should possess include:
- In-depth knowledge of OO design and programming
- Excellent analytical, problem-solving, and troubleshooting skills
- Knowledge of relational databases (Oracle, SQL Server, DB2)
- Experience with back-end application programming interfaces (APIs)
What are the job responsibilities of a Java developer?
A Java developer will build and maintain software applications to develop web apps, mobile apps, embedded system apps, server-side software, and more.
Typically, a Java developer will work as part of a team, using IDEs to write code and version control software to commit code as part of a team effort. A Java developer will be expected to:
- Plan, design, and code software solutions for new and existing projects
- Write efficient and reusable code
- Develop software using industry best practices
- Work with software engineers, product managers, software developers, web developers, and clients to ensure the software is designed well and meets user needs
Eager to learn more about Java development on Upwork? Check out these additional resources:
Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this section. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyse and determine the tools or services that would best fit their specific needs and situation.
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