Find the best Java Development jobs
It takes just one job to develop a successful relationship that can propel your career forward.
Find work Interested in hiring?Professionals on Upwork rate clients
on average from 2M+ reviews
Trusted by
Check out a sample of the 1,600 Java Development jobs posted on Upwork
$350
Fixed-price
Expert
Experience level
Need a senior (6+ experience) developer on Java hybris ecommerce project.
Less than 30 hrs/week
Hours needed
1 to 3 months
Duration
Intermediate
Experience level
Hey there! We're on the lookout for a talented developer to help us build an automation tool for the game Teeworlds. This project is al…
$90
Fixed-price
Intermediate
Experience level
android app developer needed my app task my app is developed any ready need developer for little task for this i want long term coopera…
$100
Fixed-price
Intermediate
Experience level
**Note to Applicants:** I’ve already used Claude AI to generate most of the codebase and created a complete set of frontend and backe…
$25
Fixed-price
Intermediate
Experience level
We’re seeking an expert LLM Integration Consultant to guide us in embedding large language models into our enterprise knowledge base fo…
$100
Fixed-price
Expert
Experience level
We are seeking an experienced technology architect to guide us in selecting the best technologies and platforms for building a robust j…
$90
Fixed-price
Intermediate
Experience level
Hello i need android app developer my application task i have 3 apps task and all apps are ready, so that am looking an app develope…
Less than 30 hrs/week
Hours needed
1 to 3 months
Duration
Intermediate
Experience level
I am seeking a skilled developer to create two-week drip-release fillable PDF modules for our platform, UnitiveMind. The ideal candidat…
$25
Fixed-price
Intermediate
Experience level
We are looking for an experienced API developer to consult on building a scalable and secure API for our document processing engine. Th…
Less than 30 hrs/week
Hours needed
3 to 6 months
Duration
Entry
Experience level
We are seeking individuals with basic IT skills to assist in checking our partners' computers for malfunctions. We will provide all nec…
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.
Your next job starts right here
Set up a free profile to showcase your skills, experience and desired pay rate to clients. You choose the payment method that's best for you to easily get paid for your work.
Find workGives you security and peace of mind