Find the Best Java Development Jobs
Check out a sample of the 1,051 Java Development jobs posted on Upwork
Community Manager for Loyalty Program
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are seeking a community manager to oversee our loyalty rewards program. The role involves managing a community of 1000+ members, eng…
Aviation Software Development Team
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Looking to hire a team to build and redesign aviation-related tech and software. This includes Part135 quoting, dispatch, crew app, and…
Automation Developer
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Design, maintain, and ensure the reliability of automations on n8n and Airtable, extending into custom coding (JavaScript Function node…
Backend Technical
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Backend Technical Brief For candidate review before recording a Loom walkthrough What This Platform Is This is a SaaS console. Client c…
React Native Developer for Android Fintech
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Seeking an experienced React Native developer to enhance our Android fintech app by integrating UPI/EMV QR Code. Responsibilities inclu…
Simple Contact Form REST API — Java / Spring Boot (Small Fixed-Price Project)
Fixed-price ‐ Posted 1 day agoFixed-price
Experience level
I need a Java developer to build a small, clean REST API for my business website's contact form (ArchTech Solution — a software service…
Trading Strategy Coder and Tester
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Can you code and test trading strategies fast? I have proven and profitable strategies we could build. Just had child, impossible…
Ongoing dev support
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
ongoing support for our web app both front end and back end
Senior Java Developer (GCP)
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We're hiring a Senior Backend Developer to join a long-term engagement with an international consulting firm, working on modern, event-…
Oracle PIM Technical Lead
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Role Summary Lead the technical design, build, and delivery of our Oracle Product Information Management (PIM) platform — owning soluti…
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