Find the Best Java Development Jobs
Check out a sample of the 962 Java Development jobs posted on Upwork
Backend/QA Development
Fixed-price ‐ Posted 1 day agoFixed-price
Experience level
QA / Backend Support Engineer (QAB-1) - Fixed Sprint Project Project: SwarmPM Phase 1 Position ID: QAB-1 Engagement Type: Fixed-Price S…
Google Apps Script Developer for Warehouse App
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are seeking an experienced Google Apps Script and Google Sheets developer to take over, stabilize, and complete an existing barcode-…
Senior Fullstack Frontend SDK Engineer
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Join our team as a Senior Fullstack Frontend SDK Engineer to develop and maintain our software development kit. You'll work on both fro…
Web, Mobile & Software Developer
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are seeking a skilled developer to enhance our web, mobile, and software applications. The ideal candidate will have experience in A…
API Technical Writer
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We're looking for an API Technical Writer to create and maintain developer-facing documentation for our API products in a healthcare/Sa…
ICP Scoring System Development
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
I am looking for an experienced professional with a strong understanding of building web applications, integrating APIs, and building a…
Fullstack Developer for AI SaaS Platform
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are seeking a skilled full-stack developer to join our team for an AI SaaS platform project. The role involves developing both web a…
Fractional CTO (Client-Facing / Senior Software Engineer)
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Company: Alpus Consulting LLC Location: United States (Fully Remote) Compensation: USD $3k-7k/month, approx. part time role depending o…
Software Deployment Owner — Take Our Platform Live, Then manage It
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We built a real internal software platform using AI. It works. Right now it's sitting in a sandbox doing nothing, because nobody is dri…
Minecraft Developer for Plugins and Server Setup
Fixed-price ‐ Posted 1 day agoFixed-price
Experience level
We are looking for a Minecraft developer to setup a new Minecraft server and develop plugins for it. Server setup GUI menus Economy It…
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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