ZipRecruiter

Log In

1

Java Developer Volunteer Jobs (NOW HIRING)

System One Holdings, LLC

Java Mainframe Developer

Vienna, VA · On-site

$57.50 - $73.25/hr

Java Developer Location: Remote Type: Contract Responsibilities * Design, develop, and enhance ... voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity ...

Charles Schwab

Senior Java Developer

Southlake, TX

$54 - $68.75/hr

We are looking for a Senior Software Engineer who is passionate about technology and the ... Paid time for vacation, volunteering, and a 4-week sabbatical after 5 years of service * Paid ...

System One

Sr. Java Full Stack Developer

Farmers Branch, TX

$50.50 - $65/hr

Job Title: Sr. Java Full Stack Developer Location: Dallas, Texas Type: Fulltime Compensation: Not ... voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity ...

Eliassen Group

Backend Java Engineer

Merrimack, NH · On-site +1

$58 - $68/hr

Hybrid Onsite Every Other Week in Merrimack, NH Our client seeks a seasoned Backend Java Engineer ... voluntary benefits including life and disability insurance, 401(k) with match, and sick time if ...

Eliassen Group

Backend Java Engineer

Merrimack, NH · Hybrid

$58 - $68/hr

Hybrid Onsite Every Other Week in Merrimack, NH Our client seeks a seasoned Backend Java Engineer ... voluntary benefits including life and disability insurance, 401(k) with match, and sick time if ...

Synergy BIS

$51 - $66/hr

... Engineering ... Synergy offers its employees a generous portfolio of core and voluntary benefits including: group ...

FreshDirect

Sr. Java Backend Developer

Woodbridge, NJ

$130K - $155K/yr

What You'll Do As a Senior Backend Developer (Java) , you'll help design, develop, and scale ... Medical, Dental, Vision, Life Insurance , and voluntary Disability coverage. * 401(k) with employer ...

FreshDirect

Sr. Java Backend Developer

Woodbridge, NJ

$130K - $155K/yr

What You'll Do As a Senior Backend Developer (Java) , you'll help design, develop, and scale ... Medical, Dental, Vision, Life Insurance, and voluntary Disability coverage. * 401(k) with employer ...

Onyx Point, Inc.

Agile Developer 3 - 8813-OL

Hanover, MD · On-site

$78K - $250K/yr

The Microservices Developer will be responsible for: • Writing java spring boot based micro ... Basic Life/AD&D, Voluntary Life/AD&D, Short and Long-Term Disability, Accident, Critical Illness ...

Onyx Point, Inc.

Agile Developer 3 - 8813-OL

Hanover, MD · On-site +1

$78K - $250K/yr

Writing java spring boot based micro service applications utilizing AWS native technologies ... Basic Life/AD&D, Voluntary Life/AD&D, Short and Long-Term Disability, Accident, Critical Illness ...

next page

Showing results 1-20

People also search for

All JobsJava Developer Volunteer Jobs

Java Developer Volunteer information

See salary details

$15

$56

$77

How much do java developer volunteer jobs pay per hour?

As of May 29, 2026, the average hourly pay for java developer volunteer in the United States is $56.70, according to ZipRecruiter salary data. Most workers in this role earn between $49.04 and $63.46 per hour, depending on experience, location, and employer.

What is a Java Developer Volunteer job?

A Java Developer Volunteer role involves contributing to software development projects without financial compensation. Volunteers typically assist in coding, debugging, testing, and maintaining Java-based applications for nonprofits, open-source projects, or startups. This role helps developers gain experience, build portfolios, and support meaningful initiatives while collaborating with teams.

What are the key skills and qualifications needed to thrive in the Java Developer Volunteer position, and why are they important?

To excel as a Java Developer Volunteer, you should have a solid grasp of Java programming, object-oriented design, and version control systems, often demonstrated through coursework, certifications, or hands-on project experience. Familiarity with tools like Eclipse or IntelliJ IDEA, build systems (Maven or Gradle), and collaborative platforms such as GitHub is commonly expected. Strong communication, teamwork, and a willingness to learn set exceptional volunteers apart. These skills and qualities ensure you can contribute effectively to projects, adapt to dynamic team needs, and make the most meaningful impact in volunteer settings.

What types of projects or tasks can I expect to work on as a Java Developer Volunteer?

As a Java Developer Volunteer, you might work on a range of projects, such as developing new software features, fixing bugs, writing unit tests, or helping maintain existing Java applications for nonprofits or community organizations. You could also assist in documentation, code reviews, or collaborating on open-source initiatives, depending on the organization's needs. These roles often provide exposure to agile development practices and teamwork with other engineers, designers, and project managers. Volunteering in this capacity not only helps worthwhile causes but also allows you to expand your portfolio and gain practical experience with real-world applications.
More about Java Developer Volunteer jobs
What cities are hiring for Java Developer Volunteer jobs? Cities with the most Java Developer Volunteer job openings:
What are the most commonly searched types of Java Developer jobs? The most popular types of Java Developer jobs are:
What states have the most Java Developer Volunteer jobs? States with the most job openings for Java Developer Volunteer jobs include:
What job categories do people searching Java Developer Volunteer jobs look for? The top searched job categories for Java Developer Volunteer jobs are:
Java Developer Volunteer jobs near you
Java Mainframe Developer

Java Mainframe Developer

System One Holdings, LLC

Vienna, VA • On-site

$57.50 - $73.25/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 24 days ago

Job description

Job Title: Java Developer
Location: Remote
Type: Contract
Responsibilities
  • Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distributed applications with the organization's Core Banking platform.
  • Translate business and platform requirements into secure, scalable, and reliable solutions throughout the full software development lifecycle.
  • Operate with minimal supervision while exercising strong technical judgment.
  • Collaborate with Core Banking, testing, middleware, and platform teams to manage dependencies, mitigate risks, and meet aggressive delivery timelines.
  • Design, develop, and optimize high-quality software applications using advanced programming languages and frameworks that meet business needs.
  • Gather and analyze requirements, translate into technical specifications, propose solutions, and ensure timely task completion.
  • Write clean, scalable, and maintainable code adhering to best practices and organizational standards.
  • Implement data structures and algorithms efficiently to optimize performance and user experience.
  • Identify, troubleshoot, and resolve application errors.
  • Conduct code reviews, provide feedback, and learn from colleagues to maintain high-quality codebase.
  • Lead small efforts, fostering relationships with stakeholders and team members.
  • Contribute to development policies, standards, and procedures for applications and software.
  • Continuously learn and improve through collaboration and feedback.
Requirements
  • Bachelor's degree in Computer Science, Information Systems, or a related field, or equivalent experience.
  • 0 or more years of experience in application or software development.
  • Proficiency in software development principles, methodologies (including Agile), pipelines, and version control systems (Git and GitHub).
  • Expertise in Java, XML, Open API, Maven, and ANT, with knowledge of modern frameworks and libraries.
  • Strong understanding of web technologies and capacity to design scalable solutions.
  • Excellent problem-solving, analytical, and troubleshooting skills.
  • Effective written and verbal communication skills for technical and non-technical stakeholders.
  • Experience with incident tracking, project management, and change control tools.
  • Understanding of data structures and algorithms for application performance and scalability.
  • Experience developing web services, microservices, REST and SOAP APIs, and implementing REST principles.
  • Ability to write and maintain unit and integration tests and troubleshoot software defects.
  • Familiarity with CI/CD pipelines and web APIs like Apache HTTP Client, JAX-WS, JAX-RS.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
#M-
#LI-
Ref: #851-Rockville-S1

Apply