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Java Developer Volunteer Jobs in Virginia (NOW HIRING)

CATHEXIS

AI/ML Software Developer (req-246)

Tysons, VA · On-site

$123K - $149K/yr

Experience with JavaScript, Java, or other object-oriented programming language(s). * Hands-on ... Life Insurance (Basic, Voluntary & AD&D) * Paid Time Off * 11 Federal Holidays * Parental Leave

CATHEXIS

AI/ML Software Developer (req-246)

Mclean, VA · On-site

$123K - $149K/yr

Experience with JavaScript, Java, or other object-oriented programming language(s). * Hands-on ... Life Insurance (Basic, Voluntary & AD&D) * Paid Time Off * 11 Federal Holidays * Parental Leave

CATHEXIS

AI/ML Software Developer (req-257)

Mclean, VA · On-site

$123K - $149K/yr

Experience with JavaScript, Java, or other object-oriented programming language(s). * Hands-on ... Life Insurance (Basic, Voluntary & AD&D) * Paid Time Off * 11 Federal Holidays * Parental Leave

CATHEXIS

AI/ML Software Developer (req-262)

Tysons, VA · On-site

$123K - $149K/yr

Experience with JavaScript, Java, or other object-oriented programming language(s). * Hands-on ... Life Insurance (Basic, Voluntary & AD&D) * Paid Time Off * 11 Federal Holidays * Parental Leave

Naval Sea Systems Command

SOFTWARE DEVELOPER

Dahlgren, VA · On-site +1

$101K - $156K/yr

Skill in writing code in various coding languages (Java, C++ etc.) * Advanced knowledge of ... Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable ...

Metron

Autonomous Systems Software Engineer

Reston, VA · On-site

$180K - $213K/yr

Programming experience in C++ and/or Java programming languages * Experience using one or more ... Additional Voluntary Benefits * Paid Time Off * 9 Observed Holidays and 2 Floating Holidays * Paid ...

MAXISIQ, Inc.

Software Developer - Senior

Lorton, VA · On-site

$55 - $72.75/hr

Advanced knowledge of programming languages including Python, JavaScript, HTML5, C++, Java, SQL ... Paid time off for volunteering missions * Health membership reimbursement to keep you in top form

MAXISIQ, Inc.

Software Developer - Senior

Lorton, VA · Hybrid

$55 - $72.75/hr

Advanced knowledge of programming languages including Python, JavaScript, HTML5, C++, Java, SQL ... Paid time off for volunteering missions * Health membership reimbursement to keep you in top form

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All JobsJava Developer Volunteer JobsJava Developer Volunteer Jobs in Virginia

Java Developer Volunteer information

See Virginia salary details

$15

$56

$76

How much do java developer volunteer jobs pay per hour?

As of Jul 9, 2026, the average hourly pay for java developer volunteer in Virginia is $56.21, according to ZipRecruiter salary data. Most workers in this role earn between $48.61 and $62.93 per hour, depending on experience, location, and employer.

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.

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 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 most commonly searched types of Java Developer jobs in Virginia? The most popular types of Java Developer jobs in Virginia are:
What are popular job titles related to Java Developer Volunteer jobs in Virginia? For Java Developer Volunteer jobs in Virginia, the most frequently searched job titles are:
What job categories do people searching Java Developer Volunteer jobs in Virginia look for? The top searched job categories for Java Developer Volunteer jobs in Virginia are:
What cities in Virginia are hiring for Java Developer Volunteer jobs? Cities in Virginia with the most Java Developer Volunteer job openings:
Java Developer Volunteer jobs near you
Infographic showing various Java Developer Volunteer job openings in Virginia as of July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $116,920 per year, or $56.2 per hour.
AI/ML Software Developer (req-246)

AI/ML Software Developer (req-246)

CATHEXIS

Tysons, VA • On-site

$123K - $149K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 14 days ago

Job description

Team CATHEXIS elevates the government contracting experience through rapid response, deep skill, and thoughtful problem-solving and communication. Our core capabilities are our top-tier program and project management, data analytics, and audit services, the backbone of which is our integrated approach to operational excellence.
You worked hard to get to where you are. You strive to make every day better than the day before. So do we. Team CATHEXIS operates with an all-in mindset. We are working together to create a company that supports our shared values and individual goals. Our values are centered around leading with integrity, owning the outcome, growing together, and moving with purpose in everything we do for our employees, customers, partners, and communities. We believe success is best when we listen and lead with empathy; model high standards of ethics to provide a rewarding candidate experience; work hard, have fun, and appreciate the strengths we all bring to the team; and empower our employees to create innovative and trusted results.
We are looking for a dynamic AI/ML Software Developer to join our team. The AI/ML Software Developer will work alongside a team of highly skilled engineers in the development of AI applications. A motivated and qualified candidate will not only have hands-on development experience in (JavaScript, Python or Java) but also a willingness to collaborate with teams to solve problems. We're seeking curious and creative technical staff who are excited about delivering quality solutions.
Responsibilities
The responsibilities include, but are not limited to:
  • Collaborate with other developers, staff and leadership to design solutions that solve customer problems.
  • Design, develop, and maintain technical solutions.
  • Build and improve tools for users to understand and analyze large-scale data.
  • Perform debugging, troubleshooting, modifications and testing of software and solutions.
  • Develop documentation, and collaborate in the development of technical procedures and user support guides.

Requirements
  • An active Secret or above clearance is required.
  • Bachelor's degree in computer science or related field.
  • 3 to 5 years of relevant experience.
  • Experience with JavaScript, Java, or other object-oriented programming language(s).
  • Hands-on experience and understanding of object-oriented programming, data structures, algorithms, profiling & optimization.
  • Passion for developing team-oriented solutions to complex engineering problems.
  • Proficient in leveraging modern LLM tools to accelerate development workflows and enhance code quality.

Benefits
CATHEXIS offers competitive compensation packages to all eligible employees. Our goal is to provide a compensation package that reflects the value you bring to our team, is competitive with national average market rates, and promotes your financial security and personal well-being. The annual salary range for this role is $123,100.00 - $149,800.00 Please note that the salary information provided is a general guideline. CATHEXIS considers various factors in its final offer, including location, qualifications, experience, and skills.
  • Performance Bonuses
  • Medical Insurance
  • Dental Insurance
  • Vision Insurance
  • 401(k) Plan (Traditional and ROTH)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off
  • 11 Federal Holidays
  • Parental Leave
  • Commute Benefits
  • Short Term & Long Term Disability
  • Training & Development
  • Wellness Program
  • Community Outreach Initiatives

CATHEXIS is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability EEO IS THE LAW. If you are an individual with a disability and would like to request a reasonable accommodation as part of the employment selection process, please contact the Recruiting Department RecruitingTeam@cathexisfederal.com.

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