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Java Developer Volunteer Jobs in Fairfax, VA (NOW HIRING)

Amivero LLC

Java Developers (Mid-Senior)

Washington, DC

$64.75 - $82.75/hr

Experience with application integration and delivery with a DevOps pipeline * Object oriented ... Gather with us at Amivero's family events, give back with our volunteer opportunities, and be ...

Amivero LLC

Java Developers (Mid-Senior)

Washington, DC · On-site

$64.75 - $82.75/hr

Experience with application integration and delivery with a DevOps pipeline * Object oriented ... Gather with us at Amivero's family events, give back with our volunteer opportunities, and be ...

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All JobsJava Developer Volunteer JobsJava Developer Volunteer Jobs in Fairfax, VA

Java Developer Volunteer information

See Fairfax, VA salary details

$15

$57

$79

How much do java developer volunteer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for java developer volunteer in Fairfax, VA is $57.95, according to ZipRecruiter salary data. Most workers in this role earn between $50.14 and $64.86 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 as a Java Developer Volunteer?

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?

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 Fairfax, VA? The most popular types of Java Developer jobs in Fairfax, VA are:
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What cities near Fairfax, VA are hiring for Java Developer Volunteer jobs? Cities near Fairfax, VA with the most Java Developer Volunteer job openings:
Java Developer Volunteer jobs near you
Infographic showing various Java Developer Volunteer job openings in Fairfax, VA as of August 2026, with employment types broken down into 96% Full Time, and 4% Contract. Highlights an 79% In-person, 17% Hybrid, and 4% Remote job distribution, with an average salary of $120,545 per year, or $58 per hour.

Sr Software Engineer - Java & APIs (Night Shift)

System One

Reston, VA • On-site

$79/hr

Other

Medical, Dental, Vision, Life, Retirement

Re-posted 15 days ago

Job description

Job Title: Java Developer - Night Shift
Location: Reston, VA
Type: Contract to Hire 
Compensation: $79/HR
Work Model: Hybrid – onsite and remote
 

Overview

Important Requirements (Please Read Before Applying)
  • Night shift role (final schedule assigned after onboarding)
  • Rotating weekend coverage required
  • Onsite interview required
  • 2 to 3 weeks onsite training required

This is a hands on engineering plus production support role supporting high visibility, mission critical systems.

About the Role

We are looking for a Senior Software Engineer with strong Java, API, and production support experience to build, maintain, and support enterprise scale applications used by tens of thousands of users.

This role is ideal for engineers who:

  • Thrive in high impact, fast response environments
  • Enjoy solving complex production issues
  • Can balance development plus operational support
  • Are comfortable working independently during overnight hours
What You Will Do
  • Design, build, and enhance enterprise Java applications and APIs
  • Troubleshoot and resolve critical production issues in real time
  • Develop and execute unit tests and automated test cases
  • Support and improve system performance, reliability, and scalability
  • Work across teams to deliver high availability systems at scale
  • Contribute to architecture decisions and system design
  • Maintain and improve CI CD pipelines, code quality, and deployment processes
  • Mentor junior engineers and contribute to team best practices
What You Bring (Required)
  • 5 or more years of software engineering experience
  • Strong Java development experience (Java JEE, Spring ecosystem)
  • Experience building and supporting REST APIs or web services
  • Production support experience (this is critical)
  • Experience with:
    • Spring Boot, MVC, Integration
    • Hibernate or similar ORM frameworks
    • SQL and database design
    • CI CD tools (Jenkins, Maven, etc.)
  • Front end basics: HTML, JavaScript, CSS
  • Strong troubleshooting and problem solving skills
  • Ability to work independently during overnight shifts
Nice to Have
  • API Management (APIM) experience
  • Experience with Angular or React
  • Knowledge of OAuth2, SSO, or security frameworks
  • Experience with cloud platforms (AWS or Azure)
  • Exposure to Big Data technologies
What Sets You Apart
  • You write clean, efficient, production ready code
  • You stay calm under pressure and can resolve critical issues quickly
  • You are comfortable owning systems end to end
  • You proactively identify improvements and drive them forward
Reality of the Role (No Surprises)

This is not a typical 9 to 5 development role.
You will be:

  • Working overnight shifts
  • Supporting live production systems
  • Handling high priority issues in real time

In return, you will have:

  • High ownership and visibility
  • Opportunity to work on large scale, mission critical systems
  • A team that values strong, reliable engineers
  • An opportunity to convert to a full-time employee of the client, based on eligibility and performance.


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.

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#LI-AJ1


Ref: #851-Rockville-S1

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