1

Java Developer Volunteer Jobs in Philadelphia, PA

Strong experience with C++ or Java in Linux environments * Experience across design, development ... Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term ...

New

Partner with Product, Architecture, QA, DevOps, and Security teams to align priorities, resolve ... Java, React, Next.js, Python, REST APIs, microservices, and cloud platforms with CI/CD pipelines ...

CFD Engineer Specialist

Camden, NJ · On-site

$95K - $115K/yr

Programming skills in Python, C++, or Java for automation and post-processing * Excellent ... Employee support and voluntary benefits, including an Employee Assistance Program and optional ...

Deep technical hands-on experience with Java and Oracle * Demonstrated experience leading global ... volunteer time, that can support you and your family through moments that matter. BNY is an Equal ...

next page

Showing results 1-20

Java Developer Volunteer information

See Philadelphia, PA salary details

$15

$57

$78

How much do java developer volunteer jobs pay per hour?

As of Jun 21, 2026, the average hourly pay for java developer volunteer in Philadelphia, PA is $57.21, according to ZipRecruiter salary data. Most workers in this role earn between $49.47 and $64.04 per hour, depending on experience, location, and employer.

Is Java outdated in 2026?

Java remains a widely used programming language for Java Developer roles in 2026, with ongoing updates and a large ecosystem supporting enterprise applications, Android development, and backend systems. Its stability, performance, and extensive libraries ensure its continued relevance in the software industry.

Can volunteer work get you a job?

Volunteer work as a Java Developer can help build relevant skills, demonstrate commitment, and expand your professional network, which may improve your chances of securing a paid position. However, it does not guarantee a job and should be complemented with formal job applications and interviews.

Are Java programmers still in demand?

Java developers remain in high demand due to the language's widespread use in enterprise applications, Android development, and backend systems. Skills in frameworks like Spring and knowledge of cloud environments can enhance job prospects in this field.

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.

How to hire Java developers quickly?

To hire Java developers quickly, define clear job requirements and use targeted job postings on popular platforms. Screen candidates efficiently by assessing their technical skills through coding tests or technical interviews, and consider leveraging developer communities or staffing agencies to expedite the process.

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 Philadelphia, PA? The most popular types of Java Developer jobs in Philadelphia, PA are:
What are popular job titles related to Java Developer Volunteer jobs in Philadelphia, PA? For Java Developer Volunteer jobs in Philadelphia, PA, the most frequently searched job titles are:
Ground Software Engineer

Ground Software Engineer

Lockheed Martin

King Of Prussia, PA • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 14 days ago


Lockheed Martin rating

8.2

Company rating: 8.2 out of 10

Based on 384 frontline employees who took The Breakroom Quiz

31st of 60 rated aerospace companies


Job description

Job Description
WHO WE ARE
Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering.
LM SPACE: WHAT WE'RE DOING
Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future.
At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve.
THE WORK
Lockheed Martin is seeking a talented Level 2 Ground Software Engineer with an active Final Top Secret security clearance to work from our King of Prussia, PA location.
We are looking for software engineers to craft and build innovative solutions for our customers. You will be part of an Agile team that utilizes state of the art commercial standard methodologies such as DevSecOps (automated testing, continuous integration, automated deployment, etc.) and modern development tools.
You will participate in progressing system capabilities from early design through site acceptance focused on software reuse, COTS/FOSS integrations, and innovative, affordable best practices. As a member of a hard-working team that are passionate about their trade, focused on mission and system quality, and supportive of timely delivery of features and capabilities. Be able to demonstrate effective communication skills and a desire to have fun with your work.
As Ground Software Engineer:
• You will design, implement, test, and maintain object-oriented ground system software applications using Java, C#, Rust, Angular, Python
• You will support modernization efforts geared toward achieving greater efficiency, security, automation and scalability
• You will collaborate with an enthusiastic team of software, systems, and test engineers using the Agile Development methodology
Selected candidates will be required to possess Active Top Secret with adjudicated SCI Eligibility (i.e. TS/SCI) prior to starting employment.
This is an EMERGING PROFESSIONAL (level 2) CAREER ROLE where candidates typically require 1+ years of professional experience and a BS degree.
If you think this describes you and you are looking for an opportunity to grow and challenge yourself then we would love for you to apply!
WHY JOIN US
Opportunity for Impact: Join a team that is at the forefront of innovation in the aerospace and defense industry and make a significant impact on the success of our organization.
Professional Development: Take advantage of unparalleled opportunities for growth and advancement within Lockheed Martin, with access to world-class training and development programs.
Collaborative Culture: Work alongside some of the brightest minds in the industry who share your passion for excellence and who are committed to supporting each other's success.
Competitive Benefits: Lockheed Martin employees play an active role in strengthening the quality of life where we live and work by volunteering more than 850,000 hours annually. Here are some of the benefits you can enjoy:
• Medical
• Dental
• 401k
• Paid time off
• Work/life balance
• Career development
• Mentorship opportunities
• Rewards & recognition
We care about our employees and offer a generous benefits package: 401K, PTO, and work/life balance and more.
Basic Qualifications
• Software Development, Software Engineering background, with a track record of successful project delivery
• Experience in Scaled Agile development methodologies, with excellent communication skills for effective collaboration and teamwork across Agile Development Teams.
• Active TS Clearance required for consideration with the ability to obtain an SCI.
Desired skills
• Meaningful experience designing and implementing software solutions using the following technologies: Java, C#, Rust, Python, Apache Kafka, Apache ActiveMQ, ELK Stack/OpenSearch, PostgreSQL, Redis, Helm, Kubernetes
• Cloud/containerization experience with a good understanding of distributed systems and designing for scalability
• Experience developing ground subsystems
• Experience developing microservices
• Proficient in using Git for version control and collaboration
• Working knowledge of DevSecOps Pipelines
• Excellent understanding of Agile Methodologies as they relate to the Scaled Agile Framework
• Experience with Agile, automated test, CI/CD, and regression testing
• Committed with strong problem-solving skills applied to software engineering solutions
• Previous experience delivering highly reliable Communications / Ground subsystems
EEO
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
*
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.
With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.
If this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.
Other Important Information
By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Work Schedule Information
Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
National Pay Statement
Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $76,500 - $134,895. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
(Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.
This position is incentive plan eligible.
Premium Pay Statement
Pay Rate: The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $88,000 - $152,490. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
This position is incentive plan eligible.

What Lockheed Martin employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Lockheed Martin logo

About Lockheed Martin

Sourced by ZipRecruiter

As a global security and aerospace company, the majority of Lockheed Martin's business is with the U.S. Department of Defense and U.S. federal government agencies.The remaining portion of Lockheed Martin's business is comprised of international government and commercial sales of products, services and platforms.

Industry

Manufacturing

Company size

10,000+ Employees

Headquarters location

Bethesda, MD, US

Year founded

1912