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Open Source Software Developer Jobs in Pennsylvania

Senior PHP Developer Company: Vantage Labs Vantage Labs is a world leader and innovator in the ... Knowledge of Open Source libraries, tools and frameworks, e.g. for logging, testing, and building.

Bachelor's degree in computer science, Software Engineering, Information Systems, or a related ... Familiarity with Git, source control concepts, debugging, and peer review. * Strong problem-solving ...

Showing results 41-60

Open Source Software Developer information

See Pennsylvania salary details

$48.1K

$112.1K

$166.4K

How much do open source software developer jobs pay per year?

As of Sep 8, 2026, the average yearly pay for open source software developer in Pennsylvania is $112,114.00, according to ZipRecruiter salary data. Most workers in this role earn between $90,200.00 and $130,300.00 per year, depending on experience, location, and employer.

What is an open source software developer?

Open Source Software Developers are programmers who create, maintain, or contribute to software projects whose source code is made freely available for anyone to use, modify, and distribute. They often collaborate with a global community of developers and may work on a voluntary basis or be employed by organizations that support open source initiatives. Their work involves writing code, fixing bugs, reviewing contributions, and helping manage project documentation. Open source developers play a key role in advancing technology by making software accessible and fostering innovation through community collaboration.

How do open source software developers typically collaborate with contributors from around the world?

Open Source Software Developers often work with a global community of contributors using online collaboration tools such as GitHub, mailing lists, and chat platforms like Slack or Discord. Communication is primarily asynchronous, requiring clear documentation and code review practices to ensure smooth project progress. Developers regularly participate in discussions, review pull requests, and help onboard new contributors, making strong written communication skills essential. This collaborative environment fosters learning and innovation, but also requires flexibility and patience to manage different time zones and cultural perspectives.

What are the key skills and qualifications needed to thrive as an open source software developer, and why are they important?

To thrive as an Open Source Software Developer, you need strong programming skills, knowledge of version control systems like Git, and familiarity with open source licensing, typically supported by a relevant degree or coding experience. Proficiency with collaborative development platforms such as GitHub or GitLab and understanding of continuous integration tools are commonly required. Excellent communication, self-motivation, and the ability to work effectively in distributed teams set outstanding contributors apart. These skills are crucial for efficiently building, maintaining, and contributing to widely used open source projects in a collaborative, global environment.

What is the difference between Open Source Software Developer vs Software Engineer?

AspectOpen Source Software DeveloperSoftware Engineer
CredentialsTypically requires programming skills, familiarity with open source licenses, and sometimes certifications like Linux Foundation certificationsRequires a degree in computer science or related field; certifications like Microsoft Certified or AWS certifications are common
Work EnvironmentOften collaborates in open source communities, contributes to public repositories, and works remotelyWorks in corporate or enterprise settings, often in teams within organizations
Industry UsageUsed across tech, non-profit, and open source communities; focuses on public projectsEmployed in various industries including tech, finance, healthcare, and more for product development

While both roles involve software development, Open Source Software Developers focus on collaborative, community-driven projects often in open environments, whereas Software Engineers typically work within organizations on proprietary or internal systems. The roles overlap in skills but differ in scope and work setting.

What cities in Pennsylvania are hiring for Open Source Software Developer jobs?

Cities in Pennsylvania with the most Open Source Software Developer job openings:

Software Engineer Sr - E3

King Of Prussia, PA • On-site

Lockheed Martin Corporation
Manufacturing • 10K+ employees

$110K - $204K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 19 days ago


Lockheed Martin rating

8.2

Company rating: 8.2 out of 10

Based on 398 frontline employees who took The Breakroom Quiz

38th of 72 rated aerospace companies


Job description

Standard Job Description 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.

We're creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security vision. We're erasing boundaries and forming partnerships across industries and around the world. We're advancing spacecraft and the workforce to fuel the next generation.

And we're reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Generating and simulating operational level plans to explore the art of the possible, how we could defend the ultimate high ground in a future space war Dynamically optimizing both terrestrial and space-based sensors to provide comprehensive space domain awareness Strategically optimizing the placement and maneuvering of constellations of satellites to satisfy multiple, evolving priorities Our team leverages industry standard open-source software solutions such as GitLab, Kubernetes, Docker, and Rancher.

Our automation-first and "everything as code" mindset allows our software engineers to focus their time and efforts on what is most important - building cutting edge functionality for our end users. As an engineer on an Agile Scrum Team, you will have the opportunity to rapidly develop and deploy solutions for a complex space system following core engineering principles, ultimately enabling the delivery of fully functioning mission capability to end users securely and continuously. The information below reflects the standard job description for this position: Plans, conducts, and coordinates software development activities.

Designs, develops, documents, tests, and debugs software that contains logical and mathematical solutions to business/mission problems or questions in computer language for solutions by means of data processing equipment. Applies the appropriate standards, processes, procedures, and tools throughout the development life cycle. Applies knowledge of computer hardware and software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered from system users to develop software.

Corrects program errors, prepares operating instructions, compiles documentation of program development, and analyzes system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls. Ensures software standards are met. Basic Qualifications Software development experience with object-oriented programming languages such as Java and JavaScript Experience developing software with CI/CD build tools (GitLab, Jenkins) Experience working on large-scale software projects with multiple teams and stakeholders Familiarity with software test best practices, including unit test, integration test, and end-to-end test US Citizenship Required: No clearance required to start but must be able to obtain and maintain a TS/SCI security clearance Desired Skills Experience with SpringBoot or Quarkus for backend Java development Experience with LIT for JS front-end Experience with Node.js/Express for hosting UIs Experience with Python Experience with Helm charts for IaC Experience with software version control tools, such as GIT Ability to work effectively in a fast-paced and rapidly changing environment Strong time management skills that enable on-time project delivery Familiarity with the Space Domain #LMSpaceSoftwareEng #SpaceSecurity #SpaceNSS Pay Information Full-Time Salary Range: $110300.00 - $204900.00 At Lockheed Martin, we know mission success starts with taking care of our people

Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow-both professionally and personally. The salary range for this position is as listed on the requisition. Please note that the salary information listed 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(work location) and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability. Annual short-term and/or long-term incentive compensation programs may be offered depending on the position

Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics. For (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.


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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