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Software Engineer Sr

Lockheed Martin

King of Prussia, PA 2026-02-18

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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.Lockheed Martin, a leader in advancing secure communications and cutting-edge defense technology, is seeking a Software Engineer to join our team in King of Prussia, PA. You will focus on developing and automating test solutions to ensure robust, secure, and resilient software products that meet high-performance and security standards.As a…

Job description

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.Lockheed Martin, a leader in advancing secure communications and cutting-edge defense technology, is seeking a Software Engineer to join our team in King of Prussia, PA. You will focus on developing and automating test solutions to ensure robust, secure, and resilient software products that meet high-performance and security standards.As a Software Engineer You Will▪️ Design, develop, and test software solutions that meet customer requirements, particularly for secure military communications.▪️ Develop and execute automated test cases using tools like Cypress and Playwright (for frontend testing) and Postman (for API validation).▪️ Implement high-quality, efficient, and maintainable code, ensuring comprehensive test coverage across web applications and APIs.▪️ Collaborate with cross-functional teams, contributing to requirements creation, test case development, and automated testing efforts.As part of an Agile Developm...

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