Principal Java Software Engineer (on-site)

Principal Java Software Engineer – Satellite Ground Systems The Principal Java Software Engineer will design, develop, test, and maintain advanced software applications for our Satellite Ground Systems. This onsite role is based in State College, PA, Ft. Meade, MD, or Aurora, CO, and works in a Linux, Agile, DevOps environment. Responsibilities Design, implement, and test Java‑based applications and components for satellite ground systems Collaborate with systems engineers, hardware designers, and cross‑functional teams to define software requirements and specifications Maintain and modify existing codebases to meet performance, reliability, and scalability goals Participate in software design reviews, code reviews, and system integration activities Adhere to established software processes, documentation standards, and development practices, including management of operations concepts, requirements, interfaces, and other engineering artifacts Stay current with advances in Java and satellite technology to drive continuous improvement and innovation Qualifications Active TS/SCI with polygraph security clearance (adjudication date within three years of start date) U.S. citizenship A STEM degree and at least 8 years of relevant experience in object‑oriented Java development in a Linux environment Experience with unit testing tools such as JUnit Proficiency in scripting languages (Perl or Python) Experience working in an Agile/DevOps environment Preferred: Ansible, Jenkins, containers, Spring Framework, Security+ certification, Atlassian suite, satellite communications protocols, and secure coding practices in defense or aerospace contexts Benefits Competitive salary range: 107,500–204,500USD Health, dental, vision, life insurance, and long‑term disability coverage Retirement plan with employer match Paid time off, holidays, parental leave (including paternal), and flexible work schedules Career development and recognition programs, educational assistance, and child/adult backup care Relocation assistance for eligible candidates RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status. RTX provides affirmative action in employment for qualified individuals with a disability and protected veterans in compliance with applicable federal law.#J-18808-Ljbffr