Senior Systems Engineer (ONSITE)

Collins Aerospace , a division of RTX, is seeking a Senior Systems Engineer to develop advanced communication systems across ground and airborne platforms. Location: Marlbrough, MA (US). This is an onsite role for U.S. Citizens with an active and transferable *Secret* security clearance required before the start date. Responsibilities Lead the development of full‑life‑cycle solutions from CONOPS to validation. Define and perform laboratory activities, including setup, configuration management, and testing. Integrate solutions within their target environment. Coach and review the work of lower‑level professionals. Influence others regarding policies, practices, and procedures. Manage small projects or processes. Prepare and execute Design Reviews, Integration, Dry‑Run, and Formal Qualification Testing. Review minor changes and document moderate changes in systems or processes to solve complex problems. Influence decision‑makers with recommended courses of action. Analyze and document system behaviors. Support system trade studies, requirements analysis, and allocation to subsystems. Define modeling, hardware, and software interfaces. Qualifications Strong integration and test experience, including test procedure development, execution, reporting, and automation. Proficiency with tooling such as Microsoft products or tasking boards (Jira, IBM EWM, etc.). Typical education: STEM degree and a minimum of 5 years of relevant experience, or an advanced degree with at least 3 years of experience. Valid U.S. citizenship and an active, transferable Secret government‑issued clearance required on day1. Preferred Qualifications Experience with SATCOM, LOS/BLOS, AEHF, PTW, or V/UHF radio systems. Experience in Environmental Qualification Testing (EQT). Experience with system‑level integration, verification, and validation for ground, ship, submarine, or airborne platforms. Experience supporting software applications and hardware development. Experience with virtual‑machine design and deployment. Proficiency with CAMEO or Rhapsody tooling. Outstanding written, verbal, and presentation communication skills, with the ability to interact with IPT leaders, engineers, program managers, and customers. Benefits Medical, dental, and vision insurance. Three weeks of vacation for newly hired employees. Generous 401(k) plan with employer matching and separate retirement contribution. Tuition reimbursement and student‑loan repayment programmes. Life and disability insurance; optional coverage such as pet, home, auto, additional life and accident, critical illness, group legal, and ID‑theft protection. Parental leave, adoption assistance, and fertility / family‑planning support. Employee Assistance Program with free counseling. Wellness incentives and medical digital services (Doctor on Demand, Teladoc). Child and elder care services. Relocation assistance. EEO Statement 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, veteran status, or any other applicable protected class. #J-18808-Ljbffr Prattwhitney