Job Description
Date Posted: 2026-03-27 Country: United States of America Location: US-FL-LARGO-382SS ~ 7887 Bryan Dairy Rd. ~ BLDG 100 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required on day 1 Raytheon Company, Managed By Collins Aerospace At RTX, the world largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. We are seeking a Principal Systems Engineer to work onsite in Largo, FL. This position requires an active Secret security clearance with the ability to obtain Top Secret. What You Will Do: Organize and lead the development of full lifecycle solutions from CONOPS to Validation while collaborating with the customer, subcontractors, and executive leadership. Guide the development of new technologies to support business capture. Identify technology gaps in existing systems and solutions. Own the preparation, cost, and schedule of Design Reviews as well as Development, Integration, Dry Run, and Formal Qualification Testing. Influence decision-makers with recommended courses of action across complex problems. Review and document major changes in systems or processes to solve complex problems. Qualifications You Must Have: Ability to lead multidisciplinary teams of design professionals including Electrical, Mechanical, Software, Test, Logistics and other System Engineers. Experience in at least three of the following areas: Systems Engineering/Test Engineering/Software Engineering/Mechanical Engineering/Electrical Engineering. Experience across the Systems Engineering V with an emphasis on development, integration, and test. Experience working with Secure Voice and VTC Communication Systems. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience. Active and transferable U.S. government issued Secret security clearance is required prior to start date. Must have the ability to obtain Top Secret. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Qualifications We Prefer: Familiarity with embedded systems, microcontrollers, and communication protocols (e.g., I2C, SPI, UART). Experience with voice communication systems, including VoIP (Voice over IP) protocols like SIP, RTP and SRTP. Familiarity with multicast networking (e.g., IGMP, PIM) for efficient data transmission in communication systems. Strong understanding of networking principles, including TCP/IP, UDP, and network troubleshooting tools (e.g., Wireshark). Basic understanding of firmware development (VHDL) and/or software development (C/C++, Python). Knowledge of military specifications (e.g., MIL-STD-810, MIL-STD-461) for designing rugged and reliable systems. Proficiency in system design tools (e.g., MATLAB, Simulink, or equivalent). Experience leading discussions with customers and vendors/subcontractors. A current active Top-Secret Clearance. What We Offer: Medical, dental, and vision insurance Three weeks of vacation for newly hired employees Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option Tuition reimbursement program Student Loan Repayment Program Life insurance and disability coverage Optional coverages you can buy pet insurance, home and auto insurance