Senior Systems Engineer - Onsite

Date Posted: 2026-09-01 Country: United States of America Location: US-FL-LARGO-382SR ~ 7887 Bryan Dairy Rd ~ BLDG 600 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.​ 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 after day 1 Senior Systems Engineer - Onsite 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. Role Description:    The Integrated Platforms (IP) team is hiring a Senior Systems Engineer to support programs for our US military and various international customers, keeping the world safe from foreign threats. IP supports multiple Collins contracts and is seeking to fill roles across several open contracts – our goal is to align each new hire with a position that best suits their skills and allows for career growth. As a Senior Systems Engineer, you will guide system development and integration, supporting test development, and working closely with our customers and suppliers to ensure we deliver world class solutions. This position requires: the ability to obtain a US Government Department of Defense (DoD) Secret Security Clearance after start .   Onsite: This is an onsite role supporting our Largo, FL location. Sign-on Bonus Eligible What YOU will do:   Support the development of full lifecycle solutions from CONOPS to Validation while collaborating with the customer, subcontractors, and executive leadership Play a key role in the Integration, Dry Run, and Formal Qualification Testing of the products you work on Analyze and generate mechanical design documents Influence decision-makers with recommended courses of action across complex problems Support business capture through identifying technological gaps and opportunities Qualifications You Must Have:  Ability to work in a multidisciplinary teams of design professionals including Electrical, Mechanical, Software, Test, Logistics and other System Engineers Practical experience in Mechanical Engineering and at least one of the following areas: Systems Engineering Test Engineering Software Engineering Electrical Engineering Experience across the Systems Engineering V with an emphasis on integration and test Experience in creating and reviewing mechanical drawings Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience or in absence of a degree, 9 years of relevant experience The ability to obtain a US Government DoD Secret Clearance U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Qualifications We Prefer: 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). Knowledge of military specifications (e.g., MIL-STD-810, MIL-STD-461) for designing rugged and reliable systems Experience leading discussions with customers and vendors/subcontractors Experience writing and reviewing BOEs A current active and transferable US Governement DoD Secret Clearance What We Offer: Some of our competitive benefits package includes:    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, additional life and accident insurance, critical illness insurance, group legal, ID theft protection  Birth, adoption, parental leave benefits  Ovia Health, fertility, and family planning   Adoption Assistance            Autism Benefit   Employee Assistance Plan, including up to 10 free counseling sessions   Healthy You Incentives, wellness rewards program  Doctor on Demand, virtual doctor visits   Bright Horizons, child and elder care services  Teladoc Medical Experts, second opinion program   Eligible for relocation assistance And more!   Learn More & Apply Now! Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own c