Senior System Engineer - (Onsite) at RTX in Largo, FL

Senior System Engineer - (Onsite) Location: US-FL-LARGO-382SS ~ 7887 Bryan Dairy Rd. ~ BLDG 100 Date Posted: 2026-06-01 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: 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: Top Secret Security Clearance Status: Active and existing security clearance required after day 1 Senior Systems Engineer - (Onsite) Raytheon Company, Managed by Collins Aerospace Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio, and expertise to solve customers’ toughest challenges and to meet the demands of a rapidly evolving global market. You will be a member of a multi-disciplinary group of System, Hardware and Software Engineers. We are a growing business developing new products in an aggressive and competitive market. The new designs are exciting and technically challenging. 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) Top Secret Security Clearance. 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 Identify and document test issues to support root cause analysis Influence decision-makers with recommended courses of action across complex problems Support business capture through identifying technological gaps and opportunities Qualifications You Must Have: 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 The ability to obtain a US Government Department of Defense (DoD) Top Secret Security Clearance. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Ability to work in a multidisciplinary teams of design professionals including Electrical, Mechanical, Software, Test, Logistics and other System Engineers Practical experience in at least two of the following areas: Systems Engineering Test Engineering Software Engineering Mechanical Engineering Electrical Engineering Experience across the Systems Engineering V with an emphasis on integration and test Experience in documenting failures and analyzing them to identify potential resolutions Qualifications We Prefer: Active and transferable U.S. Government (DoD) Secret Clearance with the ability to obtain an active U.S. Government (DoD) Top Secret Clearance 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 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 critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. 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! *Please ensure the role type (defined below) is appropriate for your needs before applying to this role. Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again. Relocation: Assistance may be provided Employee Referral Eligible At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again. Apply now and be part of the team that’s redefining aerospace, every day. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. 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, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms: Click on this link to read the Policy and Terms