Senior Principal Systems Engineer - C3MS (Onsite)

Date Posted: 2026-06-11 Country: United States of America Location: US-DC-WASHINGTON-BOLLING AFB-CUST ~ 2859 Defense Blvd ~ BOLLING AFB, Bay 14 (External Site) 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: TS/SCI Security Clearance Status: Active and existing security clearance required on day 1 Senior Principal Systems Engineer – C3MS (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 Systems Engineering position in Washington, DC (Anacostia) supporting the White House Communications Agency (WHCA). In this role, you will ensure the reliability, modernization, and mission readiness of the White House Secure Voice Network (WHSVN). You will provide full-spectrum engineering support across secure voice systems, including planning, design, implementation, testing, documentation, and lifecycle management for both circuit switched (TDM) and IPbased platforms. You will work directly with WHCA project managers and technical teams to acquire and deploy new capabilities, evaluate system performance, and support WHCA’s transition from legacy infrastructure to advanced secure IP voice solutions. This is a hands-on, mission focused role integral to national level Command and Control communications. This position requires: US Government Department of Defense (DoD) Top Secret/SCI with a current SSBI Security Clearance Day 1. Onsite: This is an onsite role supporting our Washington, DC (Anacostia) location. Sign-on Bonus Eligible What YOU will do: Provide engineering support for WHSVN projects, procurements, and system enhancements. Review existing system designs and develop updated technical solutions for both TDM and IP secure voice architectures. Develop and maintain system drawings, test procedures, and other engineering documentation. Support system integration activities, including site surveys, installation validation, and interoperability assessments. Provide configuration guidance and assist with required architecture or infrastructure modifications. Analyze technical requirements, create engineering plans, and manage work through WHCA’s ticketing and collaboration tools. Participate in program reviews, audits, and technical meetings, offering recommendations to improve system performance and support modernization efforts. Produce design guidance, network depictions, and migration plans for full WHSVN implementation. Qualifications You Must Have: Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience Active and transferable US Government Department of Defense (DoD) Top Secret/SCI with a current SSBI Security Clearance required prior to start date Ability to obtain and maintain higher access and Special Access Program eligibility U.S. Citizen - U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract 3–5 years of experience supporting circuit switched and IPbased systems Experience with Command and Control Switching Systems on mission critical networks Knowledge of the Defense Red Switch Network (DRSN) through operational, testing, or engineering roles Experience contributing to system accreditation efforts, including XACTA updates and RMF execution Experience configuring, installing, and validating encryption devices for secure deployment Compliance with DoD 8140 Cyber Workforce Qualification requirements Qualifications We Prefer: Experience supporting secure voice or Command and Control systems in mission critical environments. Experience modernizing legacy TDM systems and deploying secure IPbased voice solutions. Experience with system interoperability testing, lab validation, and technical risk assessment. Ability to produce comprehensive engineering documentation such as system diagrams, test plans, and lifecycle planning materials. Familiarity with WHCA environments, DRSN architectures, or DoD enterprise communications systems. Experience supporting RMF compliance in collaboration with ISSO/ISSM personnel. Experience coordinating with facility teams on power, cooling, and physical infrastructure requirements. Strong skills in managing complex technical tasks, maintaining accurate records, and communicating with government stakeholders. 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 145,600 USD - 276,800 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 RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.