Raytheon Technologies

Senior Principal Systems Engineer - C3MS (Onsite)

Raytheon Technologies$145K — $276K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Degree in STEM or related field with 10+ years of experience (or 7+ years with advanced degree)
  • Active DoD Top Secret/SCI security clearance required on day 1
  • Ability to obtain and maintain higher access and Special Access Program eligibility
  • U.S. citizenship required for security clearance eligibility
  • 3-5 years of experience with circuit switched and IP-based systems
  • Experience with Command and Control Switching Systems on mission-critical networks
  • Knowledge of the Defense Red Switch Network (DRSN)

Responsibilities

  • Provide engineering support for WHSVN projects and system enhancements
  • Review and develop technical solutions for TDM and IP secure voice architectures
  • Maintain system drawings, test procedures, and relevant documentation
  • Support system integration through site surveys and installation validation
  • Analyze technical requirements and manage tasks via ticketing systems
  • Participate in program reviews and offer system performance recommendations
  • Produce system design guidance and migration plans

Benefits

  • Medical, dental, and vision insurance
  • Three weeks of vacation for newly hired employees
  • Generous 401(k) plan with employer matching and contributions
  • Tuition reimbursement and student loan repayment programs
  • Life insurance and disability coverage
  • Optional coverages like pet, home, and auto insurance
  • Adoption and parental leave benefits
  • Wellness rewards program with incentives
  • Employee assistance program with free counseling sessions
  • Virtual medical visit options and second opinion services
  • Relocation assistance available
Full Job Description
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

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.


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.

Relocation: Assistance may be provided

Employee Referral Eligible

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.

About Raytheon Technologies

Raytheon Solipsys, a wholly-owned subsidiary of the Raytheon Company, is an industry leader in the development of integrated Command and Control (C2) Network-Centric solutions for the Domestic and International DoD and Homeland Security. Through proven systems and software engineering practices, built on the invention and application of innovative technologies, they deliver the C2 infrastructure necessary to effectively control security/military forces in any environment. Their reliable solutions assure information superiority, increased shared awareness, deep sensor reach, aircraft control, air defense, disaster management, and time-critical decision making.

Raytheon Technologies Careers

Join the innovative world of Raytheon Technologies, a leader in aerospace and defense, where we offer unparalleled job opportunities in an environment that champions diversity, leadership, and professional growth.

Work You’ll Do

At Raytheon Technologies, you’ll be part of a company that values innovation and leadership. Our team is dedicated to solving some of the most complex challenges in aerospace and defense, making significant impacts worldwide. With a culture that fosters diversity and inclusion, you will collaborate with some of the brightest minds in the industry.

Transform Your Career

Step into a role that harnesses your skills and propels your career to new heights. Raytheon Technologies is not just about thinking big but making those big ideas happen. We provide robust career development opportunities that include comprehensive training and development programs, leadership workshops, and continuous learning through our internal platforms.

Innovate and Lead

Join our team of over 60,000 professionals globally, who are not only experts in their fields but are also driven by a passion for innovation and excellence. At Raytheon Technologies, you are positioned at the forefront of the industry, where your work directly contributes to groundbreaking advancements in technology and defense.

Internship and Employment Opportunities

Whether you’re starting your career or looking to advance, Raytheon Technologies offers a range of employment and internship opportunities that can help you achieve your professional goals. Our internships provide a solid foundation of skills and experiences, while our full-time positions offer a path to personal and professional growth within the company.

Benefits and Culture

Our employees enjoy a competitive package of benefits and rewards that reflect their invaluable role in our company. From health and wellness programs to performance bonuses and flexible working conditions, we ensure our team members are well taken care of.

Networking and Professional Development

At Raytheon Technologies, networking and professional development are part of our DNA. We encourage our employees to engage in internal and external networking events, leadership training, and diversity initiatives that enhance their career journey.

Join Our Team

Explore the numerous positions available that match your skills and interests. We are looking for passionate, curious, and solution-driven team players who are ready to take their career to the next level.

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Join us in our mission to create a safer future and be a part of a team that values integrity, excellence, and teamwork. At Raytheon Technologies, your career is just the beginning of a lifelong journey of professional and personal growth.
Learn more about Raytheon Technologies
Size
14,771 employees
Market Cap
$32,494
Industry
Founded
1922
NASDAQ

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