Principal Systems Engineer

Date Posted: 2026-07-13 Country: United States of America Location: US-CO-AURORA-S75 ~ 16800 E Centretech Pkwy ~ BLDG S75 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: TS/SCI without Polygraph Security Clearance Status: Active and existing security clearance required on day 1 At Raytheon, the foundation of everything we do is rooted in our values and a higher calling—to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today's mission and stay ahead of tomorrow's threats. Our team solves tough, meaningful problems that create a safer, more secure world. We have an exciting opportunity for a Principal Systems Engineer, supporting one of our premier programs within the Mission Engineering and Platform & Security Integration (PSI) Agile Release Train (ART). In this role, you will help design and deliver common application capabilities supporting a next-generation satellite Command and Control (C2) system. As part of the Application Services team, you will partner with software engineers, architects, and product leadership to develop reusable capabilities that improve consistency, reliability, observability, and developer productivity across the program. This position is contingent upon contract award. The work is on-site in Aurora, CO. What You Will Do Lead systems engineering activities for reusable Application Services capabilities from concept through verification. Define functional behavior, interfaces, operational scenarios, acceptance criteria, and verification strategies for common application capabilities. Design observability solutions supporting application instrumentation, metrics, logging, tracing, health monitoring, alerting, and mission awareness across mission-critical services. Develop verification strategies supporting automated unit, feature, integration, and end-to-end testing. Collaborate with software engineers to design and support automated test scenarios using Playwright or similar UI/API automation frameworks. Develop reusable engineering artifacts, design patterns, and shared services that improve consistency and reduce duplication across Agile product teams. Partner with Platform Engineering, Site Reliability Engineering (SRE), Cyber Engineering, and application development teams to integrate common capabilities within CI/CD and DevSecOps workflows. Participate in technical reviews, Program Increment (PI) Planning, demonstrations, customer technical exchanges, and integration events while maintaining a systems-level perspective. Qualifications You Must Have Typically requires a Bachelor's Degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 8 years of prior relevant experience. Experience performing Systems Engineering on software-intensive systems, including requirements definition, interface development, and verification planning. Experience collaborating with software development teams in Agile environments and supporting software testing throughout the systems engineering lifecycle. Experience translating mission needs into technical solutions with strong written and verbal communication skills. Active and transferable U.S. government-issued TS/SCI security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer Experience developing automated test scenarios using Playwright or similar UI/API automation frameworks. Experience designing observability solutions utilizing technologies such as OpenTelemetry, Prometheus, Grafana, or similar platforms. Experience with distributed systems, microservices, Kubernetes, containerized applications, and cloud-native architectures. Experience with CI/CD pipelines, DevSecOps practices, Infrastructure as Code (IaC), and automation scripting. Experience with Model-Based Systems Engineering (MBSE) methodologies and digital engineering practices. Experience incorporating AI capabilities for anomaly detection, predictive analytics, intelligent alerting, root cause analysis, or log intelligence. Experience developing reusable software frameworks, shared services, or common engineering capabilities supporting multiple Agile product teams. Experience working with customers, operators, and external stakeholders to translate operational needs into engineering solutions. Experience supporting satellite Command and Control (C2), mission management, or other software-intensive defense systems. What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation. Relocation eligible. Learn More & Apply Now! Please consider the following role type definition as you apply for 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. This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the U.S. Department of State website here: https://www.state.gov/m/ds/clearances/c10978.htm Location: Aurora, CO: https://careers.rtx.com/global/en/raytheon-aurora-co-location As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the