> Markdown version of [/jobs/ext/3644496-principal-systems-engineer-onsite](https://www.wearedevelopers.com/jobs/ext/3644496-principal-systems-engineer-onsite). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Systems Engineer (Onsite) - **Company:** RTX - **Location:** Alexandria, VA, United States - **Salary:** $107,500.0 - $204,500.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Systems Engineering, Unix, Perl (Programming Language), Python (Programming Language), Microsoft Office, Scripting, Vba Programming Language - **Published:** October 9, 2026 - **Apply:** https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-VA-ALEXANDRIA-7900-CUST--7900-Telegraph-Rd--7900-CUST-External-Site/Principal-Systems-Engineer--Onsite-_01881388 ## About the Role * Typically requires a Bachelor's degree in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 8 years of prior engineering experience or equivalent experience. * Experience training and certifying in an operational position. * Experience in space operations of complex hardware systems. * Experience in operational mission planning and management. * Experience in Leadership of engineering studies and innovative projects. * An active and transferable TS/SCI with CI Poly 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 the required security clearance. Qualifications We Prefer * Experience leadership of system anomaly resolution teams. * Experience and proficient use of both Windows and UNIX platforms. * Experience with Perl, Python, VBA, and/or other scripting languages. * Experience using the Microsoft Office suite. ## Description Raytheon is seeking a Principal Systems Engineer for satellite Operations and Maintenance (O&M) positions. The selected candidate will join a skilled O&M team working in a 24/7 operations environment. The availability of working overtime and non-scheduled call-in support, potentially working a combination of day staff and shift schedules, based on the dynamic needs of the team, is required. The O&M team is responsible for all aspects of system operations and planning to include monitoring day-to-day activities and identifying and solving challenging problems as they occur. After completion of comprehensive on-the-job training, the candidate will be part of a certified team of subject matter experts that are integral to our customer's success. Location: Alexandria, Virginia, * Monitor system health and performance of critical hardware systems supporting key customer operations and collections. * Ensure required system maintenance activities are functional and meeting documented timing and performance results. * Report and document anomalous system performance and interact with other team members to validate operational performance. Implement workarounds and contingency plans to minimize impacts. of system anomalies. * Develop troubleshooting/recovery plans to address system discrepancies and restore mission capabilities. * Maintain technical knowledge of formal procedures associated with required system maintenance, troubleshooting and recovery. * O&M training/mentoring, trending and analysis, procedure development, data collection, fault isolation, and performing real-time manual actions to restore system capabilities. * Work closely with delivering factories to support development activities, installation of ground software deliveries, and special test configurations. * Crosstrain in other operator positions as assigned and mentor and train other personnel on the contract team. * Lead interactions and support all missions to include the initialization of new missions. * Work in an adaptable small team environment (3-7 people).