Senior Systems Engineer (Onsite)

RTX•Aurora, CO

4d•$86,800 - $165,200•Onsite

About The Position

At RTX, the world’s largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings 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 threat. We deliver solutions that help our nation and allies defend freedom and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. Raytheon is seeking a Senior Systems Engineer where you will play a vital role in designing, maintaining, and ensuring the operational readiness of complex systems critical to national security. This onsite position supports a 24/7 mission environment, requiring technical expertise, adaptability, and commitment to excellence. Location: Aurora, CO (Buckley)

Requirements

Typically requires a Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 5 years of prior engineering experience or equivalent experience.
Experience in performing maintenance, operations, or field service in complex technical environments (e.g., RF systems, satellite communications, large mechanical systems, industrial equipment, or similar).
Experience with system integration, verification, validation, and supportability analysis.
An active and transferable TS/SCI CI Poly U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, only U.S. citizens are eligible for the required security clearance.

Nice To Haves

Experience performing preventive, predictive, and corrective maintenance on national security mission system critical infrastructure.
Experience monitoring system performance and responding to equipment anomalies, failures, and environmental impacts.
Experience with maintaining configuration control and documenting equipment changes.
Support rotating 12-hour shifts, including days, nights, weekends, and holidays
Experience safely ascending and working at heights using ladders and elevated work platforms.
Experience handling equipment weighing up to 50 pounds and performing physically intensive tasks in various environments.

Responsibilities

Lead and execute preventive, predictive, and corrective maintenance activities for mission-critical systems and infrastructure, applying systems engineering principles to sustain availability, reliability, and operational readiness.
Analyze system performance, identify degradation trends, and lead troubleshooting and root-cause analysis of complex hardware, software, and system-level anomalies.
Develop and implement technical solutions and corrective actions to restore system capability, improve reliability, and reduce recurrence of equipment and system failures.
Provide technical leadership during system anomalies, mission-impacting events, and environmental disruptions, coordinating troubleshooting efforts and supporting timely restoration of operational capability.
Maintain system configuration integrity through engineering documentation, change control, baseline verification, and validation of hardware and software configurations.
Evaluate system changes, maintenance activities, and operational impacts to ensure continued compliance with technical requirements, established procedures, and mission objectives.
Develop, review, and improve maintenance procedures, technical documentation, troubleshooting processes, and engineering workflows based on operational experience and system performance data.
Serve as a technical resource and mentor for engineering and maintenance personnel, providing guidance on troubleshooting, system operation, maintenance practices, and technical decision-making.
Collaborate with systems engineering, operations, maintenance, program leadership, customers, and other stakeholders to resolve technical issues and ensure system readiness throughout the operational lifecycle.
Support integration, verification, validation, testing, and implementation of system modifications, upgrades, and engineering changes within an operational environment.
Perform hands-on engineering and maintenance activities as required, including work on antenna systems, elevated structures, and mission equipment in indoor and outdoor environments.
Support 24/7 mission operations through rotating shifts, anomaly response, emergency support, and on-call assignments while providing senior-level technical expertise during critical events.