Principal System Engineer (Onsite)

Date Posted:

2026-07-31

Country:

United States of America

Location:

US-FL-ST PETERSBURG-381BD ~ 7401 22nd Ave N ~ BLDG D

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:

Secret - Current

Security Clearance Status:

Active and existing security clearance required on day 1

Raytheon Company, Managed by Collins Aerospace

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.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

We are seeking an experienced Principal System Engineer to work onsite in St. Petersburg, FL. This position requires an active US Secret security clearance.

The Systems Engineer within the Systems Excellence Department contributes through all phases of the product development lifecycle (i.e. systems and software requirements, system architecture and design, software integration and test, simulation and test, integration and test, verification and sell-off), within an interdisciplinary process that ensures the customer and warfighters needs are satisfied through every stage. This commitment to excellence can sometimes include opportunities for travel, and flexible hours/shifts to ensure programmatic milestones are met.

Our team of talented engineers collaborates across disciplines from initial concepts to product sell off, integrates complex technology, debugs, and resolves interface issues, evaluates system performance, demonstrates, and sells off state-of-the-art products. We value diverse skills and experience, so don’t hold back. Your qualifications could add tremendous value to our team. Our customers come from all different backgrounds, and so do our employees. If you’re passionate about what you could accomplish here, we’d love to hear from you. You will join a team of talented engineers with the responsibility of defining the requirements, design, and architecture of subsystems that comprise the Cooperative Engagement Capability (CEC) product line, located in St. Petersburg, Florida, as part of Advanced Networking Solutions (ANS). The U.S. Navy’s CEC, a real-time ‘sensor-netting’ system that brings together radar data into a single integrated air picture from geographically dispersed ships, aircraft, and ground-based units. This integrated picture improves a battlegroup’s effectiveness by enabling longer range, cooperative, or layered engagements. Today’s CEC benefits from advancements in commercial and specialized technologies, as well as from the experience and expertise of the Collins Aerospace team, continually innovating to advance capability and performance.

Sign-on Bonus Eligible

What You Will Do:

• Provide technical leadership and mentorship to multidisciplinary teams in requirements development, system-level designs, and system-level models using Model-Based Systems Engineering (MBSE) principles.

• Lead the development and management of testable requirements and associated verification approaches, ensuring traceability and alignment across the entire engineering lifecycle.

• Define and oversee system architecture development, subsystem design, and detailed component/system analysis to meet customer needs and exceed technical expectations.

• Plan, direct, and execute integration and test activities in-house or at site locations, including hardware/software integration, troubleshooting, and operational testing.

• Develop, oversee, and refine robust verification and validation plans, including automated test execution and data analysis using tools like Python, MATLAB, and other scripting languages.

• Serve as a technical authority in applying systems and software modeling and simulation tools to support design trade-offs, performance analysis, and risk mitigation strategies.

• Lead the ut