Principal Systems Engineer

Date Posted:

2026-03-02

Country:

United States of America

Location:

US-TX-MCKINNEY-513WA ~ 2501 W University Dr ~ WING A BLDG

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: Secret

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 threat.  Our team solves tough, meaningful problems that create a safer, more secure world. 

The Systems Engineering Team is responsible for defining customer needs, functional and product architecture, requirements definition and decomposition, Model Based Systems Engineering (MBSE), system performance, and System Security Engineering (SSE). 

The Land and Air Defense Systems (LADS) department leads all aspects of Systems Engineering that drive a portfolio of sensors, command and control systems, and effectors designed to detect and defeat complex threats across the battlespace, all from our McKinney, TX location.

Land and Air Defense Systems (LADS) department Systems Engineers solve technical challenges at the System of System (SoS), System, Subsystem, and Component levels.  Key technical domains include Architecture, Requirements, Interface Definition, Radar Systems, Effector Systems, Battle Management, Command and Control, Communications, Network Design, and Battlespace Integration and Interoperability for Domestic and International customers.

What You Will Do:

• This individual will be responsible for providing analysis, developing requirements, supporting architecture development and integration activities at numerous levels of radar systems, subsystems and components.
• You will be called upon to support various aspects of our systems including development, production, on and off-site test support and sustainment.
• Collaborate with other engineering functions, non-engineering functions such as operations and supply chain, leadership and occasionally interface with customers and engineers from outside of Raytheon.
• You will travel up to 20% in support of integration and test activities, off site customer meetings and other engineering support activities.

Qualifications You Must Have:

• Typically requires a Bachelor’s degree in Science, Technology Engineering or Mathematics (STEM) and a minimum of eight (8) years of prior relevant experience
• Experience with radar systems, subsystems in Air & Missile Defense Systems or other systems engineering experience

Qualifications We Prefer:

• Advanced degree in Electrical Engineering, Mechanical Engineering or Systems Engineering.
• Detailed Knowledge of radar systems and subsystem hardware.
• Experience with Line Replaceable Unit (LRU), module and circuit card assembly integration and troubleshooting
• Experience with production tracking systems with a preference of Common Manufacturing Execution System (CMES) experience
• Strong collaboration skills
• Strong written and verbal communications skills

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.

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 is located onsite in McKinney, TX.

Learn More & Apply Now!

Clearance Information: 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 US Department of State government website here:  https://www.state.gov/m/ds/clearances/c10978.htm

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-sit