Senior Software Engineer (Mission Systems)

RTX (Raytheon); McKinney (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

RTX is seeking a Senior Software Engineer to join the Mission Systems Engineering Team in the DFW area. You will apply systems thinking to real-time software development across hardware and software interfaces, contributing to system-of-systems architecture and PDR/CDR readiness.

The role requires a strong background in C++, embedded real-time software, Linux or VxWorks, and collaboration across Systems, Software, Firmware, and Hardware teams. U.S. citizenship is required for this role.

Qualifications

• Bachelor's degree in Science/Engineering with 5+ years of engineering experience.
• Experience with system-of-systems architecture and subsystem interface design.
• Experience developing, testing, and integrating real-time software in C++ and RTOS environments.
• Experience using engineering tools such as Cameo, Enterprise Architect and MS Visio.
• U.S. citizenship and ability to obtain a security clearance.

Responsibilities

• Apply systems thinking to CONOPS development, V-model alignment, specification tree analysis, and system decomposition.
• Perform high-level design at the System-of-Systems level and design interfaces for hardware and software.
• Develop Software Requirements Specifications (SRS).
• Collaborate with Systems Architects, Technical Leads, and multi-disciplinary teams on design exploration and problem solving.
• Architect, implement, test, and debug embedded real-time software across heterogeneous hardware and software systems.
• Participate in design reviews (PDR and CDR).
• Mentor junior engineers.
• Occasional business travel up to 5%.

Skills

C++

Embedded software

RTOS

System-of-systems

Linux

VxWorks

Software architecture

Cross-functional collaboration

Education

Bachelor's degree in STEM

Advanced degree (preferred)

Tools

Cameo

Enterprise Architect

MS Visio

Job description

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 freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

As part of the Software Engineering Space and Air Center team, you will be an integral part of helping Raytheon further our vision to be the global leader in core and next‑paced defense and security solutions. By any measure, Raytheon is an exciting and rewarding place to work. We pride ourselves on developing mission‑driven, world‑class talent. The result is a workforce that takes pride in the company and consistently delivers superior solutions.

Raytheon has an opportunity for a Senior Software Engineer to join our Mission Systems Engineering Team in the DFW area. We're seeking a highly capable Senior Software Engineer with strong systems thinking, deep software architecture experience, and domain knowledge in advanced defense or aerospace systems. This role is ideal for someone who thrives in a fast‑paced environment, collaborates across disciplines, and can drive software design at the system‑of‑systems level

What You Will Do

This position is for a Senior Software Engineer with professional experience in the development and implementation of software for real‑time applications.

Deliverables include but not limited to:

• Apply systems thinking to software engineering challenges including CONOPS development, V-model alignment, specification tree analysis, and system decomposition.
• Perform software high‑level design at the System‑of‑Systems level and design, develop, and refine subsystem and platform interfaces for both hardware and software.
• Develop Software Requirements Specifications (SRS).
• Collaborate with Systems Architects, Technical Leads, and Senior Technical Fellows and cross‑discipline teams (Systems Engineering, Algorithms, Firmware and Hardware) on design exploration and problem solving.
• Architect, implement, test, and debug embedded real‑time software in heterogeneous hardware, firmware, and software systems.
• Participate in major design reviews including PDR and CDR.
• Mentor less experienced engineers.
• Occasional business travel may be required, up to 5%.

Onsite role in McKinney, Texas, with local residency or relocation required.

Qualifications You Must Have

Typically requires a Bachelor's degree in Science, Technology, Engineering, Mathematics, or STEM and a minimum of 5 years of prior engineering experience. Or an Advanced degree and 3 years of relevant experience.

Experience with software architecture for complex system‑of‑systems, subsystem interface design, and software system integration and test.

Experience with engineering and modeling tools (Cameo or Enterprise Architect and MS Visio), along with familiarity with MOSA standards including OMS and AMS‑GRA.

Experience developing, testing, and integrating real‑time software applications in C++ or related software languages and experience with Linux, VxWorks, or other real‑time operating systems.

Product‑domain experience in at least one of the following areas:

• RF or EO/IR Sensors
• Electronic Warfare
• Effectors
• Communications
• Multi‑domain Mission Systems

The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer

• Demonstrated collaboration with Systems, Software, Firmware, and Hardware engineering teams.
• Ability to develop and present complex technical material at design reviews such as PDR and CDR.
• Ability to work effectively in fast‑paced, dynamically changing environments.
• Proactive problem‑solving and strong ownership mindset.
• Experience working in system integration lab (SIL) environments with physical hardware including test benches and si