Senior Software Engineer (Onsite)

Date Posted: 2026-09-24 Country: United States of America Location: US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: 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 Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1

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.

Raytheon is seeking a mid‑level Embedded Software Engineer to join our engineering team supporting development of advanced defense, sensing, and EO/IR systems. This role focuses on Linux‑based compute platforms, data‑processing frameworks, and hardware/software integration on VPX/SOSA architectures. The ideal candidate has experience building scalable, secure, and mission‑critical software services running on x86_64 and ARM‑based single board computers.

What You Will Do

• Develop software components that provide core compute‑platform services, including data transport, scheduling, and processing orchestration
• Implement and maintain frameworks enabling scalable, high‑throughput, and low‑latency processing pipelines
• Define platform interfaces, APIs, and data contracts in coordination with Systems, FPGA, Sensor, and Hardware teams
• Integrate software across Linux‑based compute nodes and heterogeneous processing environments (CPU/GPU/accelerators)
• Manage and configure Linux OS environments and containerized runtime systems (Docker/Podman) to support platform deployment and operation
• Participate in Agile development, ensuring high‑quality code integration through CI/CD and DevSecOps pipelines
• Conduct performance profiling and optimization for compute workloads and platform services
• Diagnose and resolve complex issues in distributed, multi‑process, or multi‑node compute environments
• Contribute to improvements in platform architecture, development tooling, and overall software quality practices

Qualifications

You Must Have Typically requires a degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 5 years of prior relevant engineering experience. Experience in at least one systems‑level programming language (e.g., C, C++, or Rust) and developing software on Linux systems. Real time or low‑level system development experience. Experience applying Agile software development methodologies (Scrum, Kanban, or similar) alongside CI/CD pipelines and DevSecOps practices (automated builds, testing, secure integration workflows). The ability to obtain and maintain a U.S. government issued Secret security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer

Active and transferable U.S. government issued Secret security clearance. Experience with container technologies (Docker/Podman) including container security best practices. Understanding of Linux OS security, SELinux/AppArmor, or secure configuration hardening. Experience with application level security concepts (secure coding, vulnerability mitigation, dependency scanning). Familiarity with CMake/Conan/Artifactory workflows. Knowledge of NVIDIA GPU drivers or CUDA. Experience with IPMI, BIT development, or hardware/software integration. Experience with embedded Linux platforms (x86_64, aarch64) and real time kernels (RedHawk). Experience with kernel level development, device drivers, or KO modules. Familiarity with PCIe (MMIO, MSI X, DMA) and common I/O interfaces (UART, SPI/BPI). Experience with Ethernet, IP/TCP/UDP, or network interface development. Exposure to MIL STD 1553, Camera Link, or CoaXPress. Experience with Yocto, Petalinux, DeviceTree, GRUB, or U Boot. Familiarity with VPX/SOSA hardware architectures, SBCs, and EO/IR sensor systems.

What We Offer

• Opportunity to work on mission critical systems that support national defense
• Collaborative engineering culture with strong technical mentorship
• Onsite team environment with hands on access to hardware and labs
• Career development and training through Raytheon’s engineering advancement programs

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.

Location Information: This position is onsite at our campus in beautiful McKinney, TX.

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:

Please consider the following role type definition as you apply for this role: 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.

Relocation Offered Based On Eligibility

Welcome to Raytheon in McKinney, TX - YouTube

We Are RTX 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-site, hybrid or remote.

The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class.

RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.