
Senior Principal Software Engineer - Core Systems & Libraries (Onsite)
RTX Corporation5 days ago
Davis, CA, USAStaff+
Base Salary
$132k - $252k/yr
Responsibilities
- Lead architecture and design of core software components, libraries, and tooling for avionics systems.
- Drive technical direction and execution across development and verification activities for safety-critical DO-178 software.
- Define and manage software requirements, decomposition, and traceability across complex systems.
- Develop and verify software using modern C++ and object-oriented design principles.
- Own and produce DO-178 certification artifacts, including DAL-A deliverables.
- Lead and support certification efforts with customers and regulatory authorities.
- Conduct and participate in peer reviews across the software lifecycle.
- Collaborate with engineering, program leadership, and customers on integrated technical solutions.
- Travel domestically and internationally as required.
Requirements
- A STEM degree and 10 years of relevant experience, or an advanced related degree and 7 years of experience.
- U.S. citizenship because only U.S. citizens are authorized to access information under the program or contract.
- Experience designing and developing software architecture, libraries, or platform-level components in aerospace or safety-critical environments.
- Ability to lead technical project execution, engage customers, and present to senior stakeholders.
- Hands-on experience with DO-178 software development and certification activities, including requirements, verification, or certification artifacts.
- Experience working across cross-functional engineering and program teams.
- Preferred experience with C++ and VxWorks.
- Preferred experience writing high-level and low-level requirements, test cases, and automated test procedures.
- Preferred experience with civil DO-178 DAL A certification.
- Preferred experience with flight management systems, software, aircraft applications, or middleware.
- Familiarity with revision control concepts and tools such as Git, Subversion, and Jira.
Benefits
- Medical, dental, and vision insurance.
- Three weeks of vacation for newly hired employees.
- 401(k) plan with employer matching funds and a separate employer retirement contribution, including a Lifetime Income Strategy option.
- Tuition reimbursement and student loan repayment programs.
- Life insurance, disability coverage, and optional supplemental insurance programs.
- Birth, adoption, parental leave, adoption assistance, fertility and family-planning benefits.
- Autism Benefit, Employee Assistance Plan with up to 10 free counseling sessions, and wellness rewards.
- Virtual doctor visits, second-opinion services, and child and elder care services.
- Onsite work in Huntsville, Alabama; travel may be required.
About RTX Corporation
RTX Corporation builds aerospace and defense systems through its Collins Aerospace, Pratt & Whitney, and Raytheon businesses, serving commercial aviation, the U.S. government, and allied militaries. Its products range from aircraft engines and avionics to radars, missiles, and command-and-control software, sold via long-term OEM programs and defense contracts. Formed in 2020 by the Raytheon–United Technologies merger, RTX is headquartered in Arlington, Virginia and trades on the NYSE as RTX.