Senior Principal Software Engineer - Core Services and Libraries (Hybrid)

Role overview

Responsibilities

• Lead architecture and design of core software components, libraries, and tools aligned with avionics requirements.
• Drive development and verification of safety-critical software and manage requirements, decomposition, and traceability.
• Develop and verify software using modern C++ and object-oriented design.
• Produce DO-178 certification artifacts, including DAL-A deliverables, and support certification with customers and regulators.
• Conduct peer reviews and collaborate with engineering, program leadership, and customers.
• Travel domestically and internationally as required, under 10%.

Required qualifications

• Typically requires a STEM degree and at least 10 years of relevant experience, or an advanced degree in a related field and at least 7 years of experience.
• Experience designing and developing software architecture, libraries, or platform-level components in an aerospace or safety-critical environment.
• Experience leading technical execution of projects, including customer engagement and presentations to senior stakeholders.
• Experience working with cross-functional engineering and program teams to deliver complex integrated solutions.
• Willingness and ability to travel as required, domestically and internationally, under 10%.

Preferred qualifications

• Hands-on DO-178 development or certification experience, including requirements, verification, or certification artifacts, is preferred.
• C++ and VxWorks experience; high- and low-level requirements, test cases, or automated test procedures; and Civil Certification DO-178 DAL A experience are preferred.
• Flight Management Systems, aircraft applications, or middleware experience and familiarity with Git, Subversion, or JIRA are preferred.

Workplace

• The role is identified as hybrid, with work regularly split between onsite and offsite; the onsite ratio is determined with the leader.
• The description also states “Location: Onsite in Huntsville, AL.”

Compensation

• The stated salary range is USD 132,400–251,600; no pay cadence is specified.
• Relocation is available; benefits may include medical, dental, vision, retirement, paid time off, and other programs.