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

RTX•Davis, AL

21h•Onsite

About The Position

Collins Aerospace is seeking a Senior Principal Software Engineer for its Core Systems and Libraries team in Huntsville, Alabama. This onsite role leads the architecture and development of core software components, libraries, and tools that support scalable, certifiable avionics platforms. The engineer drives technical direction and execution across the development and verification lifecycle for safety-critical software, working with cross-functional teams to deliver solutions aligned with civil and military certification standards. The role includes defining software requirements and traceability, developing and verifying software in modern C++, producing DO-178 certification artifacts including DAL-A deliverables, and supporting certification with customers and regulatory authorities. The engineer will also contribute to peer reviews and align technical solutions with program objectives. Domestic and international travel may be required at less than 10%. The position offers opportunities to work with emerging aerospace technologies, develop expertise across the product lifecycle and software certification, and design software product lines for multiple platforms and global customers. U.S. citizenship is required to access information under the program or contract. No security clearance is required. Relocation is available.

Requirements

Typically, 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 across cross-functional engineering and program teams to deliver complex, integrated solutions.
U.S. citizenship is required to access information under the program or contract.

Nice To Haves

Hands-on experience supporting DO-178 software development and certification activities, such as requirements, verification, or certification artifacts.
Experience with C++ and VxWorks.
Experience writing high-level and low-level requirements.
Experience writing test cases and automated test procedures.
Experience with civil certification under DO-178, preferably DAL A.
Experience designing and developing flight management systems, software, aircraft applications, or middleware.
Familiarity with revision control concepts and tools such as GIT, Subversion, and JIRA.

Responsibilities

Lead the architecture and design of core software components, libraries, and tooling aligned with avionics system requirements.
Drive technical direction and execution across development and verification activities for safety-critical software under DO-178.
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, including engagement with customers and regulatory authorities.
Conduct and contribute to peer reviews to ensure quality, consistency, and compliance across the lifecycle.
Collaborate with engineering, program leadership, and customers to align technical solutions with program objectives.
Travel domestically and internationally as required, at less than 10%.

Benefits

Medical, dental, and vision insurance.
Three weeks of vacation for newly hired employees.
401(k) plan with employer matching and a separate employer retirement contribution, including a Lifetime Income Strategy option.
Tuition reimbursement program.
Student Loan Repayment Program.
Life insurance and disability coverage.
Optional pet, home and auto, additional life and accident, critical illness, group legal, and identity theft protection coverages.
Birth, adoption, and parental leave benefits.
Ovia Health, fertility, and family planning benefits.
Adoption Assistance.
Autism Benefit.
Employee Assistance Plan, including up to 10 free counseling sessions.
Healthy You Incentives wellness rewards program.
Doctor on Demand virtual doctor visits.
Bright Horizons child and elder care services.
Teladoc Medical Experts second-opinion program.
Potential annual short-term and/or long-term incentive compensation, depending on position level and other factors.