Sr Principal Software Engineer -Core Systems & Libraries (Onsite)

About the role

Join the growing Collins Aerospace Core Systems and Libraries team and play a key role in shaping the software foundation that powers modern aircraft. We are seeking a Senior Principal Software Engineer who thrives on solving complex technical challenges and driving high-impact solutions across safety-critical systems.

Responsibilities

• Lead the architecture and design of core software components, libraries, and tooling aligned to avionics system requirements
• Drive technical direction and execution across development and verification activities for safety-critical software (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 cross-functionally with engineering, program leadership, and customers to align technical solutions with program objectives
• Willing and able to travel as required (domestic and international)

Qualifications

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience
• U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract
• Proven experience designing and developing software architecture, libraries, or platform-level components within an aerospace or safety-critical environment
• Demonstrated ability to lead technical execution of projects, including customer engagement and presenting to senior stakeholders
• Hands-on experience supporting DO-178 software development and certification activities (e.g., requirements, verification, or certification artifacts)
• Experience working across cross-functional engineering and program teams to deliver complex, integrated solutions
• 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 DO-178 – DAL A preferred
• Experience with design and development of Flight Management Systems, Software, Aircraft Applications or Middleware
• Familiar with revision control concepts and tools (e.g. GIT, Subversion, JIRA)

What You Will Learn

• Gain hands-on experience with cutting-edge and emerging technologies that are shaping the future of avionics and aerospace systems
• Build end-to-end expertise across the full product lifecycle, from requirements and design through verification and delivery of safety-critical systems
• Develop a deep understanding of software certification (DO-178) and how world-class avionics products meet rigorous regulatory standards
• Learn how to design, scale, and sustain software product lines that support a wide range of platforms and global customers

What We Offer

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• A generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy (pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection)
• Birth, adoption, parental leave benefits
• Ovia Health, fertility, and family planning
• 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
• And more!

Salary Range

$132,400 - $251,600 USD

Benefits

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• A generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy (pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection)
• Birth, adoption, parental leave benefits
• Ovia Health, fertility, and family planning
• 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
• And more!

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