Principal Avionics Software Engineer - GNSS; ONSITE

Collins Aerospace seeks a Principal level Global Navigation Satellite System (GNSS) Software Engineer to support the development, integration, and verification of advanced avionics and Positioning, Navigation, and Timing (PNT) software. The role focuses on designing, implementing, testing, and validating safety‑critical GNSS software in compliance with DO‑178C DAL A processes. This is an onsite position in Melbourne, Florida.

• Design, implement, integrate, and test embedded software for advanced avionics navigation systems.
• Develop and execute verification plans, procedures, and test cases for GNSS algorithms, navigation functions, and integrity‑monitoring software.
• Perform requirements‑based verification at the unit, integration, and system levels.
• Apply automation, scripting, and GenAI‑enhanced tools to improve verification quality and efficiency.
• Maintain full requirements, design, code, and test traceability per DO‑178C DAL A standards.
• Participate in formal engineering reviews, including requirements, design, code, and test readiness reviews.
• Collaborate with navigation algorithm, systems, and hardware engineering teams to ensure robust end‑to‑end system performance.
• Support certification activities, including documentation, audits, and generation of verification artifacts for airworthiness approval.

• Develop deep expertise in GNSS, including GPS signal structures, tracking algorithms, navigation filters, and PNT system performance.
• Gain hands‑on experience in jamming/spoofing detection, RF threat analysis, and resilient navigation techniques.
• Learn DO‑178C DAL A development and verification practices for safety‑critical avionics.
• Build technical leadership capabilities in advanced navigation and avionics systems.

• Degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of relevant experience or an advanced degree with a minimum of 5 years of experience.
• Experience with embedded C/C++ software development and proficiency in Python scripting.
• Experience in test automation and integration, including developing test plans, procedures, and performing software integration testing for avionics systems.
• Familiarity with test management, defect tracking, and requirements management tools.
• Ability to interpret requirements, create test cases, and analyze test results.
• Strong communication, analytical, and problem‑solving skills.

• Full life‑cycle software development experience, from requirements through integration and testing.
• Experience leading local and offshore software development and verification teams.
• Working knowledge of GNSS navigation products and GNSS simulators.
• Knowledge of ARINC 429, DO‑330, and DO‑178C.
• Experience with timing analysis, memory and stack usage analysis, and structural coverage.
• Experience using LDRA or Vector Cast for structural coverage analysis.
• Working knowledge of SVN and Atlassian tools (e.g. Jira, Jama).

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

USD 107,500 – 204,500 (annual). Salary is a good faith estimate representative of all experience levels.

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, 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.