Principal Avionics Software Engineer - GNSS (ONSITE)

Principal Level Global Navigation Satellite System (GNSS) Software EngineerLocation: Melbourne, Florida, United States (Onsite)Position Type: Onsite, U.S. Work Authorization: Must be authorized to work in the U.S. without company immigration sponsorship. Security Clearance: Not Required.What You Will DoDesign, 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.What You Will LearnDevelop 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.Qualifications You Must HaveTypically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.Experience with embedded C/C++ software development and proficiency in Python scripting.Experience in test automation and integration.Strong background in 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.Preferred QualificationsFull 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.Experience with GNSS simulators and scenario development.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 VectorCast for structural coverage analysis.Working knowledge of SVN and Atlassian tools (e.g. Jira, Jama).BenefitsMedical, dental, and vision insurance.Three weeks of vacation for newly hired employees.Generous 401(k) plan with employer matching and separate employer retirement contribution.Tuition reimbursement program.Student loan repayment program.Life insurance and disability coverage.Optional coverages including pet, home, auto, additional life, accident, critical illness, group legal, ID theft protection.Birth, adoption, and parental leave benefits.Ovia Health, fertility, and family planning assistance.Adoption assistance.Autism Benefit.Employee Assistance Plan with up to 10 free counseling sessions.Healthy You Incentives wellness program.Doctor on Demand, virtual doctor visits.Bright Horizons child and elder care services.Teladoc Medical Experts second opinion program.Salary Range107,500USD – 204,500USD.Equal Opportunity EmployerRTX 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. #J-18808-Ljbffr