Senior Avionics Software Engineer - GNSS (ONSITE)

Date Posted: 2026-06-18 Country: United States of America Location: US-FL-MELBOURNE-312 ~ 795 W Nasa Blvd ~ BLDG 312 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Must be authorized to work in the U.S. without the company’s immigration sponsorship now or in the future. The company will not offer immigration sponsorship for this position. The company will not seek an export authorization for this role. Security Clearance Type: None/Not Required Security Clearance Status: Not Required At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. Collins Aerospace is seeking a Senior Global Navigation Satellite System (GNSS) Software Engineer to support the development, integration, and verification of advanced avionics and Positioning, Navigation, and Timing (PNT) software. This 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. What You Will Do: 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. What You Will Learn: 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. Qualifications You Must Have: Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience Must be authorized to work in the U.S. without the company’s immigration sponsorship now or in the future. The company will not offer immigration sponsorship for this position. The company will not seek an export authorization for this role Experience with embedded C/C++ software development and proficiency in Python scripting are required. 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. Qualifications We Prefer: Full life‑cycle software development experience, from requirements through integration and testing. 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). What we offer: Medical, dental, and vision insurance Three weeks of vacation for newly hired employees 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! Learn More & Apply Now! Avionics delivers advanced cockpit displays, vision systems, and comprehensive digital solutions for global government, commercial and business aviation customers. We provide connectivity and managed data services to ensure safety and seamless communication for passengers, crews, and militaries, from aircraft and airports to air traffic management. Join us in creating solutions that connect the world, one flight at a time. Start your application today. Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. Regardless of your role type, collaboration and innovation are critical to our business and all employees will have access to digital tools so they can work with colleagues around the world – and access to Collins sites when their work requires in-person meetings. At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again. Apply now and be part of the team that’s redefining aerospace, every day. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. 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 or 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.