Senior Software Engineer – Navigation Software (ONSITE)

RTX; Melbourne (FL); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical insurance

Three weeks vacation

401(k) plan

Tuition reimbursement

Student Loan Repayment

Job summary

RTX Collins Aerospace in Melbourne, FL is seeking a Senior Software Engineer to develop and integrate NAV software modules that interface with the Collins FMS for commercial transport aircraft. You will design, implement, and validate navigation software in ADA, C++, C, and Python within safety-critical processes.

You will work across requirements, unit tests, flight-test support, DO-178C compliance, and collaboration with systems, verification, and certification teams.

Qualifications

• 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.
• Real-time embedded software experience is required.
• Proficiency in C++, C, and Python.

Responsibilities

• Design, implement, integrate, and maintain NAV software modules that provide navigation data to the Collins FMS.
• Develop software in ADA, C++, C, and Python following safety-critical development standards.
• Analyze system and software requirements, including NAV-to-FMS ICDs.
• Participate in flight-test operations, lab testing, and simulation runs to evaluate system performance under real-world and mission-critical conditions.
• Implement navigation algorithms, data handling, and integrity monitoring logic.
• Implement and support AI-assisted onboard features such as intelligent sensor fusion, anomaly detection, and autonomous control logic.
• Support requirements traceability in Jama or DOORS.
• Conduct unit and integration testing and debugging.
• Support verification and validation activities per DO-178C.
• Participate in peer reviews, design reviews, and code inspections.
• Collaborate with systems, verification, and certification teams.

Skills

Real-time embedded software experience

Proficiency in C++

Proficiency in C

Proficiency in Python

Education

STEM degree

Advanced degree

Tools

ADA

Git

Jira

Confluence

Jama

SVN

CI/CD tools

Job description

Date Posted: 2026-10-27 Country: United States of America Location: US-FL-MELBOURNE-313 ~ 1344 S Babcock St ~ BLDG 313 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The company will offer immigration sponsorship for this position, if needed. 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. Our navigation software team is looking for a Senior Software Engineer to serve as a seasoned individual contributor responsible for the development and integration of Navigation (NAV) software modules that interface with a Collins Flight Management System (FMS) for commercial transport aircraft.

What you will do:

• Design, implement, integrate, and maintain NAV software modules that provide navigation data to the Collins FMS.
• Develop software in ADA, C++, C, and Python following safety-critical development standards.
• Analyze system and software requirements, including NAV-to-FMS ICDs.
• Participate in flight-test operations, lab testing, and simulation runs to evaluate system performance under real-world and mission-critical conditions.
• Implement navigation algorithms, data handling, and integrity monitoring logic.
• Implement and support AI-assisted onboard features such as intelligent sensor fusion, anomaly detection, and autonomous control logic.
• Support requirements traceability in Jama or DOORS.
• Conduct unit and integration testing and debugging.
• Support verification and validation activities per DO-178C.
• Participate in peer reviews, design reviews, and code inspections.
• Collaborate with systems, verification, and certification teams.

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.
• Real-time embedded software experience is required.
• Proficiency in C++, C, and Python.
• Experience across multiple phases of the software lifecycle.
• Familiarity with Git, Jira, Confluence, Jama, SVN and CI/CD tools.

Qualifications we prefer:

• DO-178B/C experience (DAL B preferred).
• Knowledge of avionics navigation and FMS-integrated systems.
• Experience with ICD-driven development.
• Familiarity with ARINC 429 or ARINC 664.
• Strong communication skills.
• Experience with ADA.

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.
• Carrot Health to hormonal health, fertility, and family building.
• 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!

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.

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.

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.

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. 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.