Principal Engineer - Software

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Shape the Future of Aerospace. Engineer What’s Next.

At RTX, the world’s largest aerospace and defense company, approximately 185,000 innovators come together with a shared purpose: solving the world’s most complex challenges and making a meaningful difference. Through our industry-leading businesses, advanced research, and cutting-edge technologies, we are redefining what’s possible in aerospace and defense.

Collins Aerospace, an RTX business, is at the forefront of developing intelligent, technologically advanced solutions that connect and protect our world. Our innovations help shape the future of flight, enhance aircraft capabilities, and enable safer, smarter, and more connected aviation systems.

Are you ready to work on software that powers the future of airborne communication?

We are looking for an experienced Principal Engineer – Avionics Communication & Data Link Systems to join our Airborne Information Solutions Department within the Communication, Navigation, and Surveillance (CNS) division. As part of the End-to-End Communication Team, you will contribute to the development, verification, integration, and certification of advanced avionics communication applications that support reliable, safety-critical airborne connectivity.

This is an opportunity to apply your software engineering expertise to complex aerospace challenges, work with industry-leading avionics standards, and help deliver mission-critical technologies that keep aircraft and the global aviation ecosystem connected.

What You’ll Do

As part of our avionics software engineering team, you will:

• Design and develop advanced avionics software: Contribute to the architecture, development, integration, and verification of airborne communication applications using C, C++, and Python.
• Engineer next-generation data link solutions: Develop and verify applications supporting Controller-Pilot Data Link Communications (CPDLC), Automatic Dependent Surveillance–Contract (ADS-C), ATN Context Management (CM), and FANS ACARS Facilities Notification (AFN).
• Apply industry-leading aviation standards: Implement and maintain compliance with relevant ARINC standards, including ARINC 429, 618, 620, 622, 661, 739, and 615.
• Deliver certification-ready software: Apply DO-178B/C processes and contribute to the development of high-integrity, safety-critical software that meets stringent aviation certification objectives.
• Drive software quality and verification: Perform requirements analysis, verification and validation (V&V), structural coverage analysis (SCA), debugging, troubleshooting, and unit, integration, white-box, and verification testing.
• Enable seamless system integration: Support software-software and hardware-software integration, identify complex system-level issues, and drive effective technical resolutions.
• Support certification and compliance activities: Prepare for and participate in Stages of Involvement (SOI), certification reviews, technical audits, and engagements with internal and external compliance authorities.
• Collaborate across engineering disciplines: Work closely with systems, software, integration, verification, and certification teams to deliver robust, reliable, and high-quality solutions.
• Strengthen engineering excellence: Contribute to requirements management, reliability analysis, risk mitigation, process optimization, and continuous improvement across the software development lifecycle.
• Leverage advanced engineering tools: Use network analyzers, simulation environments, and software development and verification tools to validate performance and troubleshoot complex avionics systems.

What You’ll Bring

Required Qualifications

• Bachelor’s or Master’s degree in Engineering (B.Tech/M.Tech), with a foundation in avionics systems and software architecture.
• 12+ years of avionics software development and verification experience.
• Strong programming proficiency in C or C++ and Python.
• Solid understanding of avionics systems and architectures, including Data Link, Communication, Navigation and Surveillance (CNS), Flight Management Systems (FMS), Flight Control Systems (FCS), and aircraft displays.
• Strong understanding of the Software Development Lifecycle (SDLC), covering requirements analysis, software design, coding, integration, verification, and validation.
• Practical exposure to DO-178B/C processes and safety-critical software development.
• Hands-on experience with V&V, structural coverage analysis, debugging, troubleshooting, and white-box, unit, integration, and verification testing.
• Experience with software development and verification tools such as VectorCAST, PyATE, RapiTest, Git, and Subversion.
• Familiarity with real-time operating systems and network analyzer tools used for communication and performance testing.
• Understanding of Agile methodologies and experience working in an Agile engineering environment.

Preferred Qualifications

• Experience developing, integrating, and certifying large-scale avionics software systems.
• Strong knowledge of safety-critical software architecture, design principles, and development practices.
• Practical experience with airborne communication and data link protocols, including applicable ARINC standards.
• Familiarity with avionics simulation environments and system-level testing.
• Experience supporting formal certification reviews, SOI activities, compliance audits, and certification evidence preparation.
• Ability to analyze complex technical problems, collaborate across engineering disciplines, and drive issues through to resolution.

What You’ll Gain

At Collins Aerospace, your work contributes to technologies that have a direct impact on the future of aviation.

• Meaningful engineering challenges: Work on advanced avionics communication applications that support aircraft connectivity and operational safety.
• Technical depth and innovation: Apply your expertise in embedded software, data link protocols, real-time systems, and safety-critical engineering.
• End-to-end product exposure: Participate across the software lifecycle, from requirements and design through verification, integration, and certification.
• Collaborative engineering: Partner with experienced professionals across software, systems, integration, and certification disciplines.
• Continuous improvement: Contribute ideas that strengthen engineering processes, software quality, and technical excellence.

Why Join Collins Aerospace?

Collins Aerospace, a Raytheon Technologies company, is a global leader in advanced aerospace and defense solutions. Our Avionics business delivers trusted navigation, communication, surveillance, and safety systems used worldwide.

At Collins Aerospace, you will:

• Work alongside industry-leading experts
• Build technologies that protect lives and enable safer aviation
• Grow your career while shaping the future of aerospace innovation

We are redefining aerospace—and you can be part of it.

Work Model Options

• Hybrid: A mix of onsite and remote work

Collaboration and innovation are core to our culture, supported by world-class digital tools and global connectivity.

Benefits Snapshot

• Competitive compensation and comprehensive benefits
• Meal coupons
• Group Life, Health, and Personal Accident Insurance
• 18 days vacation + 12 days contingency leave
• Employee Scholar Program
• Strong work-life balance culture
• Car lease program
• National Pension Scheme (NPS)
• Leave Travel Allowance (LTA)
• Fuel, maintenance, and driver benefits

Additional Information

• Background verification is mandatory for all India hires
• Drug screening required for Operations positions

Apply Now

At Collins Aerospace, the paths we pave together lead to limitless possibilities.

Apply now and help us redefine aerospace—every day.

RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law.  

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