Amazon Leo is seeking a Software Development Engineer to help build and maintain the software that powers in-flight connectivity for commercial airlines. You will contribute to the Leo Aviation Solution, the software platform that runs aboard aircraft, managing cabin Wi-Fi networks, satellite connectivity, over-the-air software updates, and operational services for passengers, crew, and airlines simultaneously.

This is a hands-on engineering role with real impact. The Leo Aviation Solution is early in its development, which means you will write production code that ships on aircraft and runs across a growing fleet. You will implement features and modules within the platform, working closely with senior engineers who set the architectural direction. You will grow your scope over time as you build depth in the system and the domain. Sound engineering fundamentals, a bias for writing tested and maintainable code, and a willingness to learn a new and demanding problem space matter more than prior aviation experience.

The platform spans a technically demanding stack: containerized software running on embedded aircraft hardware; a multi-segment cabin network managing VLAN-based traffic prioritization across passenger, crew, and airline operational services; satellite uplink quality-of-service scheduling; cryptographically validated over-the-air software deployments; and a security infrastructure designed to protect certified airborne systems.

The team brings together engineers from avionics and embedded systems, enterprise networking, distributed cloud infrastructure, and aviation certification. You will learn from engineers with backgrounds ranging from embedded software to large-scale distributed systems, and you will be supported with mentorship as you develop into a stronger, more well-rounded engineer.

Export Control Requirement:

Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.

Key job responsibilities
• Implement and maintain features and modules within the Leo Aviation Solution - cabin network management, software and configuration lifecycle, connectivity monitoring, and observability - taking components from implementation through production deployment under the guidance of senior engineers.
• Write production-quality software for certified embedded environments, meeting DO-178C Level E standards.
• Contribute to the over-the-air software lifecycle pipeline - cryptographic validation, staged activation, automatic rollback, and version reporting to ground-side fleet systems.
• Contribute to observability infrastructure - health endpoints, telemetry collection, built-in test execution, and the ground-side data pipeline for fleet monitoring.
• Implement software against interface definitions and Architecture Decision Records defined with senior engineers, raising questions and edge cases that affect cross-workstream alignment.
• Write and execute DO-178C-aligned tests, including unit, integration, and requirements-based tests across cabin platforms.
• Integrate software across cabin hardware platforms, working within the hardware abstraction layers that keep the codebase portable.
• Participate in code reviews and design discussions, and grow your knowledge of aviation-grade development practices.

About the team

Amazon Leo is building technology that most engineers have never encountered. Our team brings together engineers from avionics and embedded systems, enterprise networking, distributed cloud infrastructure, and aviation certification. Our team includes engineers with backgrounds ranging from embedded software to large-scale distributed systems - and we value the full range of that experience.

We are continuously raising our performance bar as we strive to become Earth's Best Employer. You will find extensive knowledge-sharing, mentorship, and career-advancing resources here to help you develop into a better-rounded technical leader.

BASIC QUALIFICATIONS

- 3+ years of non-internship professional software development experience

- 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience

- 1+ years of software development engineer or related occupational experience

- 1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl experience

- 1+ years of Object Oriented Design experience

- Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field

- Experience programming with at least one software programming language

PREFERRED QUALIFICATIONS

- 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience

- Experience with virtualization (Hypervisors, VMware, Xen), or experience in Kubernetes, Docker or containers ecosystem and experience in software development

- Experience in Linux and Networking protocols, or experience with programming/scripting (Batch, VB, PowerShell, Java, C#, Chef, Perl, Ruby and/or PHP) and experience in Linux OS and network troubleshooting

- Experience in the application of network design, including knowledge of major routing protocols, topology design, network hardware, device configuration, and traffic engineering

- Experience in application security architecture, security code reviews, security testing, incident response, or security infrastructure

- Experience in aviation, aerospace, or other safety-adjacent embedded software development, including familiarity with the DO-178C Level E software development lifecycle

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits.

USA, WA, Redmond - 143,700.00 - 194,400.00 USD annually