Sr. Software Development Engineer, Device OS
Amazon Lab126 is an inventive research and development company that designs and engineers high‑profile consumer electronics. Lab126 began in 2004 as a subsidiary of Amazon.com, Inc., originally creating the best‑selling Kindle family of products. Since then, Lab126 has produced groundbreaking devices like Fire tablets, Fire TV, Amazon Echo, and Dash Button.
The Device OS team is a big part of creating these innovative devices at Lab126 providing the core OS, platform, features and components.
In the Device OS group, we are inventing the future for consumer electronics and are looking for a software development engineer to help us bring the vision into reality and solve real world challenges that will transform our customers’ experiences in ways we can’t even imagine yet.
The team develops scalable cloud solutions that enable our partners to quickly build and launch devices in a cost‑effective way.
If you love to be hands‑on designing and implementing quality platform for our consumer electronic devices while working with a world‑class, highly accomplished team, we would love to talk with you.
As a Senior Software Development Engineer, you will lead the technical aspects of core Device customer experience and engage with an experienced cross‑disciplinary staff to design, implement and bring to market innovative consumer products. You must be responsive, flexible and able to succeed within an open collaborative peer environment.
Key job responsibilities

Lead the technical aspects of core Device customer experience and collaborate with cross‑disciplinary staff to design, implement, and ship innovative consumer products.
Create innovative Embedded solutions enabling new or unique experiences for our customers with a wide range of Amazon Devices.
Design, develop, and support middleware and cloud services, working closely with Product Management to detail out requirements and resolve ambiguities.
Own the quality of your own work (code/design) and mentor junior members to maintain or exceed quality standards.
Provide technical consultation across organizations, find innovative ways to solve customer needs, and address technical challenges unique to devices.
Ensure the highest level of quality for the Device OS deliverables in collaboration with Platform and application teams.

Basic Qualifications

8+ years of non‑internship professional software development experience.
8+ years of leading design or architecture (design patterns, reliability, and scaling) of new and existing systems.
Experience as a mentor, tech lead, or leading an engineering team.
7+ years of experience in the multimedia domain, hands‑on with audio, video codecs, and streaming technologies.
8+ years of experience in C++ programming language and OS middleware.
Strong debugging skills to navigate and root cause across multi‑component systems.

Preferred Qualifications

8+ years of full software development life cycle experience, including coding standards, code reviews, source control management, build processes, testing, and operations.
Bachelor’s degree in computer science or equivalent.
In‑depth knowledge and working experience in OS middleware and multimedia tech stack.
Experience optimizing the tech stack for performance, memory, and other resources.
Hands‑on experience with various codecs (audio and video) and handling AV sync issues.

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