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Software Development Engineer in Test, DeviceOS
Software Development Engineer in Test, DeviceOS-December 2024
Guadalajara
Dec 4, 2025
ABOUT AMAZON
Our mission is to be the world’s most customer-centric company.
10,000+ employees
Technology
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About Software Development Engineer in Test, DeviceOS

  Description

  This role can sit in either Guadalajara or Mexico City.

  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, we have produced groundbreaking devices like Fire tablets, Fire TV, Amazon Echo and Amazon Show. The Amazon Devices group delivers delightfully unique Amazon experiences, giving customers instant access to everything, digital or physical.

  The Amazon Device OS team is looking for a Software Development Engineer in Test to help build next generation automation tools. In this role you will work with architects, QA engineers, software developers and hardware engineers to enhance/implement test automation and infrastructure development for our next generation of Amazon device which will have a significant impact on our systems, our business and our customers.

  Key job responsibilities

  Our SDETs work directly with both Software Development Engineers and Quality Assurance Engineers to understand project features, review technical designs, and implement automated test tools that help deliver quality features with efficiency. Our SDETs understand customer usage models and are able to develop test plans and test cases that approximate real-world environments and scenarios.

  In this role you will:

  • Lead the design, implementation, and delivery of test solutions using new or existing technologies that test major portions of software (e.g., significant component, set of features, applications or services) for large-scale, critical, and/or highly complex software.

  • Collaborate with development teams and your team peers to identify and prioritize opportunities for automation.

  • Define test metrics. Automate/simplify team development and test processes

  • Ensure work is consistently high quality (e.g., maintainable, reliable, efficient, etc.) and incorporates best practices.

  • Ensure code reviews tend to be rapid and uneventful. Provide useful code reviews for changes submitted by others.

  • Dive deep into our testing methodologies to transform manual quality processes to highly automated quality solutions.

  • Train new teammates about your products’ customers, what your software does, how it is constructed, tested, operated, and how it fits into the bigger picture.

  • Actively participate in the hiring process as well as mentor others - improving their skills, their knowledge of your software, and their ability to get things done.

  A day in the life

  A Software Development Engineer in Test (SDET) is a developer with the primary responsibility of writing frameworks and tools to test products. It is a very unique and challenging role and provides immense opportunity to design and develop wide-reaching tools. It combines the "building" aspect of software design engineering with the "breaking" aspect of software test engineering. You’ll be writing code that automatically verifies the quality of the product. You will be working closely with Product Managers, Sr. Engineers, Quality Engineers, Technical Program Managers, and highly motivated peers. You will collaborate with teams across Amazon on the planning and execution of complex and highly-technical projects with high impact and visibility.

  About the team

  We are looking for a passionate, talented Software Development Engineer in Test (SDET) who can drive key engineering and business decisions that impact Amazon’s long-term vision. In this development role, you will have an opportunity to make a large impact on the design, architecture and quality of cutting edge products used every day, by people you know.

  We are open to hiring candidates to work out of one of the following locations:

  Guadalajara, JAL, MEX | Mexico City, DIF, MEX

  Basic Qualifications

  4+ years of test automation frameworks and tools building experience

  4+ years of non-internship professional software development testing experience

  Experience programming with at least one modern language such as Java, C++, or C# including object-oriented design

  Experience designing or supporting low-maintenance automation frameworks

  Preferred Qualifications

  Knowledge of overall system architecture, scalability, reliability, and performance in a database environment

  Experience debugging, diagnosing, and troubleshooting complex, production software issues

  Strong, object-oriented design and coding skills

  Coding experience with automated testing frameworks, tools, services, and physical devices

  Ability to effectively articulate technical challenges and solutions

  Deal well with ambiguous/undefined problems; ability to think abstractly

  Experience influencing software engineering best practices within your team

  Excellent communication, collaboration, reporting, analytical and problem solving skills

  Experience with open source tools and resources

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