Amazon is seeking an Application Engineer with strong system design skills to join our Checkout Engineering team in Austin, TX. This role will focus on two key areas: (1) payment systems across all Whole Foods Market (WFM) stores globally, and (2) Point-of-Sale (POS) software globally.

The ideal candidate will own the "how" of delivering robust, scalable solutions, while contributing significantly to the "what" of our payment and POS systems. You will be the technical driving force behind implementation strategies and best practices, playing a key role in shaping the design and development of these critical systems.

Key job responsibilities
- Lead technical design discussions that impact payment and POS systems.
- Implement critical components of payment and POS systems.
- Create design specifications for complex integration between Checkout systems, internal boundary systems, and vendor systems.
- Establish patterns for automated testing strategies and monitoring solutions.
- Develop automated alerting systems based on log analysis, with the ability to identify both present and absent critical data elements in payment flows.
- Collaborate with cross-functional teams to ensure designs meet business requirements.
- Review and provide guidance on technical designs and implementations.
- Lead and drive resolution of highly complex production issues.
- Lead retrospectives and author Corrections of Error (COEs).
- Drive systematic improvements to product/system performance and availability.
- Proactively identify and execute opportunities to improve operations.
- Detect trends and define proactive solutions before problems occur.
- Break down complex problems into actionable solutions that can be worked in parallel.
- Author and review technical documentation.
- Exhibit excellent problem-solving and analytical skills.

A day in the life
- Review incident reports and address critical issues that occurred during off-hours.
- Analyze system metrics to identify potential bottlenecks and areas for enhancement.
- Support critical POS functions while progressing high-priority items.
- Troubleshoot issues and collaborate with vendors and cross-functional teams.
- Participate in standups including support retrospectives and design reviews for new architecture solutions.
- Collaborate with product managers on upcoming feature releases, discussing their potential impact on system stability and how to mitigate any risks
- Participate or lead architecture discussions shaping the systems design and functionality.

About the team
We are responsible for in-store payment and POS systems across all WFM locations (US, Canada, and UK). We collaborate with payment providers, POS vendors, and internal teams across WFM and Amazon to enable new features, improve performance and uptime, and resolve critical break/fix issue. Our mission is to deliver reliable, secure payment solutions and POS operations that power over a million in-store transactions daily.