# Stacey Chao > Former Software Engineer at Amazon specializing in backend solutions. Location: San Francisco Bay Area, United States Profile: https://flows.cv/staceychao With 5+ years of experience in software engineering, I specialize in building scalable backend systems and driving feature innovation. At Amazon, I helped power AmazonFresh and Whole Foods by designing critical services used by millions of customers daily. I’m motivated by solving complex technical challenges, delivering impactful solutions, and collaborating across teams to drive business goals. I also have experience in frontend web development using React and TypeScript. Outside of work, I'm passionate about mentoring and educating younger students in coding, especially through programs focused on broadening access to computer science. In my free time, you can find me reading or enjoying a quiet moment with a good playlist. ## Work Experience ### Software Engineer @ Amazon Jan 2019 – Jan 2025 | San Francisco Bay Area I successfully designed and implemented critical backend solutions that enhanced service reliability and customer satisfaction. • Designed and implemented a new feature for Amazon Grocery that enabled post-order modifications. I engineered backend payment processing systems to support real-time charge adjustments and developed the corresponding frontend UX flow, resulting in a $17M reduction in global order cancellations. • Developed a flexible auto-cancellation configuration service for regional, programmatic, and store-level control. The new service streamlined recovery workflows and reduced lost grocery inventory by ~$5M. • Oversaw the launch of a buy online, pickup in store clothes shopping program built on my team’s platform for order management and fulfillment, which led to the streamlined user experience for over 1M+ customers. • Developed a flexible auto-cancellation service, reducing lost grocery inventory by approximately $5M. • Resolved a launch-blocking bug affecting 3% of third-party grocery orders globally, which saved the program ~$1M in tax-related costs. • Implemented an end-to-end ETL pipeline that ingested and published daily order cancellation data to a RedShift database. The pipeline gave product managers and data analysts visibility into customer behavior that would shape future initiatives to reduce cancellations and increase customer retention. ### SDE Intern @ Audible, Inc. Jan 2018 – Jan 2018 | Newark, New Jersey • Developed an admin feature for an internal tool, enabling business users to manage audiobook metadata independently, reducing operational requests by 10%. • Transformed existing pipelines into CI/CD processes, effectively doubling test coverage and adding eight integration tests. • Introduced logging and scanning workflows for automated deployments, enhancing overall efficiency and reliability. ### Teaching Assistant @ Northwestern University, Department of Electrical Engineering and Computer Science Jan 2017 – Jan 2018 I effectively supported students in mastering programming concepts while enhancing my teaching and organizational skills. • Led weekly discussions and office hours, directly impacting over 100 students' understanding of programming. • Graded assignments and exams, delivering constructive feedback to help students improve their skills. • Collaborated with faculty to refine course content, ensuring alignment with educational objectives. ### Software Engineer Internship @ Nima Labs Jan 2017 – Jan 2017 | San Francisco Bay Area • Designed and deployed a PostgreSQL sales database on Amazon RDS to enhance sales analysis for a portable allergen sensor. • Developed a Tableau dashboard using Python and SQL to visualize key sales metrics, improving decision-making. • Automated daily updates of the sales database with an AWS Lambda function, ensuring data accuracy and timeliness. • Presented actionable insights to the executive team, leading to improved metrics in board updates. ### Research Intern @ UCLA Computer Science Department, Center for Smart Health Jan 2016 – Jan 2016 • Developed a graph activity feature for an asthma health evaluation Android application in AndroidStudio • Tested for speed and accuracy of several wireless environmental sensors used for the application ## Education ### Bachelor of Science - BS in Computer Science Northwestern University Jan 2015 – Jan 2019 ### The Harker School Jan 2011 – Jan 2015 ## Contact & Social - LinkedIn: https://linkedin.com/in/stacey-chao --- Source: https://flows.cv/staceychao JSON Resume: https://flows.cv/staceychao/resume.json Last updated: 2026-03-22