# Cecile (Chang) Yang > Software Engineer@DoorDash | Ex-Amazon | Investor Location: San Francisco Bay Area, United States Profile: https://flows.cv/cecile ## Work Experience ### Software Engineer @ DoorDash Jan 2024 – Present ### Co-Founder @ Breadtree Jan 2023 – Jan 2023 | San Francisco Bay Area • Built a one-stop shop prototype for household finance targeting families with young children. Key features were to help customers determine the probabilities of achieving their financial goals and make investment recommendations accordingly. • Established a continuous feedback loop with early adopters, , refining product features and user experience in line with evolving customer needs and software development trends. • Interviewed in Y-Combinator W24 batch. ### Investor & Member @ Sand Hill Angels Jan 2023 – Jan 2023 | Mountain View, California, United States ### Software Development Engineer @ Amazon Web Services (AWS) Jan 2022 – Jan 2023 | Santa Clara, California, United States Key software development contributor of AWS new EC2 product forecast platform. ### Software Development Engineer @ Amazon Jan 2020 – Jan 2022 | Toronto, Ontario, Canada • Designed and built a data lake to ingest labor scheduling data from various sources into a systematic format. Cross functional teams utilize this data lake to better forecast labor capacity and validate labor data fidelity, resulting in labor efficiency improvement. The data lake utilizes AWS CDK to orchestrate the infrastructure components of AWS services such as S3, Lambda, ECS, etc. • Developed and maintained highly scalable scheduling software used to manage Amazon fulfillment operations globally. This scheduling software successfully supported 80% of Amazon warehouse labor increase due to pandemic in 2020. ### Software Engineer @ ByteDance Jan 2017 – Jan 2018 | Beijing City, China Led the development of internal procurement center software system. ## Education ### LEAD Executive Education Stanford University Graduate School of Business Jan 2022 – Jan 2023 ### Master's degree in Computer Science Georgia Institute of Technology Jan 2019 – Jan 2021 ### University of Waterloo ## Contact & Social - LinkedIn: https://linkedin.com/in/cecile-chang-yang-aa701358 - GitHub: https://github.com/carqy2 --- Source: https://flows.cv/cecile JSON Resume: https://flows.cv/cecile/resume.json Last updated: 2026-03-22