Xiaotong Diao
Santa Clara
Summary
Backend software engineering professional with proven track record in developing robust and scalable web applications on large-scale distributed system. Demonstrated success in designing and implementing effective software solutions, contributing to multiple high-impact projects for Amazon Music visual search experience and Alexa voice search experience. Proven ability to leverage coding skills and problem-solving capabilities to enhance team productivity and drive results.
Overview
6
6
years of professional experience
Work History
Software Development Engineer II
Amazon.com, Inc.
12.2022 - Current
- Proposed and implemented multi-thread business event batching system utilizing bin-packing algorithm to reduce event processing cost by 1M.
- Worked as a key contributor for entity-based music search suggestions experience. Designed and implemented key component for result retrieval and ranking. Decreased customer time-to-success metrics by about 5%
- Lead projects for improving Alexa voice search quality by proposing and implementing multiple strategies. Improved voice search playback rate by about 3% in total measured by A/B experiment analysis.
- Mentored junior developers by providing guidance on best practices, coding techniques, and problem-solving skills..
- Reduced service latency by 10% by proposing and implementing response compression.
Software Development Engineer I
Amazon.com, Inc.
07.2020 - 12.2022
- Improved testing robustness by developing a test case pre-fetching feature for e2e testing in java, which helped preventing CI/CD flaky test failure and reduced debug time caused by dependency services.
- Designed and developed shadow testing tool for text search service to do quality testing and analysis before feature launch.
- Designed and developed dynamic configuration system based on AWS AppConfig, successfully saved visual search availability during dependency outage.
- Contributed to several feature migration projects(migrate features from legacy service to micro services), got working knowledge for integration/e2e testing, A/B testing, logging, metrics and monitoring, chaos testing, and production level best practices.
Software Developer Intern
SAP America, Inc
05.2019 - 08.2019
- Deployed various tools and automated tests to a Kubernetes cluster with Docker, Kubernetes, and Helm chart, which contributed to CI/CD pipeline.
- Developed product UI connected to REST API with Angular 7. Contributed global and local error handling, services design and implementation, pipe design and built, integration with d3 chord diagram, animation, and cluster micro frontend deployment on Kyma.
Education
Master of Science - Computer Science
University of Colorado Boulder
Boulder, CO05-2020
Bachelor of Science - Computer Science
East China Normal University, China
Shanghai06-2018
Skills
- Object-oriented programming
- API development
- Backend development
- Java
Timeline
Software Development Engineer II
Amazon.com, Inc.
12.2022 - Current
Software Development Engineer I
Amazon.com, Inc.
07.2020 - 12.2022
Software Developer Intern
SAP America, Inc
05.2019 - 08.2019
Master of Science - Computer Science
University of Colorado Boulder
Bachelor of Science - Computer Science
East China Normal University, China
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