Joyce Liu
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolJoyce Liu is a Software Development Engineer at Amazon/AWS with 11 years of experience building backend services and cloud integrations from Seattle. She has contributed to the widely used aws-sdk-js repository, adding service support, fixing S3 signed URL bugs, and implementing CORS across multiple AWS services—work that reflects deep familiarity with cloud APIs and production-grade SDK maintenance. Earlier in her career she applied strong quantitative skills as an actuarial analyst, automating large-scale VBA workflows and building SQL models that improved loss prediction accuracy and saved hundreds of manual hours. Trained at Hack Reactor and with a BA in Mathematics and Cognitive Sciences from Rice, Joyce blends rigorous analytical thinking with practical software engineering. Colleagues describe her as a pragmatic problem-solver who quietly improves developer experience and reliability in complex distributed systems.
11 years of coding experience
11 years of employment as a software developer
Taipei American SchoolAdvanced Software Engineering Immersive, Advanced Software Engineering Immersive at Hack ReactorBachelor of Arts Mathematics, Cognitive Sciences, Bachelor of Arts Mathematics, Cognitive Sciences at Rice UniversityCasualty Actuarial Society
English, Chinese, Spanish
Github Skills (12)
aws-s310
javascript10
amazon-s310
back-end-development10
s3-bucket10
aws-sdk10
cors9
google-cloud-kms8
iot8
route538
inspector8
devops8
Programming languages (5)
Github contributions (5)
aws/aws-sdk-js
Jan 2016 - Oct 2016
AWS SDK for JavaScript v2 (End-of-Life as of 09/08/2025). The AWS SDK for JavaScript v3 in the browser and Node.js is available here: https://github.com/aws/aws-sdk-js-v3
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:244 commits, 58 PRs, 62 pushes in 9 months
Contributions summary:Joyce primarily contributed to the AWS SDK for JavaScript, fixing bugs related to S3 signed URLs by modifying the code to correctly handle the CacheControl parameter in v4 signers. They added support for new AWS services like ACM, IoT, Inspector, and GameLift by incorporating their respective API functionalities. The user also added CORS support to Route53, KMS, Inspector, StorageGateway, RDS, and DirectConnect, indicating work across multiple AWS service integrations and an understanding of cross-origin resource sharing. They also contributed by adding some tests for various features and correcting some functionalities.
awsaws-sdkaws-sdk-js-v3javascriptnodejs
NaviGames/NaviGames
Oct 2015 - Nov 2015
Contributions:53 commits, 13 PRs, 1 push in 1 month
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