Haotian Wu
Senior Software Development Engineer at Amazon Web Services (AWS)
Kirkland, Washington, United States
Summary
👤
Senior🎓
Top SchoolHaotian Wu is a Senior Software Development Engineer at AWS with eight years building observability and tracing systems, currently leading work on AWS Application Signals—AWS’s new APM solution launched at re:Invent 2023. He has deep hands-on experience in distributed tracing from long-term contributions to AWS X-Ray and its popular open-source SDKs for Python and Node.js, where he implemented core recorder behaviors, Lambda integrations, and CI/release improvements. Based in Kirkland, WA, Haotian blends back-end engineering with DevOps sensibilities to ship reliable telemetry features that help customers monitor application health at scale. He holds a Master’s in Electrical and Computer Engineering from Cornell and brings a pragmatic, bug-focused approach that has improved sampling, HTTP capture, and context management in production tracing stacks.
8 years of coding experience
9 years of employment as a software developer
Bachelor’s Degree, Electrical Engineering, 3.7, Bachelor’s Degree, Electrical Engineering, 3.7 at Chongqing University of TechnologyMaster’s Degree, Electrical and Computer Engineering, 3.3, Master’s Degree, Electrical and Computer Engineering, 3.3 at Cornell University
English, Chinese
Github Skills (14)
aws-xray10
javascript10
nodejs10
sdk10
sinon10
python10
chai10
testing10
cicd9
travis-ci9
context-api9
context-manager9
aws-lambda9
http8
Programming languages (6)
Github contributions (5)
aws/aws-xray-sdk-python
Oct 2017 - Oct 2018
AWS X-Ray SDK for the Python programming language
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 releases, 34 commits, 48 PRs in 1 year
Contributions summary:Haotian primarily contributed to the AWS X-Ray SDK for Python, focusing on core functionalities such as the recorder and its configurations. Their work included implementing and modifying the recorder's behavior, including segment and subsegment creation, and integrating with different tracing environments like AWS Lambda. They also addressed bug fixes, enhanced the SDK's capabilities through features like context management, and implemented new features.
python-programmingraypythonsdkaws
aws/aws-xray-sdk-node
Nov 2017 - Jul 2019
The official AWS X-Ray SDK for Node.js.
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:22 commits, 35 PRs, 45 pushes in 1 year 8 months
Contributions summary:Haotian's contributions primarily focused on bug fixes, enhancements, and release preparation for the AWS X-Ray SDK for Node.js. They addressed issues in path-based sampling, HTTP capture, and Lambda logging, suggesting a deep understanding of the SDK's core functionalities. Additionally, the user added Travis CI integration and prepared for a new release, indicating involvement in the project's build and deployment processes.
raynode-jsjavascriptsdknodejs
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