Changhao Yang
Software Development Engineer at Amazon (AI Agents & Benchmarking) | ex-AWS IoT | CMU
- Role
- Software Dev Engineer Ii - Cxbt at Amazon
- Location
- Seattle, WA, US
- LinkedIn followers
- 500 followers
About Changhao Yang
Software Development Engineer at AmazonBuilding AI/ML benchmarking systems for large-scale voice & agent platforms.Focused on speech recognition evaluation, cross-cloud performance analysis, latency optimization, and tool-call reliability in LLM-powered systems.ex-AWS | CMU
Experience
Software Dev Engineer Ii - Cxbt
May 2025 — Present · Seattle, WA, US
Designing cross-cloud benchmarking infrastructure for LLM-powered conversational and voice agents.• Building automated evaluation frameworks to measure ASR accuracy, tool-call reliability, and multi-turn agent performance.• Driving latency analysis and optimization (TTFC, TTFinal, p50/p90/p99) across AWS, Azure, and GCP environments.• Developing custom MCP integrations and large-scale test harnesses to simulate enterprise workloads and validate system behavior under production-like conditions.
Education
Carnegie Mellon University
Master's degree, Electrical and Computer Engineering
2019 — 2020
University of Electronic Science and Technology of China
Bachelor of Engineering - BE, Electronic Information Engineering
2015 — 2019
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