william chang
@williamchang1
Senior Software Engineer with 10+ years of experience in scalable systems.
What I'm looking for
As a Senior Software Engineer with over a decade of experience, I have honed my skills in building scalable, high-performance systems across various domains, including eCommerce and AI-driven healthcare. My journey has been marked by significant contributions at leading companies like Amazon and Walmart, where I have led the design and implementation of innovative solutions that drive efficiency and enhance user experience.
At Amazon, I developed secure, low-latency APIs and architected real-time AI Voice Agency solutions, leveraging cutting-edge technologies such as WebRTC, Kafka, and gRPC. My role involved mentoring cross-functional teams and optimizing UX latency, ensuring that our systems not only met but exceeded industry standards. Similarly, at Walmart, I played a pivotal role in enhancing the global e-commerce platform, focusing on modular front-end development and backend service frameworks that improved performance and accessibility for millions of users.
My passion for clean code and performance optimization drives me to continuously seek out new challenges and opportunities for growth. I am committed to mentoring the next generation of engineers and contributing to projects that make a meaningful impact in the tech landscape.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Amazon
Oct 2018 - Present (6 years 9 months)
Developed secure, low-latency APIs and inference pipelines using Go, Python, and FastAPI, with support for streaming ASR and real-time summarization delivery via WebSockets and Redis. Architected end-to-end real-time AI Voice Agency using WebRTC, Twilio Voice, gRPC, and Kafka, enabling passive recording of clinical consultations across mobile, web, and EHR-embedded platforms.
Full Stack Developer
Walmart
Oct 2014 - Present (10 years 9 months)
Developed modular, high-performance front ends using React, Redux, JavaScript, and Material-UI, optimizing for accessibility and performance across devices. Led engineering initiatives for Walmart’s global e-commerce platform serving over 100 million active users, designing resilient, high-throughput microservices.
Education
Degrees, certifications, and relevant coursework
University of Texas at Austin
Bachelor's Degree, Computer
Obtained a Bachelor's Degree in Computer from the University of Texas at Austin. The curriculum provided a strong foundation in computer science principles and practices.
Tech stack
Software and tools used professionally
Airbyte
Redash
Superset
GitHub
Bitbucket
Kubernetes
Jenkins
CircleCI
React Native
dbt
dat
MySQL
PostgreSQL
MongoDB
SQLite
Memcached
Gmail
InVision
Node.js
Django
Laravel
.NET Core
Next.js
.NET
Tailwind CSS
Material-UI
Semantic UI
Mixpanel
Figma
Redis
Jira
Babel
Webpack
JavaScript
Java
PHP
UI Bakery
TensorFlow
PyTorch
MLflow
DeepSpeed
Kafka
FastAPI
Grafana
Kibana
Prometheus
OpenTelemetry
New Relic
Datadog
GraphQL
Firebase
gRPC
Elasticsearch
Kafka Streams
OAuth2
Twilio
WebRTC
NGINX
Zapier
Balsamiq
UXPin
Time Analytics
Mapped
MobX
Hotjar
Availability
Location
Authorized to work in
Job categories
Skills
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