Senior Software Engineer · 15+ Years

Song (Amay) Zheng

Building cross-platform, user-facing products that scale

Amazon · PayPal · Google · American Express · UCLA CS

Scroll

Engineer. Builder. Dad.

15+ years shipping products at scale — from Google Analytics to AWS infrastructure. I care deeply about craft, performance, and the people using what I build.

Scale & Performance

Built platforms touching 200+ AWS service consoles globally and merchant tools onboarding 2,000+ partners across 3 continents.

🎨

Frontend Craft

From reusable D3.js visualization libraries at Google to pixel-perfect responsive UIs — I sweat the details that users feel but can't always name.

🔭

Full-Stack Depth

Beyond the UI: Node.js, Java microservices, AWS infrastructure (CDK, CloudFormation), real-time data pipelines with Kafka, and cloud-native deployments.

🤝

Cross-Team Impact

Led migrations coordinating 40+ AWS service teams, drove open-source initiatives at TokBox, and partnered across orgs to ship zero-downtime infrastructure changes.

What I Work With

A pragmatic, full-stack toolkit honed across 15+ years and six companies.

Frontend & UI

React Redux TypeScript JavaScript D3.js WebView Responsive Design

Build & Delivery

Webpack Vite SSR Lazy Loading CDN Strategy CI/CD

Backend & APIs

Node.js Java REST GraphQL Microservices Kafka

Cloud & Infra

AWS CDK CloudFormation Serverless Docker

Data & Storage

PostgreSQL MySQL DynamoDB Redis Elasticsearch

Observability

Kibana CloudWatch

Where I've Shipped

15 years across startups, fintech, big tech, and cloud infrastructure.

Amazon / AWS
Senior Software Engineer — Platform Infrastructure
2022 – 2025
  • Global Service Configuration Platform: Designed and built the entire React UI for a centralized management tool serving all 200+ AWS service consoles across every AWS region (including China & Gov).
  • Zero-downtime CDN migration: Led migration of all console frontend assets from cloudfront.net to amazon.aws for 200+ consoles, coordinating 40+ teams across diverse build pipelines and multi-region deployments.
  • Tier-1 On-call: Led rapid-response task forces debugging distributed systems failures across multiple AWS service teams.
PayPal
Senior Software Engineer — Merchant Org
2019 – 2021
  • Campaign Manager UI: Led all frontend development for a merchant marketing platform onboarding 2,000+ partners across 3 continents, with WebView mobile integration.
  • PayPal Shopping Portal: Built the consumer-facing shopping experience on web and mobile, focused on content discovery and relevance.
Google
Senior Frontend Engineer — Google Analytics
2016 – 2017
  • Real-time Streamview Maps: Built an interactive Google Maps visualization showing live global app usage — geospatial data meets live analytics.
  • Core D3.js libraries: Designed and shipped reusable charting components adopted across multiple Google product teams.
  • Device analytics UI: Built a cards-based interface surfacing mobile device attributes to developers.
American Express
Senior Frontend Engineer — Big Data
2014 – 2016
  • Data Atlas Portal: Built the UI to search, filter, and visualize feeds from a massive internal data lake.
  • Compliance pipeline UI: Created interfaces for data access requests and real-time progress dashboards.
TokBox
Developer Advocate — Real-Time Video SDK
2012 – 2014
  • Cross-platform WebRTC: Built iOS/Android plugins for real-time video/audio, ensuring consistent cross-platform experiences.
  • Open source lead: Managed all company OSS projects; built a WebRTC demo that ranked #1 on Google for "webrtc demo" for a decade.
Facebook / Meta
Frontend Engineering Intern — Facebook Timeline
2011

When I'm Not Shipping

The best engineers I know have rich lives outside the terminal. Here's what fills mine.

🫧

Giant Bubbles

Mixing the perfect bubble solution and watching kids chase bubbles the size of cars. Pure joy.

🎤

Karaoke Dad

Belting out hits with my kids — slightly off-key, always memorable, zero regrets.

🧸

Custom Toys

Building one-of-a-kind toys tailored to what my kids are into right now. Engineer brain, parent heart.

📖

AI Storybooks

Co-authoring personalized children's books with Claude — my kids are always the heroes of the story.

👨‍👧‍👦

Present Parent

Playing, exploring, and goofing around with my kids is the best part of any day.

Let's Connect

Open to interesting engineering challenges, collaboration, or just a good conversation about tech (or bubbles).

Say Hello →