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@harryzhang
Senior Full Stack Developer specializing in scalable backend systems and high-performance frontends.
I am a Senior Full Stack Developer with extensive experience building scalable backend services and high-performance UIs using Node.js, NestJS, React, and Next.js. I design and optimize cloud-native systems on AWS/Azure, implement event-driven microservices, and deliver measurable improvements in latency, throughput, and conversion rates.
My work includes architecting Kubernetes/EKS deployments, automating infrastructure with Terraform, integrating observability with Datadog/Sentry/Prometheus, and applying ML/AI solutions for real-time transcription and meeting summarization. I mentor engineers, lead cross-functional teams, and drive CI/CD and test automation to achieve resilient, low-latency production systems.
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Work history, roles, and key accomplishments
Developed low-latency video/audio streaming and refactored Node/NestJS APIs to reduce global latency by 25% and median API latency from 300ms to 120ms; architected Kubernetes-based microservices and automated Terraform CI/CD to support 50K+ concurrent users.
FactSet
Apr 2017 - Sep 2021 (4 years 5 months)
Modernized high-performance web apps and headless e-commerce using Next.js and Django REST, reducing API response times by 35% and page load times by 40% while achieving 99.99% uptime with Terraform-managed AWS infrastructure.
JPMorgan Chase
Jun 2013 - Mar 2017 (3 years 9 months)
Delivered a React/Node marketplace generating $50K+ monthly and modernized TypeScript/NestJS backends with AWS serverless and Kubernetes autoscaling to reduce API latency by 60% and support 10x traffic spikes.
Degrees, certifications, and relevant coursework
Bachelor of Science, Computer Engineering
2010 - 2014
Grade: Cum Laude
Completed a Bachelor of Science in Computer Engineering, graduating Cum Laude with a focus on software and systems engineering.
Software and tools used professionally
GitHub
Kubernetes
AWS CodePipeline
Jenkins
GitHub Actions
React Native
MySQL
PostgreSQL
MongoDB
Shopify
Saleor
Gmail
Node.js
Django
Next.js
NestJS
Material-UI
OpenGL
Redis
Terraform
Jira
WebGL
JavaScript
Kafka
RabbitMQ
MSMQ
Django REST framework
MongoDB Atlas
Grafana
Prometheus
iOS
Datadog
GraphQL
Elasticsearch
Strapi
Serverless
JUnit
WebRTC
Root Cause
Medusa
Groq
Vendure
Enhance
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