Jianchao X.
AI Full-Stack Developer | Saas | Chrome Extension | Ex-Alibaba
Top Rated Full-Stack Developer | Ex-Alibaba Engineer I help startups build modern SaaS products, AI-powered web apps, and Chrome extensions using Next.js, TypeScript and Node.js. Before freelancing, I worked for 6+ years at Alibaba building large-scale web platforms used by millions of users. On Upwork I’ve delivered: – SaaS dashboards and internal tools – AI-powered web applications – Chrome extensions integrated with web platforms – MVPs for startups Recent work includes: – Chrome extension + web application for workflow automation – AI-powered job analysis and proposal generation tool – Education platform built with Next.js – OCR web application using Tesseract.js Tech stack: Next.js / React / TypeScript / NestJS / PostgreSQL / Supabase Clients appreciate my ability to combine strong engineering execution with product thinking — helping teams move fast while keeping systems maintainable. If you're building a SaaS product, AI web application, or Chrome extension, feel free to reach out. ------ Specialties: – SaaS product development – Chrome extension development – AI-powered web applications – Startup MVP development
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $535
Billed in all: $19,353$19k
$267 in the last 6 months
Across 3 contracts
Across 26 contracts
Earnings, last 30 days
Skill rankings: Top 28% in JavaScript
Ranked by MRR among everyone on Upwork with the skill.
- #198Google Chrome Extension660 freelancers · 🇨🇳 #3Top 30%🇨🇳#3 of 11
- #273Vercel586 freelancers · 🇨🇳 #1Top 47%🇨🇳#1 of 1
- #1,083NestJS3,757 freelancers · 🇨🇳 #3Top 29%🇨🇳#3 of 9
- #1,978Tailwind CSS6,978 freelancers · 🇨🇳 #4Top 28%🇨🇳#4 of 22
- #2,014Supabase4,116 freelancers · 🇨🇳 #5Top 49%🇨🇳#5 of 11
- #3,989Full-Stack Development9,452 freelancers · 🇨🇳 #10Top 42%🇨🇳#10 of 30
- #4,385PostgreSQL12,850 freelancers · 🇨🇳 #12Top 34%🇨🇳#12 of 34
- #5,024TypeScript15,967 freelancers · 🇨🇳 #15Top 31%🇨🇳#15 of 53