I help companies modernize legacy web apps and ship AI-powered features.
Senior full-stack developer with 7+ years of experience. Architecture decisions tested in production, not just in tutorials.
7+
Years in production
0
Downtime on migrations
85%
AI auto-resolution rate
5
Live interactive demos
What I Do
Web App Code Upgrade & Migration
jQuery to modern frameworks, legacy tables to AG Grid, CSS to Tailwind, Webpack to Vite. Incremental migration on live products.
AI Integration & LLM Features
RAG pipelines, Claude/OpenAI APIs, MCP server configuration, and LLM-driven workflows in production.
Full-Stack Web Development
Vue 3, Nuxt 3, Vite, Tailwind CSS. SQL, REST APIs, Node.js. Clean, maintainable code.
Legacy Modernization
jQuery, ASP, PHP, or aging Angular — pragmatic migration paths that deliver value at every step.
Architecture & Technical Leadership
Tech stack evaluation, codebase reviews, architecture recommendations, and technical specs.
Recent Work
Enterprise Legacy Migration
ASP inline scripts → modern bundled architecture for an enterprise SaaS product serving paying clients.
Excel-to-Database Pipeline
Replaced manual Excel imports with an automated batch processing system — 99.8% data accuracy.
Production AI Agent System
Built RAG pipelines, MCP servers, and Claude-powered workflows from zero AI capability.
Read all case studies with code →Projects
Live applications I've architected and built end-to-end.
THREAD — E-Commerce Platform
Headless commerce on Medusa.js v2 + Next.js 15. Custom backend modules, event-driven architecture, demo mode fallback pattern.
DataPilot — AI Data Analysis
AI-powered CSV analysis with auto-generated charts, anomaly detection, and natural-language Q&A via streaming SSE.
View all projects →How I Work
Discovery
We discuss your project, codebase, and goals.
Plan
Detailed technical plan with milestones before any code.
Execute
Incremental delivery with regular progress updates.
Deliver
Clean, documented code with knowledge transfer.
Don't Take My Word For It
Everything on this site is verifiable. No stock photos, no vague claims, no fake testimonials.
Try the live demos
The GraphQL Explorer hits a real Apollo Server running on this site. The AI Migration tool streams real Gemini API responses. Bring your own key and test it.
Read the code
Every case study includes real code snippets — before/after migration diffs, pipeline architecture, RAG implementation. Judge the code quality yourself.
Inspect this site
Built with Next.js 16, React 19, TypeScript strict mode. 12 production dependencies. Sub-2s build. WCAG 2.2 AAA contrast. View source — this is how I write code.
What I Don't Do
Being upfront about scope saves us both time:
Mobile app development (iOS/Android native)
UI/UX design from scratch — I implement designs, not create them
DevOps-only roles — I do infrastructure as part of full-stack work, not standalone
Projects without clear requirements — I need to know what success looks like before I start
Ready to start?
contact@wei-dev.com — I respond within 2 hours during business hours (ET).