Front End

React
TypeScript
JavaScript
HTML
CSS
Vite
Tailwind CSS
Material UI
TanStack Query
Zustand
React Hook Form
Zod
Framer Motion
Recharts
Responsive & Mobile-First Design
Accessibility (prefers-reduced-motion)

Back End

Node.js
Express
Python
FastAPI
REST API Design
JWT Auth & Token Rotation
Role-Based Access Control
Webhooks
Rate Limiting
Helmet / CORS
Third-Party API Integration

Databases & Data

PostgreSQL
Prisma ORM
Supabase
Neon
SQLite
Schema Design & Migrations
Row-Level Security
Multi-Tenant Data Isolation
Query Optimization
Data Visualization
Business Intelligence
Financial Analysis

AI & Emerging Tech

Claude API
Anthropic SDK
AI Feature Design
Prompt Engineering
LLM-Assisted Workflows
Recommendation Logic
Claude Code

Payments & Commerce

Stripe Checkout
Stripe Customer Portal
Subscription & Billing Webhooks
Square
POS Systems
E-Commerce
Marketplace Architecture

Platform & Infrastructure

AWS S3 (Presigned URLs)
Clerk
Progressive Web Apps
Service Workers & Offline Caching
npm Workspaces / Monorepos
Netlify
Vercel
Render
GitHub Pages
CI-Ready Builds

Engineering Practice

Git & GitHub
Code Review
Technical Documentation
ESLint / Oxlint
Postman
Debugging & Profiling
SEO & Structured Data
VS Code

Business & Product

Agile
Scrum (CSM)
Product Ownership (CSPO)
Backlog & Roadmap Management
Requirements Gathering
Business Analysis
Go-to-Market Strategy
Revenue Strategy
Stakeholder Management
Client Onboarding
Solutions Engineering
UI/UX Optimization