Khursheed A.

Senior Full-Stack Developer — 10+ years shipping production apps, 10+ marketplaces and ecommerce platforms delivered. I build AI-native products using Claude, OpenAI, and modern LLM tooling on top of Rails, React, and AWS. ━━━ WHAT I BUILD ━━━ • Multi-tenant SaaS platforms (Rails + PostgreSQL + Hotwire/React) • Marketplaces on Sharetribe Flex (10+ projects, Stripe Connect expert) • Ecommerce on Spree Commerce & Shopify custom apps • AI-powered features: chatbots, RAG pipelines, document intelligence, agentic workflows (Claude, GPT-4, embeddings, vector DBs) • REST & GraphQL APIs, React/Next.js frontends, Node.js services • Full AWS deployments (EC2, RDS, S3, Lambda, CloudFront, ECS) ━━━ WHY CLIENTS HIRE ME ━━━ ✓ 11+ years Experience — I've seen the failure modes, I avoid them ✓ AI-native workflow — I ship 2-3× faster using Claude Code, vibe coding, and custom AI tooling, and I pass those gains to you ✓ End-to-end ownership: I can scope, architect, build backend, build frontend, deploy to AWS, and maintain — no handoffs, no finger-pointing ✓ Strong async communication, daily updates, Loom walkthroughs on request ━━━ RECENT WORK ━━━ • Built AI chat widget engine (Rails engine gem) powering customer support with live agent handoff — deployed on Oracle Cloud • SEO automation platform with Claude-generated long-form content + auto-indexing • Multi-vendor marketplace on Sharetribe Flex with Stripe Connect escrow, custom commission logic, and real-time messaging • Shopify custom apps (Node/React) for B2B pricing, subscriptions, and inventory ━━━ STACK ━━━ Backend: Ruby on Rails, Ruby, Node.js, PostgreSQL, Redis, Sidekiq, Action Cable, Supabase Frontend: React, Next.js, TypeScript, Hotwire (Turbo + Stimulus), TailwindCSS Marketplaces/Ecom: Sharetribe Flex, Spree Commerce, Shopify AI/LLM: Claude API, OpenAI, embeddings, RAG, LangChain, vector databases, Gemini Payments: Stripe Connect, Stripe Billing, Subscriptions Cloud/DevOps: AWS (EC2, RDS, S3, Lambda, CloudFront, SES, ECS), Docker, GitHub Actions, Capistrano, systemd) Testing: RSpec, Jest, Cypress Let's talk — send a message with your project brief and I'll reply within a few hours with honest feedback on scope, timeline, and fit.