Himanshu Khairnar

full-stack & ai engineer intern

Building full-stack features around the UCP and ACP commerce protocols, and engineering the optimization and enrichment of Google Merchant Center (GMC) product fields to improve feed quality, coverage and listing performance.

• Built a UCP/ACP storefront on RankUp's commerce APIs — catalog, cart, passkey (WebAuthn) login and Razorpay checkout.
• Shipped ShopGPT as a Chrome side-panel extension so shoppers can chat, browse and check out without leaving the page.
• Engineered optimisation and enrichment of Google Merchant Center product fields to lift feed quality and coverage.
• Worked on an AI support agent with semantic product search, order tracking and returns for a Shopify brand.
• Built an MCP (Model Context Protocol) commerce agent that connects to Swiggy, Zepto and Zomato's MCP servers, letting shoppers search, cart and order in chat.
• Built a global payment wallet for AI shopping agents on Razorpay, with payment links and checkout sessions.

Next.js · Python · UCP · ACP · Google Merchant Center

freelance full-stack & ai developer

Designed and shipped two AI platforms for a garment exporter: a Customer Intelligence dashboard that classifies the team's Gmail with Claude to surface buyer commitments, risks and SLA breaches, and PICC — a production command center with an AI agent over their SQL Server ERP. Owned scoping, proposals, delivery and handover.

Next.js · Prisma · SQL Server · Supabase · Claude API · OpenAI · Gmail API

backend developer & database manager

Built internal CMS tools and database systems, wrote Python scripts to automate repetitive document operations, and contributed to backend APIs that sped up data processing for the Data Entry and Validation teams.

Python · SQL · Node.js · Git