Mohsin K.

Full-stack React and Next.js engineer shipping SaaS platforms, AI-integrated tools, and real-time web apps to production. Ten-plus live products, all built end to end. On the enterprise side, I architected a multi-tenant B2B SaaS built on NestJS, Next.js 15, TypeScript, and AWS (Lambda, ECS Fargate, Cognito, S3, CloudFront), with a Claude-backed business rules engine, AI document extraction with confidence scoring, Stripe billing, SOC2 audit compliance, and CI/CD across dev, QA, and production. Other live products include BurnGuard (AI cost monitoring SaaS tracking spend across 9 providers and 51 models with real-time budget alerts and Paddle billing), Boli Live (real-time live auction platform with WebSocket bidding, escrow, KYC, and Amazon IVS video), and SearchMoltBook (search engine indexing 1.5M+ AI agents with fuzzy search and structured JSON-LD SEO). I also build and deploy self-hosted AI agent systems with persistent memory, multi-channel gateways (Telegram, Discord, WhatsApp), and OpenRouter routing on Hetzner and Mac Mini hosts, delivered with full handover documentation. Core stack: React 19, Next.js 16, TypeScript, Node.js, NestJS, PostgreSQL, AWS, Cloudflare Workers, Stripe, Paddle, React Native, Kotlin for Android. Top Rated on Upwork.