Mubashar H.

Senior Full-Stack Developer AI SaaS, Stripe, React/Nextjs/React Native

I build production web and mobile apps for founders and small teams, especially AI products, SaaS platforms, CRM systems, dashboards, automations, and payment-backed systems. 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸, 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀, 𝟱+ 𝘆𝗲𝗮𝗿𝘀. Clients hire me when they need someone who can take plain-English specs, make good technical decisions, ship quickly, and communicate before they have to ask. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱 • 𝗔𝗜 𝗮𝗴𝗲𝗻𝘁𝘀 & 𝗟𝗟𝗠 𝘄𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀: lead capture, qualification, scheduling, and support agents; vector search, embeddings, RAG, Pinecone, LangChain, OpenAI, Claude, Gemini • 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 & 𝗱𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀: auth, roles/RBAC, admin panels, reporting, realtime data, multi-tenant systems • 𝗖𝗥𝗠 & 𝗹𝗲𝗮𝗱 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: custom CRMs, contact and deal pipelines, lead scoring, automated follow-ups, and conversion reporting • 𝗣𝗮𝘆𝗺𝗲𝗻𝘁-𝗯𝗮𝗰𝗸𝗲𝗱 𝗮𝗽𝗽𝘀: production Stripe & Stripe Connect, subscriptions, webhooks, checkout flows, in-app purchases (App Store & Google Play), Peachy, PayPal, and local/regional payment methods • 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗳𝗿𝗼𝗻𝘁𝗲𝗻𝗱𝘀: React, Next.js, TypeScript, Tailwind CSS, PWAs • 𝗖𝗿𝗼𝘀𝘀-𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗺𝗼𝗯𝗶𝗹𝗲: React Native + Expo, from any stage to the App Store and Google Play • 𝗕𝗮𝗰𝗸𝗲𝗻𝗱𝘀 & 𝗱𝗮𝘁𝗮: microservices, Node.js, Python, FastAPI, Supabase, Firebase, PostgreSQL; database migrations, graph and vector databases • 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁: Docker, Kubernetes, Dokku, Coolify, CI/CD pipelines, self-hosting and VPS, Nginx, zero-downtime deploys • 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 & 𝗶𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: Guesty (short-term rentals), Brevo, Twilio; AWS S3, Google Cloud Storage, Cloudflare, domains and DNS 𝗥𝗲𝗰𝗲𝗻𝘁 𝘄𝗼𝗿𝗸 • AI booking and lead-capture agents live for short-term holiday-rental businesses in Australia, integrated with Guesty • Multiple CRM and lead-management systems with pipelines, automated follow-ups, and reporting (one enterprise CRM ongoing, $25K+ delivered) • An AI real-estate search and lead-capture system (WordPress + Next.js) with natural-language filtering and semantic search • A React Native money-remittance app with multi-provider payment integration • A React Native online POS and business platform shipped to the app stores • AI voice-agent production hardening for real-time call handling Clients describe me as fast, autonomous, clear, accountable, and quality-focused. I'm especially useful when you have the product vision but need a developer who can turn it into a real system without daily micromanagement. 𝗪𝗵𝗮𝘁 𝘆𝗼𝘂 𝗴𝗲𝘁 • early deployed previews • direct updates and honest scope calls • clean repo handoff and documentation • practical technical choices, not over-engineering • production-minded QA around auth, payments, webhooks, data, and edge cases If you're building an AI product, SaaS MVP, CRM, internal tool, dashboard, or payment-connected web or mobile app, send me the idea. I'll tell you clearly what I'd build first, what I'd avoid, and whether I'm the right fit.