Rafay Khan, Full-Stack Product Engineer. I turn ideas into apps, platforms & AI agents people actually use.
I'm Rafay Khan, a full-stack product engineer who takes products from a napkin sketch to the App Store. Architecture, backend, mobile, AI and the boring bits after launch.
Building Gupshup @ CalltureOpen to select projectsFriday, October 16
9:41
Hey 👋 Welcome to my portfolio. Unlock to explore what I've built.
It actually works, tap an app.
Trusted to ship for
01 · Selected work
Achievement Behavior (ABS)
24/7 AI Intake Assistant
Captured 64 qualified leads at an 80% completion rate with Ellie, a 24/7 bilingual AI intake assistant syncing parent profiles to Monday CRM.
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Ferrati Sports
B2B E-Commerce & AI Order Automation
Delivered an SEO-optimized Next.js B2B e-commerce platform with smart catalog filtering and AI-automated order inquiries for global manufacturing.
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Direct Transport Solutions
90% Automated Logistics Platform
Replaced a 90% manual logistics workflow with one platform: admin portal, customer portal and a React Native driver app with live GPS tracking.
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Word of Mouth
Cross-Platform Social Food Discovery App
Launched a cross-platform iOS and Android food discovery app with React Native, Next.js, and Supabase featuring a personalized feed and admin portal.
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B2B Lead Automation
Autonomous n8n Outreach & Reply Engine
Automated 1,200+ personalized B2B emails monthly using n8n, Apollo lead scraping, and a Postgres-backed AI agent that manages replies hands-free.
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Elite Property
24/7 AI Real Estate Assistant & Custom CMS
Reduced staffing costs and automated 24/7 lead qualification with a real estate platform, custom CMS, and Gemini AI chatbot with vector search.
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More projects
E-Commerce DiscoveryReact Design Studio & Algolia SearchWeb
NoorlyDistraction-Free Glassmorphism Tasbeeh CompanionMobile
Shadow SelfAI Jungian Personality & Archetype AnalyzerWeb · AI & Automation
AI Cover Letter GeneratorTailored Letters in 10 SecondsWeb · AI & Automation
Insight ForgeMultimodal RAG Research & Citation EngineWeb · AI & Automation
MinimapFull-Stack Next.js & Firebase E-Commerce PlatformWeb
Riley24/7 AI Voice Appointment Scheduling AgentAI & Automation
AI Stock IntelligenceInstant Analyst-Grade Market ReportsAI & Automation
From News to PostsAutomated AI Social Content EngineAI & Automation
02 · About me
The story so far
Istartedasafreelancer,fixingbugsandshippingMVPsforclientsonFiverrandUpwork.50+projectslater,alogisticscompanyinAustraliatrustedmeastheironlyengineertobuildtheirentireplatform,adminportal,customerportal,andadriverappwithliveGPS.SincethenI'veputasocialappontheAppStore,builtAIagentsthatqualifyleadsandbookappointments,anddesignedERPsystemsthatrunfactories.TodayI'maFull-StackEngineeratCallture,buildingGupshupTorontoacrossweb,iOSandAndroid.
- years shipping production software
- 4+
- freelance projects delivered
- 50+
- countries (Australia, US, Pakistan)
- 3
- platforms from one engineer (web, iOS, Android)
- 3
03 · Journey
Where I've done the work
Oct 2026 to Present
Callture
Full-Stack Engineer · Full-time
- Building Gupshup Toronto end-to-end, a cross-platform product shipping as a web app and native iOS and Android apps.
Current project
Gupshup Toronto
WebiOSAndroidLaunching soonDec 2025 to Present
Involvz
Software Engineer & Automation Developer · Lahore, Pakistan · Part-time
- Deliver software for international clients across healthcare, manufacturing, and e-commerce, owning projects end-to-end from architecture through deployment.
- Owned Shopify development for Simply Trees, custom storefront features, compliance filtering logic, and backend integrations that replaced manual processes.
- Built AI-powered intake and FAQ chatbots for healthcare clients (ABC Achieve, Jim The Handyman) that qualify leads automatically and sync them to company CRMs.
- Designed and implemented a full ERP/CRM system in Odoo for Ittefaq Salt, covering manufacturing, inventory, purchasing, sales, and accounting.
Mar 2025 to Present
Word of Mouth
Mobile Application Developer · Remote · USA
- Own the full mobile engineering lifecycle for a production social platform on iOS and Android.
- Built and shipped the app from scratch with React Native, Expo, and TypeScript, one codebase for both platforms.
- Developed personalized content feeds and proximity-based discovery.
- Independently manage push notifications, API integrations, releases, and App Store / Play Store deployments.
Aug 2025 to Feb 2026
Ferrati Sports
Software Engineer · Contract · Remote
- Built internal automation systems to improve outbound B2B sales workflows.
- Developed data aggregation and lead-enrichment pipelines that replaced manual prospecting.
- Integrated LLM APIs to generate personalized outreach at scale.
Aug 2023 to Jul 2025
Direct Transport Solutions
Full-Stack Engineer · Remote · Australia
- Sole engineer responsible for designing, building, and maintaining the company's core logistics platform.
- Built the complete platform, internal Admin Portal, Customer Portal, and a React Native Driver app.
- Implemented real-time GPS tracking over WebSockets so dispatchers and customers can follow drivers live.
- Designed the database and access-control model with PostgreSQL and Supabase Row-Level Security.
Client project
NodusTickets
Lead Engineer · Client: Gallo
- Designed an offline-first SaaS ticket validation platform that prevents fraud even without internet connectivity.
- Built cryptographically signed QR validation (Ed25519) on a Fastify backend, tickets can't be forged or reused.
- Implemented hash chaining to protect locally stored validation records against tampering.
Need something built?
I take on web, mobile, AI and automation work end-to-end.
04 · What's next
Got an idea?
Let's ship it.
Tell me what you're building. No sales team and no hand-offs, just the engineer who'll build it.
Rafay KhanYou'll talk to me directly