Shubham K.

Hi, I'm Shubham 👋, a Full Stack AI Developer specialising in multi-tenant SaaS applications, AI-powered products, agentic CRM systems, and scalable web platforms. I work with founders to turn product ideas into production-ready SaaS apps, from architecture and database design to frontend, backend, AI integrations, and deployment. With 1.5+ years of AI-assisted development using Cursor, I combine AI-powered coding workflows with hands-on engineering to build, test, and ship software efficiently. AI Service Productization For agencies delivering AI solutions to multiple clients, I build shared systems instead of separate solutions for every client. Think of a managed building: each client gets their own configured space, while the underlying infrastructure is shared and maintained centrally. The result is less duplicated development, faster onboarding, and a service that's easier to scale. ⚡ Top Rated Plus | $80K+ earned | 100% Job Success If you need someone who can think through the technical approach and build it hands-on, let's talk. Send me an invitation or message, and we can chat briefly to understand your project and schedule a discovery call. Once I have a clear picture of your requirements, I'll record a Loom video walking you through my recommended implemen ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔥 WHAT I BUILD AI Agents & Voice Systems → Inbound/outbound voice agents, AI receptionists, lead qualification, follow-up, booking & human handoff — Retell AI, VAPI, LiveKit, Twilio → WhatsApp & SMS AI agents connected to CRMs, PMSs, databases, calendars & payments B2B Sales & Revenue Systems → Lead → qualification → follow-up → discovery → proposal → contract → payment → documents → GoHighLevel custom apps, embedded Sales Workspaces, webhooks, custom objects & app-side permissions I build these as production systems with real business logic and integrations — not standalone chatbots or fragile automations. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🧑‍💻 SAAS, MVPs & CUSTOM CRMs → Multi-Tenant SaaS — production B2B2C platforms with agency → business hierarchies, tenant isolation, centralized authorization & business-scoped access → MVP & Product Engineering — Next.js, TypeScript, PostgreSQL, Supabase & Stripe → Custom Business Platforms — CRMs, client portals, dashboards and internal systems that replace fragmented tools and manual processes Flagship builds: ReCallSync, Usecortana/AgentKong, and Business Automation Platform. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⭐ SERVICE PRODUCTISATION Local Business Service Fulfilment Platform A multi-tenant platform that turns a local-business service into a repeatable fulfilment operation. Agentic CRM + pipelines, website enquiry capture, ticketing, Google/Outlook calendar, automated Stripe invoicing, GBP review automation, and DataForSEO-powered local SEO workflows. One system for capturing the client, managing the work, automating fulfilment and tracking delivery. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ GHL CUSTOM DEVELOPMENT CompleteOne — White-Label B2B Revenue Platform Built on GoHighLevel's white-label SaaS infrastructure as a reusable revenue system rather than a one-off CRM customization. → Lead → Discovery → Quote → Proposal → E-Signed Contract → Payment → Documents → Embedded Sales Workspace combining the process into one application → App-side RBAC and data privacy where GHL's native permissions aren't sufficient Live in production at Complete ICT and designed as a reusable foundation for similar B2B businesses. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📊 PRODUCTION PROOF → $80K+ verified Upwork earnings across 35+ projects → 100% Job Success | Top Rated Plus → 4,200+ hours clocked on upwork ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ TECHNOLOGIES Next.js | React | TypeScript | Node.js | Python/FastAPI | PostgreSQL | Supabase | Prisma | Docker | Stripe | OpenAI/Codex | Claude/Cursor | VAPI | Retell AI | LiveKit | Twilio | Meta/WhatsApp API | GoHighLevel | REST APIs | MCP | RAG ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤝🏻 HOW I WORK I lead the delivery, not just the code. → Architecture and technical planning upfront → Regular updates on what's done, what's next, and what's decided → Questions upfront to eliminate ambiguity before development → Production-minded implementation focused on reliability, integrations, data isolation & maintainability Send me what you're building or the process you're trying to fix. We'll talk through the solution and see if we're a good fit. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔎 CLIENTS SEARCH ME FOR: Multi-Tenant SaaS Application Developer | AI-Powered SaaS Developer | Full Stack AI Developer | AI Agent Application Developer | AI CRM Developer | Next.js SaaS Developer | SaaS MVP Developer | AI Voice Agent Developer | CRM Integration Developer | B2B Sales Automation Developer | GoHighLevel API Integration Developer