We are looking for a developer to build a scalable web platform similar to WhatsForm. The core objective is simple. Users should be able to create a form, share its link, and when someone submits the form, a pre-filled WhatsApp message should open to a predefined number while the submitted data also gets saved automatically in the user’s connected Google Sheet. The platform should allow users to build basic forms with fields like name, mobile, email, dropdown, checkbox, and text inputs. Each form should generate a shareable public link. On submission, the system should redirect to WhatsApp with the filled data in message format (no need for auto-send via API in Phase 1). Users must be able to connect their Google account and select or create a sheet where all responses are stored with proper field mapping. Additionally, each form should have a webhook/API trigger so users can connect it with tools like Zapier, Pabbly, or Make for automation. A simple user dashboard is required where users can create and manage forms, set their WhatsApp number, connect Google Sheets, view submissions, and access webhook links. An admin panel should also be included to monitor users and manage platform usage. The solution must be scalable, secure, and built using a modern tech stack (React / Node / Firebase / Supabase or similar). Deliverables should include a fully working web app, integrations, source code, and deployment support. Project will be milestone-based covering form builder, WhatsApp flow, Google Sheet integration, webhook system, and final deployment. Please apply with your relevant experience, suggested tech stack, timeline, and budget.