Senior Full-Stack Developer Needed for Indian Placement Startup

We are looking for a senior full-stack freelancer to build a 2-phase product for an Indian nanny placement startup (Bangalore). Phase 1 (1 week): parent portal v1 on Softr + Airtable, integrations with AiSensy/ gupshup (WhatsApp), Razorpay, Google Calendar. Phase 2 (6-8 weeks, starts month 2): rebuild on Next.js + Supabase + Tailwind + shadcn/ui, including ops console on Retool. Must-have: Next.js, Supabase or Postgres, Airtable API, Razorpay integration, prior B2C or services product shipped, Indian timezone, Indian English fluent. Strong nice-to-have: WhatsApp Business API integration