Full-Stack Developer Needed — WhatsApp Bot + Marketplace Web App (India-based preferred) Hi, I'm a Bengaluru-based founder building a rural-focused digital marketplace platform in Karnataka. Looking for a developer to build the MVP (v1) over 5–7 weeks. --- WHAT YOU WILL BUILD: 1. WhatsApp Bot (primary channel) - WhatsApp Cloud API (Meta) integration - Conversational flow: multi-step onboarding, listing creation, booking confirmation - Voice note receive + forward to ASR API (we provide the API key) - Image receive + upload to AWS S3 - Location pin receive + store coordinates - UPI payment link generation via Razorpay API - Message template management (approved templates) - Webhook handler for incoming messages 2. Backend (Node.js or Python FastAPI) - REST API for bot + web app - PostgreSQL database (listings, users, bookings, trust scores) - Redis for session/state management - Aadhaar eKYC webhook integration (we provide vendor API) - Razorpay payment + escrow + payout integration - Admin moderation panel (flag/approve/reject listings) - Basic trust score calculator logic (formula provided by us) 3. Web App (Next.js or React) - Public listing catalog (search by location + category) - Mobile-first, PWA-compatible - Kannada + English language toggle (i18n) - VLE (agent) portal — simplified listing creation form - Admin dashboard — listing queue, user management, transaction log 4. Infrastructure - Deploy on AWS (Mumbai region — ap-south-1) - EC2 + RDS PostgreSQL + S3 + CloudFront - Basic CI/CD (GitHub Actions) --- TECH STACK REQUIRED: - Node.js (Express) OR Python (FastAPI) — your choice - React / Next.js for frontend - PostgreSQL + Redis - AWS (basic — EC2, RDS, S3) - WhatsApp Cloud API - Razorpay API - Git / GitHub NICE TO HAVE: - Experience with Indian language apps (Kannada/Hindi) - Previous work with WhatsApp bots - Knowledge of UPI payment flows - Rural / agri / marketplace app experience --- SCOPE & TIMELINE: - Duration: 5–7 weeks - MVP only — no fancy UI, functionality over design - Weekly check-ins via Google Meet - You provide clean, documented code + deployment BUDGET: ₹35,000 – ₹ 45000 fixed price for full MVP (Negotiable based on your portfolio and speed) PREFERENCE: - India-based developer (for timezone + language context) - Kannada-speaking is a big plus but not mandatory - Individual developer OR small team of 2 - Someone who has shipped at least 1 live product --- TO APPLY, please share: 1. 1–2 links to past projects (GitHub or live URL) 2. Have you built a WhatsApp bot before? (yes/no + brief description) 3. Your realistic timeline and fixed price quote 4. Your location (city) NOTE: Full business details shared only after a short screening call and NDA signing. Serious developers only.