Senior Full-Stack Developer — Consumer App MVP (Mobile + Web, India)

Building a consumer app MVP for the Indian market — full-stack mobile + web. Looking for a senior full-stack developer who can own the build end-to-end: React Native mobile app, Next.js web companion, Node.js backend, email parsing pipeline, AWS infrastructure. Indian consumer app experience preferred. About the project I'm a Delhi-based founder building a consumer app for Indian online shoppers. The product involves email and sms parsing as a core data layer, third-party API integrations, OAuth-based authentication, payment-adjacent UX (no direct payments), and structured data management with real-time updates. For confidentiality, I won't share the specific concept here. Selected developer signs a mutual NDA before kickoff, after which I share the full product spec, wireframes, and design references. Technical capabilities required Front-end: React Native (iOS + Android single codebase), Next.js or React for web, Tailwind CSS, mobile-optimized UI for Indian conditions (low bandwidth, mid-tier Android), Hindi + English language support. Back-end: Node.js (Express/NestJS) or Python (FastAPI/Django), PostgreSQL, Redis caching, background job processing, clean RESTful APIs. Email parsing (core capability): Building extraction pipelines for semi-structured email bodies, maintaining parser templates across many sender formats, graceful failure handling, confidence scoring, Gmail API integration via OAuth. Cloud: AWS or GCP (compute, storage, database), CI/CD pipelines, monitoring (Sentry/Datadog), cost optimization for early-stage startup. Integrations: OAuth 2.0 (Google, Apple, Gmail API), email service (Mailchimp/SendGrid/Brevo), WhatsApp Business API (Interakt/WATI/AiSensy), SMS gateway (MSG91/Twilio), analytics (Mixpanel/PostHog/GA4), Meta Pixel. Compliance: DPDP Act 2023 (consent flows, data retention, grievance handling, user data export/deletion endpoints), encryption at rest and in transit, secure OAuth token handling. Required in your application — I will not review proposals missing any of these Portfolio: Links to 2-3 consumer apps you've built or significantly contributed to. Indian consumer app experience preferred. Your specific role on each. Tech stack: Which stack you'd use from the options above and why. If you'd propose something different, explain. Email and sms parsing experience: What email parsing work have you done? Volume? Number of sender formats? Approach to format changes? Solo or team: Are you working solo or with a team? If team, share the structure. Indian consumer app experience: Hardest thing you've solved when building for Indian users specifically. DPDP awareness: Brief view on what DPDP Act 2023 requires for consumer apps. Fixed-price quote: Single price for full scope. Pass-through costs (cloud, SMS gateway) identified separately. Timeline: Week-by-week breakdown. If 16 weeks isn't realistic, tell me what is and why. References: Three past clients I can contact. At least one Indian client.