Senior Full-Stack & Mobile Developer — Next.js 15, Firebase, Capacitor (iOS/Android)

We're a premium cognitive wellness brand with a live web platform (PWA) and a mobile app build in progress. We're looking for an experienced developer to join our existing build and grow into a long-term technical partner — handling new development plus ongoing maintenance, debugging, and releases. We build lasting relationships with developers who consistently deliver quality. What You'll Work On --An existing Next.js 15 web platform (PWA) — features, fixes, polish --Capacitor wrapper converting the PWA into native iOS and Android apps --Native in-app purchase (IAP) integration on iOS and Android --Stripe subscription flows on web --App Store and Google Play submission and release management Ongoing Responsibilities This is not a one-time build. Beyond the current work, the role includes ongoing maintenance, bug fixes, debugging, performance monitoring, feature updates, and app store release management as the platform grows. We're looking for someone who wants to be a long-term technical partner, not a single-project contractor. Required Experience --Next.js 15 + React (strong, recent, production experience) --Firebase — Auth and Firestore --Capacitor — real experience wrapping a web app into native iOS/Android (not just theory) --Native IAP — StoreKit (iOS) and Google Play Billing --Stripe subscription integration --Proven App Store and Google Play submissions — apps that got approved and shipped --Bonus: experience submitting health or wellness category apps How to Apply — proposals missing these will not be considered: Links to 2–3 apps you've shipped to the App Store and/or Google Play (live store links) Which of those were health/wellness category, if any A short note on a Capacitor build you've done — what worked, what was tricky Your typical availability (hours/week) and time zone Put the word "cyan" at the top of your proposal so we know you read this post Terms All work performed under IP assignment — all code, assets, and deliverables are the exclusive property of our company, with full repository and credential handover We'll start with a small paid trial task to confirm fit before scaling up Clear daily communication and a 24-hour rule on flagging blockers