Anwendungsentwickler:in Full Time

Payment: 111.000 Rupie / Month

Location: 100% Remote

Type: Contract / Freelance (Project-based with potential for long-term CTO/Lead Dev role)

About the Project: We are an early-stage stealth startup building a disruptive B2B2C SaaS platform. We are looking for a highly skilled, autonomous Full-Stack Developer to build our MVP from the ground up.

Core MVP Architecture & Responsibilities:

* Multi-Tenant Container App (Mobile): Develop a single cross-platform mobile app (iOS/Android). The app must act as a dynamic container that fetches and applies specific tenant (client/business) branding, UI themes, and product catalogs based on user authentication or deep links.

* SaaS Admin Dashboard (Web): Build a clean, responsive web dashboard for business owners to manage their clients, track MRR (Monthly Recurring Revenue), configure membership tiers, and view analytics.

* Payment Infrastructure: Integrate Stripe Connect (or standard Stripe SDK) to handle complex payment flows, including in-app purchases, recurring subscriptions (Memberships), and local payment methods (Apple Pay, SEPA, Klarna).

* Database & API Design: Architect a scalable, secure multi-tenant relational database structure.

Required Tech Stack & Expertise:

* Mobile Frontend: React Native or Flutter (Proven experience in building dynamic, white-label, or multi-tenant mobile applications).

* Web Frontend: React, Next.js, or Vue.js (Tailwind CSS preferred).

* Backend: Node.js (Express/NestJS) or Python (FastAPI/Django).

* Database: PostgreSQL or MongoDB (Strong understanding of multi-tenancy data isolation).

* 3rd Party APIs: Deep expertise with Stripe API (Billing, Connect, Checkout), Twilio/WhatsApp API, and OpenAI API.

* DevOps/Cloud: AWS, Vercel, Firebase, or Supabase for rapid MVP deployment.

Who You Are:

* You have successfully shipped full-stack SaaS MVPs before (please provide your GitHub or portfolio links).

* You understand the balance between writing perfectly scalable code and shipping an MVP fast to test market assumptions.

* You are proactive. If a feature definition is ambiguous, you propose the best technical solution rather than waiting for instructions.

* Fluent in written and spoken English.

How to Apply: Please start your proposal with the word “GOT IT” so I know you read the requirements. Include:

1. A brief overview of how you would architect the multi-tenant mobile app (how does the app switch branding?).

2. Links to 2-3 SaaS or mobile apps you have built.

3. Your estimated timeline and budget expectations for an MVP covering the core features above.