Full Stack Mobile App Developer (React Native / Firebase)

Employment Type: Full time, independent contractor

Work Model: Remote

Work Hours: US work hours

Role Summary

We are seeking a highly capable, self-managed Full Stack Mobile App Developer to lead the end-to-end development and ongoing enhancement of a consumer-facing mobile application for both iOS and Android.

This role is ideal for a developer who thrives on high autonomy, can move exceptionally fast, and has the engineering maturity to translate high-level product ideas into scalable, production-ready technical architecture. You will be the primary builder responsible for taking features from initial concept, through prototyping, to live deployment.

Tech Stack

Frontend: React Native (Cross-platform iOS & Android)
Backend & Database: Firebase, Node.js
Growth Analytics & Monetization: PostHog, Superwall (Paywalls/Subscriptions)
Design & Version Control: Figma, GitHub

Key Responsibilities

Full Stack Engineering & UI/UX Iteration

Cross-Platform Development: Architect, build, and maintain production-ready code for both iOS and Android platforms utilizing React Native.
Backend Systems: Build scalable, modular, and maintainable backend APIs and infrastructure using Node.js and Firebase services.
UI/UX Implementation: Translate design primitives and wireframes from Figma into high-fidelity, smooth, and native mobile user experiences.
Growth Stack Integration: Integrate and manage analytics pipelines (PostHog), paywall testing infrastructure (Superwall), user onboarding flows, and continuous subscription optimization.

Technical Documentation & Project Management

Maintain crystal-clear, updated technical documentation within the repository, explicitly capturing:
- Global project overview and modular architecture maps.
- Detailed local setup, configuration keys, and environment variables.
- Database technical schemas and key workflow implementation details.
Break down broad product definitions into structured coding tasks and organize them clearly inside project management platforms like Asana.
Maintain clean version control best practices across our GitHub codebase.

Required Skills & Qualifications

Core Mobile Stack: 3–5+ years of professional full-stack engineering experience, with deep, hands-on mastery of React Native, Node.js, and Firebase backend integrations.
Monetization & Analytics: Proven familiarity with implementing mobile app subscriptions, paywall A/B testing (Superwall preferred), and behavioral product analytics (PostHog preferred).
Architectural Cleanliness: Strong understanding of scalable app architecture, modular codebase patterns, and robust environment configuration management.
Design Literacy: Practical experience navigating Figma files to extract layout values, assets, and user workflows.
Autonomous Execution: Exceptional communication skills with a proven ability to independently manage engineering priorities, document technical architecture, and execute without constant hand-holding.

Preferred Qualifications

Prior experience launching and scaling consumer-facing mobile applications on the App Store and Google Play Store.
"Vibe Coding" Fluency: High familiarity with leveraging modern AI-assisted development tools (e.g., Cursor, GitHub Copilot, Claude) to radically accelerate engineering loops and output speed.
Experience operating successfully inside lean, fast-moving, high-growth startup environments.

Important Notes for Applicants

Speed of execution is the critical success factor for this role. We are looking for a proactive, adaptable developer who can build and iterate at a lightning-fast pace without sacrificing code quality, test boundaries, or clean documentation standards.

Full Stack Mobile App Developer - 60533791905