Full-Stack Mobile Developer for App (iOS & Android)

I am looking for a talented mobile app developer (or small agency) to build Pinvera, a community-driven social mapping platform. The app allows users to report and "pin" real-world social encounters to a map, categorized by specific archetypes (Karens, Chads, Legends, and Safety Warnings).

The app features a robust moderation system and a gamified experience where users earn tokens, increase their trust score, and compete on a global leaderboard.

Key Features & Functionality
1. User Authentication & Profiles
Sign-up/Sign-in via Email, Google, and Apple ID.

User profiles displaying "Trust Score," "Level," and "Total Tokens."

Streak tracking (e.g., 0-day streak) to encourage daily engagement.

2. Interactive Map Interface (Core Feature)
A real-time map view (Google Maps or Mapbox integration).

Visual "pins" based on the category of the encounter.

Filter system to toggle visibility of different pin types (Karen, Chad, etc.).

"Current Location" centering and search functionality.

3. Encounter Reporting ("Add Pin")
User-friendly form to submit encounters.

Categories:

Karen: Annoying or entitled behavior.

Chad: Positive or funny encounters.

Legend: Wholesome or helpful encounters.

Warning: Scams, safety alerts, or warnings.

Submission Details: Title, Description, Category selection, and Geo-location (automatic or manual).

4. Moderation & Pending System
All submitted pins must go to a Pending Queue.

Admin/Moderator capability to review, approve, or reject pins before they appear on the public map.

A "Pending" tab for users to track the status of their submissions.

5. Gamification & Leaderboard
Token System: Users earn tokens for approved pins.

Trust Score: A leveling system (Level 1, 2, etc.) based on the accuracy and frequency of reports.

Leaderboard: A dedicated "Board" tab showing top users ranked by Tokens, Trust, or Activity.

6. Categorized Feeds
Dedicated tabs for "Karen Sightings," "Chad Encounters," "Nice Legends," and "Warnings."

Feeds should include "Most Reported" trends for the week (e.g., "Most reported: Phone scams this week").

Technical Requirements
Platform: Cross-platform development (Flutter or React Native) to ensure 100% feature parity on iOS and Android.

Backend: Firebase (Firestore, Auth, Functions) or a Node.js/PostgreSQL setup.

Geolocation: Deep integration with GPS and mapping APIs.

UI/UX: I have existing high-fidelity wireframes/screenshots. The developer must be able to replicate the clean, modern aesthetic shown in the designs (rounded containers, soft shadows, and specific iconography).

Timeline & Milestones
Phase 1: Backend setup & User Authentication.

Phase 2: Map integration & Pin submission logic.

Phase 3: Admin Moderation panel & Pending flow.

Phase 4: Gamification (Tokens/Leaderboards).

Phase 5: QA Testing & Deployment to App Store/Google Play.

How to Apply
Please provide:

Examples of previous map-based or social networking apps you have built.

Your preferred tech stack for this project.

An estimated timeline for an MVP (Minimum Viable Product).