Android Dev for Farmers Market Geo-App
Budget: $250 – $750 USD
Here is the updated job posting, incorporating the custom authentication rules.
I added a dedicated **Authentication & Access Control** section to make it clear that standard users get seamless onboarding, while vendors are gated behind an approval process to protect the market's integrity.
## Job Title
**Android Developer Needed: Location-Based Farmers Market App with Geofencing & Gated Vendor Auth**
## Job Description
We are looking for an experienced **Android Developer** to build the MVP (Minimum Viable Product) for a unique, location-based app designed for farmers markets. The app connects vendors and attendees in real-time using precise location tracking and geofencing.
The initial project is strictly for Android, but the codebase should be architected with cross-platform scalability in mind (Kotlin Multiplatform or Flutter preferred, though native Kotlin is acceptable if modularized well), as we plan to expand to iOS and macOS down the road.
### Key Features & User Roles
#### 1. Authentication & Access Control (Crucial Requirement)
* **Attendee Sign-In:** Frictionless onboarding. General users can instantly create an account and log in using **Email, Phone Number, or Google Sign-In**.
* **Vendor Access Gate:** Anyone can apply for a vendor account, but they **cannot access vendor features until they are manually granted access/approved** by an admin. Unapproved vendor accounts should remain locked or in a pending state.
#### 2. Attendee (Non-Vendor) Account
* **Interactive Market Map:** View real-time locations of active, approved vendors positioned within a specific farmers market.
* **Vendor Profiles:** Tap on a vendor to see their name, bio, current offerings, and profile details.
* **Smart Shopping List:** Attendees can create a checklist of vendors they want to visit.
* **Proximity Check-off:** As the user physically enters a vendor’s designated geofence, that vendor is automatically checked off or highlighted on their shopping list.
#### 3. Vendor Account (Approved Only)
* **Location Pinpointing:** Set and broadcast their specific stall location within the larger market perimeter.
* **Profile Management:** Update their business name, description, and "what's fresh today" product list.
* **"Party Line" Chat:** Access a shared, global group chat exclusive to approved vendors for real-time community coordination, logistics, and announcements.
### Technical Requirements
* **Identity & Access Management:** Experience with Firebase Auth, Supabase Auth, or Auth0 implementing multi-role access control (RBAC) and custom claims to handle the vendor approval gate.
* **Location Services & Geofencing:** Deep understanding of Google Play Services Location APIs (GeofencingClient) for accurate, battery-efficient proximity alerts.
* **Mapping Integration:** Mapbox SDK or Google Maps API with custom styling and indoor/micro-location pinning capabilities.
* **Real-time Database & Chat:** Backend integration to handle the real-time "party line" vendor chat and live vendor location states.
* **Architecture:** Clean, modular architecture (MVVM). If building natively, Kotlin is required. If proposing a cross-platform framework (Flutter/KMP) to streamline our future iOS/macOS launch, please specify your approach in your proposal.
### Scope & Deliverables
* Fully functional Android MVP with a secure authentication flow (source code via GitHub/GitLab).
* UI/UX implementation based on wireframes (including "Pending Approval" screens for vendors).
* Deployment-ready build for internal testing.
### Preferred Qualifications
* Proven experience with social auth (Google) and role-based authentication systems.
* Track record of delivering apps utilizing background location services and geofencing.
* Experience with real-time chat architectures.
* Portfolio links to previous location-based or community-focused apps.
### How to Apply
Please submit your proposal detailing:
1. How you plan to structure the database and authentication flow to handle the manual vendor approval gate securely.
2. Your experience with geofencing and real-time mapping APIs in Android.
3. Your recommended tech stack for this project (especially considering the future transition to iOS/macOS).
I added a dedicated **Authentication & Access Control** section to make it clear that standard users get seamless onboarding, while vendors are gated behind an approval process to protect the market's integrity.
## Job Title
**Android Developer Needed: Location-Based Farmers Market App with Geofencing & Gated Vendor Auth**
## Job Description
We are looking for an experienced **Android Developer** to build the MVP (Minimum Viable Product) for a unique, location-based app designed for farmers markets. The app connects vendors and attendees in real-time using precise location tracking and geofencing.
The initial project is strictly for Android, but the codebase should be architected with cross-platform scalability in mind (Kotlin Multiplatform or Flutter preferred, though native Kotlin is acceptable if modularized well), as we plan to expand to iOS and macOS down the road.
### Key Features & User Roles
#### 1. Authentication & Access Control (Crucial Requirement)
* **Attendee Sign-In:** Frictionless onboarding. General users can instantly create an account and log in using **Email, Phone Number, or Google Sign-In**.
* **Vendor Access Gate:** Anyone can apply for a vendor account, but they **cannot access vendor features until they are manually granted access/approved** by an admin. Unapproved vendor accounts should remain locked or in a pending state.
#### 2. Attendee (Non-Vendor) Account
* **Interactive Market Map:** View real-time locations of active, approved vendors positioned within a specific farmers market.
* **Vendor Profiles:** Tap on a vendor to see their name, bio, current offerings, and profile details.
* **Smart Shopping List:** Attendees can create a checklist of vendors they want to visit.
* **Proximity Check-off:** As the user physically enters a vendor’s designated geofence, that vendor is automatically checked off or highlighted on their shopping list.
#### 3. Vendor Account (Approved Only)
* **Location Pinpointing:** Set and broadcast their specific stall location within the larger market perimeter.
* **Profile Management:** Update their business name, description, and "what's fresh today" product list.
* **"Party Line" Chat:** Access a shared, global group chat exclusive to approved vendors for real-time community coordination, logistics, and announcements.
### Technical Requirements
* **Identity & Access Management:** Experience with Firebase Auth, Supabase Auth, or Auth0 implementing multi-role access control (RBAC) and custom claims to handle the vendor approval gate.
* **Location Services & Geofencing:** Deep understanding of Google Play Services Location APIs (GeofencingClient) for accurate, battery-efficient proximity alerts.
* **Mapping Integration:** Mapbox SDK or Google Maps API with custom styling and indoor/micro-location pinning capabilities.
* **Real-time Database & Chat:** Backend integration to handle the real-time "party line" vendor chat and live vendor location states.
* **Architecture:** Clean, modular architecture (MVVM). If building natively, Kotlin is required. If proposing a cross-platform framework (Flutter/KMP) to streamline our future iOS/macOS launch, please specify your approach in your proposal.
### Scope & Deliverables
* Fully functional Android MVP with a secure authentication flow (source code via GitHub/GitLab).
* UI/UX implementation based on wireframes (including "Pending Approval" screens for vendors).
* Deployment-ready build for internal testing.
### Preferred Qualifications
* Proven experience with social auth (Google) and role-based authentication systems.
* Track record of delivering apps utilizing background location services and geofencing.
* Experience with real-time chat architectures.
* Portfolio links to previous location-based or community-focused apps.
### How to Apply
Please submit your proposal detailing:
1. How you plan to structure the database and authentication flow to handle the manual vendor approval gate securely.
2. Your experience with geofencing and real-time mapping APIs in Android.
3. Your recommended tech stack for this project (especially considering the future transition to iOS/macOS).