Smart Hardware Prototype Interface Development

IoT / Mobile-Web Control Interface Engineer

IoT / Mobile-Web Interface Engineer - Smart Hardware Prototype

Project Description:
HappyMat(TM) is developing a smart interactive physical product incorporating embedded electronics, sensors, LED lighting, a digital display, Wi-Fi/Bluetooth connectivity, and other interactive features.
We are seeking an IoT / Mobile-Web Control Interface Engineer to develop a simple control interface for HappyMat Prototype #1 and collaborate closely with our embedded/firmware engineer.

Primary Responsibilities:

• Develop a simple mobile-friendly or web-based control interface.
• Communicate with the HappyMat embedded controller over the selected Wi-Fi/Bluetooth architecture.
• Provide basic controls for applicable prototype functions.
• Coordinate directly with the embedded firmware engineer.
• Support applicable display, lighting, and interactive controls.
• Keep the Prototype #1 interface practical and straightforward.
• Troubleshoot communications between the interface and physical hardware.
• Participate in integration and functional testing.
• Deliver all applicable source code and configuration files.

Preferred Skills / Experience:

IoT;
ESP32 Integration;
Wi-Fi;
Bluetooth/BLE;
REST/WebSocket/MQTT or Similar Protocols;
Mobile-Responsive Web Interfaces;
JavaScript/TypeScript or Comparable Technologies;
Hardware Control Interfaces

COMPENSATION - $700 USD FOR THIS TEAM MEMBER
Fixed Price: $700 USD for this individual position.

The selected professional for this position will receive $700 USD total for successful completion of the complete assigned scope.
HappyMat is assembling a multidisciplinary engineering team. Each team member is hired separately and each team member receives their own $700 USD fixed payment for their individual assigned scope.

The $700 payment is NOT shared or divided among the engineering team.
This is a fixed-price project, not an hourly position.

How to Apply:

Begin your proposal with HAPPYMAT.

Describe one application or interface you personally developed that communicated with physical hardware or an IoT device. Explain the communication method you used, exactly what you personally developed, and provide screenshots, video, or portfolio examples if available.

NDA required before confidential HappyMat technical information is shared.
Teamwork requirement: The selected professional must communicate reliably with the other HappyMat team members, participate in integration and testing as applicable, and deliver all project-specific work files associated with the assigned role.