Firmware Engineer for HappyMat Prototype

Embedded Systems / Firmware Engineer Project Description HappyMat(TM) is seeking an experienced Embedded Systems / Firmware Engineer for HappyMat Prototype #1. You will be responsible for the prototype's embedded controller, firmware, sensor integration, LED control, digital display, wireless communications, and associated hardware/firmware integration. Primary Responsibilities • Develop and configure the embedded controller and firmware. • Integrate pressure/presence sensing. • Integrate addressable LED lighting. • Integrate the digital display. • Implement Wi-Fi connectivity. • Implement Bluetooth/BLE connectivity. • Support camera, speaker, and microphone integration. • Coordinate with the IoT/interface engineer where applicable. • Troubleshoot electronics and firmware during integration. • Deliver applicable firmware/source code, configurations, and wiring information. Preferred Skills / Experience ESP32 or Similar MCU; Embedded C/C++; Sensors; RGB/RGBW LEDs; Displays; Wi-Fi; BLE; Electronics Debugging; Soldering; Hardware/Firmware Integration 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 physical electronic product or prototype you personally helped build. Explain exactly what you contributed and provide photos, video, or portfolio evidence if available. We strongly prefer engineers with experience working on real physical hardware, not software-only projects. 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.