
Freelance Prototype Developer
Job Description
Posted on: November 4, 2025
This role offers an opportunity to contribute to the development of a discreet, Bluetooth-enabled wearable device designed to enhance personal safety for individuals on the move, such as runners and travelers. The project centers on building a functional prototype that connects to a mobile app, enabling features like real-time alerts and location sharing. The ideal candidate will have a strong background in hardware prototyping for wearables or IoT, with a focus on low-power, rechargeable solutions. The contract is for 6–8 weeks, with flexibility on the timeline and the potential for future collaboration. This is a chance to make a tangible impact on user safety and peace of mind. Responsibilities
- Define, design, and build a working prototype of a Bluetooth-enabled wearable device
 - Integrate Bluetooth Low Energy (BLE) for seamless mobile app connectivity
 - Develop firmware to support simple user input and device functionality
 - Source and select appropriate hardware components for low-power operation
 - Ensure the device is rechargeable and optimized for extended battery life
 - Collaborate on product design, referencing provided technical drawings and requirements
 - Troubleshoot and resolve technical challenges throughout the prototyping process
 - Document development steps and provide recommendations for future iterations
 
Skills And Requirements
- Proven experience in hardware engineering for wearables or IoT devices
 - Expertise in Bluetooth Low Energy (BLE) integration and firmware development
 - Strong understanding of low-power circuit design and rechargeable battery systems
 - Ability to source and evaluate electronic components for prototyping
 - Proficiency with prototyping tools and platforms (e.g., Arduino, Raspberry Pi, custom PCBs)
 - Portfolio demonstrating relevant projects in wearable technology or similar fields
 - Problem-solving mindset and ability to work independently to meet project goals
 - Excellent communication skills for remote collaboration
 - Availability for a 6–8 week contract, with flexibility on schedule
 
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