Freelance Prototype Developer

TwineWorkFromHome, Southland, New Zealand

16 hours ago

Job description

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 & 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

About Twine

Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise. Trusted by Fortune 500 companies and innovative startups alike, Twine enables companies to scale their teams globally.

Our Mission

Twine's mission is to empower creators and businesses to thrive in an AI‑driven, freelance‑first world.

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Developer • WorkFromHome, Southland, New Zealand