Wearables Prototype Engineer (Hardware + Software)

Grow With Us

We are looking for a highly creative, hands-on Wearables Prototype Engineer to design, build, and iterate on next-generation wearable devices that integrate seamlessly with Workstream’s platform.

In this role, you will operate at the intersection of hardware and software—rapidly prototyping, testing, and refining wearable solutions that can improve productivity, communication, and operations for the hourly workforce. You will work closely with product, engineering, and design teams to bring ideas from concept to functional prototypes.

This is a highly experimental and fast-paced role, ideal for someone who thrives in ambiguity, enjoys building from scratch, and can move quickly from idea to working prototype.

• Design, build, and iterate on wearable hardware prototypes from concept through functional validation
• Develop embedded software and firmware to power wearable devices and enable real-time data capture and communication
• Integrate wearable devices with Workstream’s platform, APIs, and mobile/web applications
• Rapidly prototype using off-the-shelf components (MCUs, sensors, Bluetooth modules, etc.) and custom PCB designs
• Conduct testing, debugging, and performance optimization across both hardware and software components
• Collaborate with product and design teams to define use cases, user experience, and product requirements
• Evaluate new technologies, sensors, and components to improve device capabilities and reliability
• Document designs, prototypes, and learnings to support iteration and potential production scaling
• Support transition from prototype to early-stage production, including vendor coordination if applicable

• 3–7+ years of experience in hardware engineering, embedded systems, or wearable device development
• Strong experience with embedded programming (C/C++, Python, or similar)
• Hands-on experience with microcontrollers (e.g., Arduino, ESP32, STM32) and common communication protocols (BLE, Wi-Fi, UART, I2C, SPI)
• Experience designing and debugging hardware prototypes, including basic circuit design and PCB development
• Familiarity with sensors commonly used in wearables (motion, biometric, environmental, etc.)
• Ability to move quickly from concept to prototype with a strong bias toward action
• Strong problem-solving skills and comfort working in ambiguous, experimental environments
• Ability to collaborate across hardware, software, and product teams

• Experience building or shipping wearable products (e.g., smartwatches, fitness trackers, IoT devices)
• Familiarity with mobile app integration (iOS/Android) and Bluetooth connectivity
• Experience with rapid prototyping tools (3D printing, CAD design, etc.)
• Exposure to manufacturing processes and scaling hardware products
• Interest in the future of work, IoT, or connected devices for frontline workers

What We Offer

• A mission-driven and value-based company dedicated to empower deskless workers and local businesses
• An early employee opportunity at a Series B hyper-growth startup; work with the founding team and industry veterans to accelerate your career
• Competitive salary and equity
• Comprehensive health coverage: medical, dental, and vision. We pay 95% of your premiums for our employees and 85% for dependents
• In office amenities and stocked kitchen
• 401K Plan 
• Pre-tax commuter benefits
• Learning/development stipend
• Flexible PTO

Salary Range

In compliance with the California Pay Transparency Law, the base salary range for this role is between $120,000 - $170,000 in Menlo Park. This range is not inclusive of our discretionary bonus or equity package. When determining a candidate’s compensation, we consider a number of factors including skillset, experience, job scope, and current market data.