Firmware Engineer

Firmware Engineer (Embedded Systems | Wearables) Full-Time | On-site | Austin, TX $145K – $175K + Equity
About the OpportunityThey are building a genuinely category-defining wearable-style consumer health device, a connected, battery-powered product designed to make continuous health tracking effortless and actionable.
Their long-term vision is ambitious: transforming how people monitor and understand their health, with the potential to enable early detection of serious conditions through passive, everyday use.Backed by experienced founders who have previously scaled high-growth technology companies, they’ve recently closed significant funding and are now entering a critical phase of product development and scale.
This is a rare opportunity to join extremely early and take full ownership of a core part of the product.
The RoleThey are looking for a Firmware Engineer to take ownership of the entire embedded firmware stack for a connected wearables / consumer hardware device.
This is a hands-on, high-impact role where they will be responsible for everything from early hardware bring-up through to production firmware, OTA updates, and fleet reliability.The position is fully on-site in Austin to enable rapid iteration, real-world debugging, and close collaboration with hardware and backend teams.
What You’ll Be Doing

• Own the firmware stack end-to-end - from hardware bring-up through to production deployment and OTA updates
• Drive aggressive power optimisation toward a ~60-day battery life target
• Debug and stabilise noisy, real-world sensors to ensure consistent device performance
• Build and maintain robust OTA systems where reliability is critical at scale
• Collaborate closely with hardware and backend teams to ensure seamless device-cloud interaction
• Take full responsibility for firmware quality, performance, and long-term maintainability

What They’re Looking For Must-Have Experience

• Strong embedded C development experience
• Proven track record shipping production firmware on connected, battery-powered devices
• Deep experience with power optimisation
• Experience building and maintaining OTA update systems in production environments

Highly Valued

• Wearables or consumer health device experience (e.g. fitness trackers, smart devices)
• Experience debugging and stabilising real-world sensor data
• Hardware bring-up experience (from early prototypes to production)
• Experience working with MCUs, RTOS, and BLE-based systems

Tech Environment

• Embedded C
• MCU-based systems
• RTOS
• BLE connectivity
• Real-time, resource-constrained environments

Why This Role Stands Out

• Full ownership of the firmware stack - not just a small piece of a large system
• Deep technical challenges across power optimisation, sensor reliability, and OTA at scale
• Greenfield opportunity to define how firmware is built and scaled
• Immediate impact - stepping into a role with clear ownership and responsibility
• Small, high-calibre team where contributions directly shape the product

Compensation & Benefits

• Base salary: $145K – $175K (flexibility for exceptional candidates)
• Equity: 0.1% – 0.3%
• Strong funding and runway
• Visa sponsorship available (H1B transfers supported only)

Location & Working Style

• On-site, 5 days per week in Austin, TX
• Fast-paced, highly collaborative environment
• Ideal for engineers who enjoy hands-on debugging and rapid iteration

The Bigger PictureThey are building something entirely new in the wearables and consumer health space - a product with the potential to become a daily health signal for millions of people.
For engineers motivated by ownership, technical depth, and meaningful real-world impact, this is a rare early-stage opportunity with significant upside.
For more information, get in touch with Hannah Stevens at Oakmont Consulting - hannah@oakmontconsulting.co.uk