Embedded Engineer

San Francisco

Spire (YC W15) is looking for a Embedded Engineer to join our team.

Spire builds respiration sensing wearables. Our product changes lives.

Spire’s first product, a consumer wearable available at https://www.spire.io, uses respiratory patterns to infer a wearer’s state-of-mind (tense, calm, focused). The app provides feedback that's been proven to lower tension and increase calm and focus in everyday life. Clinical applications of the device and technology are currently being piloted.

The Spire sensor continuously and accurately tracks respiratory parameters (such as inhalation and exhalation time, apneic events, etc.) and activity (steps, gait, posture) in realtime, streaming raw data to a smartphone,and ultimately to our infrastructure. Each day we collect, store, and process over 10 billion data points.

You’ll be the key lead on our embedded team. We ship hardware, firmware, and mobile apps that work seamlessly in concert with a small and dedicated team. This is a role for a generalist who isn't afraid of the technical complexity of real-time connected devices, advanced ML algos and complex health applications.

What you'll do

    • Ownership of firmware and system architecture through prototyping, implementation, manufacturing, and further iteration
    • Develop embedded firmware in C that implements the architecture you’ve defined.
    • Invent the future feature set of wearable health products.
    • Experiment with and implement interfaces to various sensors.
    • Mentor team members as we expand our hardware engineering team.

What you'll need

    • 5+ years professional experience working in RTOS and bare metal environments.
    • Strong knowledge of micro-controller architectures and RTOS environments, hardware interfaces (SPI, UART, DMA), embedded sensors (accelerometers, ADC), power consumption management/optimization strategies, and embedded security practices.
    • Familiarity with low-power wireless protocol implementations (e.g. Bluetooth LE).
    • Experience in hardware bring-up.
    • Software testing and test-driven development experience.
    • Highly self-motivated and directed.
    • Keen attention to detail.

What's nice to have

    • You've used/abused logic analyzers, oscilloscopes, and power analyzers.
    • Experience building firmware test benches for factory environments.
    • Background in DSP/biomedical signal processing.
    • Experience with schematic capture and PCB layout.

What you'll get

    • A chance to fundamentally change the way people think about and improve their health.
    • Competitive salary and significant equity in a well-funded, high-growth company.
    • A defined problem to solve, a close-knit team, and significant opportunities for growth.
    • Healthcare, dental, unlimited vacation, and an unlimited Amazon budget.
    • Relocation (to SF) and/or visa assistance if needed.
    • The opportunity to help build a firmware team from the ground up.

Work with an incredibly driven team that loves building things together. And never eat lunch at your desk — it’s our only office rule.

Spire’s investors include Y Combinator, Rock Health, Stanford, Mayo Clinic, Kleiner Perkins Caufield Byers, and major unnamed strategic partners.

Come join us.