Senior Firmware Engineer, Connectivity
Eight SleepSleep Technology company
San Francisco, United StatesSenior
Y Combinator
SoftBank Vision Fund
Khosla Ventures
General Catalyst
Founders Fund
HSG
Software Engineering
About the role
TL;DR
Develop and maintain the Bluetooth connectivity stack for Eight Sleep's Pod devices.
- •Join our team as a Sr.
- •Firmware Engineer, Connectivity, to own the wireless connectivity stack that brings a new generation of hardware to life.
- •Key Responsibilities Own the BLE Stack: Architect, implement, and maintain the Bluetooth connectivity layer across our Pod ecosystem.
- •Optimize for Always-On Devices: Drive radio-on time, advertising intervals, connection parameters, and PHY selection while maintaining low-latency sync of biometric data.
- •Ensure Bulletproof Interoperability: Deliver a connectivity experience that "just works" across the long tail of iOS and Android devices, OS versions, and real-world RF environments.
- •Requirements Proven BLE Expertise: 5+ years of embedded software engineering, with at least 3 years shipping production BLE firmware.
- •Deep Protocol Knowledge: Strong working knowledge of the Bluetooth stack end-to-end
- •GAP, GATT, SMP, L2CAP, link layer behavior, advertising and scanning, connection events, pairing/bonding, and BLE security (LE Secure Connections, key management).
- •Silicon Vendor Stacks: Hands-on experience with at least one vendor BLE stack and SDK (Nordic SoftDevice / nRF Connect SDK / Zephyr, Apple/Broadcom, TI, or similar).
- •Comfortable reading and debugging vendor stack source.
Required skills
C++
Domain expertise
healthtech
Tech stack
C++PythonNode.js