Senior Firmware Engineer: Connected Devices & OTA

SR2; San Francisco (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

SR2 is seeking a Senior Firmware Engineer in San Francisco to own firmware from bring-up to production. You will ship firmware to connected devices, enable OTA updates, and use telemetry to diagnose field issues.

This high-ownership role offers autonomy, fast pacing, and visible impact. You will work with hardware teams to advance boards from prototype to production and drive tooling improvements.

Qualifications

• 5+ years of production firmware experience in C/C++ and scripting or tooling in Python/Node.js.
• Experience with resource-constrained MCUs.
• Driver development for interfaces such as UART, I2C, SPI and USB with DMA.
• Shipped firmware to connected devices in the field including OTA updates and monitoring.
• Comfortable with schematics, datasheets, oscilloscopes and logic analyzers.

Responsibilities

• Bring up new boards and peripherals from prototype to production.
• Write efficient, reliable firmware and low-level drivers for microcontrollers.
• Ship over-the-air updates and use device data to diagnose issues in the field.
• Improve firmware tooling, CI and automated hardware testing.
• Support production builds and factory testing with manufacturing partners.

Skills

Firmware

C/C++

Python/Node.js

MCU experience

Diagnostics

Job description

SR2 is seeking a Senior Firmware Engineer in San Francisco to own firmware from bring-up to production. You will ship firmware to connected devices, enable OTA updates, and use telemetry to diagnose field issues.

This high-ownership role offers autonomy, fast pacing, and visible impact. You will work with hardware teams to advance boards from prototype to production and drive tooling improvements.