Mill
Senior Firmware Engineer
At a Glance
- Location
- San Bruno, California, United States
- Experience
- 5+ years
- Posted
- 2026-03-31T15:40:50-04:00
Key Requirements
Required Skills
Domain Knowledge
- Cloud
- Embedded Systems
- Engineering
Requirements
Deep understanding of computer networking and firmware for data-intensive applications.
Strong expertise in C programming for embedded systems, with a solid grasp of memory management and real-time operating system principles.
Hands-on experience with connectivity modules (Wi-Fi, Bluetooth) and RTOS (FreeRTOS preferred).
Proficiency in hardware-software interfacing, including protocols like GPIO, I2C, SPI, and JTAG.
Proficiency with troubleshooting tools (debuggers, Wireshark) and measurement equipment (multimeters, oscilloscopes, logic analyzers).
Demonstrated expertise in debugging and rigorous testing to quickly identify and resolve complex issues.
Responsibilities
Design and implement robust firmware on MCU platforms, ensuring support for wireless connectivity, data upload, OTA updates, sensor integration, and other core functionalities.
Develop and optimize communication stacks for Wi-Fi, Bluetooth, and other wireless protocols, ensuring reliable pairing, network configuration, and data exchange.
Write efficient low-level code that integrates with hardware peripherals (e.g., RF modules, sensors) using standard interfaces such as GPIO, I2C, SPI, and UART.
Apply best practices for error handling and performance optimization to support robust connectivity features.
Work closely with cross-functional teams to rigorously debug, test, and troubleshoot firmware, ensuring optimal performance, reliability, and security.
Engage actively with multidisciplinary teams, sharing insights and aligning on system-level requirements to drive cohesive project success.