# Firmware Engineer at Lumentum

- Company: Lumentum
- What the company does: Discover how Lumentum enables innovation through optical and photonic technologies for cloud networking, 3D sensing, lasers, and advanced manufacturing.
- Company website: https://www.lumentum.com
- Type: Startups
- Level: Mid level
- Location: USA - CA - San Jose (Ridder)
- Work setup: On-site
- Posted: 2026-09-22
- Apply by: 2026-11-06
- Apply: https://lumentum.wd5.myworkdayjobs.com/en-US/LITE/job/USA---CA---San-Jose-Ridder/Firmware-Engineer_20261253
- Page: https://www.1752.vc/careers/jobs/lumentum-firmware-engineer/

## About the role

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us! As a Firmware Engineer at Lumentum Operations LLC, you will be instrumental in developing, testing, and maintaining embedded software for our cutting-edge optical products. This role involves working across the full firmware development lifecycle to ensure high-performance and reliable operation of our devices.

## What they're looking for

- 3+ years of experience in embedded firmware development, preferably in the optical networking or telecommunications industry
- Proficiency in C/C++ programming for embedded systems
- Experience with bare-metal and real-time operating systems such as FreeRTOS, or similar
- Strong understanding of microcontroller architectures (e.g., ARM Cortex-M/R based) and peripheral interfaces (I2C, SPI, UART, USB, Ethernet)
- Familiarity with hardware/software co-design and debugging tools (oscilloscopes, logic analyzers, in-circuit debuggers)
- Experience with version control systems (e.g., Git)