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Firmware Engineer

Lumentum · USA - CA - San Jose (Ridder) · On-site

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About Lumentum

Discover how Lumentum enables innovation through optical and photonic technologies for cloud networking, 3D sensing, lasers, and advanced manufacturing.

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)
More about this role

It's fun to work in a company where people truly BELIEVE in what they're doing!

We're committed to bringing passion and customer focus to the business.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

At Lumentum, we’re building the tech behind the world’s fastest networks and most advanced systems. Our optical and photonic solutions power everything from AI and cloud computing to data centers, telecom, and advanced manufacturing.

We’re a global team of innovators working where light meets technology, solving big challenges that keep the world connected and moving forward. If shaping the future of connectivity excites you, you’ll fit right in.

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 You’ll Be Doing

  • Design, develop, and debug firmware for new and existing optical modules, transceivers, and other Lumentum products.
  • Implement embedded software...

Read the full posting on Lumentum's site ↗

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