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Lumentum

Supplies photonic components for networks

Firmware Engineer

Embedded EngineeringConfirmed live in the last 24 hours
Full-timeSan Jose, CA, USAIn-person

About the Job

Requirements

  • A bachelor's or master's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field.
  • At least 3 years of experience in embedded firmware development, preferably in the optical networking or telecommunications industry.
  • Proficiency in C and C++ programming for embedded systems.
  • Experience with bare-metal and real-time operating systems such as FreeRTOS or similar.
  • Strong understanding of microcontroller architectures, such as ARM Cortex-M/R, and peripheral interfaces including I2C, SPI, UART, USB, and Ethernet.
  • Familiarity with hardware/software co-design and debugging tools such as oscilloscopes, logic analyzers, and in-circuit debuggers.
  • Experience with version control systems such as Git.
  • Ability to work independently and collaboratively.
  • Strong written and verbal communication skills.

Responsibilities

  • Design, develop, and debug firmware for new and existing optical modules, transceivers, and other products.
  • Implement embedded software for microcontrollers and other embedded systems, focusing on real-time operating systems and internal operation systems.
  • Develop and execute unit, integration, and system tests to ensure firmware quality and robustness.
  • Work with hardware engineers during the design phase to define firmware requirements and interfaces.
  • Work with manufacturing and test engineering teams to support product bring-up, debugging, and production ramp-up.
  • Contribute to architecture discussions and design reviews by providing input on firmware solutions.
  • Analyze and resolve complex firmware issues, including performance bottlenecks and stability problems.
  • Document firmware designs, specifications, and test plans.
  • Stay current with industry trends and emerging technologies in embedded systems and optical networking.

Desired Qualifications

  • Knowledge of digital signal processing or control systems.
  • Experience in the optical networking or telecommunications industry.

About the Company

Lumentum

Supplies photonic components for networks

Lumentum designs and manufactures optical and photonic components for data networks, data centers, sensing, and manufacturing, including diode lasers. Its devices convert electronic signals into light to enable high-speed data transmission and 3D sensing. The company differentiates itself with a broad, high-volume photonics platform that combines silicon photonics, laser diodes for 3D sensing, and integrated optical components for cloud, networking, and manufacturing, supporting large-scale deployment. Its goal is to increase the speed, flexibility, and efficiency of communication networks and sensing systems to meet growing cloud data traffic.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Jose, CA
Founded
2015

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