About Lumilens
At Lumilens, we are building the critical photonics infrastructure that powers tomorrow’s AI supercomputing. From chip-to-chip optical interconnects to scalable photonic engines, Lumilens is unlocking a new era of computing—faster, cooler, and massively more efficient. Join our collaborative team to help shape the future of high-speed optical connectivity.
We are seeking a mid-senior level Embedded Firmware Engineer with 10-12 years of experience in networking and semiconductor domains, ideally with an optical background. The successful candidate will have hands-on development and design experience on 32-bit microcontrollers, preferably with ARM-based architectures, and will contribute to the creation and delivery of advanced embedded solutions.
Independently drive firmware design, development, and feature delivery for high-performance networking and optical semiconductor products
Develop and maintain device drivers, real-time operating systems (RTOS) integration, and communication protocol implementations
Design, code, test, and debug embedded firmware primarily in C for ARM-based controllers
Collaborate closely with cross-functional teams including hardware, DSP, and software engineers
Manage, configure, and optimize build environments and makefiles
Contribute to design reviews, feature definition, and product delivery schedules
Bachelor’s or Master’s degree in Electronics, Computer Engineering, or related field
10-12 years of experience developing embedded firmware on 32-bit microcontrollers, preferably ARM architecture
Strong knowledge of C programming, RTOS, device driver development, and communication protocols (e.g., SPI, I2C, UART, Ethernet)
Experience in networking and semiconductor industries, ideally with exposure to optical technologies
Solid understanding of DSP concepts and implementations
Good knowledge of build environments and makefile management
Demonstrated ability to independently manage tasks, drive designs, and deliver features
Strong analytical, organizational, and communication skills
Work at the forefront of AI, networking, and optical semiconductor technology
Collaborative and innovative environment
Opportunities for career growth
Competitive salary and comprehensive benefits package
Lumilens is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or any other protected characteristic.
Lumilens addresses the red hot market for AI data center infrastructure by designing, manufacturing and selling photonic interconnect solutions. We design and use custom robotics + AI in our factories to more efficiently build our products.
Lumilens is backed by top-tier venture capital investors including Mayfield and Spark Capital.
