Senior Embedded Firmware Engineer
Lumilens
Senior Embedded Firmware Engineer
Lumilens
Photonic interconnects for AI infrastructure
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 designs and manufactures optical interconnect products to accelerate AI infrastructure. It provides high-density photonic interconnects—such as high-density pluggable, near-packaged, and co-packaged optics—built with in-house silicon photonics to scale GPU clusters in AI data centers. Its products include 800G and 1.6T optical transceivers for AI networking, and it is pursuing broader integration like Electrical-Optical Interposers through a strategic partnership with POET Technologies. The company differentiates itself through vertical integration, custom robotics-driven manufacturing, and AI-optimized production processes that aim to improve yield and supply chain stability. Lumilens targets hyperscalers and large AI providers, seeking to move interconnect bottlenecks from compute to scalable, efficient data-center networks. Its goal is to enable faster, denser GPU connectivity to support growing AI workloads and models.
Explore more opportunities at Lumilens