Embedded Software Engineer (Lasers)

• Lightmatter builds chips that enable extreme-scale artificial intelligence computing clusters. Join a multidisciplinary team to pioneer the future of computing by building the world’s most advanced communications lasers
• In this role you will help build the control plane and diagnostics software behind next-generation photonic interconnect products - implementing laser control and stabilization routines, the telemetry and monitoring firmware that keeps them healthy in the field, and the tooling that brings new hardware to life
• You will work shoulder-to-shoulder with photonic, analog, digital, and systems engineers, own well-defined pieces of the stack end to end, and grow your depth in a domain where very few engineers have experience. Your work will be visible in every product we ship
• Implement and tune active laser control and stabilization algorithms on embedded targets, working from architecture and control approaches defined with the cross-functional design team
• Own delivery of well-scoped firmware components for photonic transceiver diagnostics, telemetry, and monitoring; from requirements through bring-up, test, and release
• Contribute to control plane and diagnostics architecture discussions across a multidisciplinary team of photonic, analog, digital, systems, and network engineers
• Integrate transceiver management and telemetry with data center administration interfaces such as CMIS, OpenBMC, and DMTF standards
• Bring up new hardware alongside hardware engineers, and debug embedded systems using GDB, JTAG, logic analyzers, and oscilloscopes
• Characterize and debug laser behavior using optical test and measurement equipment, and build the automated test and data collection scripts that make that work repeatable
• Adapt existing practices where they fit and devise new approaches where precedent is limited, working independently with review at critical checkpoints
• Write clear documentation and share findings with engineers outside your specialty, adapting how you communicate to the audience

Benefits

• Commuter benefit
• 401(K)
• Happy hour -Spend time together and build friendships
• Generous vacation policy and holidays
• Opportunity to learn from your peers and teach them what you know across electronics, photonics, machine learning, and more

• Solid understanding of hardware-software integration, including common embedded peripherals and buses (I2C, SPI, UART, GPIO)
• Working knowledge of Git, and experience with CMake or a comparable build system
• Degree in Computer Science, Electrical Engineering, Robotics, or a related technical field
• Experience developing firmware in resource constrained environments; experience in both bare-metal and RTOS systems preferred. FreeRTOS, Zephyr or other modern RTOS experience preferred
• Experience contributing embedded software to a product that shipped to customers, or to hardware that reached production or field deployment
• Proficiency in C or C++, and comfort with Python for tooling, test, and analysis
• Hands-on lab experience debugging embedded systems with GDB, JTAG, logic analyzers, or oscilloscopes
• BS and 5+ years of experience, MS and 3+ years of experience, or a PhD; equivalent practical experience also considered
• Demonstrated ability to take ownership of a defined problem, work through ambiguity, and deliver on commitments in a fast-moving environment
• Coursework, research, or industry experience in closed-loop control: designing, simulating, or deploying control algorithms on real systems
• Experience developing firmware for optical transceivers, photonic systems, or other precision analog/mixed-signal hardware
• Familiarity with CMIS, OpenBMC, DMTF/Redfish, or similar platform management environments
• Exposure to optical communication systems, laser physics, or thermal and wavelength stabilization techniques
• Familiarity with optical test and measurement, and with methodologies for characterizing optical components and systems
• Experience building test automation, hardware-in-the-loop test benches, or CI for firmware
• A track record of learning unfamiliar technical domains quickly and becoming the person teammates come to with questions