Firmware Principal Engineer
Core
Architect, develop, and bring up embedded firmware for advanced optical modules and optical engines, defining control architectures and collaborating with optical systems, DSP, and ASIC teams.
Role type
Principal firmware engineer (optical engines/modules)
Builds
Optical module and optical engine control subsystems, PIC control algorithms, and manufacturing/test firmware
Domain
Optical communications / Photonic integrated circuits
Required skills
Embedded firmware architecture, ARM/RISC-V control architectures, PIC control algorithms, CMIS implementation, ASIC digital requirements, CI/CD flow design, Root-cause analysis, Technical mentorship
Preferred skills
Experience with optical engine firmware, Calibration algorithms, Manufacturing test firmware
Technologies
ARM, RISC-V, CMIS, PIC, DAC/ADC, CI/CD
Responsibilities
Architect, develop, debug, and release embedded firmware for optical engine platforms; Define MCU/processor, memory, boot, and peripheral requirements for optical module and optical engine control subsystems; Generate and own digital requirements and specifications for custom optical control ASICs; Partner with ASIC, RTL, verification, optical systems, and DSP teams to drive architecture definition, implementation alignment, bring-up, and debug; Develop firmware for PIC control algorithms and integrated photonic IC control functions; Implement and maintain CMIS-compliant firmware for module control, telemetry, diagnostics, state management, and host interfaces; Lead firmware and digital bring-up for new optical module, optical engine, and control ASIC platforms; Develop firmware for manufacturing, test, screening, calibration, and production enablement; Define and improve the firmware development flow, including build and release processes, automated testing, regression coverage, and continuous integration (CI); Drive root-cause analysis across lab bring-up, qualification, manufacturing, and field-return scenarios; Mentor engineers through technical leadership, design reviews, code reviews, and debug support.
Seniority
Principal, hands-on IC with mentorship
