Lumilens · 12 hours ago
Optical Systems Engineer
San Jose, CA
Full-time
Onsite
Mid, Senior LevelLumilens is a well-funded startup focused on building photonics infrastructure for AI supercomputing and high-performance computing. As an Optical Systems Engineer, you will lead the design and development of optical transceiver products, defining specifications and analyzing system performance to enable innovative data center and AI applications.
ManufacturingProduct DesignTelecommunications
Responsibilities
Lead the design of optical transceiver products from concept through implementation
Define specifications and develop comprehensive end-to-end optical system models, including digital signal processing (DSP), drivers, transimpedance amplifiers (TIA), and optical components such as lasers, Mach-Zehnder modulators (MZMs), and photodetectors
Perform signal integrity analysis and implement and simulate digital equalization techniques such as FFE, DFE, MLSD, and pre-emphasis for signal integrity optimization
Define verification testing requirements both for transceivers and components
Analyze the impact of impairments such as noise, crosstalk, non-linearity, and reflections on system performance
Conduct both numerical and analytical simulations to assess optical system behavior under realistic operating conditions
Correlate simulation models with experimental data at both module and component levels
Qualification
Required
Experience with transceiver design and high-speed optical communication systems and components
Familiarity with direct-detection and coherent optical communication architectures
Experience in modeling optoelectronic components (e.g., lasers, modulators, photodiodes, DAC, ADC, driver, TIA) using tools such as VPIphotonics, MATLAB, or Python
Familiarity with advanced DSP techniques, such as linear and decision-feedback equalization (FFE/DFE)
Knowledge of modeling on common impairments in high-speed optical links
Hands-on experience with high-speed optical component measurements using oscilloscopes, spectrum analyzers, and other relevant equipment
Strong communication skills
Willingness to travel (~20% of the time)
MS or Ph. D. in Engineering, Physics, Optics, or a related technical field
Benefits
Comprehensive benefits package, including health insurance
Professional development and certification opportunities
Access to cutting-edge optical/photonics test environments and tools
A collaborative, cross-functional team dedicated to solving some of the hardest challenges in photonics
Company
Lumilens
Lumilens creates photonics products designed for high-performance computing.
Founded in 2024
51-200 employees
H1B Sponsorship
Lumilens has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Growth StageTotal Funding
$145.7MKey Investors
Accton Technology
2025-05-07Series B· $115.7M
2024-05-16Series A· $30M
Company data provided by crunchbase