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Lightmatter

Lightmatter jobs

Lightmatter combines photonics and computing for AI.

56 open roles at Lightmatter

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Validate mixed-signal architectures for photonic communication products, from concept through production, collaborating across chip design, software, and validation teams to shape specifications, test methods, and product roadmaps.

Mixed-signal Architecture ValidationAMS Design FlowsPhotonic Communication ChannelsHigh-speed Analog And Photonic Links

Lead customer high-speed I/O design support for photonic interconnect solutions, from technical assessment and architecture through design reviews and hardware debugging, while guiding customers and internal teams.

High-speed Serial I/OSerdesTransceiver ArchitectureCDR

Leads thermo-mechanical simulation and validation for advanced photonics packaging, identifying reliability risks and guiding design, material, and process choices for high-performance AI systems.

Finite Element AnalysisAnsysAbaqusThermal-structural Simulation

Lead physical implementation of complex digital blocks and high-performance ASICs, driving timing closure, power integrity, physical verification, and design optimization at advanced process nodes.

Physical DesignASIC ImplementationAdvanced Process NodesTiming Closure

Lead hardware bring-up and develop automated system-level tests for photonic IC products, partnering across design, firmware, and manufacturing to debug hardware and scale testing through production.

Hardware Bring-upPCBA Functional TestingATE Loadboard And Socket IntegrationAsics And Socs

Develop embedded software and firmware for photonic AI processors and interconnects, shaping control-plane and diagnostics architectures while collaborating across software, hardware, and systems teams.

Embedded SoftwareFirmware DevelopmentDevice DriversKernel Development

Architect and execute package- and system-level test strategies for high-speed I/O, leading electrical characterization, link bring-up, and stress testing from lab validation through manufacturing transition.

High-speed Serial I/O CharacterizationSerdes TestingTransceiver TestingSignal Integrity

Architect high-speed analog and mixed-signal solutions for optical transceivers, defining circuit specifications and collaborating across analog, digital, photonic, and software teams to deliver high-volume products.

Analog And Mixed-signal ArchitectureOptical TransceiversHigh-speed Circuit DesignAdvanced CMOS

Architect high-speed analog and mixed-signal solutions for optical transceivers, defining and validating specifications while partnering across analog, digital, photonics, and software teams.

Analog And Mixed-signal ArchitectureOptical TransceiversHigh-speed Circuit DesignTias

Define digital architecture for high-speed photonic and mixed-signal communication chips, guiding designs from concept through production and enabling interfaces across hardware, firmware, and software.

Digital ArchitectureHigh-speed AMS ElectronicsPhotonic Communication CircuitsDigital Circuit Design

Architect digital circuits for high-speed photonic communication chips, defining system-level designs and specifications that integrate mixed-signal and photonic devices with firmware and software interfaces.

Digital ArchitectureHigh-speed Digital DesignMixed-signal (ams) ElectronicsPhotonic Communication Circuits

Design and build photonic test systems, leading chip bring-up, electro-optic link testing, characterization, and validation of silicon photonics optical interconnect products.

Photonics TestingChip Bring-upElectro-optic Link TestingLink-level Characterization

Lead hands-on characterization, validation, and root-cause analysis of semiconductor lasers and optical amplifiers, developing automated measurement methods and translating device data into engineering guidance.

Semiconductor Laser CharacterizationSemiconductor Optical Amplifier CharacterizationLaser PhysicsOptical And Electro-optical Measurements

Drive static timing analysis, constraint development, and timing closure for silicon photonics chips, from synthesis and place-and-route through full-chip signoff and tapeout across advanced CMOS technologies.

Static Timing Analysis (sta)Timing Constraints DevelopmentTiming ClosureASIC Physical Design

Develop scalable silicon photonics systems for AI communications and computation, translating product requirements into engineering plans and delivering designs validated on hardware.

Silicon PhotonicsPhotonics Systems EngineeringPhotonic DevicesPhotonic Integrated Circuits

Architect wafer-, package-, and system-level characterization and test strategies for silicon photonics products, developing test platforms, automation, and production-ready methods with design and validation teams.

Silicon PhotonicsPhotonics Characterization And TestingWafer-level TestingPackage-level Testing

Lead machine learning systems research, model training and inference performance on photonics-enabled platforms, shape rack-scale reference designs, and publish research while guiding a small team of ML engineers.

Machine Learning Systems ResearchPerformance EvaluationPerformance ModelingDeep Learning

Own digital architecture for high-speed photonic communication chips, guiding mixed-signal integration from concept through production while leading cross-functional design, verification, customer collaboration, and silicon bring-up.

Digital ArchitectureMixed-signal (ams) DesignRTL DevelopmentSystem-on-chip Architecture

Implement complex digital blocks and drive physical design signoff for high-performance ASICs, owning timing closure, power optimization, floor planning, clock implementation, and physical verification in advanced process nodes.

Physical DesignASIC ImplementationAdvanced Process NodesTiming Closure

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