Jobs at Lightmatter

Own and grow major customer accounts across the full sales cycle. Build trusted relationships from engineers to C-suite, position Lightmatter solutions, coordinate cross-functional teams, forecast pipeline, lead negotiations, and close complex enterprise deals while expanding account footprint.

The role involves developing firmware for photonic products, collaborating across teams, defining architectures, and integrating with Data Center capabilities.

Design, layout, simulate, and test silicon photonic devices for integrated laser systems. Collaborate with packaging, systems, and characterization teams to validate devices, troubleshoot performance across manufacturing variability, and publish results. Support test plan development, foundry integration, and cross-functional product requirements.

Lead hands-on verification and characterization of high-speed electro-optic links: run lab measurements, build channel models, verify link budgets, characterize BER/eye/jitter/equalization, support silicon bring-up and cross-team debug, influence architecture, mentor engineers, and build automation tools.

Lead transition of next-gen hardware from design to mass production. Oversee product lifecycle, supplier readiness, ramp management, schedule, and financial targets.

Lead STA sign-off and timing closure for silicon-photonics ASICs across process nodes. Develop timing constraints, run full-chip STA, automate ECOs with Tempus/PrimeTime, collaborate with RTL/DFT/architecture teams, and document best practices for synthesis through PnR and tapeout signoff.

Develop and maintain photonics PDK components and pcells, ensure synchronization between layouts, netlists, and models, author LVS/DRC decks, perform device extraction and LVS troubleshooting, build automated regression and CI pipelines, and collaborate across design, layout, and modeling teams to support tape-outs.

Lead development of the internal photonics PDK: create Python-based pcells, build and verify compact models for active/passive devices, automate parameter extraction from FDTD/FEM solvers, validate models against lab measurements, implement CI/regression testing, and own netlist extraction and connectivity logic to ensure accurate system-level simulation.

Lead development of the internal photonics PDK: create Python-based pcells, build and verify compact behavioral models, automate parameter extraction from FDTD/FEM solvers, correlate models with lab measurements, implement CI/regression tests, and own netlist extraction and connectivity logic for circuit-level simulation.

Lead development of the internal photonics PDK and component library. Build Python-based pcells, create and validate compact models for active and passive devices, automate parameter extraction from electromagnetic solvers, and correlate models with lab measurements. Implement regression testing, CI pipelines, and robust netlist/connectivity logic to ensure layout, models, and simulations remain synchronized.

The Staff Mechanical Engineer will focus on mechanical design, structural analysis, GD&T, and FEA to enhance packaging technologies for AI architectures at Lightmatter.

The Physical Design Timing Engineer will drive backend digital execution, focusing on timing constraints, analysis, and closure on advanced CMOS technologies. Responsibilities include STA sign-off, collaborating with multiple teams, managing timing complexities, and automating timing ECO generation.

Responsible for timing constraints development, STA and timing closure on CMOS technologies, driving timing sign-off, analyzing power/performance tradeoffs, and running full-chip STA.

The Staff Physical Design Engineer will implement digital blocks using advanced tech nodes, focusing on timing closure and power integrity, while collaborating with teams on ASIC design.

The Staff Physical Design Engineer will implement digital blocks, ensure timing closure and power integrity, and perform physical verification for ASICs.

Lead system-level electrical design and integration for silicon photonics AI accelerators. Define hardware requirements, design power/memory/interconnect circuits, oversee PCB layout and manufacturability, validate and qualify electrical properties, perform lab validation, and collaborate with mechanical, IC, software, and manufacturing teams to bring products from concept to production.

Lead system-level electrical design for silicon-photonics AI accelerators: define requirements, design power/memory/interconnect circuits, oversee PCB layout and manufacturability, validate and qualify boards in lab, integrate cross-functionally, support contract manufacturing and vendor selection.

Research and model performance of Lightmatter-enabled hardware systems for ML training and inference. Build performance modeling tools, design rack-scale reference platforms, collaborate with product and engineering, publish academic and industry research, and act as the in-house ML systems expert.

The Photonics Technical Lead will create scalable laser solutions for silicon photonics AI communications, collaborating across teams to ensure design feasibility and meet performance specifications.

The Staff Electrical Test Engineer will develop and implement ATE test solutions for Silicon Photonics products, support manufacturing testing, collaborate with teams to debug failures, and enhance testing productivity with scripting.