Jobs at Lightmatter

Design and develop photonics architecture solutions for high-volume products, collaborate with engineering teams, and validate models through experiments.

Lead system-level electrical design for silicon photonics AI accelerators: define requirements, design power/memory/interconnect circuits, select components, oversee PCB layout and manufacturability, validate in lab, integrate cross-functionally, support manufacturing, and research new components and processes.

Design and develop photonics components and subsystems for high-performance AI data center engines. Collaborate with cross-functional teams to deliver manufacturable designs, create and maintain documentation, support integration and testing, and drive technical solutions that impact performance, scalability, and product roadmap.

Lead technical writing for customer-facing content, ensuring quality and technical accuracy while collaborating with cross-functional teams. Manage documentation workflows and innovate with AI tools.

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 and maintenance of photonics process design kits and design automation flows. Build tools and integrations to support chip and system designers, troubleshoot design issues, collaborate with cross-functional teams, and ensure compliant deliverables that accelerate photonics-enabled AI data center products.

Lead design of high-speed analog/mixed-signal transceivers for silicon photonics systems. Drive block specifications with cross-functional teams, run post-layout and mixed-signal simulations, validate circuits in lab, define test plans, document designs, and mentor junior engineers.

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, ensure timing closure and power integrity, and perform physical verification for ASICs.

The Sr./Principal Mixed-Signal Digital Architect will design digital circuits for photonic-based communication, collaborate with teams, and lead product development.

Develop high-speed analog transceiver solutions, design analog/mixed-signal blocks, collaborate across teams, and validate circuit performance in the lab.

Develop and extend device software and firmware for photonic AI processors, collaborating with multidisciplinary teams on system integration and control mechanisms.

The Design Verification Engineer will rigorously verify designs using UVM techniques, collaborating closely with digital and analog design experts, while defining DV methodologies and ensuring quality tapeouts.

The Principal Machine Learning Infrastructure Researcher will drive innovation in hardware systems for AI, collaborate on designs, publish research, and lead a team of engineers.

The Photonics Technical Lead develops scalable laser solutions for silicon photonics, collaborating with cross-functional teams and overseeing product design and validation.