Lightmatter

Sr. Staff Physical Design Timing Engineer (STA)

In this job you will be responsible for timing constraints development, STA and timing closure on leading edge CMOS technologies and flows.

JobPosted 25 Sept 2026

Sr. Staff Physical Design Engineer

We are seeking a highly skilled Senior Physical Design Engineer to work on the implementation of complex digital blocks.

JobPosted 25 Sept 2026

Sr. Staff Physical Design Engineer

We are seeking a highly skilled Senior Physical Design Engineer to work on the implementation of complex digital blocks.

JobPosted 25 Sept 2026

Sr. Staff Physical Design Engineer

We are seeking a highly skilled Senior Physical Design Engineer to work on the implementation of complex digital blocks.

LightmatterBoston, MA

Sr. Staff Photonics Systems Engineer

This role requires a deep understanding of complex multi-domain platforms as well as integrated silicon photonics and the requirements of datacom systems.

LightmatterBoston, MA; Mountain View, CA

JobPosted 19 Oct 2026

Sr Staff Integrated Photonics Laser Systems Architect

We are hiring a Senior Staff Laser Architect to join our Laser System Architecture & Engineering (LSAE) team.

JobPosted 20 Oct 2026

Sr Staff Integrated Photonics Laser Systems Architect

We are hiring a Senior Staff Laser Architect to join our Laser System Architecture & Engineering (LSAE) team.

JobPosted 7 Nov 2026

Sr/Staff Digital Design Engineer

We are hiring a Digital Design Engineer to help develop an ASIC for the next-generation artificial intelligence computing architecture alongside a team of world-class scientists and engineers.

JobPosted 7 Nov 2026

Sr/Staff Digital Design Engineer

We are hiring a Digital Design Engineer to help develop an ASIC for the next-generation artificial intelligence computing architecture alongside a team of world-class scientists and engineers.

LightmatterBoston, MA

JobPosted 7 Nov 2026

Sr/Staff Digital Design Engineer

We are hiring a Digital Design Engineer to help develop an ASIC for the next-generation artificial intelligence computing architecture alongside a team of world-class scientists and engineers.

JobPosted 12 Nov 2026

Sr. Physical Design Flow & Methodology Engineer

We're looking for a Physical Design Flow & Methodology Engineer to help build the tools, flows and automation our physical design teams use to tape out high-performance ASICs and mixed-signal chips.

LightmatterBoston, MA

InternshipPosted 10 Nov 2026

Silicon, Hardware, & Photonics Engineering Intern – Summer 2027

The Engineering team at Lightmatter takes photonic computing from research to reality, overseeing silicon photonics manufacturing, system integration, and 3D Co-Packaged Optics (CPO) development across the full stack…

LightmatterBoston, MA; Mountain View, CA

Signal Integrity Engineer

We are looking for a Signal Integrity engineer to drive the next generation products from concept to development.

JobPosted 1 Oct 2026

Senior Laser & SOA Characterization Engineer

In this role, you will lead advanced characterization, bring-up, validation, and root-cause analysis of semiconductor lasers, tunable laser sources, DFB lasers, external-cavity lasers, laser diodes, and semiconductor…

Senior Account Manager

Lightmatter is seeking an experienced Senior Account Manager to take ownership of several major customer accounts.

JobPosted 10 Sept 2026

Principal Hardware Systems Technical Lead

We are looking for a talented Principal Engineer to provide technical leadership to the Hardware Systems organization to help us build the next generation of silicon photonics based artificial intelligence accelerators…