Lightmatter
lightmatter.co
Actively hiring
AI Chips & Accelerators
Optics & Photonic Components
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People
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Jobs
Financials
How Lightmatter hires
Truth index
B 79/100
Median time to fill
50 days
Ghost roles
0%
Stale roles
83%
Reposted roles
0%
Lightmatter scores B on the Alion truth index (A is best, E worst), measured over 18 open roles re-checked against its own hiring board: 0% look like ghost listings, 83% have gone stale and 0% are the same role posted again. Its roles close in a median of 50 days. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Visa sponsorship
- United States · H-1B filings in 12 months: 27 · green card filings: 1
Overview
Lightmatter is a photonic computing and interconnect company headquartered in Mountain View, California, and founded in 2017. The company develops photonic chips, light engines, and interconnect platforms designed to scale AI supercomputers by replacing traditional electrical I/O with optical technology. It operates as a venture-backed firm collaborating with major semiconductor manufacturers and standards bodies to provide high-bandwidth, energy-efficient infrastructure for large-scale AI training and inference.
News
Lightmatter Joins Open CPX MSA With Bidirectional Passage L20 Module
Lightmatter joined the Open CPX Multi-Source Agreement (MSA) and introduced the Passage L20 CPX optical module in a September 17, 2026 announcement, which the company described as the first Open CPX module for AI infrast...
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Lightmatter Joins Open CPX MSA, Introduces the Industry's First Bidirectional CPX Optical Engine
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Industry Leaders Formally Launch CPO System Architecture Initiative Within the Open Compute Project
19-company industry coalition publishes 300-page foundational white paper to standardize silicon photonics-ready infrastructure for AI MOUNTAIN VIEW, Calif.
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Lightmatter launches 19-company strong initiative to standardize silicon photonics-ready infrastructure
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EMIB-T, HBM4 Challenges, Microfluidic Cooling, Photonic Interconnects
ECTC 2026 Roundup, Intel, TSMC, SK Hynix, Samsung, Micron, Marvell, Lightmatter, Microsoft
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Scale-Up is a Problem Made for Photonics
NVIDIA's announcement at GTC Taipei 2026 that NVLink Fusion will extend to photonic interconnects marks a pivotal moment where AI infrastructure scaling meets the inevitable demands of physics. Lightmatter is bringing Passage interconnects and Guide laser
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Scale-Up is a Problem Made for Photonics
NVIDIA's announcement at GTC Taipei 2026 that NVLink Fusion will extend to photonic interconnects marks a pivotal moment where AI infrastructure scaling meets the inevitable demands of physics. Lightmatter is bringing Passage interconnects and Guide laser
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Report
Lightmatter Joins NVIDIA NVLink Fusion and Powers Next-Generation AI Infrastructure with Photonic Interconnects
TAIPEI, Taiwan, June 03, 2026--Lightmatter, the leader in photonic (super)computing, today announced it has joined the NVIDIA NVLink Fusion ecosystem to accelerate the deployment of high-performance optical connectivity for AI infrastructure. Through this
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Tech stack
Technologies named in job postings at Lightmatter over the last 12 months, by layer, with the share of postings for each.
Technologies in use
49
Postings analysed
88
Stack modernity
72/100AI adopter
Languages
Python69%
MATLAB25%
Verilog15%
C++14%
Frameworks & libraries
Pytest7%
NumPy6%
SciPy6%
UVM3%
Databases
Snowflake1%
Cloud & platforms
Linux5%
FreeRTOS3%
GitHub Actions2%
GitLab CI2%
AI & ML
BERT1%
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Full Lightmatter tech stack
49 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$235k
Typical range
$130k – $350k
Open positions
48
46
Jobs
Intern
4.3%
Middle
4.3%
Senior
26.1%
Staff
45.7%
Principal
6.5%
Architect
13%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Intern | 2 | $132k | $130k – $134k |
| Middle | 2 | $194k | $176k – $212k |
| Senior | 12 | $216k | $165k – $350k |
| Staff | 21 | $240k | $193k – $286k |
| Principal | 3 | $317k | $300k – $350k |
| Architect | 6 | $311k | $217k – $326k |
Highest paying role
Senior Account Manager
$350k
Normalized to USD per year
All salaries at Lightmatter
By role, level and city, against the market · 48 jobs with pay
People
Thomas Graham
Executive Officer
Darius Bunandar
Executive Officer, Director
Nicholas Harris
Executive Officer, Director
Colin Sturt
Executive Officer
Simona Jankowski
Executive Officer
Santo Politi
Director
Stan Reiss
Director
Jeffrey Smith
Director
Erik Nordlander
Director
Kushagra Vaid
Director
Olivia Nottebohm
Director
Richard Beyer
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Growth
Hiring Momentum
60/100
Growing
Open positions
62
7 opened / 12 closed in 30 days
Median time-to-fill
51 days
faster than 27% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Hardware
33% ▲
Industrial Engineering
24% ▼
QA
16% ▲
Data Science
8% ▲
Product
8% ▼
DevOps
6% ▼
Actively hiring for Hardware (+6 in 30 days)
Activity Timeline
Added C to stack
Sep 2026
Added QEMU to stack
Sep 2026
Added Jenkins to stack
Sep 2026
Added GitLab CI to stack
Sep 2026
Added GitHub Actions to stack
Sep 2026
Added Embedded C to stack
Sep 2026
Added Machine Learning to stack
Sep 2026
Added Linux to stack
Sep 2026
Added RTOS to stack
Sep 2026
Added FreeRTOS to stack
Sep 2026
Added Agile to stack
Sep 2026
Added TPU to stack
Aug 2026
Offices
Where the company hires and what each office is for
Cities
4
Hiring now
3
Countries
3
Busiest office
Mountain View
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Headquarters
Builds here
Office with open vacancies
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Mountain View
United States
HQ
250 Bryant Street
46 open roles 35 posted in 90 days 65% engineering 1000-5000 est. staff $243k Avg Salary
hires for Hardware, Industrial Engineering, Data Science
250 Bryant Street, Mountain View, CA 94041
Boston
United States
Engineering / R&D
Get in touch directly
23 open roles 20 posted in 90 days 74% engineering 500-1000 est. staff $238k Avg Salary
hires for Hardware, Data Science, DevOps
Toronto
Canada
Engineering / R&D
Mountain View, CA
15 open roles 9 posted in 90 days 80% engineering 200-500 est. staff $240k Avg Salary
hires for Data Science, DevOps, Industrial Engineering
Hsinchu
Taiwan
Regional office
新竹市, Hsinchu City, Taiwan
Jobs
$186k – $250k per year • Equity • Hybrid • 8+ years exp • Bachelor's Degree • Mountain View
Machine Learning
DevOps
HPC
Design
SolidWorks
AutoCAD
Management
Agile
Apply
$134k – $189k per year • Equity • Hybrid • 5+ years exp • Bachelor's Degree • Mountain View
HPC
Apply
$150k – $200k per year • Equity • Hybrid • 5+ years exp • PhD • Mountain View • Boston
Python
HPC
Chips/EDA
Cadence Virtuoso
Apply
≈ $109k – $223k per year (Estimated) • Equity • Hybrid • PhD • Toronto
Python
MATLAB
HPC
Apply
$212k – $326k per year • Equity • Hybrid • 12+ years exp • Master's Degree • Boston • Mountain View
Python
Verilog
MATLAB
HPC
Chips/EDA
Ansys HFSS
Keysight ADS
Apply
≈ $189k – $377k per year (Estimated) • Equity • Hybrid • 12+ years exp • Master's Degree • Toronto
Python
Verilog
MATLAB
HPC
Chips/EDA
Ansys HFSS
Keysight ADS
Apply
≈ $189k – $366k per year (Estimated) • Equity • Hybrid • PhD • Toronto
Verilog
HPC
Apply
$212k – $321k per year • Equity • Hybrid • PhD • Boston • Mountain View
Verilog
HPC
Apply
≈ $131k – $254k per year (Estimated) • Equity • Hybrid • 8+ years exp • Bachelor's Degree • Toronto
Python
C
C++
Embedded C
DevOps
GitHub Actions
GitLab CI
CI/CD
Jenkins
QEMU
HPC
IoT
FreeRTOS
QA
Pytest
Apply
$226k – $317k per year • Equity • Hybrid • 15+ years exp • Bachelor's Degree • Mountain View
HPC
Apply
≈ $197k – $354k per year (Estimated) • Equity • Hybrid • 5+ years exp • Bachelor's Degree • Boston
HPC
Management
Smartsheet
Microsoft Project
Jira
Apply
$189k – $210k per year • Equity • Hybrid • 5+ years exp • Bachelor's Degree • Mountain View
HPC
Management
Smartsheet
Microsoft Project
Jira
Apply
Financials
Total raised
$400M
Latest round
Series D
Funding rounds
1
Funding rounds
| Round | Announced | Amount | Valuation | |
|---|---|---|---|---|
| Series D | 2024 | $400M | $4.4B | Details |