Lightmatter
AI Chips & Accelerators · Optics & Photonic Components

Lightmatter tech stack

Lightmatter builds mostly with Python, MATLAB, Verilog, C++. Its stack also includes Pytest, Linux, NumPy, FreeRTOS. Python is named in 65 of the 97 job postings Lightmatter published in the last 12 months (67%). Counted by Alion from the job postings of Lightmatter, updated Nov 11, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Nov 11, 2026
Technologies in use
58
Postings analysed
97
Open now
46
Modernity
70 /100
New in 6 months
8

What programming languages does Lightmatter use?

Python is named in 67% of job postings at Lightmatter, followed by MATLAB (24%), Verilog (15%), C++ (13%).

Python 65 67% required in 78% · 32 open now · since Jul 2025
MATLAB 23 24% required in 65% · 13 open now · since Jul 2025
Verilog 15 15% required in 100% · 6 open now · since Jul 2026
C++ 13 13% required in 77% · 3 open now · since Jul 2026
SystemVerilog 6 6% required in 83% · 5 open now · since Jul 2025
Java 5 5% required in 100% · since Jun 2026
Perl 3 3% optional · 3 open now · since Nov 2026
Embedded C 2 2% required in 100% · since Sep 2026
Show all (12)
C2
Bash1
C#1
JavaScript1

What frameworks and libraries does Lightmatter use?

Pytest is named in 6% of job postings at Lightmatter, followed by NumPy (5%), SciPy (5%), UVM (2%).

Pytest 6 6% optional · since Jan 2026
NumPy 5 5% required in 100% · 1 open now · since Jan 2026
SciPy 5 5% required in 100% · 1 open now · since Jan 2026
UVM 2 2% required in 100% · 2 open now · since Nov 2025

What databases does Lightmatter use?

Snowflake is named in 1% of job postings at Lightmatter.

Snowflake 1 1% optional · since Aug 2026

What cloud and platforms does Lightmatter use?

Linux is named in 5% of job postings at Lightmatter, followed by FreeRTOS (4%), GitHub Actions (2%), GitLab CI (2%).

Linux 5 5% required in 80% · 1 open now · since Jun 2026
FreeRTOS 4 4% required in 25% · since Sep 2026
GitHub Actions 2 2% required in 100% · since Sep 2026
GitLab CI 2 2% required in 100% · since Sep 2026
RTOS 2 2% required in 50% · since Sep 2026

What developer tools does Lightmatter use?

Git is named in 9% of job postings at Lightmatter, followed by Keysight ADS (8%), Cadence Virtuoso (7%), SolidWorks (6%).

Git 9 9% required in 67% · 1 open now · since Jan 2026
Keysight ADS 8 8% required in 100% · 4 open now · since Jul 2026
Cadence Virtuoso 7 7% required in 57% · 5 open now · since Jun 2026
SolidWorks 6 6% required in 67% · 3 open now · since May 2026
CMake 5 5% required in 100% · 1 open now · since Jul 2026
Cadence Xcelium 5 5% required in 100% · 5 open now · since Nov 2025
KLayout 5 5% optional · 1 open now · since Jan 2026
Ansys HFSS 4 4% required in 100% · since Jul 2026
Show all (29)
Synopsys VCS3
ANSYS3
Cadence Spectre2
Formal Verification2
Jenkins2
Siemens ModelSim2
Abaqus2
AutoCAD2
JMP2
QEMU2
Ansys SIwave1
Cadence Allegro1
InfiniBand1
NVLink1
Synopsys PrimeTime1
TPU1
Cadence Integrity 3D-IC1
Cadence Pegasus1
Siemens Calibre1
Simulink1
Synopsys IC Validator1

What AI and ML technologies does Lightmatter use?

BERT is named in 1% of job postings at Lightmatter.

BERT 1 1% optional · since Aug 2026

Which engineering practices does Lightmatter ask for?

HPC is named in 100% of job postings at Lightmatter, followed by CI/CD (7%), Machine Learning (5%), GD&T (1%).

HPC 97 100% required in 100% · 46 open now · since Mar 2025
CI/CD 7 7% required in 100% · 1 open now · since Jan 2026
Machine Learning 5 5% required in 100% · 2 open now · since Aug 2025
GD&T 1 1% required in 100% · 1 open now · since May 2026
AI Agents 1 1% optional · 1 open now · since Aug 2026
Statistical Process Control 1 1% optional · 1 open now · since Aug 2026

What does each Lightmatter team work with?

The technologies each team's postings require most often, with the number of postings that require them.

Hardware

35 postings
Python18
Verilog6
C++5
CMake5
Git5
MATLAB5

Industrial Engineering

16 postings
Python10
NumPy3
SciPy3
Keysight ADS2
MATLAB2
SolidWorks2

Data Science

11 postings
Python7
MATLAB4
Ansys HFSS2
Cadence Xcelium2
Formal Verification2
Keysight ADS2

Semiconductors

8 postings
Python5
MATLAB2

QA

8 postings
Python8
C++5
Java3
Embedded C2
GitHub Actions2
GitLab CI2

DevOps

7 postings
Verilog3
Cadence Spectre2
Cadence Virtuoso2

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How much does Lightmatter pay by technology?

Median stated pay of the postings that name each technology, against the median of all Lightmatter postings with stated pay: $220k across 74 postings.

TechnologyPostings with payMedianvs company median
Python49$220k0%
MATLAB17$240k+9%
Verilog11$220k0%
C++10$223k+1%
SystemVerilog5$218k−1%

How is the Lightmatter stack changing?

Read from the dates of the postings themselves: a technology is new when the first posting that names it appeared in the last six months, rising or falling when its share of postings moved between the last two quarters.

First appeared
Synopsys VCSNov 2026
PerlNov 2026
Embedded CSep 2026
GitHub ActionsSep 2026
GitLab CISep 2026
JenkinsSep 2026
CSep 2026
QEMUSep 2026
Rising
FreeRTOS0% → 10%
Cadence Xcelium0% → 7%
Synopsys VCS0% → 7%
Perl0% → 7%
Keysight ADS7% → 12%
CI/CD2% → 7%
SystemVerilog2% → 7%
Falling
Linux10% → 2%
Git10% → 5%
Machine Learning7% → 2%
CMake7% → 5%
Not named for 6 months
Formal VerificationDec 2025
Siemens ModelSimDec 2025
UVMDec 2025

How modern is the Lightmatter stack?

Modern AI adopter 70/100

Lightmatter scores 70 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 1; legacy ones: 0.

How common is the Lightmatter stack in its industry?

Share of the 280 companies in the same industries, whose stack Alion knows, that use each technology.

Python68%
MATLAB27%
Verilog33%
C++63%
Pytest10%
SystemVerilog30%
Java12%
Linux45%
NumPy12%
SciPy6%

Questions about the Lightmatter tech stack

What programming languages does Lightmatter use?

The languages named in Lightmatter job postings are Python (67%), MATLAB (24%), Verilog (15%), C++ (13%), SystemVerilog (6%), as a share of the 97 postings of the last 12 months.

Does Lightmatter use NumPy?

Yes. NumPy is named in 5 of 97 job postings (5%) and required in 5 of them.

What cloud and platforms does Lightmatter use?

The cloud and platforms named in Lightmatter job postings are Linux (5), FreeRTOS (4), GitHub Actions (2) (postings in brackets).

What skills do you need for a Hardware job at Lightmatter?

Hardware postings at Lightmatter most often require Python (18), Verilog (6), C++ (5), CMake (5), out of 35 postings in the last 12 months.

Is the Lightmatter tech stack changing?

Yes. Synopsys VCS, Perl, Embedded C, GitHub Actions first appeared in Lightmatter job postings in the last six months.

How modern is the Lightmatter tech stack?

Lightmatter scores 70 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 1; legacy ones: 0.

How does Alion know the Lightmatter tech stack?

Alion reads every job posting Lightmatter publishes and tags the technologies each one names. The figures on this page count the 97 postings of the last 12 months and were updated on Nov 11, 2026.

Method and citation

Alion reads every job posting the company publishes and tags the technologies each one names. Shares count the postings of the last 12 months, open and closed; the company's own products are counted apart. How we count

Alion, "Lightmatter tech stack: 58 technologies from 97 job postings", as of Nov 11, 2026. https://alion.io/company/lightmatter-co/technologies

Licence: CC BY-SA 4.0JSON