# Lightmatter - **Answer**: Lightmatter builds mostly with Python, MATLAB, Verilog, C++. Its stack also includes Linux, Pytest, NumPy, FreeRTOS. Python is named in 73 of the 106 job postings Lightmatter published in the last 12 months (69%). Counted by Alion from the job postings of Lightmatter, updated Nov 12, 2026. - **Window days**: 365 - **Postings analysed**: 106 - **Open postings**: 55 - **Technologies in use**: 65 - **Modernity score**: 76 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 16141 - **Name**: Lightmatter - **Domain**: lightmatter.co - **Url**: ## Technologies - **HPC** — Layer: practices; Postings: 106; Share: 1; Required: 106; Open postings: 55; First seen: 2025-03-24 - **Python** — Layer: languages; Postings: 73; Share: 0.6887; Required: 58; Open postings: 40; First seen: 2025-07-31 - **MATLAB** — Layer: languages; Postings: 23; Share: 0.217; Required: 15; Open postings: 13; First seen: 2025-07-31 - **Verilog** — Layer: languages; Postings: 15; Share: 0.1415; Required: 15; Open postings: 6; First seen: 2026-07-14 - **C++** — Layer: languages; Postings: 14; Share: 0.1321; Required: 11; Open postings: 4; First seen: 2026-07-01 - **Git** — Layer: tools; Postings: 11; Share: 0.1038; Required: 7; Open postings: 3; First seen: 2026-01-16 - **Keysight ADS** — Layer: tools; Postings: 8; Share: 0.0755; Required: 8; Open postings: 4; First seen: 2026-07-14 - **CI/CD** — Layer: practices; Postings: 8; Share: 0.0755; Required: 7; Open postings: 2; First seen: 2026-01-16 - **Machine Learning** — Layer: practices; Postings: 7; Share: 0.066; Required: 7; Open postings: 4; First seen: 2025-08-22 - **SolidWorks** — Layer: tools; Postings: 7; Share: 0.066; Required: 5; Open postings: 4; First seen: 2026-05-13 - **Cadence Virtuoso** — Layer: tools; Postings: 7; Share: 0.066; Required: 4; Open postings: 5; First seen: 2026-06-09 - **Linux** — Layer: cloud; Postings: 6; Share: 0.0566; Required: 5; Open postings: 2; First seen: 2026-06-09 - **SystemVerilog** — Layer: languages; Postings: 6; Share: 0.0566; Required: 5; Open postings: 5; First seen: 2025-07-31 - **KLayout** — Layer: tools; Postings: 6; Share: 0.0566; Required: 0; Open postings: 2; First seen: 2026-01-16 - **Pytest** — Layer: frameworks; Postings: 6; Share: 0.0566; Required: 0; Open postings: 0; First seen: 2026-01-16 - **CMake** — Layer: tools; Postings: 5; Share: 0.0472; Required: 5; Open postings: 1; First seen: 2026-07-15 - **Cadence Xcelium** — Layer: tools; Postings: 5; Share: 0.0472; Required: 5; Open postings: 5; First seen: 2025-11-05 - **Java** — Layer: languages; Postings: 5; Share: 0.0472; Required: 5; Open postings: 0; First seen: 2026-06-01 - **NumPy** — Layer: frameworks; Postings: 5; Share: 0.0472; Required: 5; Open postings: 1; First seen: 2026-01-16 - **SciPy** — Layer: frameworks; Postings: 5; Share: 0.0472; Required: 5; Open postings: 1; First seen: 2026-01-16 - **Ansys HFSS** — Layer: tools; Postings: 4; Share: 0.0377; Required: 4; Open postings: 0; First seen: 2026-07-14 - **ANSYS** — Layer: tools; Postings: 4; Share: 0.0377; Required: 3; Open postings: 4; First seen: 2026-05-13 - **FreeRTOS** — Layer: cloud; Postings: 4; Share: 0.0377; Required: 1; Open postings: 0; First seen: 2026-09-11 - **Synopsys VCS** — Layer: tools; Postings: 3; Share: 0.0283; Required: 3; Open postings: 3; First seen: 2026-11-07 - **Abaqus** — Layer: tools; Postings: 3; Share: 0.0283; Required: 2; Open postings: 3; First seen: 2026-05-13 - **Perl** — Layer: languages; Postings: 3; Share: 0.0283; Required: 0; Open postings: 3; First seen: 2026-11-07 - **Cadence Spectre** — Layer: tools; Postings: 2; Share: 0.0189; Required: 2; Open postings: 2; First seen: 2026-07-14 - **Embedded C** — Layer: languages; Postings: 2; Share: 0.0189; Required: 2; Open postings: 0; First seen: 2026-09-24 - **Formal Verification** — Layer: tools; Postings: 2; Share: 0.0189; Required: 2; Open postings: 2; First seen: 2025-11-05 - **GitHub Actions** — Layer: cloud; Postings: 2; Share: 0.0189; Required: 2; Open postings: 0; First seen: 2026-09-24 - **GitLab CI** — Layer: cloud; Postings: 2; Share: 0.0189; Required: 2; Open postings: 0; First seen: 2026-09-24 - **Jenkins** — Layer: tools; Postings: 2; Share: 0.0189; Required: 2; Open postings: 0; First seen: 2026-09-24 - **Siemens ModelSim** — Layer: tools; Postings: 2; Share: 0.0189; Required: 2; Open postings: 2; First seen: 2025-11-05 - **UVM** — Layer: frameworks; Postings: 2; Share: 0.0189; Required: 2; Open postings: 2; First seen: 2025-11-05 - **AI Agents** — Layer: practices; Postings: 2; Share: 0.0189; Required: 1; Open postings: 2; First seen: 2026-08-17 - **GD&T** — Layer: practices; Postings: 2; Share: 0.0189; Required: 1; Open postings: 2; First seen: 2026-05-13 - **RTOS** — Layer: cloud; Postings: 2; Share: 0.0189; Required: 1; Open postings: 0; First seen: 2026-09-11 - **AutoCAD** — Layer: tools; Postings: 2; Share: 0.0189; Required: 0; Open postings: 1; First seen: 2026-06-30 - **C** — Layer: languages; Postings: 2; Share: 0.0189; Required: 0; Open postings: 0; First seen: 2026-09-24 - **Cadence Pegasus** — Layer: tools; Postings: 2; Share: 0.0189; Required: 0; Open postings: 1; First seen: 2026-06-09 - **JMP** — Layer: tools; Postings: 2; Share: 0.0189; Required: 0; Open postings: 2; First seen: 2026-08-09 - **QEMU** — Layer: tools; Postings: 2; Share: 0.0189; Required: 0; Open postings: 0; First seen: 2026-09-24 - **Siemens Calibre** — Layer: tools; Postings: 2; Share: 0.0189; Required: 0; Open postings: 1; First seen: 2026-06-09 - **Agentic Workflows** — Layer: practices; Postings: 1; Share: 0.0094; Required: 1; Open postings: 1; First seen: 2026-11-11 - **Ansys SIwave** — Layer: tools; Postings: 1; Share: 0.0094; Required: 1; Open postings: 1; First seen: 2026-08-19 - **Bash** — Layer: languages; Postings: 1; Share: 0.0094; Required: 1; Open postings: 0; First seen: 2026-06-09 - **C#** — Layer: languages; Postings: 1; Share: 0.0094; Required: 1; Open postings: 1; First seen: 2026-04-24 - **Cadence Allegro** — Layer: tools; Postings: 1; Share: 0.0094; Required: 1; Open postings: 1; First seen: 2026-08-19 - **Edge AI** — Layer: practices; Postings: 1; Share: 0.0094; Required: 1; Open postings: 1; First seen: 2026-11-11 - **InfiniBand** — Layer: tools; Postings: 1; Share: 0.0094; Required: 1; Open postings: 1; First seen: 2025-08-22 - … 15 more in the JSON form ## Changes ### First appeared - **Synopsys VCS** — First seen: 2026-11-07 - **Perl** — First seen: 2026-11-07 - **Embedded C** — First seen: 2026-09-24 - **GitHub Actions** — First seen: 2026-09-24 - **GitLab CI** — First seen: 2026-09-24 - **Jenkins** — First seen: 2026-09-24 - **C** — First seen: 2026-09-24 - **QEMU** — First seen: 2026-09-24 ### Rising - **FreeRTOS** — Share from: 0; Share to: 8 - **CI/CD** — Share from: 2; Share to: 8 - **Cadence Xcelium** — Share from: 0; Share to: 6 - **Synopsys VCS** — Share from: 0; Share to: 6 - **Perl** — Share from: 0; Share to: 6 - **SystemVerilog** — Share from: 2; Share to: 6 - **SolidWorks** — Share from: 5; Share to: 8 ### Falling - **Linux** — Share from: 10; Share to: 4 - **Cadence Virtuoso** — Share from: 10; Share to: 6 - **CMake** — Share from: 7; Share to: 4 ### Not seen 180d - **Formal Verification** — Last seen: 2025-12-09 - **Siemens ModelSim** — Last seen: 2025-12-09 - **UVM** — Last seen: 2025-12-09 ## Similar stacks - [Astera Labs](https://alion.io/company/astera-labs-2/technologies) — Shared technologies: 41 - [Lumilens](https://alion.io/company/lumilens/technologies) — Shared technologies: 41 - [Cowboy Space](https://alion.io/company/cowboyspace/technologies) — Shared technologies: 31 - [Upscale AI](https://alion.io/company/upscale-ai-2/technologies) — Shared technologies: 29 - [Cirrus Logic](https://alion.io/company/cirrus-logic/technologies) — Shared technologies: 37 - [Neurophos](https://alion.io/company/neurophos/technologies) — Shared technologies: 33 - [Marvell Technology](https://alion.io/company/marvell-technology/technologies) — Shared technologies: 54 - [Bioproductos Marvell](https://alion.io/company/marvell/technologies) — Shared technologies: 28 --- [Page](https://alion.io/company/lightmatter-co/technologies) · [JSON](https://alion.io/company/lightmatter-co/technologies.json) Source: Alion (alion.io), 2026-11-12. 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