# Commonwealth Fusion Systems - **Answer**: Commonwealth Fusion Systems builds mostly with Python, C++, MATLAB, Rust. Its stack also includes Linux, AWS, PostgreSQL. Python is named in 33 of the 105 job postings Commonwealth Fusion Systems published in the last 12 months (31%). Counted by Alion from the job postings of Commonwealth Fusion Systems, updated Nov 12, 2026. - **Window days**: 365 - **Postings analysed**: 105 - **Open postings**: 75 - **Technologies in use**: 81 - **Modernity score**: 81 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 8705 - **Name**: Commonwealth Fusion Systems - **Domain**: cfs.energy - **Url**: ## Technologies - **Python** — Layer: languages; Postings: 33; Share: 0.3143; Required: 22; Open postings: 21; First seen: 2026-03-05 - **SolidWorks** — Layer: tools; Postings: 19; Share: 0.181; Required: 14; Open postings: 15; First seen: 2026-04-24 - **AutoCAD** — Layer: tools; Postings: 17; Share: 0.1619; Required: 13; Open postings: 11; First seen: 2026-04-24 - **Microsoft Excel** — Layer: tools; Postings: 16; Share: 0.1524; Required: 14; Open postings: 11; First seen: 2026-04-23 - **ANSYS** — Layer: tools; Postings: 16; Share: 0.1524; Required: 10; Open postings: 14; First seen: 2026-08-07 - **C++** — Layer: languages; Postings: 14; Share: 0.1333; Required: 14; Open postings: 9; First seen: 2026-03-05 - **FMEA** — Layer: practices; Postings: 14; Share: 0.1333; Required: 5; Open postings: 12; First seen: 2026-04-24 - **Statistical Process Control** — Layer: practices; Postings: 13; Share: 0.1238; Required: 3; Open postings: 11; First seen: 2026-04-24 - **GD&T** — Layer: practices; Postings: 12; Share: 0.1143; Required: 9; Open postings: 9; First seen: 2026-07-15 - **Linux** — Layer: cloud; Postings: 11; Share: 0.1048; Required: 10; Open postings: 5; First seen: 2026-06-23 - **MATLAB** — Layer: languages; Postings: 10; Share: 0.0952; Required: 6; Open postings: 6; First seen: 2026-03-05 - **Siemens NX** — Layer: tools; Postings: 10; Share: 0.0952; Required: 3; Open postings: 8; First seen: 2026-04-15 - **CI/CD** — Layer: practices; Postings: 6; Share: 0.0571; Required: 6; Open postings: 3; First seen: 2026-05-20 - **Rust** — Layer: languages; Postings: 6; Share: 0.0571; Required: 6; Open postings: 3; First seen: 2026-06-23 - **Verification & Validation** — Layer: practices; Postings: 4; Share: 0.0381; Required: 4; Open postings: 3; First seen: 2026-08-07 - **ASME NQA-1** — Layer: practices; Postings: 4; Share: 0.0381; Required: 3; Open postings: 3; First seen: 2026-09-02 - **JMP** — Layer: tools; Postings: 4; Share: 0.0381; Required: 3; Open postings: 3; First seen: 2026-07-15 - **Minitab** — Layer: tools; Postings: 4; Share: 0.0381; Required: 3; Open postings: 3; First seen: 2026-07-15 - **AWS** — Layer: cloud; Postings: 4; Share: 0.0381; Required: 2; Open postings: 3; First seen: 2026-09-18 - **Git** — Layer: tools; Postings: 3; Share: 0.0286; Required: 3; Open postings: 1; First seen: 2026-08-20 - **Material Design** — Layer: practices; Postings: 3; Share: 0.0286; Required: 3; Open postings: 3; First seen: 2026-09-23 - **Docker** — Layer: tools; Postings: 3; Share: 0.0286; Required: 2; Open postings: 2; First seen: 2026-08-20 - **Ansible** — Layer: tools; Postings: 3; Share: 0.0286; Required: 0; Open postings: 1; First seen: 2026-10-07 - **Terraform** — Layer: tools; Postings: 3; Share: 0.0286; Required: 0; Open postings: 1; First seen: 2026-10-07 - **AS9100** — Layer: practices; Postings: 2; Share: 0.019; Required: 2; Open postings: 2; First seen: 2026-10-02 - **Design of Experiments** — Layer: practices; Postings: 2; Share: 0.019; Required: 2; Open postings: 2; First seen: 2026-09-23 - **GitHub** — Layer: cloud; Postings: 2; Share: 0.019; Required: 2; Open postings: 1; First seen: 2026-08-20 - **Go** — Layer: languages; Postings: 2; Share: 0.019; Required: 2; Open postings: 1; First seen: 2026-08-20 - **Human-in-the-Loop** — Layer: practices; Postings: 2; Share: 0.019; Required: 2; Open postings: 1; First seen: 2026-08-20 - **Kubernetes** — Layer: cloud; Postings: 2; Share: 0.019; Required: 2; Open postings: 1; First seen: 2026-10-07 - **MCNP** — Layer: tools; Postings: 2; Share: 0.019; Required: 2; Open postings: 1; First seen: 2026-10-09 - **PVD** — Layer: practices; Postings: 2; Share: 0.019; Required: 2; Open postings: 2; First seen: 2026-09-18 - **Red Hat** — Layer: cloud; Postings: 2; Share: 0.019; Required: 2; Open postings: 1; First seen: 2026-10-07 - **Synthetic Data** — Layer: practices; Postings: 2; Share: 0.019; Required: 2; Open postings: 2; First seen: 2026-09-23 - **Ubuntu** — Layer: cloud; Postings: 2; Share: 0.019; Required: 2; Open postings: 1; First seen: 2026-10-07 - **Windows** — Layer: cloud; Postings: 2; Share: 0.019; Required: 2; Open postings: 1; First seen: 2026-10-07 - **AI Agents** — Layer: practices; Postings: 2; Share: 0.019; Required: 1; Open postings: 2; First seen: 2026-07-02 - **Azure** — Layer: cloud; Postings: 2; Share: 0.019; Required: 1; Open postings: 1; First seen: 2026-10-07 - **GCP** — Layer: cloud; Postings: 2; Share: 0.019; Required: 1; Open postings: 1; First seen: 2026-10-07 - **Rest API** — Layer: tools; Postings: 2; Share: 0.019; Required: 1; Open postings: 2; First seen: 2026-08-20 - **Active Directory** — Layer: cloud; Postings: 2; Share: 0.019; Required: 0; Open postings: 1; First seen: 2026-10-07 - **DHCP** — Layer: practices; Postings: 2; Share: 0.019; Required: 0; Open postings: 1; First seen: 2026-10-07 - **DNS** — Layer: practices; Postings: 2; Share: 0.019; Required: 0; Open postings: 1; First seen: 2026-10-07 - **EtherCAT** — Layer: tools; Postings: 2; Share: 0.019; Required: 0; Open postings: 1; First seen: 2026-06-23 - **MQTT** — Layer: tools; Postings: 2; Share: 0.019; Required: 0; Open postings: 2; First seen: 2026-10-07 - **Okta** — Layer: cloud; Postings: 2; Share: 0.019; Required: 0; Open postings: 1; First seen: 2026-10-07 - **TCP/IP** — Layer: practices; Postings: 2; Share: 0.019; Required: 0; Open postings: 1; First seen: 2026-10-07 - **Ansys HFSS** — Layer: tools; Postings: 1; Share: 0.0095; Required: 1; Open postings: 1; First seen: 2026-08-20 - **CAPA** — Layer: practices; Postings: 1; Share: 0.0095; Required: 1; Open postings: 1; First seen: 2026-09-04 - **ChatGPT** — Layer: ai; Postings: 1; Share: 0.0095; Required: 1; Open postings: 1; First seen: 2026-10-27 - … 31 more in the JSON form ## Changes ### First appeared - **MCNP** — First seen: 2026-10-09 - **MQTT** — First seen: 2026-10-07 - **Kubernetes** — First seen: 2026-10-07 - **Red Hat** — First seen: 2026-10-07 - **Ubuntu** — First seen: 2026-10-07 - **Windows** — First seen: 2026-10-07 - **Active Directory** — First seen: 2026-10-07 - **DHCP** — First seen: 2026-10-07 ### Rising - **ANSYS** — Share from: 6; Share to: 18 - **ASME NQA-1** — Share from: 0; Share to: 5 - **AWS** — Share from: 0; Share to: 5 - **Git** — Share from: 0; Share to: 4 - **Material Design** — Share from: 0; Share to: 4 - **Docker** — Share from: 0; Share to: 4 - **Ansible** — Share from: 0; Share to: 4 - **Terraform** — Share from: 0; Share to: 4 ### Falling - **MATLAB** — Share from: 24; Share to: 6 - **CI/CD** — Share from: 18; Share to: 4 - **AutoCAD** — Share from: 24; Share to: 13 - **GD&T** — Share from: 18; Share to: 11 - **Rust** — Share from: 12; Share to: 5 ## Similar stacks - [General Matter](https://alion.io/company/general-matter/technologies) — Shared technologies: 57 - [Form Energy](https://alion.io/company/form-energy/technologies) — Shared technologies: 54 - [SLB](https://alion.io/company/slb-2/technologies) — Shared technologies: 58 - [Joby Aviation](https://alion.io/company/joby-aviation/technologies) — Shared technologies: 58 - [Mach Industries](https://alion.io/company/machindustries/technologies) — Shared technologies: 58 - [Isar Aerospace](https://alion.io/company/isar-aerospace-se/technologies) — Shared technologies: 53 - [Relativity Space](https://alion.io/company/relativity-space/technologies) — Shared technologies: 57 - [SEGULA Technologies](https://alion.io/company/segula-technologies/technologies) — Shared technologies: 55 --- [Page](https://alion.io/company/commonwealth-fusion-systems/technologies) · [JSON](https://alion.io/company/commonwealth-fusion-systems/technologies.json) Source: Alion (alion.io), 2026-11-12. 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