{"company":{"id":8705,"name":"Commonwealth Fusion Systems","domain":"cfs.energy","url":"https://alion.io/company/commonwealth-fusion-systems"},"answer":"Commonwealth Fusion Systems builds mostly with Python, MATLAB, C++, Go. Its stack also includes Linux, AWS, Ray. Python is named in 15 of the 37 job postings Commonwealth Fusion Systems published in the last 12 months (41%). Counted by Alion from the job postings of Commonwealth Fusion Systems, updated Oct 1, 2026.","window_days":365,"postings_analysed":37,"open_postings":30,"technologies_in_use":25,"modernity_score":65,"ai_adoption":false,"technologies":[{"name":"Python","layer":"languages","postings":15,"share":0.4054,"required":10,"open_postings":13,"first_seen":"2026-05-20","last_seen":"2026-09-18","median_stated_pay_usd":200000},{"name":"SolidWorks","layer":"tools","postings":10,"share":0.2703,"required":9,"open_postings":8,"first_seen":"2026-04-24","last_seen":"2026-09-30","median_stated_pay_usd":185000},{"name":"AutoCAD","layer":"tools","postings":10,"share":0.2703,"required":8,"open_postings":6,"first_seen":"2026-04-24","last_seen":"2026-09-30","median_stated_pay_usd":185000},{"name":"Microsoft Excel","layer":"tools","postings":8,"share":0.2162,"required":6,"open_postings":7,"first_seen":"2026-05-14","last_seen":"2026-09-21","median_stated_pay_usd":200000},{"name":"Linux","layer":"cloud","postings":6,"share":0.1622,"required":5,"open_postings":6,"first_seen":"2026-06-23","last_seen":"2026-09-11","median_stated_pay_usd":200000},{"name":"CI/CD","layer":"practices","postings":5,"share":0.1351,"required":5,"open_postings":4,"first_seen":"2026-05-20","last_seen":"2026-08-21","median_stated_pay_usd":200000},{"name":"MATLAB","layer":"languages","postings":5,"share":0.1351,"required":2,"open_postings":4,"first_seen":"2026-06-12","last_seen":"2026-09-02","median_stated_pay_usd":185000},{"name":"C++","layer":"languages","postings":3,"share":0.0811,"required":3,"open_postings":3,"first_seen":"2026-07-02","last_seen":"2026-09-18","median_stated_pay_usd":null},{"name":"Git","layer":"tools","postings":2,"share":0.0541,"required":2,"open_postings":2,"first_seen":"2026-08-20","last_seen":"2026-09-11","median_stated_pay_usd":null},{"name":"Docker","layer":"tools","postings":2,"share":0.0541,"required":1,"open_postings":2,"first_seen":"2026-08-20","last_seen":"2026-09-18","median_stated_pay_usd":null},{"name":"EtherCAT","layer":"tools","postings":2,"share":0.0541,"required":0,"open_postings":2,"first_seen":"2026-06-23","last_seen":"2026-08-05","median_stated_pay_usd":null},{"name":"AWS","layer":"cloud","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-09-18","last_seen":"2026-09-18","median_stated_pay_usd":null},{"name":"Ansys HFSS","layer":"tools","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-08-20","last_seen":"2026-08-20","median_stated_pay_usd":null},{"name":"CAPA","layer":"tools","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-09-04","last_seen":"2026-09-04","median_stated_pay_usd":null},{"name":"GitHub","layer":"cloud","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-08-20","last_seen":"2026-08-20","median_stated_pay_usd":null},{"name":"Go","layer":"languages","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-08-20","last_seen":"2026-08-20","median_stated_pay_usd":null},{"name":"HPC","layer":"practices","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-09-18","last_seen":"2026-09-18","median_stated_pay_usd":null},{"name":"Human-in-the-Loop","layer":"practices","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-08-20","last_seen":"2026-08-20","median_stated_pay_usd":null},{"name":"LTspice","layer":"tools","postings":1,"share":0.027,"required":1,"open_postings":0,"first_seen":"2026-08-28","last_seen":"2026-08-28","median_stated_pay_usd":null},{"name":"Material Design","layer":"practices","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-09-23","last_seen":"2026-09-23","median_stated_pay_usd":null},{"name":"Ray","layer":"frameworks","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-07-15","last_seen":"2026-07-15","median_stated_pay_usd":null},{"name":"Rest API","layer":"tools","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-08-20","last_seen":"2026-08-20","median_stated_pay_usd":null},{"name":"SLURM","layer":"tools","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-09-18","last_seen":"2026-09-18","median_stated_pay_usd":null},{"name":"Synthetic Data","layer":"practices","postings":1,"share":0.027,"required":1,"open_postings":1,"first_seen":"2026-09-23","last_seen":"2026-09-23","median_stated_pay_usd":null},{"name":"AI Agents","layer":"practices","postings":1,"share":0.027,"required":0,"open_postings":1,"first_seen":"2026-07-02","last_seen":"2026-07-02","median_stated_pay_usd":null}],"own_products":[],"changes":{"first_appeared":[{"name":"Git","first_seen":"2026-08-20"},{"name":"Docker","first_seen":"2026-08-20"}],"rising":[{"name":"Microsoft Excel","share_from":10,"share_to":26},{"name":"Linux","share_from":10,"share_to":19}],"falling":[{"name":"AutoCAD","share_from":50,"share_to":19},{"name":"SolidWorks","share_from":40,"share_to":22},{"name":"CI/CD","share_from":20,"share_to":11},{"name":"MATLAB","share_from":20,"share_to":11}],"not_seen_180d":[]},"similar_stacks":[{"name":"Heron Power","url":"https://alion.io/company/heronpower/technologies","shared_technologies":18},{"name":"Xcimer Energy","url":"https://alion.io/company/xcimer/technologies","shared_technologies":19},{"name":"Redwood Materials","url":"https://alion.io/company/redwood-materials/technologies","shared_technologies":18},{"name":"Ursa Major","url":"https://alion.io/company/ursa-major/technologies","shared_technologies":18},{"name":"Brookhaven National Laboratory","url":"https://alion.io/company/bnl/technologies","shared_technologies":17},{"name":"Relativity Space","url":"https://alion.io/company/relativity-space/technologies","shared_technologies":22},{"name":"Mach Industries","url":"https://alion.io/company/machindustries/technologies","shared_technologies":22},{"name":"Joby Aviation","url":"https://alion.io/company/joby-aviation/technologies","shared_technologies":23}],"html_url":"https://alion.io/company/commonwealth-fusion-systems/technologies","json_url":"https://alion.io/company/commonwealth-fusion-systems/technologies.json","license":"CC BY-SA 4.0","meta":{"source":"Alion","built_at":"2026-10-01T05:02:50Z","generated_at":"2026-10-01T11:30:47Z"}}