# X-energy - **Answer**: X-energy builds mostly with JavaScript, Python, SQL, TypeScript. Its stack also includes AWS, GitLab, Amazon Aurora, DynamoDB. AWS is named in 11 of the 76 job postings X-energy published in the last 12 months (14%). Counted by Alion from the job postings of X-energy, updated Nov 12, 2026. - **Window days**: 365 - **Postings analysed**: 76 - **Open postings**: 56 - **Technologies in use**: 103 - **Modernity score**: 70 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 1789545 - **Name**: X-energy - **Domain**: x-energy.com - **Url**: ## Technologies - **Verification & Validation** — Layer: practices; Postings: 26; Share: 0.3421; Required: 23; Open postings: 24; First seen: 2026-05-20 - **SolidWorks** — Layer: tools; Postings: 12; Share: 0.1579; Required: 12; Open postings: 10; First seen: 2026-08-13 - **AWS** — Layer: cloud; Postings: 11; Share: 0.1447; Required: 10; Open postings: 10; First seen: 2026-07-31 - **ASME NQA-1** — Layer: practices; Postings: 9; Share: 0.1184; Required: 8; Open postings: 8; First seen: 2026-08-14 - **CI/CD** — Layer: practices; Postings: 7; Share: 0.0921; Required: 7; Open postings: 7; First seen: 2026-08-13 - **Docker** — Layer: tools; Postings: 7; Share: 0.0921; Required: 7; Open postings: 7; First seen: 2026-07-31 - **JavaScript** — Layer: languages; Postings: 7; Share: 0.0921; Required: 7; Open postings: 7; First seen: 2026-07-31 - **Microsoft Excel** — Layer: tools; Postings: 7; Share: 0.0921; Required: 6; Open postings: 3; First seen: 2026-07-31 - **NRC Licensing** — Layer: practices; Postings: 7; Share: 0.0921; Required: 5; Open postings: 6; First seen: 2026-08-17 - **AutoCAD** — Layer: tools; Postings: 6; Share: 0.0789; Required: 6; Open postings: 2; First seen: 2026-08-28 - **GitLab** — Layer: cloud; Postings: 6; Share: 0.0789; Required: 6; Open postings: 6; First seen: 2026-07-15 - **Python** — Layer: languages; Postings: 6; Share: 0.0789; Required: 4; Open postings: 5; First seen: 2026-08-18 - **Amazon Aurora** — Layer: data; Postings: 5; Share: 0.0658; Required: 5; Open postings: 5; First seen: 2026-08-13 - **Amazon S3** — Layer: cloud; Postings: 5; Share: 0.0658; Required: 5; Open postings: 5; First seen: 2026-08-13 - **DynamoDB** — Layer: data; Postings: 5; Share: 0.0658; Required: 5; Open postings: 5; First seen: 2026-08-13 - **GitLab CI** — Layer: cloud; Postings: 5; Share: 0.0658; Required: 5; Open postings: 5; First seen: 2026-08-13 - **IBM DOORS** — Layer: tools; Postings: 5; Share: 0.0658; Required: 5; Open postings: 5; First seen: 2026-08-18 - **PostgreSQL** — Layer: data; Postings: 5; Share: 0.0658; Required: 5; Open postings: 5; First seen: 2026-08-13 - **Power BI** — Layer: cloud; Postings: 5; Share: 0.0658; Required: 5; Open postings: 1; First seen: 2026-09-08 - **Rest API** — Layer: tools; Postings: 5; Share: 0.0658; Required: 5; Open postings: 5; First seen: 2026-08-13 - **SysML** — Layer: tools; Postings: 5; Share: 0.0658; Required: 5; Open postings: 5; First seen: 2026-08-18 - **Terraform** — Layer: tools; Postings: 5; Share: 0.0658; Required: 5; Open postings: 5; First seen: 2026-08-13 - **Claude Code** — Layer: tools; Postings: 5; Share: 0.0658; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Kubernetes** — Layer: cloud; Postings: 5; Share: 0.0658; Required: 4; Open postings: 5; First seen: 2026-07-31 - **Cameo Systems Modeler** — Layer: tools; Postings: 5; Share: 0.0658; Required: 2; Open postings: 5; First seen: 2026-08-18 - **MBSE** — Layer: practices; Postings: 5; Share: 0.0658; Required: 2; Open postings: 5; First seen: 2026-08-18 - **AI Agents** — Layer: practices; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **API Gateway** — Layer: cloud; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-18 - **AWS Bedrock** — Layer: cloud; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **AWS Lambda** — Layer: cloud; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-18 - **AWS Strands Agents** — Layer: frameworks; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Agentic Workflows** — Layer: practices; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Amazon CloudWatch** — Layer: cloud; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Amazon DocumentDB** — Layer: data; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Amazon EC2** — Layer: cloud; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Amazon ECS** — Layer: cloud; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Datadog** — Layer: cloud; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Design Controls** — Layer: practices; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-26 - **ETL/ELT** — Layer: practices; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Function Calling** — Layer: practices; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Git** — Layer: tools; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **LLM** — Layer: ai; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **LangChain** — Layer: frameworks; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **LangGraph** — Layer: frameworks; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **OpenSearch** — Layer: data; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **RAG** — Layer: practices; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **React.js** — Layer: frameworks; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **Redis** — Layer: data; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - **SQL** — Layer: languages; Postings: 4; Share: 0.0526; Required: 4; Open postings: 0; First seen: 2026-08-18 - **Tailwind CSS** — Layer: frameworks; Postings: 4; Share: 0.0526; Required: 4; Open postings: 4; First seen: 2026-08-13 - … 53 more in the JSON form ## Changes ### First appeared - **Tableau** — First seen: 2026-10-02 - **MCNP** — First seen: 2026-09-26 - **STAR-CCM+** — First seen: 2026-09-17 - **Power BI** — First seen: 2026-09-08 - **AutoCAD** — First seen: 2026-08-28 - **Modularization** — First seen: 2026-08-28 - **Design Controls** — First seen: 2026-08-26 - **Python** — First seen: 2026-08-18 ### Rising - **NRC Licensing** — Share from: 0; Share to: 12 - **AutoCAD** — Share from: 0; Share to: 11 - **Python** — Share from: 0; Share to: 11 - **ASME NQA-1** — Share from: 5; Share to: 14 - **IBM DOORS** — Share from: 0; Share to: 9 - **Power BI** — Share from: 0; Share to: 9 - **SysML** — Share from: 0; Share to: 9 - **Cameo Systems Modeler** — Share from: 0; Share to: 9 ### Falling - **Verification & Validation** — Share from: 53; Share to: 28 - **AWS** — Share from: 21; Share to: 12 - **Microsoft Excel** — Share from: 16; Share to: 7 - **SolidWorks** — Share from: 21; Share to: 14 - **Amazon Aurora** — Share from: 11; Share to: 5 - **Amazon S3** — Share from: 11; Share to: 5 - **DynamoDB** — Share from: 11; Share to: 5 - **Kubernetes** — Share from: 11; Share to: 5 ## Similar stacks - [Sonata Software](https://alion.io/company/sonata-software/technologies) — Shared technologies: 72 - [GE Aerospace](https://alion.io/company/geaerospace/technologies) — Shared technologies: 68 - [Sierra Nevada Corporation](https://alion.io/company/sierra-nevada-corporation/technologies) — Shared technologies: 74 - [BP](https://alion.io/company/bp-com/technologies) — Shared technologies: 67 - [Proofpoint](https://alion.io/company/proofpoint/technologies) — Shared technologies: 68 - [Syngenta Group](https://alion.io/company/syngenta-group/technologies) — Shared technologies: 71 - [Solventum Corporation](https://alion.io/company/solventum/technologies) — Shared technologies: 72 - [Minfy Technologies](https://alion.io/company/minfy-technologies/technologies) — Shared technologies: 68 --- [Page](https://alion.io/company/x-energy/technologies) · [JSON](https://alion.io/company/x-energy/technologies.json) Source: Alion (alion.io), 2026-11-12. 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