X-energy
Nuclear Energy

X-energy tech stack

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.

Source: Alion Coverage: the company's job postings of the last 12 months Nov 12, 2026
Technologies in use
103
Postings analysed
76
Open now
56
Modernity
70 /100
New in 6 months
8

What programming languages does X-energy use?

JavaScript is named in 9% of job postings at X-energy, followed by Python (8%), SQL (5%), TypeScript (5%).

JavaScript 7 9% required in 100% · 7 open now · since Jul 2026
Python 6 8% required in 67% · 5 open now · since Aug 2026
SQL 4 5% required in 100% · since Aug 2026
TypeScript 4 5% required in 100% · 4 open now · since Aug 2026
Node JS 3 4% required in 100% · 3 open now · since Aug 2026
Java 1 1% required in 100% · 1 open now · since Oct 2026
MATLAB 1 1% optional · 1 open now · since Sep 2026

What frameworks and libraries does X-energy use?

AWS Strands Agents is named in 5% of job postings at X-energy, followed by LangChain (5%), LangGraph (5%), React.js (5%).

AWS Strands Agents 4 5% required in 100% · 4 open now · since Aug 2026
LangChain 4 5% required in 100% · 4 open now · since Aug 2026
LangGraph 4 5% required in 100% · 4 open now · since Aug 2026
React.js 4 5% required in 100% · 4 open now · since Aug 2026
Tailwind CSS 4 5% required in 100% · 4 open now · since Aug 2026
DeepEval 3 4% required in 100% · 3 open now · since Aug 2026
FastAPI 3 4% required in 100% · 3 open now · since Aug 2026
LlamaIndex 3 4% required in 100% · 3 open now · since Aug 2026
Show all (9)
Ragas3

What databases does X-energy use?

Amazon Aurora is named in 7% of job postings at X-energy, followed by DynamoDB (7%), PostgreSQL (7%), Amazon DocumentDB (5%).

Amazon Aurora 5 7% required in 100% · 5 open now · since Aug 2026
DynamoDB 5 7% required in 100% · 5 open now · since Aug 2026
PostgreSQL 5 7% required in 100% · 5 open now · since Aug 2026
Amazon DocumentDB 4 5% required in 100% · 4 open now · since Aug 2026
OpenSearch 4 5% required in 100% · 4 open now · since Aug 2026
Redis 4 5% required in 100% · 4 open now · since Aug 2026
Amazon Neptune 3 4% required in 100% · 3 open now · since Aug 2026
Apache Hudi 3 4% required in 100% · 3 open now · since Aug 2026
Show all (13)
Apache Iceberg3
Delta Lake3
Neo4j3
Oracle1
Snowflake1

What cloud and platforms does X-energy use?

AWS is named in 14% of job postings at X-energy, followed by GitLab (8%), Amazon S3 (7%), GitLab CI (7%).

AWS 11 14% required in 91% · 10 open now · since Jul 2026
GitLab 6 8% required in 100% · 6 open now · since Jul 2026
Amazon S3 5 7% required in 100% · 5 open now · since Aug 2026
GitLab CI 5 7% required in 100% · 5 open now · since Aug 2026
Power BI 5 7% required in 100% · 1 open now · since Sep 2026
Kubernetes 5 7% required in 80% · 5 open now · since Jul 2026
API Gateway 4 5% required in 100% · 4 open now · since Aug 2026
AWS Bedrock 4 5% required in 100% · 4 open now · since Aug 2026
Show all (24)
AWS Lambda4
Amazon CloudWatch4
Amazon EC24
Amazon ECS4
Datadog4
Linux4
Amazon EventBridge3
Amazon Kinesis3
Arize Phoenix3
Azure3
SIEM3
Tableau3
Amazon EKS2
Rive1
Splunk1
Databricks1

What developer tools does X-energy use?

SolidWorks is named in 16% of job postings at X-energy, followed by Docker (9%), Microsoft Excel (9%), AutoCAD (8%).

SolidWorks 12 16% required in 100% · 10 open now · since Aug 2026
Docker 7 9% required in 100% · 7 open now · since Jul 2026
Microsoft Excel 7 9% required in 86% · 3 open now · since Jul 2026
AutoCAD 6 8% required in 100% · 2 open now · since Aug 2026
IBM DOORS 5 7% required in 100% · 5 open now · since Aug 2026
Rest API 5 7% required in 100% · 5 open now · since Aug 2026
SysML 5 7% required in 100% · 5 open now · since Aug 2026
Terraform 5 7% required in 100% · 5 open now · since Aug 2026
Show all (25)
Claude Code5
Cameo Systems Modeler5
Git4
Vite4
WebSockets4
ANSYS3
AWS Glue3
Abaqus3
Apache HTTP Server3
Model Context Protocol3
RELAP53
STAR-CCM+3
MCNP3
Femap2
Nastran2
Fusion 3601
GraphQL1

What AI and ML technologies does X-energy use?

LLM is named in 5% of job postings at X-energy.

LLM 4 5% required in 100% · 4 open now · since Aug 2026

Which engineering practices does X-energy ask for?

Verification & Validation is named in 34% of job postings at X-energy, followed by ASME NQA-1 (12%), CI/CD (9%), NRC Licensing (9%).

Verification & Validation 26 34% required in 88% · 24 open now · since May 2026
ASME NQA-1 9 12% required in 89% · 8 open now · since Aug 2026
CI/CD 7 9% required in 100% · 7 open now · since Aug 2026
NRC Licensing 7 9% required in 71% · 6 open now · since Aug 2026
MBSE 5 7% required in 40% · 5 open now · since Aug 2026
AI Agents 4 5% required in 100% · 4 open now · since Aug 2026
Agentic Workflows 4 5% required in 100% · 4 open now · since Aug 2026
Design Controls 4 5% required in 100% · 4 open now · since Aug 2026
Show all (24)
ETL/ELT4
Function Calling4
RAG4
EVMS3
Hallucination3
IAM3
LLM Evaluation3
Machine Learning3
PKI3
Modularization2
CAPA1
Digital Twin1
HPC1
Master Data Management1
SOAP1
VPN1

What does each X-energy team work with?

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

Industrial Engineering

34 postings
SolidWorks12
ANSYS3
AWS3
Abaqus3
GitLab3
RELAP53

Operations

7 postings
AutoCAD3
Power BI2
Tableau2

Backend

3 postings
AWS3
AWS Bedrock3
AWS Strands Agents3
Amazon Aurora3
Amazon S33
DynamoDB3

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How is the X-energy 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
TableauOct 2026
MCNPSep 2026
STAR-CCM+Sep 2026
Power BISep 2026
AutoCADAug 2026
ModularizationAug 2026
Design ControlsAug 2026
PythonAug 2026
Rising
NRC Licensing0% → 12%
AutoCAD0% → 11%
Python0% → 11%
ASME NQA-15% → 14%
IBM DOORS0% → 9%
Power BI0% → 9%
SysML0% → 9%
Cameo Systems Modeler0% → 9%
Falling
Verification & Validation53% → 28%
AWS21% → 12%
Microsoft Excel16% → 7%
SolidWorks21% → 14%
Amazon Aurora11% → 5%
Amazon S311% → 5%
DynamoDB11% → 5%
Kubernetes11% → 5%

How modern is the X-energy stack?

Modern AI adopter 70/100

X-energy 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 X-energy stack in its industry?

Share of the 132 companies in the same industries, whose stack Alion knows, that use each technology.

AWS38%
JavaScript34%
GitLab11%
Python60%
Amazon Aurora3%
Amazon S38%
DynamoDB3%
GitLab CI7%
Kubernetes21%
PostgreSQL19%

What sets X-energy apart

Amazon Aurora3%
DynamoDB3%
API Gateway4%
AWS Bedrock3%
AWS Lambda4%
AWS Strands Agents2%
Amazon DocumentDB1%
OpenSearch1%
Tailwind CSS2%
Amazon EventBridge1%

Questions about the X-energy tech stack

What programming languages does X-energy use?

The languages named in X-energy job postings are JavaScript (9%), Python (8%), SQL (5%), TypeScript (5%), Node JS (4%), as a share of the 76 postings of the last 12 months.

Does X-energy use AWS Strands Agents?

Yes. AWS Strands Agents is named in 4 of 76 job postings (5%) and required in 4 of them.

What cloud and platforms does X-energy use?

The cloud and platforms named in X-energy job postings are AWS (11), GitLab (6), Amazon S3 (5) (postings in brackets).

What skills do you need for a Industrial Engineering job at X-energy?

Industrial Engineering postings at X-energy most often require SolidWorks (12), ANSYS (3), AWS (3), Abaqus (3), out of 34 postings in the last 12 months.

Is the X-energy tech stack changing?

Yes. Tableau, MCNP, STAR-CCM+, Power BI first appeared in X-energy job postings in the last six months.

How modern is the X-energy tech stack?

X-energy 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 X-energy tech stack?

Alion reads every job posting X-energy publishes and tags the technologies each one names. The figures on this page count the 76 postings of the last 12 months and were updated on Nov 12, 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, "X-energy tech stack: 103 technologies from 76 job postings", as of Nov 12, 2026. https://alion.io/company/x-energy/technologies

Licence: CC BY-SA 4.0JSON