X-energy
x-energy.com
Actively hiring
Energy & Utilities
Nuclear Energy
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Overview
X-energy is an advanced nuclear reactor and fuel company headquartered in Rockville, Maryland, developing the Xe-100 high-temperature gas-cooled small modular reactor and the TRISO-X fuel that powers it. Founded in 2009, it has further offices and sites in Frederick, Maryland and Oak Ridge, Tennessee, where its fuel fabrication facility is being built, and works with utility and industrial partners on first deployments of its reactors in the United States. It recruits mechanical, electrical, fuel and thermal hydraulics engineers, project controls and supply chain specialists, procurement and purchasing staff, construction field engineers and corporate functions such as HR and recruiting.
News
X-energy Announces Planned Retirement of TRISO-X President Joel Duling
ROCKVILLE, Md., Sept. 25, 2026 (GLOBE NEWSWIRE) -- X-Energy, Inc. (Nasdaq: XE) (
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Report
Oklo Vs. X-Energy: Is the New Nuclear IPO the Better Buy?
After its IPO, X-Energy's shares are up nearly 20% so far this month. Will they crush Oklo's?
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High-Temperature Gas-Cooled Reactors: Advanced Nuclear Technology for the Modern Economy
High-temperature gas-cooled reactors (HTGRs) like X-energy's Xe-100 are one of many Generation IV small modular reactor (SMR) technologies entering the commercial market today, targeting higher outlet temperatures, intrinsic safety features, and more effi
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Tech stack
Technologies named in job postings at X-energy over the last 12 months, by layer, with the share of postings for each.
Technologies in use
83
Postings analysed
38
Stack modernity
72/100AI adopter
Languages
JavaScript13%
TypeScript11%
Python11%
Node JS8%
Frameworks & libraries
AWS Strands Agents11%
LangChain11%
LangGraph11%
React.js11%
Databases
Amazon Aurora13%
DynamoDB13%
Amazon DocumentDB11%
OpenSearch11%
Cloud & platforms
AWS24%
Amazon S313%
GitLab13%
AWS Bedrock11%
AI & ML
LLM11%
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Full X-energy tech stack
83 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$149k
Typical range
$46k – $276k
Open positions
97
95
Jobs
Intern
6.3%
Junior
11.6%
Middle
23.2%
Senior
29.5%
Staff
21.1%
Principal
2.1%
Architect
6.3%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Intern | 6 | $50k | $50k |
| Junior | 11 | $159k | $120k – $218k |
| Middle | 22 | $139k | $46k – $208k |
| Senior | 28 | $174k | $104k – $276k |
| Staff | 20 | $154k | $90k – $230k |
| Principal | 2 | $170k | $135k – $205k |
| Architect | 6 | $224k | $120k – $243k |
Highest paying role
Senior Manager, Project Controls
$276k
Normalized to USD per year
Growth
Hiring Momentum
43/100
Stable
Open positions
104
22 opened / 0 closed in 30 days
Median time-to-fill
4 days
faster than 81% of the market
ATS activity
Every ~3 hours
Today
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Industrial Engineering
42% ▼
HR
12% ▲
Operations
10% ▲
Leadership
6%
Sales
5% ▼
QA
4% ▼
Actively hiring for Industrial Engineering (+21 in 30 days)
Activity Timeline
+22 jobs in a week
Sep 2026
Offices
Where the company hires and what each office is for
Cities
9
Hiring now
4
Countries
2
Busiest office
Rockville
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Headquarters
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Office with open vacancies
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Rockville
United States
HQ
MD - Gaither Rd., Rockville Corp Hqtrs
79 open roles 79 posted in 90 days 16% engineering 1000-5000 est. staff $153k Avg Salary
hires for Industrial Engineering, HR, Sales
530 Gaither Road, Suite 700, Rockville, MD 20850
Lafayette
United States
Plant / site
TN - Lafayette Dr., Oak Ridge
26 open roles 28 posted in 90 days 12% engineering 500-1000 est. staff $159k Avg Salary
hires for Operations, Industrial Engineering, Leadership
Houston
United States
Plant / site
MD - Gaither Rd., Rockville Corp Hqtrs
2 open roles 2 posted in 90 days 10-50 est. staff $178k Avg Salary
hires for Industrial Engineering
McKinney
United States
MD - Gaither Rd., Rockville Corp Hqtrs
1 open roles 1 posted in 90 days 10-50 est. staff $120k Avg Salary
hires for HR
Toronto
Canada
Regional office
Toronto, Canada
393 University Ave 4th Floor Toronto, ON, Canada M5G 1E6
Manchester
United States
Regional office
Manchester, United Kingdom
Clarence House, 4 Clarence Street, Manchester, M2 4DW
Frederick
United States
Regional office
Frederick, Maryland
7201 McKinney Cir, Frederick, MD 21704
Texas
United States
Regional office
Houston, Texas
2050 West Sam Houston Parkway, Suite 1100, Houston, Texas 77042
Oak Ridge
United States
Regional office
Oak Ridge, Tennessee
151 Lafayette Drive, Suite 300 Oak Ridge, TN 37830
Jobs
$138k – $230k per year • In office • Full-Time • 2+ years exp • Bachelor's Degree • Rockville
Apply
$214k – $243k per year • In office • Full-Time • Bachelor's Degree • Rockville
Apply
$120k – $145k per year • In office • Full-Time • 10+ years exp • Bachelor's Degree • Rockville
Apply
$95k – $120k per year • In office • Full-Time • 1+ year exp • Bachelor's Degree • Rockville
Python
MATLAB
Apply
≈ $157k – $293k per year (Estimated) • In office • Full-Time • 5+ years exp • Bachelor's Degree • Rockville
Apply
$180k – $205k per year • In office • Secret • Full-Time • 10+ years exp • High School Diploma • Rockville
Machine Learning
DevOps
Splunk
Azure
AWS
Docker
Kubernetes
Cybersecurity
STRIDE
Threat Modeling
PKI
SIEM
Apply
$202k – $227k per year • In office • Full-Time • 2+ years exp • Bachelor's Degree • Lafayette
Apply
$180k – $205k per year • Hybrid • Full-Time • 10+ years exp • Bachelor's Degree • Rockville
Python
JavaScript
TypeScript
Node JS
FastAPI
Databases
PostgreSQL
Redis
Neo4j
Apache Iceberg
Delta Lake
DynamoDB
OpenSearch
Amazon Aurora
Apache Hudi
Amazon Neptune
Amazon DocumentDB
AI/ML
LangGraph
LangChain
Claude Code
LlamaIndex
Model Context Protocol
Function Calling
AI Agents
Arize Phoenix
DeepEval
Ragas
AWS Bedrock
LLM
RAG
Hallucination
AWS Strands Agents
LLM Evaluation
Agentic Workflows
Tool Use
Frontend
Tailwind CSS
React.js
Vite
DevOps
Rest API
Terraform
Datadog
WebSockets
GitLab CI
CI/CD
Git
AWS
Docker
AWS Lambda
Amazon EC2
SLI/SLO/SLA
GitLab
Amazon S3
IAM
Amazon ECS
Amazon CloudWatch
Amazon Kinesis
Amazon EventBridge
API Gateway
Linux
Apache HTTP Server
Cybersecurity
FedRAMP
Analytics
ETL/ELT
AWS Glue
Management
Confluence
Jira
Apply
$90k – $150k per year • Remote (United States, ET hours) • Full-Time • 3+ years exp • High School Diploma • United States
SQL
Oracle
Apply
$150k – $180k per year • Hybrid • Full-Time • 5+ years exp • Bachelor's Degree • Rockville
Python
JavaScript
TypeScript
Node JS
FastAPI
Databases
PostgreSQL
Redis
Neo4j
Apache Iceberg
Delta Lake
DynamoDB
OpenSearch
Amazon Aurora
Apache Hudi
Amazon Neptune
Amazon DocumentDB
AI/ML
LangGraph
LangChain
Claude Code
LlamaIndex
Model Context Protocol
Function Calling
AI Agents
Arize Phoenix
DeepEval
Ragas
AWS Bedrock
LLM
RAG
Hallucination
AWS Strands Agents
LLM Evaluation
Agentic Workflows
Tool Use
Frontend
Tailwind CSS
React.js
Vite
DevOps
Rest API
Terraform
Datadog
WebSockets
GitLab CI
CI/CD
Git
AWS
Docker
AWS Lambda
Amazon EC2
SLI/SLO/SLA
GitLab
Amazon S3
IAM
Amazon ECS
Amazon CloudWatch
Amazon Kinesis
Amazon EventBridge
API Gateway
Linux
Apache HTTP Server
Cybersecurity
FedRAMP
Analytics
ETL/ELT
AWS Glue
Management
Confluence
Jira
Apply
$220k – $245k per year • Hybrid • Full-Time • Bachelor's Degree • Rockville
Python
JavaScript
TypeScript
Node JS
FastAPI
Databases
PostgreSQL
Redis
Snowflake
Neo4j
Databricks
Apache Iceberg
Delta Lake
DynamoDB
OpenSearch
Amazon Aurora
Apache Hudi
Amazon Neptune
Amazon DocumentDB
AI/ML
LangGraph
LangChain
Claude Code
LlamaIndex
Model Context Protocol
Function Calling
AI Agents
Arize Phoenix
DeepEval
Ragas
AWS Bedrock
LLM
RAG
Hallucination
AWS Strands Agents
LLM Evaluation
Agentic Workflows
Tool Use
Frontend
Tailwind CSS
React.js
Vite
DevOps
Rest API
Terraform
Datadog
WebSockets
GitLab CI
CI/CD
Git
AWS
Docker
AWS Lambda
Amazon EC2
SLI/SLO/SLA
GitLab
Amazon S3
IAM
Amazon ECS
Amazon CloudWatch
Amazon Kinesis
Amazon EventBridge
API Gateway
Linux
Apache HTTP Server
Cybersecurity
FedRAMP
Analytics
ETL/ELT
AWS Glue
Management
Confluence
Jira
Apply
$125k – $150k per year • In office • Full-Time • 10+ years exp • Bachelor's Degree • Rockville
AWS
Kubernetes
Amazon EKS
Apply