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ClosedPosted 3 days ago

ICS / OT Cyber Security Engineer

X-energy107 open roles

Pay
$112,500 – $128,250 a year
Where
Rockville, MD
Work mode
Remote

This posting closed on 2026-10-22. 107 other X-energy postings are live.

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The clock on this job

Early applications get read.

12.1% of postings close within 7 days. Measured by our own scanner across the market. X-energy postings stay open a median of 45 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.1%7 days
  4. 19.1%14 days
  5. 35.6%30 days
  6. 52.7%60 days
This job: posted 3 days ago

X-energy median: 45 days open

The posting

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, www.x-energy.com/careers/. We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at www.x-energy.com/contact-us.

Job Description

Candidates for this role must either have a background in Industrial control systems and/or operational technologies supporting nuclear, heavy utilities or manufacturing.

This position is responsible for the development and execution of cyber security engineering strategies and activities in support of plant design and engineering teams. This role integrates the cyber security philosophy into the design of plant information and operational technology systems and is responsible for implementation and assessment of cyber security systems, supports the cyber security assessments of Xe-100 systems, and recommends solutions to cyber security issues.

Job Profile Tasks/Responsibilities

  • Execute the advanced threat hunt operations using known adversary tactics, techniques, and procedures as well as indicators of attack to detect adversaries.
  • Develop threat intelligence to detect, respond, and defeat advanced persistent threats (APTs).
  • Develop and produce reports on all activities and incidents to help maintain day-to-day status, develop, and report on trends, and provide focus and situational awareness on all issues.
  • Identify and remediate control weaknesses.
  • Review data with firewall administrators, engineering, system administrators, and other appropriate groups to determine the risk of security events.
  • Perform complex (senior-level) information security analysis work.
  • Develop and recommend plans to safeguard computer/server/network configurations and data files against accidental or unauthorized modification, destruction, or disclosure and to meet emergency data processing needs.
  • Execute the performance and review of technical risk assessments and new and existing applications.
  • Develop and implement systems and procedures to prevent, detect, contain, and correct data security breaches.
  • Maintain professional demeanor and behavior at all times in all forms of communication.
  • Perform other duties as assigned by manager.

Job Profile Minimum Qualifications

  • High school diploma or equivalent.
  • Typically, five years or more of progressive experience in cybersecurity, network security, or related experience for Level III.
  • In-depth knowledge of OT cybersecurity architecture that supports various components of NIST cybersecurity framework capabilities, such as cybersecurity engineering, vulnerability management, identity management, threat intel, prediction and detection, as well as response and recovery.
  • Knowledge of ServiceNow platform capabilities, modules, and best practices.
  • Experience in ServiceNow development and architecture.
  • Familiarity with ITIL processes and service management principles.
  • Technical skills, including scripting, workflow configuration, and business rule development.
  • Ability to independently design and lead complex user interfaces, integrations and workflows.
  • Proficiency in JavaScript, AngularJS, HTML, CSS, and ServiceNow Glide API.

Location: 9801 Washingtonian Blvd Gaithersburg, MD

Hours: 8:00am-5:00pm, Mon-Fri

Work Site Expectations: Remote eligible

Travel: 10% to offices or sites

Compensation

As required by Maryland and other applicable state law, X Energy, LLC (X-energy) lists the expected compensation range for a publicly advertised job opportunity based upon the job requirements (e.g. education/training, experience, skill sets, etc.). Individual candidates who meet the job requirements for the posted position will be offered a salary within this range based on their respective levels of education/training, experience, and other qualifications unique to them. Salary ranges may vary based on the specific office location and region referenced in the posting to take into consideration differences in cost of living and may not be reflective of all regions. Please note that compensation ranges listed for US job postings reflect base salary only and do not include benefits or other incentives.

Offers within the posted salary range are commensurate with the individual’s qualifications for the position, along with a view on internal equity, market data, and room for growth. The salary range for this position is:

$112,500 - $128,250

Position Job Classification

Full time - Exempt

Benefits

X Energy, LLC offers a robust benefits package that includes a 401K plan with an employer match, Medical/Dental /Vision Insurance, Life and Disability Insurance, Paid Time Off, and a Tuition Reimbursement/Professional Development policy that supports the continuing education of our employees.

An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

X Energy, LLC participates in E-Verify. Please visit the links below for more information about E-Verify and the protection of your Right to Work.

Right To Work Link: If you have the right to work, don't let anyone take it away (e-verify.gov)

E-Verify Participation Link: E-Verify Participation Poster English and Spanish

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