JobsCyber SecurityWashington, DCICS / OT Cyber Security Engineer

X-energy

Posted yesterday

ICS / OT Cyber Security Engineer

X-energy · Rockville, Maryland, United States

Full-timeRemote5-10 yrs$125k–$143kListed as no visa sponsorshipNuclear Electric Power Generation
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In short

This role is responsible for developing and executing cyber security engineering strategies to support plant design and operational technology systems. The engineer will perform threat hunting, conduct technical risk assessments, and implement systems to detect and remediate security weaknesses.

What they're looking for

MUST-HAVE SKILLS

Cybersecurity engineeringIndustrial control systemsOperational technologiesThreat huntingThreat intelligenceNIST cybersecurity frameworkServiceNowITIL

ALSO MENTIONED

ICSOTCyber SecurityNuclearUtilitiesManufacturingThreat HuntAPTFirewallSystem Administration

Candidates must have at least five years of progressive experience in cybersecurity or network security, with a background in industrial control systems or operational technologies. Proficiency in ServiceNow development and knowledge of the NIST cybersecurity framework are required.

About the employer

X-energy

At X-energy, we design and deploy transformative technology to fuel the future of humanity, leveraging decades of expertise in high-temperature gas-cooled reactor and TRISO fuel technology to deliver the next generation of clean, safe, reliable energy.

Read more

Our reactors and fuel target a new standard for what nuclear energy can do: innovative and intrinsically safe energy solutions engineered to empower the unprecedented. With an 11.5 GW commercial pipeline for our Xe-100 small modular reactor, and a first-in-the-nation TRISO-X fuel campus under construction in East Tennessee, we’re working to drive full-scale commercialization that enables nuclear power to expand into the industries powering the future. Together, our technology drives enhanced safety, lower cost, faster construction timelines, and scalable deployment when compared with other SMRs and conventional nuclear. As a technology and fuel provider, we give our partners and customers what they need to bring forward reliable, always-on power — wherever ambition leads.

INDUSTRY
Nuclear Electric Power Generation
COMPANY
Privately Held
HEADQUARTERS
Rockville, MD
SIZE
501-1,000on LinkedIn
OFFICES
1 on LinkedIn

KNOWN FOR

Nuclear EnergyAdvanced NuclearPebble Bed Nuclear ReactorZero-emission energyNuclear PowerClean Energy

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Questions about this role

Is this X-energy role remote?
Tagged remote.
What does it pay?
The posting lists $125,000–$142,500 a year.
Does it sponsor visas?
Listed as no visa sponsorship.
What experience does it ask for?
Listed as 5-10 years.

The posting, in full

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.

▶ READ THE FULL 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:

Level III: $125,000 to $142,500

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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This listing comes from X-energy's own careers site. Apply links go to the employer. Company facts are from X-energy's public profile. Last checked 6 Nov 2026.