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Senior Cyber Systems Administrator

Job in Rockville, Montgomery County, Maryland, 20849, USA
Listing for: X-energy
Full Time position
Listed on 2026-08-14
Job specializations:
  • IT/Tech
    Cybersecurity
Job Description & How to Apply Below
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, 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 ;br>
Job Description
X-energy is looking for a Senior Cyber Systems Administrator for the development and execution of cyber security engineering strategies and activities in support of plant design and engineering teams.
This is a hands-on technical position for expert-level candidates with 15 years' experience or more.
This role will focus on the efforts of building a lab for an industrial control systems environment. Candidates must be able to help lead installation, hardening and administration of these systems. Knowledge of operational technologies, SIEM set up, and building endpoint detection from scratch is vital to this role.

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, fifteen years combined experience of Cyber Engineering, IT Networking and Operational Technologies required for a Level V, 10 years required for a Level IV.
  • Advanced knowledge and experience managing cybersecurity tools such as NDR, EDR, and SIEM.
  • Advanced experience with Azure and AWS.
  • One or more of the following qualifications is required:
    Certified Information Systems Security Professional (CISSP), Certified Information Systems Auditor (CISA), GIAC (Global Information Assurance Certification), Certified Incident Handler GCIH, GIAC Certified Penetration Tester (GPEN), Global Industrial Cybersecurity Professional (GICSP) or equivalent.
  • Identity and Access Management technologies including Federation, Multi-Factor Authentication (MFA), and Public Key Infrastructure (PKI).
  • Cloud technologies to include AWS, Azure, Docker, Kubernetes, and Dev Sec Ops .
  • Networking, Firewall, and software-defined networking.
  • Integration of cybersecurity tools to support an Enterprise level Cybersecurity program.
  • Leveraging Artificial Intelligence (AI), Machine Learning (ML), and Orchestration to secure the environment.
  • Knowledge of Service Now platform capabilities, modules, and best practices.
  • Experience in Service Now 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 Service Now 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…
Position Requirements
10+ Years work experience
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