Senior Cyber Security Analyst

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA).  Our MISSION is to help ensure the security of the United States and its allies by providing high-hazard experimentation and incident response capabilities through operations, engineering, education, field, and integration services and by acting as environmental stewards to the Site's Cold War legacy.  Our VISION is to be the user site of choice for large-scale, high-hazard, national security experimentation, with premier facilities and capabilities below ground, on the ground, and in the air. (See for our unique capabilities.) Our 2,750+ professional, craft, and support employees are called upon to innovate, collaborate, and deliver on some of the more difficult nuclear security challenges facing the world today.   

• MSTS offers our full-time employees highly competitive salaries and benefits packages including medical, dental, and vision; both a pension and a 401k; paid time off and 96 hours of paid holidays; relocation (if located more than 75 miles from work location); tuition assistance and reimbursement; and more.  
• MSTS is a limited liability company consisting of Honeywell International Inc. (Honeywell), Jacobs Engineering Group Inc. (Jacobs), and HII Nuclear Inc.

NNSS is seeking an experienced candidate for Senior Cyber Security Analyst - Security Engineering to play a critical role in safeguarding company infrastructure from cyber threats and attacks. The position is responsible for designing, implementing, managing, and enhancing security measures to protect sensitive data, networks, systems, and applications. 

Key Responsibilities

• Assist the Information System Security Manager (ISSM) and Information System Security Officers (ISSOs) with the execution of their assigned duties. 
• Contribute to an overall productive and respectful work environment by providing excellent customer service and working in a positive, collegial manner always.
• Maintain cooperative and respectful working relationships with Cyber Security staff, other divisions, and other customers.
• Review Cyber Security threat information and assists with mitigating identified vulnerabilities.
• Conduct Cyber Security policy compliance tasks including discovering unauthorized devices, conducting site surveys for non-compliance, and ensuring network access requirements are met.
• Perform Security Test and Evaluations of information systems in support of a security plan.
• Review information system plans for classified and unclassified systems.
• Complete certification and accreditation of information systems on classified and unclassified systems and networks, assists with the completion and mitigation of security testing and evaluations results.
• Collaborate with cross-functional teams to design, deploy, and maintain security controls, including firewalls, intrusion detection/prevention systems, endpoint protection, encryption, and multi-factor authentication solutions.
• Design networks and systems with a security focus, ensuring systems are developed in accordance with federal law, customer requirements, certification and accreditation requirements, and industry best practices.
• Review purchase requests for technology items and provide input to senior level Cyber Security staff regarding the risk associated with purchases.
• Review current Cyber Security threat information and assist the Threat Evaluation Team with mitigating vulnerabilities identified.
• Assist with data calls, Federal Information Security Modernization Act (FISMA) reporting, compliance scanning and reporting, continuous monitoring and compiling reports for auditors.
• Perform other duties assigned by Management.

• Bachelor's degree or equivalent training and experience in a computer-related field and at least 5 years of related experience.
• Strong knowledge of network security principles, protocols, and technologies (e.g., TCP/IP, DNS, VPN, SSL/TLS).
• Strong understanding of National Institute of Standards and Technology (NIST) security standards. Ability to apply NIST-defined measures to harden information infrastructure. 
• Hands-on experience with security tools and technologies, such as SAML, OAUTH, SIEM, IDS/IPS, DLP, WAF, EDR, and vulnerability management systems.
• Familiarity with cloud computing platforms (e.g., AWS, Azure, GCP) from a security perspective.
• Excellent analytical, problem-solving, and communication skills with the ability to collaborate effectively with diverse teams and stakeholders.
• Strong commitment to continuous learning, professional development, and staying current with evolving cyber threats and security technologies.
• Preferred Certifications (please upload certifications when applying):
  • Certified System Security Professional (CISSP)
  • GIAC Security Essentials (GSEC)
  • GIAC Information Security Professional Certification (GISP)
  • Certified Ethical Hacker (CEH)
  • Certified Information Security Manager (CISM)
  • CompTIA Security Practitioner (CASP+)
• The primary work location will be at the Losee Road facility in North Las Vegas, Nevada.
• Work schedule for this position will be 4/10's, Monday – Thursday (subject to change).
• Pre-placement physical examination, which includes a drug screen, is required. MSTS maintains a substance abuse policy that includes random drug testing.
• Must possess a valid driver's license.

MSTS is required by DOE directive to conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants offered employment with MSTS are also subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment. In addition, Applicants for employment must be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship, at least 18 years of age. Reference DOE Order 472.2, "Personnel Security". If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted.

Department of Energy Q Clearance (position will be cleared to this level). Reviews and tests for the absence of any illegal drug as defined in 10 CFR Part 707.4, "Workplace Substance Abuse Programs at DOE Sites," will be conducted.  Applicant selected will be subject to a Federal background investigation, required to participate in subsequent reinvestigations, and must meet the eligibility requirements for access to classified matter. Successful completion of a counterintelligence evaluation, which may include a counterintelligence-scope polygraph examination, may also be required. Reference 10 CFR Part 709, "Counterintelligence Evaluation Program."

MSTS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability, veteran status or other characteristics protected by law. MSTS is a background screening, drug-free workplace.

Annual salary range for this position is: $97, $145,828.80.

Starting salary is determined based on the position market value, the individual candidate education and experience and internal equity.