Information Systems Security Officer II

This position requires onsite work at Kirtland Airforce Base in NM and an active Top Secret/SCI Security Clearance. Candidates who do not hold this clearance are not eligible for hire.

We are seeking a highly skilled and detail-oriented Information Systems Security Officer to join our team in support of mission-critical defense programs. You will play a key role in performing a wide range of functions to ensure the protection of government-sensitive and classified information systems supporting the identification of cyber risks, understanding applicable policies, and developing a mitigation plans.

Day in the Life:

• Establish and enforce complex system-wide security requirements for TS/SCI systems based on analysis of user needs, Intelligence Community (IC) directives, DoD policy, federal regulations, and mission constraints.
  
• Serve as the primary cybersecurity advisor for classified systems operating at the TS/SCI level, ensuring strict adherence to ICD 503, NIST RMF, CNSS policies, and agency-specific guidance.
  
• Develop, maintain, and implement System Security Plans (SSPs), Security Control Traceability Matrices (SCTMs), POA&Ms, and authorization packages for SCI systems.
  
• Support Authorization to Operate (ATO) efforts for high-impact classified systems, including mission-critical and compartmented programs.
  
• Apply specialized security controls and compartmented handling procedures to command and control (C2) networks and other special-purpose TS/SCI systems.
  
• Coordinate with program managers, system engineers, and network administrators to integrate security controls into classified system architectures and enclave designs.
  
• Conduct risk assessments and security impact analyses for cross-domain solutions, data transfers, and system interconnections within SCI environments.
  
• Monitor security posture through vulnerability scanning, STIG compliance validation, audit log review, and continuous monitoring activities across classified enclaves.
  
• Support security inspections, compliance reviews, and assessments conducted by Authorizing Officials (AOs), Security Control Assessors (SCAs), and IC oversight entities.
  
• Ensure proper implementation of access controls, privileged account management, and need-to-know enforcement within SCI compartments.
  
• Provide guidance on handling, storage, transmission, and destruction of classified information in accordance with TS/SCI handling requirements.
  
• Advise senior leadership and mission stakeholders on risk acceptance decisions, threat impacts, and mitigation strategies affecting national security systems.
  
• Maintain situational awareness of emerging cyber threats targeting classified networks and recommend defensive measures aligned with mission priorities.
  
• Collaborate with counterintelligence, physical security, and COMSEC personnel to ensure integrated protection of TS/SCI information systems.

Required Qualifications & Experience:

• Active TS/SCI clearance.
  
• Bachelor's degree in Cybersecurity, Information Technology, Computer Science, Information Assurance, or related field (or equivalent combination of education and experience).
  
• 5-10+ years of progressive experience in information assurance, cybersecurity, or ISSO roles supporting classified or national security systems.
  
• Demonstrated experience establishing and implementing complex, system-wide information security requirements based on analysis of user needs, federal policies, regulatory mandates, and operational resource constraints.
  
• In-depth knowledge of Risk Management Framework (RMF) processes in accordance with NIST SP 800-37, NIST 800-53, CNSS, and ICD 503 requirements.
  
• Experience developing and maintaining security authorization artifacts, including System Security Plans (SSPs), POA&Ms, Security Control Assessments (SCAs), and continuous monitoring documentation for high-impact systems.
  
• Proven ability to support senior leaders and mission stakeholders in the development and implementation of cybersecurity doctrine, policy, and governance frameworks.
  
• Expertise securing government and commercial common user systems, including enterprise networks, cloud environments, and shared services infrastructures.
  
• Experience applying specialized security controls and procedures to dedicated special-purpose systems, such as command and control (C2) networks, mission systems, or other national security systems requiring enhanced protections.
  
• Strong understanding of security controls for classified environments, including access control, auditing, configuration management, incident response, cross-domain solutions, and secure system interconnections.
  
• Experience conducting risk assessments, vulnerability analysis, and compliance reviews within TS/SCI environments.
  
• Ability to interpret and apply federal cybersecurity regulations, DoD/IC directives, and agency-specific policies to operational systems.
  
• Strong analytical, documentation, and briefing skills, with the ability to clearly articulate risk posture and mitigation strategies to executive leadership.

Preferred Qualifications & Experience:

• Ability to work through challenging security requirements to maintain compliance
• Possession of excellent written, presentation, and verbal communication skills
• Possession of excellent organizational skills
• CGRC, CCNA-Security, CASP+, CISSP, or Security+ Certification
• AWS Solutions Architect or Certified Security - Specialty Certification
• Active TS/SCI clearance with a polygraph

Benefit selection, customer contractual specifications, relevant work experience, skills, competencies, certifications, and clearance status will influence the final salary.

What we will bring:

Solidus offers you an exciting opportunity to tackle the nation's greatest challenges applying innovation and expertise to produce cutting-edge results that have a long-lasting impact. We offer outstanding benefits, generous PTO and much more! Apply today to learn why Solidus has a 4.9/5 Star rating on Glassdoor!

Req ID: 5225

Solidus is an Equal Opportunity Employer and provides equal employment opportunities regarding all terms and conditions of employment to all employees and qualified applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. The Company will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application and interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request an accommodation.

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Please Note: Solidus does not accept applications from agencies, 3rd party vendors, or applications with incomplete information.