Senior Information Systems Security Officer (Team Lead)

• Implement, maintain, and enforce information systems security requirements, policies, standards, and procedures.
• Monitor system security posture, identify potential threats, and coordinate incident response and remediation activities.
• Conduct security risk assessments, vulnerability assessments, and system scans to identify and address potential security weaknesses.
• Configure, manage, and maintain cybersecurity tools and technologies, including firewalls, intrusion detection/prevention systems (IDS/IPS), and security information and event management (SIEM) platforms.
• Analyze security monitoring data, system logs, and vulnerability scan results to identify risks and recommend corrective actions.
• Support compliance with federal cybersecurity requirements, including the Federal Information Security Modernization Act (FISMA).
• Apply established security frameworks and standards, including NIST, ISO 27001, and CIS Controls.
• Develop, implement, and maintain internal security policies, agency standards, and operating procedures.
• Evaluate network architecture, communication protocols, and system configurations to identify security risks.
• Assess encryption technologies, key management practices, and data protection controls.
• Evaluate and strengthen security configurations across Windows and Linux operating systems.
• Collaborate with technical teams and stakeholders to address security findings, implement safeguards, and support continuous security improvement.

• 5+ years experience in an ISSO capacity.
• Demonstrated expertise in systems security requirements and policy.
• Strong incident response and management experience
• Demonstrated experience with, and knowledge of, security frameworks and standards such as NIST, ISO 27001, and CIS Controls.
• Extensive use of threat monitoring platforms.
• Experienced with, and knowledgeable of, security technologies, tools, and methodologies (e.g. firewalls, IDS/IPS, SIEM systems).
• Can demonstrate experience with network protocols and architecture.
• Heavy experience with data encryption techniques and key management practices.
• Proficiency with compliance requirements (FISMA).
• Ability to work with operating systems (e.g. Windows and Linux) and their security features.
• Experience conducting and analyzing system scans.
• Hands-on with designing and implementing security internal policies, agency standards, and procedures.
• Proficiency with risk assessment and management techniques.
• Experienced configuring and managing security tools and systems.

Required Certifications (One or more):

• Certifications (C)ISSO, CISA, CISM, CISSP.

Security Clearance:

• Top Secret / SCI with CI Polygraph

Join a mission-driven team where your cybersecurity expertise directly supports U.S. national security. At Data Intelligence, LLC, we offer competitive compensation, a collaborative culture, and the opportunity to work alongside top talent in support of our country’s most critical operations.