← Back to Jobs
Employee
Administrative
Information Systems Security Officer (ISSO) with Security Clearance
Tetrad Digital Integrity (TDI)Alexandria, VA🇺🇸United StatesPosted 13 Jul 2026
Quick Overview
Work Type
Hybrid
Schedule
Employee
Level
Mid Senior
Job Description
Tetrad Digital Integrity (TDI) is a leading-edge cybersecurity firm with a mission to safeguard and protect our customers from increasing threats and vulnerabilities in this digital age. TDI is looking for a Secret cleared ISSO to support our DISA customer on a hybrid basis out of Alexandria VA. RESPONSIBILITIES: Establish, implement, and enforce cybersecurity policies, procedures, and practices in support of customer objectives and DoD requirements.
Develop, maintain, and submit Assessment & Authorization (A&A) documentation, including Body of Evidence artifacts, SSPs, and related security documentation within eMASS to support authorization and continuous monitoring activities.
Serve as the Information System Security Officer (ISSO) for assigned Joint Service Provider (JSP) systems and lead authorization and reauthorization efforts, including coordinating required activities and meetings.
Validate and monitor compliance with Information Assurance (IA), cybersecurity, customer, and local security requirements to ensure systems are operated, maintained, and disposed of in accordance with established policies and procedures.
Conduct security audits, reviews, assessments, and control testing to verify the effectiveness of security controls; analyze findings and implement corrective actions to remediate vulnerabilities and audit discrepancies.
Provide security engineering reviews of proposed system changes, including hardware, software, and connectivity modifications, and advise the Information System Security Manager (ISSM) on security impacts.
Provide IA and cybersecurity subject matter expertise throughout all phases of the System Development Life Cycle (SDLC) to ensure security requirements are appropriately addressed.
Develop and maintain processes and procedures for ISSO team operations and support lessons learned activities to improve team productivity and efficiency.
Communicate and collaborate effectively with internal teams, customer personnel, and stakeholders to support security objectives and mission requirements.
QUALIFICATIONS:
Active Secret clearance.
Bachelor's degree and at least 4 years of relevant experience. Additional experience may be substituted for a degree.
DoDI 8570 IAM or IAT Level II Certification.
Develop, maintain, and submit Assessment & Authorization (A&A) documentation, including Body of Evidence artifacts, SSPs, and related security documentation within eMASS to support authorization and continuous monitoring activities.
Serve as the Information System Security Officer (ISSO) for assigned Joint Service Provider (JSP) systems and lead authorization and reauthorization efforts, including coordinating required activities and meetings.
Validate and monitor compliance with Information Assurance (IA), cybersecurity, customer, and local security requirements to ensure systems are operated, maintained, and disposed of in accordance with established policies and procedures.
Conduct security audits, reviews, assessments, and control testing to verify the effectiveness of security controls; analyze findings and implement corrective actions to remediate vulnerabilities and audit discrepancies.
Provide security engineering reviews of proposed system changes, including hardware, software, and connectivity modifications, and advise the Information System Security Manager (ISSM) on security impacts.
Provide IA and cybersecurity subject matter expertise throughout all phases of the System Development Life Cycle (SDLC) to ensure security requirements are appropriately addressed.
Develop and maintain processes and procedures for ISSO team operations and support lessons learned activities to improve team productivity and efficiency.
Communicate and collaborate effectively with internal teams, customer personnel, and stakeholders to support security objectives and mission requirements.
QUALIFICATIONS:
Active Secret clearance.
Bachelor's degree and at least 4 years of relevant experience. Additional experience may be substituted for a degree.
DoDI 8570 IAM or IAT Level II Certification.
Similar jobs
Lead Systems Administrator with Security Clearance
NT Concepts · Vienna, United States
12 minutes ago$120.3k - $180.5k/yrIT Security Analyst
Decisionpoint Corporation · Wright-Patterson Air Force Base, United States
29 minutes agoTECHNICAL WRITER-SS with Security Clearance
MCLAUGHLIN RESEARCH CORP · Newport, RI 02840 US (Primary), United States
40 minutes agoWindows Vulnerability Researcher - up to 260K - FS Poly with Security Clearance
SRC · Annapolis Junction, United States
40 minutes ago$260k/yrVulnerability Researcher - Hybrid - TS with Security Clearance
SRC · Arlington, United States
40 minutes agoTest Engineer L2 - HPC/Linux with Security Clearance
Power3 Solutions · Annapolis Junction, United States
41 minutes ago$150k - $175k/yr