Cleared ISSE L3 – DoD Cyber Defense & Cloud Security

VSO Inc.; Lorton (VA); On-site; USD 150,000 - 190,000; Full time

Benefits offered by this job

Health benefits

Flexible work arrangements

Learning and development opportunities

Job summary

VSO Inc. seeks an experienced Information Systems Security Engineer (ISSE) to join our Lorton, Virginia team. The ISSE will conduct security assessments, engineer secure solutions, automate defensive cyber activities, and advise leadership on risks and mitigations.

The role requires expertise with ePO, Splunk, ACAS, Azure Automation, STIG/SCAP, and Active Directory to secure mission systems and ensure DoD cybersecurity compliance. Onsite work and occasional travel are required.

Qualifications

• Active IAT/IAM/IASAE Level III certification such as CASP+ (SecurityX), CISSP, or CISM.
• Active TS/SCI security clearance.
• Bachelor’s degree in CS/Engineering/Cyber security or related field with 5–8 years of experience, or 10+ years in lieu of degree.
• 3+ years of leadership experience.
• Experience configuring, deploying, and sustaining cyber security tools in a cloud environment.
• Experience configuring cloud security tools and services.
• Experience configuring Microsoft Entra ID.

Responsibilities

• Perform and review security assessments of computing environments to identify vulnerabilities and compliance gaps.
• Engineer cybersecurity solutions to support Cyber Threat and Defensive Operations.
• Configure, deploy, and sustain cyber security tools in a cloud environment (ACAS, ePO, Splunk, STIG/SCAP, YUM).
• Configure Entra ID and Azure security services related to ATO achievement.
• Automate security monitoring, threat assessments, and reporting.
• Analyze security posture trends and communicate findings to ISSM/ISSO.
• Recommend cybersecurity measures based on evolving threats.
• Implement security controls per DoD policies (CIA, authentication, non-repudiation).
• Plan modifications based on exercise results and testing outcomes.
• Mitigate or accept risks and deficiencies during certification and testing.

Skills

ePO

Splunk

ACAS

Azure Automation

STIG/SCAP

Active Directory

Microsoft Entra ID

Education

Bachelor’s degree in Computer Science, Engineering, or Cyber security

5-8 years of professional experience OR 10+ years of equivalent experience

Tools

Azure Monitor/Log Analytics

Azure VPN Gateways

Entra ID

Job description

VSO Inc. seeks an experienced Information Systems Security Engineer (ISSE) to join our Lorton, Virginia team. The ISSE will conduct security assessments, engineer secure solutions, automate defensive cyber activities, and advise leadership on risks and mitigations.

The role requires expertise with ePO, Splunk, ACAS, Azure Automation, STIG/SCAP, and Active Directory to secure mission systems and ensure DoD cybersecurity compliance. Onsite work and occasional travel are required.