Senior Cybersecurity Analyst (RMF/ISSO Lead)

COLSA Corporation is seeking a Senior Cybersecurity Analyst (RMF/ISSO Lead) to support a U.S. Army contract. This position is located on-site at Redstone Arsenal in Huntsville, Alabama . The selected candidate will serve as an Information Systems Security Officer (ISSO), overseeing Risk Management Framework (RMF) activities and supporting the Authorization to Operate (ATO) process for multiple information systems, including enclaves and major applications across classified and unclassified networks.

This position will also provide technical guidance and supervision to an existing team of cybersecurity analysts, coordinate with system and network administrators and government engineering teams, and support continuous monitoring, vulnerability management, and security compliance activities. * Principal Duties and Responsibilities (Essential Functions): Manage RMF Assessment and Authorization (A&A) activities, including the development, maintenance, and submission of authorization packages in accordance with DoD and Army cybersecurity requirements.

Maintain and update system security documentation and authorization artifacts in eMASS, including System Security Plans (SSPs), security architectures, hardware and software inventories, Plans of Action and Milestones (POA&Ms), and risk acceptance memoranda. Implement, assess, and monitor security controls to maintain compliance with applicable cybersecurity requirements and support ongoing authorization activities.

Develop and maintain security-focused configuration management plans and support Information System Owners in fulfilling Information Security Continuous Monitoring (ISCM) responsibilities. Conduct security assessments, vulnerability audits, configuration reviews, and security impact analyses to identify and mitigate cybersecurity risks.

Monitor compliance with DISA Security Technical Implementation Guides (STIGs) and Security Requirements Guides (SRGs) using tools such as STIG Viewer and Evaluate-STIG. Analyze security findings and monitoring data using tools such as Tenable Nessus/ACAS, Trellix Government Cyber Suite (HBSS), Splunk, Elasticsearch, and other cybersecurity tools.

Collaborate with system and network administrators and government engineering teams to troubleshoot security issues, remediate vulnerabilities, and resolve cybersecurity incidents. Identify deviations from approved system configurations, security baselines, and applicable policies, and recommend corrective actions. Support the implementation and troubleshooting of security software and provide recommendations to strengthen system and network security.

Prepare technical documentation, reports, and recommendations to support RMF authorization decisions and ongoing security compliance. Develop cybersecurity training materials and provide technical guidance and mentoring to team members. Supervise assigned COLSA cybersecurity analysts, including managing work assignments, schedules, timekeeping, performance evaluations, and professional development.

Prepare and provide weekly and monthly team status reports. Perform other duties as assigned At COLSA, people are our most valuable resource and centered at our core value. We invite you to unite your talents with opportunity and be a part of our “Family of Professionals!” Learn about our employee-centric culture and benefits here: https://www.

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