Information System Security Manager (ISSM)

MBL Technologies•Crystal City, TX

12d•Hybrid

About The Position

MBL Technologies, Inc. is seeking an experienced Information System Security Manager (ISSM) to provide cybersecurity leadership and oversight for assigned information systems, programs, or enclaves. The ISSM will lead Risk Management Framework (RMF) activities, support system authorization efforts, manage cybersecurity risk and vulnerability remediation, and oversee Information System Security Officers (ISSOs) and other security support personnel. This position serves as a primary cybersecurity lead, working closely with program leadership, system owners, engineers, assessors, and Authorizing Officials to ensure systems remain secure, compliant, and operationally ready.

Requirements

Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, Engineering, or a related field preferred.
Relevant DoD 8140-aligned cybersecurity certification, such as CISSP or another certification appropriate to the position.
8+ years of cybersecurity, information assurance, or information systems security experience.
Experience providing cybersecurity leadership, security oversight, or team coordination.
Strong knowledge of NIST SP 800-53, RMF processes, ATO lifecycle activities, and DoD cybersecurity requirements.
Demonstrated experience leading cybersecurity governance, compliance, and risk management activities.
Experience supervising ISSOs or coordinating security activities across multiple technical teams.
Experience with vulnerability management, security assessments, POA&M governance, remediation, and security documentation.
Familiarity with vulnerability scanning tools, DISA STIG validation, and cybersecurity compliance workflows.
Strong written and verbal communication skills, including the ability to provide executive-level updates, risk briefings, and audit support.
Active Secret security clearance.

Nice To Haves

Prior experience supporting cybersecurity programs within DoD or other federal environments.
Experience working directly with Authorizing Officials, system owners, assessors, and senior program leadership.
Ability to operate effectively in a fast-paced, compliance-driven environment.
Strong judgment in evaluating cybersecurity risk while balancing operational and mission requirements.
Demonstrated ability to build trusted relationships with technical teams and senior leadership.
Detail-oriented approach to cybersecurity documentation, authorization, governance, and continuous monitoring.

Responsibilities

Lead and oversee RMF implementation and execution across assigned information systems, programs, or enclaves.
Direct and support Authority to Operate (ATO) activities, ensuring required security documentation is complete, accurate, current, and audit ready.
Manage, coach, and provide technical guidance to ISSOs and other cybersecurity personnel.
Oversee vulnerability management, cybersecurity risk assessments, POA&M tracking, and remediation prioritization.
Develop, implement, and enforce cybersecurity policies, procedures, controls, and training requirements.
Coordinate with Authorizing Officials, system owners, CISO personnel, engineers, assessors, and program leadership to evaluate and communicate system security and risk posture.
Ensure compliance with applicable federal and DoD cybersecurity requirements, including NIST RMF, NIST SP 800-53, and related DoD cybersecurity guidance.
Provide cybersecurity governance and oversight throughout the system authorization lifecycle.
Support continuous monitoring activities and ensure identified security weaknesses and vulnerabilities are appropriately documented, tracked, and remediated.
Communicate cybersecurity risks, compliance status, and recommendations to program and senior leadership.