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M.C. Dean

Designs and deploys secure mission-critical infrastructure

Information Systems Security Manager

CybersecurityPosted on Nov 12
Full-timeTysons, VA, USA$150.1k - $187.6k /yrIn-person

About the Job

Requirements

  • At least 7 years of cybersecurity management experience in Information System Security Officer or Information System Security Manager roles, including developing, maintaining, and enforcing information system security policies and system security plans, performing system audits, and facilitating assessment and authorization activities.
  • Working knowledge of information technology concepts, platforms, and technologies, including Microsoft Windows and/or Linux operating systems, system virtualization across multiple hypervisors in a secure network environment, TCP/IP networking protocols and services, and related security technologies and applicable security benchmarks such as DISA Security Technical Implementation Guides.
  • Working knowledge of information security concepts such as encryption and Public Key Infrastructure.
  • Working knowledge of and hands-on experience with compliance scanning tools such as SCAP, vulnerability scanning tools such as ACAS, and eMASS.
  • A bachelor's degree in Information Security, Information Technology, Computer Science, or a related field and at least 10 years of experience, or a master's degree in one of those fields and at least 7 years of experience.
  • CISSP certification or equivalent.
  • Active TS/SCI clearance.

Responsibilities

  • Develop, implement, and continuously improve cybersecurity functions for multiple critical systems, and provide strategic and tactical leadership to cybersecurity staff, including Information System Security Officers and cybersecurity analysts.
  • In collaboration with the Facility Security Officer and business leadership, establish the Information Systems Security Program and identify, pursue, and maintain cybersecurity accreditations and authorizations for critical enterprise and/or customer information systems.
  • Lead the development, implementation, and continuous improvement of information security policies, standards, plans, and procedures to maintain security posture, ensure compliance, and enable effective business functions.
  • Lead the identification, assessment, and mitigation of cybersecurity risks; own system monitoring and auditing, threat intelligence, vulnerability management, incident response, cybersecurity awareness, and other continuous monitoring processes.
  • Lead investigations of computer security violations and incidents, reporting as necessary to the Facility Security Officer and Senior Program Managers.
  • Ensure effective collaboration among cybersecurity, information systems infrastructure, and software development and operations teams to design, implement, and maintain cybersecurity controls and secure system development practices consistent with established policies and standards.
  • Provide organizational leadership, including expertise development, budget management, and resource allocation, in support of established policies, plans, and strategic direction, and to extend cybersecurity capabilities to customer-facing operations.
  • Establish and maintain relationships with authorizing officials, assessment organizations, customer information security officials, business unit leaders, engineering organizations, and other internal and external stakeholders.
  • Act as the primary responsible party for system audits, assessments, and authorization activities.
  • Develop and deliver regular updates to company leadership on information security posture, incidents, compliance, and strategic direction.

About the Company

M.C. Dean

Designs and deploys secure mission-critical infrastructure

M.C. Dean designs, builds, operates, and maintains integrated cyber-physical systems for mission-critical facilities, secure environments, and large enterprises. Its work spans electrical power, security, telecommunications, life safety, automation and controls, audio-visual, and IT systems, all coordinated through management platforms that support long-term operation and sustainability. The company works end-to-end: it engineers solutions, installs them, and then runs and maintains them to ensure continuous, secure, and resilient performance. What sets it apart is its ability to provide comprehensive, turnkey technology and infrastructure services for critical environments—combining physical systems with digital management to create secure, automated facilities. The goal is to deliver automated, secure, and resilient power and technology systems and the platforms needed to manage them over the long term.

Company size
1,001-5,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Tysons, VA
Founded
1949

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