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Cybersecurity System Administrator - DMV

M.C. Dean

Today
Top Secret/SCI
Unspecified
Polygraph
IT - Hardware
district of columbia, WA (On-Site/Office)

Overview

M.C. Dean is seeking a highly skilled Cybersecurity System Administrator to support a secure operational technology environment by integrating advanced system administration with proactive cybersecurity operations. This dual-role position requires an individual with both hands-on technical expertise in managing modern enterprise IT systems and a deep understanding of federal cybersecurity frameworks and risk management.

Primary Responsibilities:
System Administration Duties
  • Install, configure, upgrade, and maintain enterprise systems including:
    • Windows Server 2019/2022, Windows 10, RHEL 7/8
    • VMware ESXi / vSAN infrastructure
    • Web browsers, Adobe Acrobat, and other desktop applications
  • Manage virtual machines and storage in a VMware vSAN environment.
  • Administer Microsoft SCCM, WSUS, Active Directory (AD), Group Policy (GPO), and perform system patching and image deployment.
  • Integrate and maintain vendor systems and third-party applications within a Windows ecosystem.
  • Operate and manage jump (bastion) hosts for network segregation and secure remote access.
  • Coordinate with development and support teams to test system hardware/software and optimize performance.
  • Provide Tier 1-3 support, troubleshoot incidents, and maintain operational resilience via regular backups and recovery plans.
  • Load PKI certificates and maintain change management documentation and incident logs.
Cybersecurity Operations
  • Serve as the Information System Security Manager (ISSM) for all assigned systems.
  • Monitor networks for real-time threat indicators; investigate and respond to security events.
  • Implement and operate cybersecurity tools such as ACAS, NESSUS, SCAP, and STIG Checklists.
  • Conduct and remediate vulnerability scans; follow DISA STIGs and IAVA compliance.
  • Manage POA&Ms, deviation lists, and ensure systems maintain Authority to Operate (ATO).
  • Provide FRCS cybersecurity engineering support and continuous monitoring in accordance with DoD and Army standards.
  • Perform penetration testing, threat analysis, and security risk assessments in lab/test environments.
  • Collaborate with stakeholders to improve system hardening, respond to ICS-CERT alerts, and mitigate CAT 1/2/3 vulnerabilities.
Compliance & Documentation:
  • Maintain up-to-date security artifacts, plans, and policies as required under RMF, NIST SP 800-series, FISMA, and FedRAMP.
  • Load documentation and scan data into the A&A Asset Manager.
  • Facilitate FISMA-required annual reviews (e.g., Contingency Plans, Security Controls).
  • Support system reauthorization activities, including 5-day on-site assessments if required.
  • Educate end users on security best practices and threat awareness.
Work Conditions & Travel:
  • Primarily on-site; periodic travel may be required for assessments or installations.
  • Participation in on-site assessments up to 5 days in duration.
  • Occasional after-hours support for mission-critical operations.


Responsibilities

Position Responsibilities:

• Conduct ICS/SCADA system inventories following guidance including, but not limited to U.S. Army ICS Inventory Methodology and Unified Facilities Criteria (UFC) 4-010-06, Cybersecurity of Facility-Related Control Systems.

• Assist in the development and verification of documentation necessary to complete the DoD RMF assessment and authorization process.

• Implement Implementation of DoD Security Technical Implementation Guides (STIGs) on traditional Information Technology (IT) and Operational Technology (OT) systems.

• Conduct vulnerability scanning and document system vulnerabilities.

• Work in a team environment alongside other cybersecurity engineers and Risk Management Framework (RMF) analysts.

Required Education & Experience:
  • Active TS/SCI w/ polygraph clearance is required.

• 3+ Years of Experience with a Master's Degree in Information Technology, Risk Management, Cybersecurity

• 5+ Years of Experience with a Bachelor's Degree in Information Technology, Risk Management, Cybersecurity

• 8+ Years of Experience with an Associate's Degree in Information Technology, Risk Management, Cybersecurity

• 11+ Years with a High School Diploma

• Ability to process and operate application software, to include word-processing, spreadsheets and databases.

• Must meet the Department of Defense Directive (DoDD) 8570.01 "Information Assurance Training, Certification, and Workforce Management" and DoD 8570-M "Information Assurance Workforce Improvement Program" requirements for IAM (Information Assurance Manager) Level 2, IAT (Information Assurance Technical) Level 2, OR IASAE (Information Assurance System Architect and Engineer) Level 2.

• Documented training in the following areas: network infrastructure (Cisco), Microsoft Windows.

• Experience working on government and/commercial projects implementing cybersecurity requirements in a variety of industrial control systems (e.g., building management, electronic security, fire alarm/mass notification, electrical distribution, power management, etc.).

Qualifications

Qualifications:
Minimum Requirements:
  • DoD 8140 IAT Level II certification (e.g., Security+ CE, CCNA Security, CySA+).
  • TS/SCI clearance is required.
  • 5+ years of experience in DoD RMF cybersecurity and system administration.
  • Experience with IA tools and processes: STIGs, Nessus, SCAP, ACAS, vulnerability management.
  • Demonstrated knowledge of:
    • Windows Server/Client, RHEL, VMware
    • Cybersecurity frameworks: RMF, NIST SP 800-53, FISMA
    • Security monitoring, firewall, and encryption toolsets.
  • 3+ Years of Experience with a Master's Degree in Information Technology, Risk Management, Cybersecurity
  • 5+ Years of Experience with a Bachelor's Degree in Information Technology, Risk Management, Cybersecurity
  • 8+ Years of Experience with an Associate's Degree in Information Technology, Risk Management, Cybersecurity
  • 11+ Years with a High School Diploma or GED
Preferred:
  • Bachelor's degree in Computer Science, Information Systems, or related technical field.
  • Familiarity with federal cybersecurity policy, FRCS/ICS security operations, and DoD IA compliance.


Additional Preferred Qualifications:

• 5+ years of experience working with industry and government agencies on the design of ICS platforms and integrated ICS systems

• Strongly preferred: Meet the Department of Defense Directive (DoDD) 8570.01 "Information Assurance Training, Certification, and Workforce Management" and DoD 8570-M "Information Assurance Workforce Improvement Program" requirements for IAM (Information Assurance Manager) Level 3, IAT (Information Assurance Technical) Level 3, OR IASAE (Information Assurance System Architect and Engineer) Level 3

• Familiarity with various industry ICS products

• Experience implementing a variety of security assessment tools

• Implementation of DoD Security Technical Implementation Guides (STIGs)

• Security Readiness Review (SRR) Tools (scripts and OVAL Benchmarks, ACAS, Wireshark)

• Excellent understanding of the DoD RMF lifecycle and NIST 800-53 controls implementation

• Strong written and verbal communication skills Ability to coordinate with and support multiple team members, vendors, and government customers

• Ability to identify, maintain, and troubleshoot HMI components

• Ability to identify, maintain, and troubleshoot control network components

• Ability to interpret drawings both mechanical and electrical

• Ability to identify, maintain, and utilize SCADA systems and KPI's

• Ability to train others with lesser skills

• Ability to access all levels and areas of the facility

• Working knowledge of EMS/SCADA or other operational control systems.

• Knowledge of SCADA protocols like Modbus, IEC 60870-5-101 or 104, IEC 61850 and DNP3 and other major SCADA protocols

• Awareness of NIST Special Publication 800-82, Guide to Industrial Control Systems (ICS) Security and UFC 4-010-06 Unified Facilities Criteria (UFC) Cybersecurity of Facility

• Awareness of DoD Risk Management Framework (RMF) process.

• Possession of excellent customer service and organization skills.

• Possession of excellent oral and written communication skills.

Preferred Certifications:

• Certified Information Systems Security Professional (CISSP)

• Certified Ethical Hacker (CEH)

• Certified SCADA Security Architect (CSSA) Related Control Systems.

Abilities:

• Exposure to computer screens for an extended period of time.

• Sitting for extended periods of time.

• Reach by extending hands or arms in any direction.

• Have finger dexterity in order to manipulate objects with fingers rather than whole hands or arms, for example, using a keyboard.

• Listen to and understand information and ideas presented through spoken words and sentences.

• Communicate information and ideas in speaking so others will understand.

• Read and understand information and ideas presented in writing.

• Apply general rules to specific problems to produce answers that make sense.

• Identify and understand the speech of another person.

We offer an excellent benefits package including
  • A competitive salary
  • Medical, dental, vision, life, and disability insurance
  • Paid-time off
  • Tuition reimbursement
  • 401k Retirement Plan
  • Military Reserve pay offset
  • Paid maternity leave

Pay Range

USD $104,080.00 - USD $156,120.00 /Yr.
group id: 10119081
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About Us
M.C. Dean is Building Intelligence®. We design, build, operate, and maintain cyber-physical solutions for the nation’s most recognizable mission-critical facilities, secure environments, complex infrastructure, and global enterprises. The company’s capabilities include electrical, electronic security, telecommunications, life-safety, instrumentation and control, and command and control systems. M.C. Dean is headquartered in Tysons, Virginia, and employs more than 5,200 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms essential for long-term system sustainability.
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M.C. Dean Jobs


Job Category
IT - Hardware
Clearance Level
Top Secret/SCI
Employer
M.C. Dean