Cyber System Administrator, Senior

Responsibilities

• Administers configures andmaintainsclassified and unclassified information systems supporting operational and mission requirements.

• Manages user accounts roles permissions and access controlsin accordance withsecurity policies and least privilege principles.

• Monitors system performance availability and security using approved tools toidentifyand resolve issues.

• Implements system hardening patch management and configuration baselines tomaintaincybersecurity compliance.

• Supports accreditation authorization and continuous monitoring activities in alignment with DoD cybersecurity requirements.

• Troubleshoots hardware software and network issues to ensure system reliability and continuity of operations.

• Maintains system documentation configuration management records and standard operating procedures.

• Coordinates with cybersecurity network and operations teams to support incident response and risk mitigation.

• Performs data backup recovery and continuity procedures to protect mission-critical information.

• Provides technical support and guidance to users and stakeholders on system capabilities and security best practices.

Qualifications:

• TS/SCI clearance

• Bachelors degree in computer science Information Technology Cybersecurity or related technical field

• 5 years executing cyber system administration responsibilities for DOW systems in TS or higher environment

• DoD 8570.01-M IAT Level II or IAT Level III certification (Security CECySA GICSP GSEC or SSCP)

• Computing Environment certification (Windows: MCSA or Linux/RHCSA or equivalent))

• Demonstrated experience managing Windows Server and/or Linux operating systems

• Proven experience implementing andmaintainingcybersecurity controls and STIG compliance

• Experience with network administration including TCP/IP DNS DHCP VPN andfirewallconfigurations

• Proficiencywith Active Directory Group Policy and user access management

• Knowledge of virtualization technologies (VMware Hyper-V)

Desired Qualifications

• DoD 8570.01-M IAM Level I II or III (CND CISM CISSP)

• Advanced technical certifications (CCNA RHCE MCSE or equivalent)

• Cloud certifications (AWS Azure or CompTIA Cloud)

• Strong written and verbal communication skills for technical documentation and briefings

• 5 years of experience in DoD cyber operations or military IT environments

• Experience with DoD Risk Management Framework (RMF) and Authorization to Operate (ATO) processes

• Background supporting SCIF or othersensitive compartmentedinformation environments

• Experience with cybersecurity incident response and forensic analysis

• Demonstrated experience with automation and scripting (PowerShell Python Bash)

• Familiarity withDevSecOpspractices and CI/CD pipelines

• Experience with cloud infrastructure administration (AWS GovCloud Azure Government)

• Previousexperience with DISA guidance CMMC compliance or CNSSI standards