Systems Administrator - Vulnerability MitigationLeidos • Charlotte, North Carolina, United States

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Systems Administrator - Vulnerability Mitigation

Leidos

Charlotte, North Carolina, United States

Charlotte, North Carolina, United States

Jetzt Bewerben

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We are seeking a Senior Systems Administrator to lead execution of vulnerability remediation and system hardening activities across a primarily Windows‑based enterprise environment. This role works in close coordination with the Information Security (INFOSEC) team and is responsible for researching, validating, and implementing remediation actions, including assessing potential system impacts prior to deployment. The Senior Systems Administrator plays a key part in achieving and maintaining system Authorization to Operate (ATO) and ongoing system accreditation efforts. While this is a Windows‑heavy position, familiarity with Linux systems and basic administration is beneficial. We are looking for a proactive, execution‑focused individual who takes ownership of assigned responsibilities and consistently drives remediation efforts to completion with minimal oversight.
Vulnerability Remediation Execution
Lead remediation of vulnerabilities based on direction and prioritization from the INFOSEC team
Research remediation options and assess potential system and operational impacts prior to implementation
Translate vulnerability findings into system‑level fixes (patching, configuration changes, registry updates, etc.)
Execute and guide remediation efforts across Windows systems, with support for Linux where applicable
Independently drive remediation efforts to completion and remove blockers as they arise
Track remediation progress and provide clear status reporting to stakeholders
System Hardening & Configuration
Research, validate, and recommend hardening changes with full awareness of system and application dependencies
Implement and refine security configurations based on established baselines and INFOSEC guidance
Disable or restrict insecure protocols, ports, and services (e.g., SMBv1, legacy TLS)
Configure and maintain secure cipher suites and encryption standards
Apply and interpret STIGs, CIS Benchmarks, or organizational hardening standards across Windows systems, with awareness of equivalent practices in Linux environments
Group Policy & Active Directory
Design, implement, and manage Group Policy Objects (GPOs) to enforce security settings
Evaluate and test policy changes to understand enterprise‑wide impact prior to deployment
Support domain‑level security configurations and account policies
Troubleshoot complex policy application issues and ensure consistent enforcement
Compliance & Reporting
Support and contribute to activities required to achieve and maintain Authorization to Operate (ATO) and system accreditation
Ensure systems meet remediation timelines aligned with accreditation and compliance requirements
Provide detailed evidence and documentation for patching, hardening, and remediation activities
Assist with audits, assessments, and validation of security controls
Collaboration
Partner with INFOSEC and Client/Server teams to coordinate and execute remediation efforts
Communicate implementation strategies, risks, and system impacts to technical stakeholders
Windows Patching & Updates
Participate in Windows patching activities in coordination with the WUS team
Validate patch applicability and remediation impact prior to deployment
Support testing and post‑deployment validation of Windows updates
Troubleshoot complex update issues in collaboration with WUS and server teams
Ensure systems meet patch compliance requirements as defined by organizational standards
Required Qualifications
Clearance: Must have a Top Secret/SCI with Poly to be considered
Must have a Bachelor’s degree and at least 12 years of experience, or a Master’s degree and at least 10 years of prior relevant experience, or 16 years of relevant career experience in lieu of degree
Client/Server experience
Linux and Windows experience
You will be required to pass both a customer required and administered medical and psychological screening, as a condition of employment
Pay Range Pay Range $116,350.00 - $210,325.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
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Charlotte, North Carolina, United States

Sprachkenntnisse

English

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