Senior Windows SysAdmin — TS/SCI Poly, Flexible Schedule

Leidos; Corridor North (MD); On-site; USD 116,000 - 210,000; Full time

Benefits offered by this job

Paid Time Off

Holidays

401K with company match

Flexible schedules

Stock purchase plan

Education and training support

Parental leave

Job summary

Leidos is seeking a Senior Windows System Administrator to join a fast-paced Agile team within the SAFe framework. You will manage daily Windows systems operations across a broad geographic footprint, while deploying and sustaining new capabilities and coordinating with engineering and security teams.

The role requires TS/SCI with Polygraph up front, extensive AD, DNS, and PowerShell expertise, and hands-on experience with VMware and IAVA management.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field; 12 years’ experience.
• 7+ years Windows administration experience.
• 7+ years information security governance, risk, and compliance experience.
• 5+ years with Windows AD/DNS, GPOs, SCCM, and Exchange management.
• Proficiency with Windows CLI, PowerShell, and scripting.
• Strong knowledge of security protocols, standards, and IA principles.

Responsibilities

• Monitor and maintain test infrastructure, applications, and processes; track issues.
• Configure and support server, firewall, and network devices; ensure security patching.
• Lead IAVA management and system security scans; remediate vulnerabilities.
• Collaborate across teams; provide technical support and documentation.
• Execute system security scans, patch deployments, and status communications.
• Respond to incidents and outages; perform on-call duties as needed.

Skills

Windows admin

PowerShell

IAVA management

VMware

Active Directory

DNS

Group Policy

Security governance

Information Assurance

Security principles

Education

Bachelor’s degree in CS/IT

Tools

VMware

SCCM

Exchange

Job description

Leidos is seeking a Senior Windows System Administrator to join a fast-paced Agile team within the SAFe framework. You will manage daily Windows systems operations across a broad geographic footprint, while deploying and sustaining new capabilities and coordinating with engineering and security teams.

The role requires TS/SCI with Polygraph up front, extensive AD, DNS, and PowerShell expertise, and hands-on experience with VMware and IAVA management.