Senior Windows SysAdmin (TS/SCI) – Agile Security Lead

Leidos; Maryland; On-site; USD 116,000 - 210,000; Full time

Benefits offered by this job

Paid Time Off

11 paid Holidays

401K with 6% company match

Flexible Schedules

Education and Training Support

Parental Paid Leave

Job summary

Leidos is seeking a Senior Windows System Administrator to join a SAFe-aligned Agile team supporting a complex program. You will perform daily systems administration across multiple systems with a broad geographic footprint, deploying new capabilities and sustaining operations in a fast-paced environment.

The role requires TS/SCI with Polygraph, extensive Windows expertise, and a strong focus on security, patching, and IAM.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or a related technical field with 12 years of prior relevant experience.
• At least 7 years of Windows administration experience.
• At least 7 years of information security management experience (governance, risk, compliance, operational security).
• At least 5 years implementing and managing Windows AD and DNS environments, GPOs, SCCM, Exchange administration.
• Strong PowerShell and Windows command line experience.

Responsibilities

• Maintain multiple virtual server clusters and address patching and AD configuration issues.
• Use enterprise monitoring tools to detect, assess, and respond to alerts.
• Collaborate with partner workgroups and support cross-team efforts.
• Manage IAVAs and system security scans per SSPs, remediating vulnerabilities promptly.
• Initiate IAVA responses and deploy patches across sites with regular security scans.
• Identify and resolve hardware and software problems; provide timely user support.
• Document operations clearly and publish status updates as needed.
• Plan IT enhancements and support project-related work; provide on-call support if required.

Skills

Active Directory

DNS

GPOs

SCCM

Exchange

PowerShell

IAVA management

VMware

Ansible

Security governance

Education

Bachelor's degree in Computer Science/Information Technology

Tools

VMware

SCCM

Exchange Management Shell

PowerShell scripting

Job description

Leidos is seeking a Senior Windows System Administrator to join a SAFe-aligned Agile team supporting a complex program. You will perform daily systems administration across multiple systems with a broad geographic footprint, deploying new capabilities and sustaining operations in a fast-paced environment.

The role requires TS/SCI with Polygraph, extensive Windows expertise, and a strong focus on security, patching, and IAM.