# Senior System Administrator

**Company**: Leidos
**Location**: Norfolk, VA
**Work arrangement**: onsite
**Experience**: senior
**Job type**: full-time
**Salary**: $87,100.00 - $157,450.00
**Category**: IT
**Industry**: Technology

**Apply**: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Norfolk-VA/System-Administrator_R-00195558?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_7c51d549-a2d

## Description

We are seeking a highly skilled and mission-oriented Senior System Administrator to join our enterprise IT operations team located in Norfolk, VA.

In this critical role, you will be responsible for guiding a team in provisioning, installing, configuring, operating, and maintaining system hardware, software, and related infrastructure.

**Key Responsibilities:**

- Infrastructure Maintenance & Operations: Administer, monitor, and maintain physical and virtual servers, operating systems, and enterprise storage solutions to ensure baseline operational efficiency and minimum downtime.

- Security & Compliance: Apply Security Technical Implementation Guides (STIGs) to operating systems, applications, and network devices.

- Vulnerability Management: Perform regular vulnerability scans, analyze results, and execute timely system patching, remediation, and mitigation strategies against recognized security threats.

- Automation & Configuration Management: Develop, test, and implement automated scripts and workflows using tools like PowerShell, Ansible, and Jenkins to streamline system provisioning, deployment, and configuration baselines.

- Backup & Disaster Recovery: Manage enterprise-wide backup and recovery procedures, routinely testing data integrity and failover systems to safeguard critical operational workloads.

- Technical Support & Documentation: Provide Tier III system administration support to isolate and resolve complex technical infrastructure issues.

**Required Qualifications**

- Citizenship: Must be a United States Citizen.

- Security Clearance: Must possess and maintain an active Department of Defense (DoD) Secret security clearance.

- Certification: Must hold a current DoD 8570.01-M Information Assurance Technical (IAT) Level II certification.

- Experience: Bachelor's degree or equivalent experience with a minimum of 4+ years of progressive experience in system administration, managing enterprise infrastructure, server operating systems (Windows/Linux), or virtualized environments.

**Preferred Qualifications**

- Core Technical Certifications: Possession of CompTIA Network+

- Cloud Certifications: Active Microsoft AZ-900 Certified

- Security & Framework Familiarity: Strong operational familiarity with DISA STIGs, Risk Management Framework (RMF) processes, automated vulnerability management platforms, and federal compliance frameworks.

- Automation & DevOps Tools: Hands-on experience developing automation or configuration-management routines using PowerShell, Ansible, Jenkins, and version control repositories like Bitbucket.

**Working Environment**

- This is a 100% on-site role in Norfolk, VA.

- Required to work schedules that extend to evenings, nights, weekends, and occasional holidays.

## Skills

### Required
- PowerShell
- Ansible
- Jenkins
- CompTIA Security+
- CySA+
- CCNA Security
- GSEC
- SSCP
- DISA STIGs
- Risk Management Framework (RMF)
- automated vulnerability management platforms

### Nice to have
- CompTIA Network+
- Microsoft AZ-900 Certified
- Bitbucket

---

Source: [Apply at leidos.wd5.myworkdayjobs.com](https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Norfolk-VA/System-Administrator_R-00195558?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)