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# IT Systems Engineer Senior

- **Company:** Science Applications International Corporation
- **Location:** Suffolk, VA, United States
- **Experience:** Expert
- **Salary:** $80,001.0 - $120,000.0
- **Contract:** Permanent contract
- **Skills:** Active Directory, Systems Engineering, Bash Shell, Configuration Management, Computer Networks, Linux, Disaster Recovery, Domain Name System (DNS), Firmware, Subnetting, Virtual Private Networks (VPN), Python (Programming Language), Windows Servers, Network Architecture, Routing, Windows PowerShell, Red Hat Enterprise Linux, Ansible, TCP/IP, VMware VSphere, Network Routers, Firewalls (Computer Science), Containerization, Information Technology, Puppet, Comptia Linux+, Terraform, Jenkins
- **Published:** October 8, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9224313/it-systems-engineer-senior

## About the Role

* Bachelor's Degree in computer science or related discipline and two (2) years of relevant experience in enterprise architecture and supporting a large network infrastructure. Additional years of experience may be considered in lieu of degree, * Experience with the following: Linux and Windows Server deployment and administration; Active Directory and Group Policy; DNS; Python, BASH, Powershell, or similar; Ansible (Tower), Puppet, Chef, Terraform, Containerization, Jenkins, or similar; and deploying VMs within VMWare vSphere
 * Experience with the following a plus: Nautobot, RHEL Satellite, InfoBlox DDI, RedHat Linux 8
 * Working knowledge with Routers, Switches, Firewalls, and Virtual Private Network devices
 * Understanding of TCP/IP in regards to routing and subnetting
 * Windows Server / Active Directory

Required Certifications:

 * IAT Level II required (Sec + and OS Certification). Six month waiver authorized to obtain OS Cert

## Description

SAIC is looking for a Systems Engineer to serve as a Senior Systems Administrator with experience in US Navy IT networks to support the sustained operation and maintenance of a newly deployed US Navy enterprise transport network, ensuring 24/7/365 availability and reliability. The position will support end-to-end network, system, and element visibility; facilitate rapid operations, administration, maintenance, and provisioning to maintaining the operational integrity of a mission-critical network, requiring both technical expertise and a commitment to excellence in service delivery. This is shift work covering 24/7 operations.

Work will be performed at the Navy customer's site in Suffolk, VA.

Specific Duties Include:

 * Provide Tier 2 level engineering operations support to quickly identify, triage, and address outages, analyzing symptoms and potential root causes to implement effective resolutions or escalate to Tier 3 support as required
 * Utilize advanced monitoring tools and processes to oversee network infrastructure, monitor the performance and availability of managed services and systems across multiple exchange points, and ensure optimal performance
 * Perform day to day maintenance, fixes, configuration corrections, software and hardware updates, and deployments
 * Adhere to system and operational reporting obligations
 * Operate and maintain the privileged access solutions
 * Maintain continuous verification of failover processes and disaster recovery procedures
 * Operate and maintain hardware upgrade process and procedures
 * Update and maintain any software builds applicable to deployed equipment
 * Operate and maintain asset management processes and procedures
 * Operate and maintain configuration management
 * Enact change management for the solution
 * Operate and maintain existing incident management processes
 * Keep firmware, software updates and patches up to date for equipment, * Certifications are considered a plus: CompTia Linux+, RedHat Linux, Microsoft Certified: Windows Server Hybrid Administrator Associate