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# Senior Systems Infrastructure Technologist

- **Company:** Science Applications International Corporation
- **Location:** Quantico, VA, United States
- **Experience:** Expert
- **Salary:** $200,001.0 - $240,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Amazon Web Services, Apple Mac Systems, Architectural Patterns, Microsoft Azure, Cloud Computing, Cyber Security, Computer Engineering, Continuous Integration, Data Centers, Linux, Domain Name System (DNS), IPv4, IPv6, Storage Area Network (SAN), Python (Programming Language), Windows PowerShell, Red Hat Enterprise Linux, Ansible, Software Testing Automation Framework, Systems Integration, Virtualization Technology, Software Vulnerability Management, Data Logging, Google Cloud, HybridCloud, Firewalls (Computer Science), Storage Technologies, Information Technology, Terraform, Oracle Cloud Infrastructure, Vmware
- **Published:** October 26, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9263108/senior-systems-infrastructure-technologist

## About the Role

It is required that the Senior Systems Infrastructure Technologist have the following qualifications:

 * Bachelor's degree in computer science, Information Technology, Computer Information Systems, Computer Engineering, Network Engineering, or related.
 * Fourteen (14) years or more of experience, Work experience in the areas detailed in the Description of Duties of more than eighteen (18) or more years in lieu of a degree may be considered.
 * Minimum 10 years of experience in enterprise IT architecture, preferably within federal or DoD environments.
 * Must have an active Top Secret clearance with the ability to obtain a TS/SCI after starting.
 * Strong understanding of DoD security postures, including NIST, RMF, and STIG compliance
 * Familiarity with automation tools and frameworks (e.g., Ansible, Terraform, CI/CD pipelines)
 * Excellent communication and stakeholder engagement skills, with the ability to translate technical concepts into government strategic outcomes.
 * Experience in creating architectural models demonstrating how products, operations and systems interoperate within the organization
 * Experience supporting or leading ATO/IATO processes from an architectural perspective.
 * Deep knowledge of Linux, Windows, macOS, and virtualization tools like VMware.
 * Experience managing hybrid cloud environments, firewalls, DNS, and storage area networks (SAN/NAS).

Certifications:

 * Must have current IAT Level III certification: i.e., SecurityX/CASP+, CISSP, GCED, GCI, CCNP Security or equivalent.

Desired Certifications, Experience and/or Skills:

 * Master's and twelve (12) years or more of experience; PhD or JD and nine (9) years or more of experience.
 * Project Management Professional (PMP) Certification.
 * Cloud certifications: Amazon Web Services (AWS), Microsoft Azure, Google Cloud, Oracle Cloud Infrastructure (OCI).
 * Red Hat Certified Engineer (RHCE).
 * ITIL 4/5 Foundation
 * VMware Certified Professional - Data Center Virtualization (VCP-DCV).
 * Experience supporting or leading the transitioning enterprises from IPv4 to IPv6.
 * Experience supporting or leading Dell storage technologies.
 * Proficiency in languages such as Python, PowerShell, and Infrastructure as Code (IaC) frameworks.

## Description

The Senior Systems Infrastructure Technologist will serve as a primary technical authority for enterprise architecture and solution alignment. The primary requirement for this billet is to improve our ability to provide a holistic view and deeper level of technical understanding of how the different services integrate to provide mission enabling success for our DCSA customers.

Additional Duties:

 * Leadership & Strategy: Lead major infrastructure projects, set technical standards, and mentor junior IT staff.
 * Enterprise Architecture and Engineering: Develop and maintain technically sound infrastructure designs and ensure solutions are scalable, resilient, supportable, and aligned to enterprise requirements.
 * Modernization and Lifecycle Management: Lead infrastructure modernization, migrations, technology refreshes, capacity planning, and lifecycle management while minimizing operational impact.
 * Technical Integration: Coordinate dependencies across Windows, Linux, virtualization, storage, network, identity, cybersecurity, and enterprise management platforms.
 * Security and Compliance: Incorporate DISA STIGs, vulnerability remediation, configuration baselines, RMF/ATO requirements, logging, monitoring, and security controls into infrastructure engineering activities and shifting those capabilities left if the lifecycle management process.