Senior Systems Infrastructure Technologist

Location: Quantico, VA, US | Schedule: Full‑Time, Day Shift | Travel: Yes, 10% | Clearance: Active Top Secret required, must be able to obtain TS/SCI | Remote Work: On‑site only

About the role

Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities for the Defense Counterintelligence and Security Agency (DCSA). The Air Force, Space & Intel Business Group (AFSI) of SAIC is seeking a Senior Systems Infrastructure Technologist to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation’s information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000 facilities involved in classified work throughout the DoD and 31 Federal agencies. Specifically, on the DCSA One IT program, SAIC will provide an enterprise IT solution that delivers highly secure and adaptable IT infrastructure, provide customer support, and cutting‑edge technologies that support operations and advance the DCSA mission under a single IT environment (i.e., One IT).

SAIC has an opening for a Senior Systems Infrastructure Technologist billet in Quantico, VA. SAIC is recognized as an IT leader in the military, intelligence and security spaces. This exciting opportunity supports the Defense Counterintelligence and Security Agency (DCSA) unique mission needs. We are seeking an individual who will be fully committed to the success of DCSA programs and to bringing the best innovation, implementation and best practices to the position.

Responsibilities

• 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 shift those capabilities left in the lifecycle management process.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Computer Information Systems, Computer Engineering, Network Engineering, or related field. Fourteen (14) years or more of experience; work experience in the areas detailed in the Description of Duties of eighteen (18) or more years may be considered in lieu of a degree.
• Minimum 10 years of experience in enterprise IT architecture, preferably within federal or DoD environments.
• Active Top Secret clearance with the ability to obtain 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 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