Senior Network and Computer Systems Administrator

IronMountain Solutions • Arlington, TX

2d • Onsite

About The Position

IronMountain Solutions, Inc. is seeking a Senior Network and Computer Systems Administrator to support DHS CISA’s CI-ISE and HSIN-CI platform environments. You will be responsible for supporting systems architecture, and cloud infrastructure integration. This position is not funded and is contingent upon contract award.

Requirements

• Expert-level understanding of systems architecture, network design, and hybrid cloud implementations.
• Proven ability to execute cloud infrastructure and platform integration within secure federal environments.
• Deep knowledge of federal security and compliance frameworks (e.g., FedRAMP, NIST).
• Strong capability in cross-platform integration and infrastructure performance optimization.
• Minimum of eight (8) years of systems engineering or network administration experience.
• Minimum of three (3) years of experience supporting cloud or hybrid infrastructure environments.
• Bachelor’s degree in Systems Engineering, Information Technology, Computer Science, or a related field.
• Must be able to obtain and maintain a DHS Suitability / Public Trust or Entry on Duty (EOD) approval.
• Per federal requirements, only U.S. citizens are eligible for this level of clearance.

Nice To Haves

• Industry-recognized certification (e.g., AWS, Azure, Security+, or CISSP) is highly preferred.

Responsibilities

• Architect, design, and manage complex systems and network infrastructures for the CI-ISE and HSIN collaboration platforms.
• Lead cloud infrastructure provisioning, hybrid environment management, and platform integration to ensure high system availability and uptime.
• Ensure all infrastructure components strictly adhere to federal security and compliance frameworks, including FedRAMP, NIST guidelines, and DHS 4300A policies.
• Lead cross-platform integration efforts, ensuring secure data flow between HSIN-CI, HSIN-Cyber, and HSIN-ES environments.
• Perform ongoing infrastructure performance optimization, monitoring network health, and resolving high-priority system incidents within stringent PWS timelines (e.g., within 24 hours).
• Collaborate with software developers and web administrators to deploy technical upgrades and maintain data accuracy, structure, and accessibility.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior