Senior System Administrator

Senior Infrastructure & Systems Administrator-(Medical Systems)

DUE TO THE NATURE OF THIS WORK, YOU MUST BE A US CITIZEN!

100% onsite in Washington, DC

Tier4 Group is seeking a Senior Infrastructure & Systems Administrator to support the U.S. Secret Service Occupational Health and Medical Programs. This role will maintain and secure enterprise IT infrastructure across cloud and on-premises environments.

Key Responsibilities

• Administer Windows and Linux server environments
• Support Azure and/or AWS cloud infrastructure
• Manage databases, storage, backup, and disaster recovery processes
• Maintain network infrastructure including routers, switches, and firewalls
• Support cybersecurity initiatives, access controls, and system hardening
• Troubleshoot enterprise systems and provide technical support
• Develop technical documentation and recommend infrastructure improvements

Required Qualifications

• Bachelor's degree in IT, Computer Science, Cybersecurity, or related field
• 8+ years of IT infrastructure experience
• 5+ years of experience with:

Server administration (Windows/Linux)

Cloud platforms (Azure and/or AWS)

Database administration

Enterprise storage, backup, and recovery

Network administration and cybersecurity

• Strong troubleshooting and infrastructure support skills

Preferred Certifications

• Azure Administrator
• AWS SysOps Administrator or Solutions Architect
• CCNA/CCNP
• Security+
• CISSP

Interested in learning more? APPLY TODAY!!