Senior System Administrator

Tier4 Group; Washington (District of Columbia); On-site; USD 120,000 - 170,000; Full time

Job summary

Tier4 Group is seeking a Senior Infrastructure & Systems Administrator to support the U.S. Secret Service Occupational Health and Medical Programs.

This role maintains and secures enterprise IT across cloud and on-premises environments, 100% onsite in Washington, DC, and requires US citizenship. You will administer Windows and Linux servers, manage Azure/AWS, databases, storage, backup, disaster recovery, and network devices.

Qualifications

• Bachelor's degree in IT, CS, cybersecurity, or related field.
• 8+ years of IT infrastructure experience.
• 5+ years with cloud platforms (Azure and/or AWS), databases, storage, backup and recovery.
• Experience with network administration and cybersecurity.

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.

Skills

Cloud platforms

Database administration

Network administration

Cybersecurity

Troubleshooting

Education

Bachelor's degree in IT/CS/Cybersecurity or related field

Tools

Azure

AWS

Windows/Linux servers

Firewalls

Job description

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:

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

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