Hybrid Cloud & Security Systems Administrator

FlexTecs; Atlanta (GA); Hybrid; USD 70,000 - 100,000; Full time

Job summary

FlexTecs is seeking a hands-on Systems Administrator to operate, secure, and modernize our infrastructure platforms in a hybrid Microsoft/VMware environment. You will maintain secure, reliable systems and contribute to documentation and operational excellence.

The role emphasizes server lifecycle, Active Directory, 365 services, Entra ID, backup/recovery, and on-call readiness to support business-critical operations.

Qualifications

• 3+ years of experience administering Windows Server environments.
• 3+ years of experience supporting VMware infrastructure.
• Strong understanding of Active Directory, Group Policy, DNS, and DHCP.
• Experience with Microsoft 365 administration.
• Experience with Microsoft Entra ID (Azure AD).
• Experience administering backup and recovery solutions.
• Strong troubleshooting and problem-solving skills.
• Experience creating and maintaining technical documentation.
• Strong communication and organizational skills.
• Ability to manage multiple priorities in a fast-paced environment.

Responsibilities

• Manage and maintain VMware hosts, virtual machines, Windows Server environments, and supporting infrastructure.
• Administer Active Directory, Group Policy, DNS, DHCP, and related services.
• Monitor system performance, capacity, availability, and reliability across infrastructure platforms.
• Support server lifecycle management including deployment, upgrades, patching, and retirement.
• Troubleshoot infrastructure, network, and application-related issues.
• Support Microsoft 365 services including Exchange Online, Teams, SharePoint, and OneDrive.
• Administer Microsoft Entra ID (Azure AD) including user lifecycle management, Conditional Access, and identity governance.
• Support hybrid identity and cloud integration initiatives.
• Assist with cloud infrastructure and Microsoft Azure administration.
• Maintain privileged access controls and least-privilege security principles.
• Participate in patch management and security update processes.
• Maintain backup, recovery, and business continuity documentation.
• Provide Tier 2 and Tier 3 end-user support and collaborate with stakeholders.

Skills

Windows Server

VMware

Active Directory

Group Policy

DNS

DHCP

Microsoft 365

Azure AD

Backup & Recovery

Troubleshooting

Documentation

Communication

PowerShell

Automation

Hybrid Cloud

Tools

VMware

PowerShell

Veeam Backup & Replication

Azure

Job description

FlexTecs is seeking a hands-on Systems Administrator to operate, secure, and modernize our infrastructure platforms in a hybrid Microsoft/VMware environment. You will maintain secure, reliable systems and contribute to documentation and operational excellence.

The role emphasizes server lifecycle, Active Directory, 365 services, Entra ID, backup/recovery, and on-call readiness to support business-critical operations.