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

About FlexTecs

FlexTecs is a technology-driven organization focused on reliability, security, and continuous improvement. We value precision, accountability, and proactive problem-solving. Our technology team supports critical business operations through secure, resilient, and well-managed infrastructure platforms.

If you enjoy working in a structured environment where your contributions directly impact operational excellence, system availability, and organizational success, this is the place for you.

Why Join Us?

• Work on business-critical infrastructure that directly supports company operations and customer success
• Participate in cloud modernization and infrastructure improvement initiatives
• Join a culture that values accountability, security, and operational excellence
• Work with modern technologies including VMware, Microsoft Azure, Microsoft 365, Entra ID, Veeam, SQL Server, and enterprise storage platforms
• Gain exposure to security, compliance, disaster recovery, and business continuity initiatives
• Opportunities for professional development, technical training, and industry certifications
• Autonomy and trust to make meaningful contributions to IT operations and infrastructure strategy

Position Summary

We are seeking a hands-on Systems Administrator who will play a key role in operating, securing, and modernizing FlexTecs' infrastructure platforms. This position supports our hybrid Microsoft and VMware environment and is responsible for maintaining secure, reliable, and well-documented systems.

Key Responsibilities

Infrastructure Administration

• 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

Security & Compliance

• Implement and maintain secure system configurations and infrastructure best practices
• Support vulnerability remediation and security hardening initiatives
• Participate in patch management and security update processes
• Maintain privileged access controls and least-privilege security principles
• Assist with audit readiness activities, evidence collection, and compliance initiatives
• Support cybersecurity projects and infrastructure security improvements

Backup, Disaster Recovery & Business Continuity

• Administer and monitor Veeam Backup & Replication environments
• Perform regular backup validation and recovery testing
• Participate in disaster recovery exercises and infrastructure resiliency initiatives
• Maintain backup, recovery, and business continuity documentation
• Ensure business-critical systems meet recovery objectives

Network & Infrastructure Support

• Maintain firewall rules, VPN configurations, and secure remote access solutions
• Assist with network troubleshooting and connectivity issues
• Support datacenter and infrastructure operations as needed
• Collaborate with vendors and technology partners to resolve escalated issues

Documentation & Operational Excellence

• Maintain accurate system documentation, network diagrams, standards, and procedures
• Participate in change management and operational review processes
• Track infrastructure assets and technology lifecycle activities
• Identify opportunities for automation and process improvement
• Contribute to the development of operational standards and best practices

End-User Support & Collaboration

• Provide Tier 2 and Tier 3 support for escalated technical issues
• Collaborate with business stakeholders to understand and support operational needs
• Train and mentor junior technical staff when appropriate
• Participate in after-hours support and on-call rotation as required

Requirements

Required 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

Preferred Qualifications

• Experience with Veeam Backup & Replication
• Experience with Microsoft Azure services
• Experience with PowerShell scripting and automation
• Experience with cybersecurity, compliance, or audit-related initiatives
• Experience working in a hybrid cloud environment
• Familiarity with SOC 2, security frameworks, or customer audit requirements

Preferred Certifications

• VMware Certified Professional (VCP)
• Cisco CCNA or equivalent certification