Systems Administrator

FlexTecs LLC

Atlanta (GA)

Hybrid

USD 75,000 - 110,000

Full time

3 days ago

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Job summary

FlexTecs LLC seeks a hands-on Systems Administrator to operate, secure, and modernize its hybrid infrastructure. You will maintain VMware hosts, Windows Server environments, and related services while collaborating with Infrastructure, Security, Development, and Business teams to ensure availability, security, and audit readiness.

The role covers Microsoft 365, Entra ID, patching, backup, DR planning, and on-call support, in a hybrid environment.

Qualifications

3+ years of experience administering Windows Server environments.

Responsibilities

Infrastructure Administration: Manage VMware hosts, VMs, Windows Server environments, and supporting infrastructure.

Skills

Windows Server

VMware

Active Directory

Group Policy

DNS

DHCP

Microsoft 365

Azure Entra ID / Azure AD

Backup & Recovery

Troubleshooting

Technical Documentation

Communication

Tools

Veeam Backup & Replication

Job description

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.

The Systems Administrator will work closely with Infrastructure, Security, Development, and Business teams to ensure systems remain available, scalable, secure, and audit-ready while supporting day-to-day operations and strategic IT initiatives.

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

Microsoft 365 & Cloud Administration

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