[Remote] System Administrator

Note: The job is a remote job and is open to candidates in USA. Encore Talent Solutions is a trusted professional services firm dedicated to helping organizations achieve their goals by providing exceptional talent solutions. We are seeking a Systems Administrator to support and maintain a large-scale enterprise infrastructure environment, ensuring the reliability, security, and performance of critical server systems while collaborating with various teams on maintenance and modernization initiatives.

Responsibilities

• Perform scheduled server maintenance, patching, and remediation activities during designated maintenance windows
• Execute operating system upgrade projects, including migrations from Windows Server 2016 to Windows Server 2022
• Administer and support a large-scale enterprise server environment consisting of 2,000+ servers
• Manage and maintain Windows Server infrastructure while supporting a smaller Red Hat Enterprise Linux (RHEL) environment
• Investigate, troubleshoot, and resolve server, operating system, and infrastructure-related incidents and service requests
• Deploy security patches and support vulnerability remediation efforts to maintain compliance with organizational security standards
• Collaborate with infrastructure and operations teams to plan, coordinate, and execute maintenance activities
• Utilize monitoring, security, and remote access technologies to support enterprise systems
• Document configurations, procedures, troubleshooting steps, and maintenance activities
• Participate in after-hours support and on-call rotation activities as required
• Support continuous improvement initiatives related to infrastructure performance, security, and operational efficiency

Skills

• 4+ years of Systems Administration, Infrastructure Support, or related experience
• Strong experience administering and supporting Windows Server environments
• Experience performing server patching, maintenance, upgrades, and remediation activities
• Proficiency with: Active Directory, Group Policy, DNS, DHCP, Windows Server administration
• Experience troubleshooting server, operating system, and enterprise infrastructure issues
• Familiarity with enterprise ticketing systems and incident management processes
• Understanding of security best practices, vulnerability management, and patch compliance
• Strong analytical, troubleshooting, and problem-solving skills
• Ability to work independently in a remote environment while effectively managing priorities and maintenance schedules
• Excellent communication and collaboration skills
• Experience supporting Red Hat Enterprise Linux (RHEL) environments
• Experience working in enterprise-scale server environments with thousands of managed systems
• Familiarity with Zscaler or similar security and remote access platforms
• Experience participating in infrastructure on-call rotations
• Experience with PowerShell scripting and automation
• Knowledge of infrastructure monitoring and systems management tools
• Exposure to cloud technologies and hybrid infrastructure environments

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