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Senior System Administrator

AppExert • United State
Remote
This Job is No Longer Active This position is no longer accepting applications

We are seeking an experienced System Administrator to manage, maintain, and optimize enterprise IT infrastructure. The ideal candidate will ensure system stability, security, performance, and availability across servers, networks, and cloud environments. This role requires strong troubleshooting skills, proactive monitoring, and the ability to work independently in a fast-paced environment.

Key Highlights
Manage enterprise IT infrastructure
Ensure system stability and security
Troubleshoot and resolve hardware, software, and network-related issues
Key Responsibilities
Install, configure, and maintain Windows and/or Linux servers
Monitor system performance and maintain high availability across infrastructure environments
Manage Active Directory, DNS, DHCP, and Group Policies
Perform system upgrades, patch management, and routine maintenance activities
Administer and monitor cloud infrastructure (Azure / AWS / GCP as applicable)
Ensure effective backup, disaster recovery, and business continuity processes
Implement and maintain security measures, monitor security alerts, and remediate vulnerabilities
Manage firewall configurations, antivirus solutions, and endpoint protection systems
Diagnose and resolve hardware, software, and network-related issues
Provide L2/L3 support for infrastructure incidents and coordinate with cross-functional teams for escalations
Maintain accurate documentation of system configurations, procedures, and processes
Automate routine administrative tasks using scripting tools such as PowerShell or Bash
Technical Skills Required
Windows Server Linux administration Active Directory DNS DHCP Virtualization technologies (VMware / Hyper-V) Networking fundamentals (TCP/IP, VPN, Firewall) Cloud platforms (Azure / AWS)
Benefits & Perks
Flexible work arrangement
Paid time off
Health, wellness, and lifestyle benefits
Virtual team building activities and social events

Job Description

About AppExert

At AppExert, we enable top remote developers to work with interesting tech companies worldwide. We provide 100% remote full-time employment with options to work from one of our remote pods in Montreal, Toronto, Chennai, and Bangalore. If you're passionate about working with interesting companies and make a significant impact, AppExert is the ideal platform.

We’re humble and proud building the happiest remote developers community in India, enabling developers like you to follow their passions while staying closely connected to what genuinely matters to them. The dilemma of choosing between a gratifying career and a meaningful connection to your roots is no longer a concern.

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