We are seeking a Windows/Linux/Unix Administrator & Application Support Specialist with 3+ years of experience to manage and support our IT infrastructure and applications. The ideal candidate will have strong technical expertise in Windows systems administration, Linux/Unix environments, and experience in providing application support to ensure the smooth operation of critical IT services.

Requirements:

• 3+ years of experience in Windows system administration and application support.
• Fluent English
• Proficiency in Windows Server operating systems (2016, 2019, 2022).
• Strong understanding of Active Directory, DNS, DHCP, and group policy management.
• Experience with installing, configuring, and maintaining Linux/Unix systems (Red Hat, CentOS, Ubuntu).
• Proficiency in shell scripting and automation using Bash or similar tools.
• Familiarity with virtualization technologies such as VMware or Hyper-V.
• Knowledge of network protocols and concepts.
• Ability to script and automate tasks using PowerShell.
• Experience with ITSM tools like ServiceNow or JIRA for ticket management.
• Certifications such as Microsoft Certified: MCSA or MCSE are desired.
• Strong analytical, troubleshooting, and communication skills.

Responsibilities

• Install, configure, and maintain Windows servers (2016/2019/2022) to ensure their performance, security, and availability.
• Manage Active Directory environments, including user accounts, groups, permissions, and group policies.
• Perform regular system updates, patches, and backups for Windows environments.
• Install, configure, and maintain Linux/Unix systems (Red Hat, CentOS, Ubuntu) to ensure performance, security, and availability.
• Manage user accounts, permissions, and security for Linux/Unix systems, and automate tasks using shell scripting.
• Provide 2nd and 3rd-level application support for business-critical applications, resolving software-related issues.
• Collaborate with development teams to manage application deployments, patches, and upgrades.
• Use monitoring tools to track system and application health, responding to alerts promptly and ensuring high availability.
• Assist users with resolving Windows OS, network, and application-related issues.
• Participate in disaster recovery planning, testing, and system maintenance.
• Document issues, resolutions, and develop standard operating procedures (SOPs) for IT and application support tasks.
• Ensure security policies are followed, including antivirus, firewalls, and other security tools.

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