System Administrator

Roles and Responsibilities

• Creating users, security groups, computer accounts, and GPO policies in AD
• Creating email accounts in O365
• Troubleshoot O365 related issues
• Install, configure, and maintain physical and virtual servers (Windows/Linux).
• Perform routine maintenance, software updates, and security patches.
• Manage Active Directory, DNS, DHCP, and other core IT services.
• Maintain LAN/WAN infrastructure including routers, switches, and firewalls.
• Monitor network performance, identify issues, and implement solutions.
• Ensure secure network access for local and remote users.
• Implement and maintain system and network security measures (firewalls, antivirus, encryption).
• Enforce policies for IT operations and data protection.
• Monitor systems for unauthorized access and suspicious activities.
• Develop and manage backup procedures.
• Test and document disaster recovery processes.
• Ensure data availability and integrity.
• Provide Level 2/3 support to resolve hardware, software, and network issues.
• Liaise with vendors and support providers as needed.
• Document solutions and maintain a knowledge base for internal IT use.
• Develop scripts (PowerShell, Bash, Python) for automation of repetitive tasks.
• Participate in infrastructure as code (IaC) deployments (e.g., using Ansible, Terraform).
• Perform hardware and software installations, configurations and updates as needed.
• Resolve technical issues in a timely manner using available resources within the company.
• Conduct remote troubleshooting
• Thorough understanding of TCP/IP and networking concepts

• Knowledge on DNS, DHCP, IPv4, NTP, AD, etc.

Requirements

Skills and Expertise

• Excellent problem-solving skills and Documentation Skills.
• Familiarity with Information Technology Infrastructure Library (ITIL) methodologies.
• Good communication skills (Verbal & Written) and ability towork within a 24x7 support environment.
• Proven experience(35+ years) as a System Administrator, Network Administrator, or similar.
• Strong knowledge of Windows Server, Linux(Ubuntu, CentOS) and network protocols.
• Experience with cloud platforms (AWS, Azure,GCP).
• Familiarity with DevOps tools and CI/CDpipelines.