T infrastructure roles focus on building, maintaining, securing, and optimizing an organization’s technology setting (servers, networks, cloud, data centers, endpoints, etc.). Below is a structured breakdown of key roles and their responsibilities.

1) IT Infrastructure Manager / Head of Infrastructure

Responsibilities:
- Define infrastructure strategy aligned with business goals
- Oversee servers, networks, cloud, storage, and security
- Manage budget, vendors, and contracts
- Ensure high availability, disaster recovery (DR), and business continuity
- Lead infrastructure team and performance management
- Approve architecture and technology standards

2) Systems Administrator (SysAdmin)

Responsibilities:
- Install, configure, and maintain servers (Windows/Linux)
- Manage Active Directory, user accounts, permissions
- Monitor system performance and uptime
- Perform patching, upgrades, and backups
- Troubleshoot hardware and OS issues
- Maintain virtualization platforms (e.g., VMware vSphere, Microsoft Hyper-V)

3) Network Administrator / Network Engineer

Responsibilities:




- Configure and maintain LAN/WAN networks
- Manage routers, switches, firewalls
- Monitor network performance and security
- Implement VPNs and network segmentation
- Troubleshoot connectivity issues
- Work with vendors like Cisco Systems and Juniper Networks

4) Cloud Engineer / Cloud Architect

Responsibilities:
- Design and deploy cloud infrastructure
- Manage cloud platforms such as Amazon Web Services, Microsoft Azure, or Google Cloud
- Implement Infrastructure as Code (IaC)
- Optimize cloud costs and performance
- Ensure cloud security and compliance
- Plan hybrid or multi-cloud strategies

5) IT Support Specialist / Help Desk Technician

Responsibilities:
- Provide first-line technical support
- Troubleshoot hardware, software, and connectivity issues
- Install and configure end-user devices
- Manage ticketing systems

6) DevOps Engineer

Responsibilities:
- Automate infrastructure dep

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