INFRASTRUCTURE ANALYST

Description

Job Summary: Responsible for the operation, maintenance, and evolution of the IT infrastructure, ensuring connectivity, security, and service stability. Key Highlights: 1. Administration of Windows and Linux servers, Active Directory, and network. 2. Implementation and management of virtualization and information security. 3. Level 2/3 operational support and technological project oversight. Responsible for the operation, maintenance, and evolution of the company's IT infrastructure, ensuring connectivity, security, stability, and high availability of services. Will directly administer Windows and Linux servers, Active Directory, wired and wireless network infrastructure, firewalls, internet links, IP telephony, and other critical resources required for operations. Administer computing environments by deploying and documenting routines, projects, and controlling service levels for operating systems, databases, and networks. Server Infrastructure Administer Windows Server (AD, DNS, DHCP, GPO, File Server, Print Server). Administer Linux servers (services such as Apache, FTP, SSH). Manage access and security policies on servers and domains. Perform OS updates, patches, and preventive maintenance. Implement and maintain virtualization (VMware, Hyper\-V). Configure and monitor backup and restore processes, ensuring data integrity and availability. Data Networks Plan, configure, and monitor LAN and WLAN networks, including VLANs, routing, switching, and corporate Wi\-Fi. Configure and administer firewalls (SonicWall or equivalents). Implement and manage VPNs (site\-to\-site and client\-to\-site) for secure remote access. Monitor network and server performance using tools (Zabbix, Nagios, Grafana). Document network topologies, configurations, and changes. Telephony and Connectivity Configure and manage IP telephony (VoIP) systems (Asterisk, Isabel, FreePBX, 3CX, Elastix). Administer extensions, IVRs, SIP trunks, and carrier integrations. Monitor and manage internet links and redundancy/failover solutions. Information Security Apply security best practices on servers and network devices. Implement firewall policies, access controls, network usage policies, file sharing, and auditing. Monitor potential security incidents and act to mitigate them. Support the development of IT policies and compliance with standards (LGPD, ISO 27001, etc.). Operational Support Provide level 2/3 support for critical infrastructure-related incidents. Support the Service Desk team on tickets involving networks and servers. Oversee technological implementation and upgrade projects. Collaborate with vendors and service providers to reduce costs and improve the environment. Conduct analysis of IT equipment, components, and accessories requiring specification or configuration. Provide end-user support and training to ensure correct hardware/system usage, evaluate achievement of expected outcomes, and propose improvements for developing new solutions when necessary. Train implementation and support teams on proper use of basic software to ensure they are adequately prepared to perform their duties. Perform, under occasional supervision, activities related to hardware/software specification, planning, installation assistance, and installation documentation, verifying alignment with vendor specifications to ensure appropriate utilization of available corporate resources. Perform other duties inherent to the position or as assigned by the immediate supervisor, provided the employee is qualified and such duties align with their knowledge and experience.