Senior Systems Administrator

Overview

We are looking for an experienced network administrator to manage and support our corporate LAN and voice networks. In this role, you will troubleshoot network issues, monitor performance, and collaborate with global teams to ensure high network uptime. You will also create documentation and work with various monitoring tools to maintain and improve our network infrastructure.

Key Responsibilities

• Manage corporate LAN switching using VLAN, VTP, trunking, and access security technologies.
• Troubleshoot and resolve day-to-day network issues, including Layer-2 and Layer-3 connectivity problems.
• Analyze, configure, and troubleshoot large Cisco voice networks.
• Monitor and manage the network to maximize uptime.
• Create and implement documentation and procedures to support service operations.
• Track network and telecom infrastructure and provide recommendations for further analysis.
• Escalate, track, and troubleshoot issues with service providers or vendors.
• Collaborate with global teams on network technologies to ensure high production uptime.
• Maintain and manage key monitoring systems such as NMIS, Live Action, and Cisco Prime Infrastructure.
• Assist with data analytics and report creation related to network performance.
• Perform daily health checks and implement network improvements.
• Own support issues through to closure within defined service level agreements (SLAs).
• Contribute to the knowledge base and propose ideas for knowledge management.
• Leverage knowledge and best practices from global peers.

Requirements

• Minimum of 6 years of experience in systems or network administration.
• Technical expertise in routing, switching, security, and traffic optimization.
• Hands-on experience with SNMP, NetFlow protocols, and various network monitoring tools.
• Good knowledge of Cisco ISR and ASR platforms running IOS XE.
• Experience in alert monitoring, first-level troubleshooting, and ticket handling.
• Flexibility and willingness to learn new technologies aligned with company strategy and roadmap.
• Ability to learn quickly with minimal supervision and collaborate with multiple technical teams.
• Capability to manage multiple complex tasks concurrently under competing deadlines.
• Ability to follow strict policies and change-control procedures.