Rizwan

Sr. Network Engiineer

Telenor Group • Full time

Jul 2017 - Present • 9 yrs

Troubleshoot and resolve layer 2 network issues, including VLAN configurations and QinQ tunneling, ensuring minimal downtime and optimal network performance.  Configure and maintain Cisco layer 2 and 3 switches, utilizing MSTP for redundancy, VTP for VLAN management, and static routing for efficient data routing.  Successfully deploy layer 2 circuits, including QinQ setups, to establish reliable communication channels for data transmission.  Monitor network health and performance, proactively identifying and addressing potential issues related to the mentioned protocols to guarantee network reliability and stability. Led the shift, providing guidance and supervision to the team while ensuring smooth network operations and efficient task execution.  Collaborated with the sales team to assess client needs and designed tailored network solutions to meet their specific requirements, facilitating business expansion.  Developed custom monitoring tools integrated with SNMP for comprehensive network performance analysis, enabling proactive issue resolution and network optimization.  Managed Linux servers, executed major network changes, and oversaw L3 circuits, MPLS, and OSPF configurations to ensure robust, scalable, and reliable network infrastructure.  Managed and maintained the company's network infrastructure, ensuring high availability and security.  Troubleshot and resolved user-related network issues, providing technical support and assistance.  Configured and monitored the ISA server and Endian Firewall to safeguard network integrity.  Administered the Active Directory (AD) server for user account management and permissions.  Maintained and optimized the FTP server, facilitating data transfer and file-sharing capabilities.  Collaborated with colleagues to ensure the functionality of the ENPS Network, enhancing communication and workflow efficiency.