What are some of the functional networks (LAN, WLAN, WAN) you have designed and deployed?

In my previous role as a Network Engineer, I have designed and deployed various functional networks including LAN, WLAN, and WAN. For LAN, I designed and implemented a high-speed Ethernet network infrastructure with switches and routers to connect multiple devices within a local area. For WLAN, I set up wireless access points and ensured seamless connectivity across different locations. As for WAN, I worked on establishing secure connections between different branch offices using VPN technology. I also integrated firewall solutions to enhance network security. Overall, my experience with these functional networks has allowed me to gain a deep understanding of network infrastructure and protocols.

As a Senior Network Engineer, I have extensive hands-on experience designing and deploying LAN, WLAN, and WAN networks. For LAN, I designed and implemented a redundant network infrastructure using Cisco switches to ensure high availability and performance. I also utilized VLANs to segment network traffic and implemented Quality of Service (QoS) policies for optimized application performance. In terms of WLAN, I designed and deployed a secure wireless network with centralized authentication using RADIUS servers. I implemented encryption protocols like WPA2 and regularly conducted site surveys to optimize coverage and signal strength. For WAN, I established and configured secure VPN connections between branch offices, utilizing protocols such as IPSec and SSL. I also deployed firewall solutions to enforce strict access control and protect against external threats. Throughout these projects, I created detailed network diagrams and documentation to ensure smooth implementation and effective troubleshooting. My experience with network security includes implementing intrusion detection and prevention systems and regularly performing vulnerability assessments. Overall, my practical experience with these functional networks demonstrates my ability to implement, administer, troubleshoot, and secure network infrastructure.

As a Senior Network Engineer, I have a proven track record of designing and deploying robust LAN, WLAN, and WAN networks that meet organizational goals. In my previous role, I architected a highly available and scalable LAN infrastructure by implementing redundant core switches, access switches with StackWise technology, and link aggregation for increased bandwidth capacity. I leveraged protocols such as Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) for network redundancy and faster convergence. For WLAN, I conducted a comprehensive site survey using predictive modeling and physical measurements to ensure optimal coverage and minimized interference. I also implemented advanced features like load balancing and band steering for seamless client connectivity. In the realm of WAN, I successfully deployed SD-WAN technology to optimize network performance and reduce costs by intelligently routing traffic based on application requirements. I have hands-on experience with MPLS and BGP for secure and efficient connectivity between different branch offices. Additionally, I have extensive knowledge of network security best practices, including implementing next-generation firewalls, VPNs, and secure authentication methods like 802.1X. I have conducted network audits and penetration testing to identify vulnerabilities and ensure compliance with industry standards. My proficiency in network diagnostic and monitoring tools such as SolarWinds helps me proactively identify and resolve network issues. Moreover, I excel in creating accurate network diagrams and documentation using tools like Visio, providing clear visual representation of network architecture. My deep understanding of application transport protocols like TCP/IP, as well as experience with hardware and software selection, further enhance my ability to design and deploy efficient network solutions. With my strong LAN and WAN experience, I can confidently design scalable and secure networks that meet the diverse needs of the organization.