Dhanush R.

Background

About Dhanush R.

Senior Network Engineer with over 8 years in LAN/WAN, network security, and cloud architecture. • Experienced in firewalls Palo Alto, Checkpoint, and Cisco ASA firewalls. • Skilled in designing, implementing, and troubleshooting complex network infrastructures for large-scale enterprises. Proficient in security tools like Palo Alto, Checkpoint, and Cisco ASA firewalls. • Involved in implementation of Palo Alto PA-5220, PA-5430, PA-3250, firewalls inn standalone, Vwire, active/passive & active/active modes. • Experience in Fortinet (FortiGate) firewalls 1800F, 4800F, 6300F, this includes the whole UTM control, web filter, IPS, DoS, DDoS, etc. • Configuration and administration of firewalls, which includes Checkpoint R 77.30, R 75.30, R81, Juniper and Cisco ASA 5585, 5540 firewalls. • Designing and deploying dynamically scalable, highly available, fault tolerant and reliable applications on AWS. • In-depth knowledge and experience in LAN and WAN technologies including MPLS, SD-WAN, DIA, point to point (Dark Fiber). • Extensive hand on experience with complex routed LAN networks, Cisco routers like ISR, 1101, 1109, ASR 1006, 1002, 9922 and Switches are 3750, 6503E, 6509-NEB-A, 8500, 9300. • Worked on Cisco Nexus 7010, 7018, 5548, 9800, 9300 series family of switches whose hardware is based on Cisco ACI. • Deploying monitoring tools such as SolarWinds, PRTG, and Nagios. Adept at managing IT operations with 24/7 network monitoring, ensuring compliance with SLAs and operational excellence. • Strong experience in incident management, network resiliency, and security best practices to protect against vulnerabilities and threats. • In-depth experience in configuring and optimizing firewall policies, VPN solutions, and network access controls to secure both on-premises and cloud environments, with a focus on AWS, Microsoft Azure, and GCP. • Adept at utilizing advanced troubleshooting methodologies and tools like Wireshark and Splunk to identify and resolve connectivity and security issues, minimizing downtime and maintaining business continuity. • Strong background in network protocols (e.g, TCP/IP, BGP, OSPF, EIGRP) and high-availability solutions that support data center resiliency and redundancy.