Network Administrator – L3

2 hours ago

Thiruvananthapuram Kerala, India UST Full time

The L3 Network Administrator will be responsible for the design implementation and advanced support of complex network infrastructures The role involves managing routing switching firewalls and load balancers across enterprise and carrier-grade environments The candidate should have strong expertise in Juniper Cisco and F5 technologies with proven experience in securing and optimizing network performance for PCI PII-compliant environments Key Responsibilities Manage configure and troubleshoot routing and switching infrastructure Juniper Cisco Implement and maintain BGP routing and other advanced network protocols Administer and secure Juniper SRX firewalls including rule creation policy management and threat mitigation Install configure and maintain F5 load balancers to ensure high availability and performance Design document and implement LAN WAN network architectures and segmentation strategies Support network capacity planning optimization and redundancy initiatives Develop and enforce firewall and network policies to meet PCI PII compliance standards Troubleshoot complex connectivity performance and security issues across multi-vendor environments Collaborate with infrastructure and security teams to deliver scalable and secure network solutions Maintain up-to-date network documentation topology diagrams and configuration records Key Requirements 10 years of hands-on experience in network administration and engineering routers switches firewalls Strong working knowledge of Juniper and Cisco network devices Proven experience with routing protocols especially BGP Expertise in Juniper SRX firewalls - configuration rule management and troubleshooting Experience with F5 load balancers LTM GTM preferred Deep understanding of WAN LAN technologies and network segmentation principles Experience designing and maintaining carrier-grade or large enterprise networks Familiarity with PCI PII compliance and firewall policy design Strong communication and documentation skills for cross-functional collaboration Preferred Skills Tools Networking Platforms Juniper Cisco Arista Security Juniper SRX Firewalls PCI PII Policy Implementation Load Balancing F5 LTM GTM Protocols BGP OSPF VLAN VPN Tools Wireshark SolarWinds Network Monitoring Systems Skills Firewalls Wireless Networking Routing And Switching About Company UST is a global digital transformation solutions provider For more than 20 years UST has worked side by side with the world s best companies to make a real impact through transformation Powered by technology inspired by people and led by purpose UST partners with their clients from design to operation With deep domain expertise and a future-proof philosophy UST embeds innovation and agility into their clients organizations With over 30 000 employees in 30 countries UST builds for boundless impact touching billions of lives in the process

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