Job Description:We are seeking a highly experienced Network Subject Matter Expert with 12+ years of deep expertise in routing and switching, firewalls, and security compliance. The ideal candidate will bring hands-on experience with technologies such as Cisco, Palo Alto, Check Point, ForeScout, F5, Infoblox, A strong focus on patch management, firmware upgrades, vulnerability management, and regulatory compliance is essential.This is a strategic, high-impact role responsible for architecting, implementing, and securing robust network infrastructures across hybrid environments to ensure performance, scalability, and adherence to security standards.Key Responsibilities:Network Subject Matter ExpertManage routing and switching environments (Cisco or equivalent) with deep knowledge of BGP, OSPF, EIGRP, VLANs, STP, QoS, and multicast protocols.Configure and optimize F5 load balancers (LTM, GTM, iRules) for high availability and efficient traffic management.Administer Infoblox DNS, DHCP, and IPAM for seamless IP address management and name resolution services.Firewall, Security, and ComplianceDesign and maintain secure perimeter and internal network environments using Cisco ASA, Palo Alto, Check Point, and ForeScout firewalls.Enforce Zero Trust Architecture, micro-segmentation, and secure remote access via VPN solutions.Lead patch management, firmware updates, and hardening of network and security appliances.Conduct regular vulnerability scans, remediation activities, and ensure compliance with security frameworks like ISO 27001, NIST, CIS, and PCI-DSS.Collaborate with security teams on threat detection, incident response, and proactive risk mitigation.Performance Monitoring and TroubleshootingProactively monitor and tune network performance to meet SLAs and minimize latency and downtime.Resolve complex networking issues across LAN/WAN, cloud, and security appliances.Engage with vendors and cross-functional teams to maintain optimal performance and high availability.Automation and DocumentationLeverage tools like Ansible, Python, PowerShell, and Terraform to automate routine tasks and cloud network deployments.Maintain detailed documentation, including network topology diagrams, firewall configurations, compliance reports, and SOPs.Mentor junior engineers and support knowledge-sharing initiatives across IT teams.Qualifications & Experience:10+ years of experience in enterprise network engineering, cloud networking, and security.Expertise in routing and switching (Cisco, Juniper) and firewalls (Palo Alto, Cisco ASA, Check Point, ForeScout).Proven experience in cloud networking with AWS, Azure, or GCP—covering VPCs, NSGs, VPNs, subnets, and load balancing.Hands-on exposure to patch management, firmware upgrades, and vulnerability scanning/remediation.Proficient in F5 technologies (LTM, GTM, ASM) and automation using Python, Ansible, Terraform.Strong grasp of compliance frameworks and security standards (ISO 27001, NIST, PCI-DSS, CIS benchmarks).Excellent analytical, documentation, and communication skills.Skills:Routing, Switching and Network SecurityAbout 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.
