Network Security Engineer

Job Description

About Position: A Level 3 Network/Security Engineer (Senior Engineer) is responsible for designing, implementing, and managing complex network and security infrastructures. This role involves advanced troubleshooting, strategic planning, and ensuring compliance with security standards. It typically includes leadership responsibilities such as mentoring junior engineers and handling escalated issues. Role: Network Security Engineer Location: Bangalore Experience: 8 to 12 Years Job Type: Full Time Employment What You'll Do: Network Engineering & Administration Design, configure, and maintain enterprise-grade network infrastructure: LAN, WAN, WLAN, SD-WAN, data-center networks, and branch connectivity. Manage routers, switches, load balancers, and network segmentation (VLANs, VRF, routing, NAT, ACLs, port-channel, failover, high availability). Handle dynamic routing protocols (e.g. BGP, OSPF, EIGRP), MPLS, QoS, VRF, failover configurations ? ensuring reliability, resilience and performance in enterprise and data-center environments. Security Engineering & Operations Deploy, configure, manage, and maintain network security devices and platforms: next-gen firewalls, traditional firewalls, VPN gateways (IPSec/SSL), intrusion detection/prevention (IDS/IPS), Web Application Firewalls (WAF), NAC, VPNs/remote-access. Define, implement, and enforce security policies, access control lists (ACLs), threat prevention rules, segmentation, remote access controls, secure tunneling, and VPN configurations. Conduct security assessments, vulnerability analysis, risk assessments on existing infrastructure; recommend and implement remediation measures or enhancements. Manage firmware updates, patching, configuration backups, disaster recovery (DR) preparedness for network & security devices. Expertise You'll Bring: Strong, demonstrated expertise in routing/switching, dynamic routing protocols (BGP, OSPF, etc.), LAN/WAN/SD-WAN, VLANs, firewalls, VPNs, network segmentation, and data-center networking. Hands-on experience with firewalls / security appliances ? e.g. Palo Alto Networks, Fortinet, Cisco ASA/Firepower/FTD, IDS/IPS, WAFs, VPN gateways, NAC, etc. Benefits: Competitive salary and benefits package Culture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications Opportunity to work with cutting-edge technologies Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards Annual health check-ups Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents Values-Driven, People-Centric & Inclusive Work Environment: Persistent Ltd. is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds. We support hybrid work and flexible hours to fit diverse lifestyles. Our office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities. If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment Let?s unleash your full potential at Persistent - persistent.com/careers ?Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.?