Zindagi Technologies - Senior Consultant/Network Security Engineer

Senior Consultant - Network Security Engineer Company : Zindagi Technologies Location : Delhi / NCR (Onsite + Travel Required) Experience : 6+ Years Employment Type : Full-Time Working Days : 5 Days a Week About Zindagi Technologies : Zindagi Technologies is a leading IT infrastructure and cybersecurity solutions provider, delivering enterprise-grade networking, security, and digital transformation solutions. We work extensively on government and enterprise projects, ensuring high availability, security, and scalability of IT environments. Role Overview : We are looking for a Senior Network Security Engineer with strong expertise in network security, firewall technologies, and enterprise network architecture. The candidate should have hands-on experience in implementation, deployment, and migration of network and security solutions. This role requires involvement in design (HLD/LLD), execution, and on-site project delivery, especially for government projects. Job Description : - In depth understanding on Firewall Architecture. - Experience in designing and deploying Firewall, IPS and similar technologies NGFW, NAC/AAA, UTM, NGIPS etc. - LAN, WAN, as well as Site-to-Site and Remote Access VPN connectivity. - Device Hardening, IDS/IPS, Firewalls and IPsec VPN. - Strong understanding and hands-on experience with site-to-site VPN technologies, including IPsec, GRE, mGRE, DMVPN, FlexVPN, and cloud-based VPN integrations (e.g., Azure, AWS, GCP) for secure and scalable inter-site connectivity. - Hands-on experience with Remote Access VPN solutions using protocols like SSL VPN, IPsec IKEv2, and AnyConnect, including integration with RADIUS/LDAP, posture checks, and endpoint compliance policies. - Should have hands-on knowledge of concepts (NAT, ACL, Access Groups, IPsec, AAA) and be able to troubleshoot network Protocols. - Strong hands-on experience with Cisco ISE or Aruba ClearPass for Network Access Control (NAC) design and implementation. - In-depth knowledge of 802.1X authentication, RADIUS, and TACACS+ protocols and integration with identity stores (e.g., AD, LDAP). - Proven experience designing and deploying NAC use cases, including : 1. Posture Assessment & Compliance 2. Guest Access Portals and Onboarding 3. BYOD (Bring Your Own Device) onboarding and control 4. Profiling and policy enforcement - Ability to create and troubleshoot authentication and authorization policies, device profiles, and endpoint compliance checks. - Excellent understanding on Routing protocol like OSPF, BGP, ACL, licensing; Switching - VLAN, VTP, STP, inter VLAN routing, HSRP, ether channel, should have understanding & knowledge on VSS technology, stacking. - Configuration, Implementation and Troubleshooting experience on Next generation firewalls such as Cisco- FTD-21xx, 4xxx, 9xxx series ASA-55XX series, VM appliance, Palo alto-PA-3200, 5200, 7000 series and VM appliance, Fortigate-800, 900, 1000-7000 Series and VM appliance, Checkpoint3000, 6000 series. - Reviewing and validating High Level Design, Low Level design and Acceptance test. - Should have experience at least working on 2 to 3 projects at the organization level. - Understanding of Designing and Implementation of Data Center for Network Security. - Work closely with customers, project managers and other engineers to develop customized Network. - Work closely with the Project Manager in project planning, status reporting and ensure adherence to. - Aware of resilience disciplines - availability, security, scalability, reliability, etc. Good To Have : - Understanding or experience in Load Balancing technologies. - Understanding or experience in Sandboxing and Anti-APT. - Understanding or experience in configuring devices through API. - Understanding or experience in NAC and endpoint security. Desired Candidate Profile : - Strong written and verbal communication skills. - Hands-on experience in configuring, implementing, and troubleshooting in any Firewalls. - 3+ years relevant and hands-on experience in Security Technologies. - Strong understanding of network and security infrastructure. - Experience in Security Infrastructure deployment for large scale production. - Configuring and Maintaining firewalls, virtual private networks, web protocols, and email security. - Good negotiation and convincing skills. - Strong analytical, problem solving and interpersonal skills. - Knowledge of Network infrastructure deployment. - Strong practical knowledge of troubleshooting Routing and Switching.