Network Security Engineer
This is an excellent opportunity for Network Engineer professionals to be part of leading-edge technology projects. Cognizant’s Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure. Our services include a spectrum of management, consulting, and systems integration services to help our clients maximize value in their infrastructure resources, while optimizing infrastructure performance and cost.
Key Responsibilities
* Design, configure, and support scalable and secure enterprise network architectures across hybrid environments (on-premises and AWS Cloud).
* Implement and manage Cisco switching technologies and ensure optimal network performance and redundancy.
* Configure and maintain Palo Alto Networks Firewalls (both physical and virtual), ensuring proper security policies and compliance.
* Administer and optimize dynamic routing protocols such as OSPF and BGP for efficient network traffic flow.
* Manage AWS networking components, including Transit Gateways, VPC Attachments, Security Groups, Endpoints, GWLB, ALB, NLB, and WAF.
* Provide technical leadership in wireless technologies and oversee deployments using Meraki products.
* Identify and implement automation opportunities to reduce manual intervention and operational overhead in collaboration with automation teams.
* Troubleshoot complex network issues through strong analytical and logical reasoning skills to ensure minimum downtime.
* Develop, update, and maintain detailed network documentation, architecture diagrams, and configuration standards.
* Collaborate with cross-functional teams to support network integration, security, and performance initiatives.
Required Skills
* Solid foundation in core networking concepts including TCP/IP, VLANs, DNS, DHCP, and subnetting.
* Hands‑on proficiency in Cisco Switching Technologies (Must).
* Strong knowledge of Dynamic Routing Protocols – OSPF, BGP.
* Extensive experience in AWS Networking – Transit Gateways, ALB/NLB, Security Groups, Endpoints, GWLB, WAF (Must).
* Strong understanding of Wireless Networking, with hands‑on experience using Meraki products.
* Excellent logical thinking and troubleshooting skills to resolve complex technical issues (Must).
* Proven automation skills to identify network improvement opportunities (Must).
* Certifications preferred: CCNP, AWS Certified Advanced Networking, PCNSE (Palo Alto), or equivalent.
Seniority Level
Mid‑Senior level
Employment Type
Full‑time
Job Function
Information Technology
Industries
IT Services and IT Consulting
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