Key Responsibilities
Network Monitoring & Operations
- Monitor network performance, availability, and alerts using NMS tools.
- Troubleshoot and resolve L1/L2 network incidents related to routers, switches, firewalls, and load balancers.
- Perform root cause analysis (RCA) for recurring network issues.
- Maintain documentation for incidents, changes, configurations, and standard operating procedures.
Network Device Management
- Perform configuration, upgrades, and maintenance of:
- Routers (Cisco, Juniper, etc.)
- Switches (Layer 2 & Layer 3)
- Firewalls (Palo Alto, Fortinet, Cisco ASA, Check Point, etc.)
- Load Balancers (F5, Citrix ADC, etc.)
Network Delivery / Implementation Tasks
- Execute port activations (port turn-ups) and end-to-end connectivity tests.
- Create, modify, and validate firewall rules while following security policies.
- Participate in network deployments, migrations, and capacity expansion activities.
- Assist in implementing load-balancing policies and traffic routing rules.
Operational Support & Compliance
- Work with cross-functional teams to support application rollouts and infra changes.
- Ensure all changes follow ITIL processes (Change, Incident, Problem).
- Maintain network security and compliance through periodic audits and patching.
- Participate in on-call rotation or 24/7 support shifts (as applicable).
Required Skills & Qualifications
- Strong understanding of networking protocols: TCP/IP, VLANs, STP, BGP, OSPF, HSRP/VRRP, NAT/PAT, etc.
- Hands-on experience with enterprise-grade network hardware.
- Experience with firewall management and rule deployment.
- Familiarity with load balancer concepts: VIPs, pools, health monitors, SSL offloading.
- Good knowledge of troubleshooting tools (Wireshark, traceroute, ping, netstat).
- Ability to read network diagrams and understand architecture flows.
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About us
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, building the bridge between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, realize tangible returns and keep global enterprises ahead in a fast-changing world. See how at www.cognizant.com or @cognizant.
Additional employment information
Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.
If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] for roles based in the Americas or [email protected] for roles based in India.
