Network Operation Engineer

Job Title

Key Responsibilities

• 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.

What We Offer

• The chance to work with impact. Here, you're empowered to bring your biggest thinking to help our company and clients improve everyday life.
• Ownership over your career. Stay at the top of your game through our award-winning learning and development ecosystem. And when your ambitions change or we offer new opportunities, we help you pivot by providing reskilling, on-the-job learning and guidance to find new roles that might be a better fit.
• The opportunity to thrive on a high caliber team with heart. We celebrate each other's experiences and perspectives and promote a sense of belonging through our affinity groups and diversity and inclusion initiatives.
• A comprehensive total rewards package, including a competitive salary and a pension plan with matching contributions.
• Flexible health and financial benefits to support you and your eligible dependents—from day one.
• True work-life balance. Be at your best through paid time off, flexible work arrangements, volunteering opportunities, social events, and so much more.

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.

Other employment-related information

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, provincial or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email CareersNA2@cognizant.com with your request and contact information.

Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you'll deliver services to and collaborate with stakeholders outside the province who may not speak French.