As a L3 support Network Engineer specializing in VSS and Nexus integration services, you'll be responsible for designing, implementing, and maintaining complex network infrastructures, focusing on Cisco Nexus 6000 or 7000 or 9000 series switches and Cisco Virtual Switch System technologies, ensuring high availability, performance, and security.

About Cognizant’s CIS Practice:

Cognizant’s CIS (Cognizant Infrastructure Services) Practice is a global leader in providing IT infrastructure services. We deliver innovative solutions to optimize and transform IT infrastructure, ensuring business agility and operational efficiency. Our services include cloud computing, data center management, network services, and cybersecurity. We focus on understanding client needs and delivering customized solutions to drive business success.

In this role, you will:

Network Design and Implementation:

• Design, implement, and maintain complex network infrastructures, including LAN, WAN, and data center networks.

• Focus on Cisco Nexus 6000 or 7000 or 9000 series switches and Cisco VSS technologies.

• Ensure network designs meet business requirements, performance standards, and security policies.

• Develop and document network topologies and configurations.

VSS and Nexus Expertise:

• Deep understanding of Cisco VSS technology, including fabric partitioning, redundancy, and failover mechanisms.

• Extensive experience with Cisco Nexus 6000 or 7000 or 9000 series switches, including configuration, troubleshooting, and optimization.

• Proficient in implementing and managing Nexus Fabric, including Virtual Port Channels (vPC) and Nexus 9000 series switch features.

Troubleshooting and Problem Resolution:

• Diagnose and resolve complex network issues, including performance bottlenecks, connectivity problems, and security vulnerabilities.

• Utilize network monitoring tools and protocols to identify and address issues proactively.

• Document and communicate network issues and resolutions effectively.

Network Security:

• Implement and maintain network security measures, including access control lists (ACLs), firewalls, and intrusion detection/prevention systems.

• Stay up-to-date on the latest security threats and vulnerabilities.

Collaboration and Communication:

• Collaborate with other IT teams, including server, storage, and application teams, to ensure network infrastructure meets business needs.

• Communicate network status, issues, and resolutions effectively to stakeholders.

Continuous Improvement:

• Stay current with the latest network technologies and industry best practices.

• Propose and implement improvements to network infrastructure and processes.

Project Management:

• Participate in the planning, execution, and completion of network projects.

• Manage network changes and upgrades effectively.

What you’ll need to succeed (required skills):

• 5+ years of experience in network engineering, with a strong focus on Cisco technologies.

• Extensive knowledge of networking protocols (e.g., TCP/IP, OSPF, BGP, MPLS).

• Experience with network operating systems (e.g., IOS, NX-OS).

• Familiarity with network monitoring and management tools (e.g., SolarWinds, PRTG).

• Strong understanding of network security principles and practices.

• Certifications: Cisco certifications (e.g., CCNP, CCIE) are highly desirable.

Note: This role is not able to offer visa transfer or sponsorship now or in the future* . Applications will be accepted until Feb 16, 2026.

This position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and subject to the terms of Cognizant’s applicable plans.

Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:
• Medical/Dental/Vision/Life Insurance
• Paid holidays plus Paid Time Off
• 401(k) plan and contributions
• Long-term/Short-term Disability
• Paid Parental Leave

Disclaimer: The salary, other compensation, and benefits 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.

The Cognizant community:
We are a high caliber team who appreciate and support one another. Our people uphold an energetic, collaborative and inclusive workplace where everyone can thrive.

• Cognizant is a global community with more than 300,000 associates around the world.
• We don’t just dream of a better way – we make it happen.
• We take care of our people, clients, company, communities and climate by doing what’s right.
• We foster an innovative environment where you can build the career path that’s right for you.

About us:
Cognizant is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant (a member of the NASDAQ-100 and one of Forbes World’s Best Employers 2025) is consistently listed among the most admired companies in the world. Learn how Cognizant helps clients lead with digital at www.cognizant.com

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.

Disclaimer:
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.