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Network Engineer L3 support

00068924281

LOCATION: Poughkeepsie, 5 times a week from client (ONSITE OPPORTUNITY)

Applicants must be authorized to work in the US without sponsorship. Please note, this role is not able to offer visa transfer or sponsorship now or in the future.

As a Network Engineer, L3 support 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):

  • Extensive hands-on 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.

  • Ability to manage multiple tasks and priorities effectively, Cisco VSS (Virtual Switching System) Virtual Port Channels (vPC) & Virtual Device Contexts (VDCs)

  • Nexus NX-OS Devices Integration & Upgradation Services

  • Data Center Software & Hardware technologies refresh

  • F5 Load Balancers Configuration & Operations, Troubleshooting

  • Cisco Wireless Technologies configurations & support

  • In-depth knowledge of DMVPN setup, support & configurations.

Certifications:

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

Compensation: We are offering between $110,000 – $130,000. Applications will be accepted until Jun 20th, 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


About Cognizant: 
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap 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, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai 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] with your request and contact information.

Benefits that help you thrive and grow

Our benefits program is built with you in mind—so you can enjoy a fulfilling, balanced and healthy life.

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Financial wellbeing

We regularly review market data to ensure compensation reflects the value you bring. Your benefits extend beyond pay and may include retirement plans, financial education, etc.

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Physical and mental health

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program and more. 

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Your career, your way

With 350,000+ roles at Cognizant, you’ll have opportunities explore new technologies, industries and locations—and build the skills you need to grow your career.

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Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

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