Sr. Network Administrator
Listed on 2026-08-21
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IT/Tech
Network Engineer, Cybersecurity, Systems Engineer, Network Security
Sr. Network Administrator
Location :
- Poughkeepsie, NY / Remote
Remote Work / Hybrid options allowed for this role .
* Please note, this role is not able to offer visa transfer or sponsorship now or in the future*
As a Network Engineer L3 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.
Top Skills needed- 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.
Key Responsibilities 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.
- 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.
- 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.
- 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.
- 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.
- Stay current with the latest network technologies and industry best practices.
- Propose and implement improvements to network infrastructure and processes.
- Participate in the planning, execution, and completion of network projects.
- Manage network changes and upgrades effectively.
Experience:
- 5+ years of experience in network engineering, with a strong focus on Cisco technologies.
Certifications:
- Cisco certifications (e.g., CCNP, CCIE) are highly desirable.
Technical
Skills:
- 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., Solar Winds, PRTG).
- Strong understanding of network security principles and practices.
Soft Skills:
- Excellent problem-solving and troubleshooting skills.
- Strong communication and interpersonal skills.
- Ability to work independently and as part of a team.
- Ability to manage multiple tasks and priorities effectively
The Salary for this position will be yearly 140,000 to 150,000 depending on experience and other qualifications of the successful candidate.
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.
Benefits- Medical/Dental/Vision/Life Insurance
- Paid holidays plus Paid Time Off
- 401(k) plan and contributions
- Long-term/Short-term Disability
- Paid Parental Leave
- Employee Stock Purchase Plan
Disclaimer:
The 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.
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