Senior Network Infrastructure Engineer

New Yesterday

Position Summary: A large-scale IT program is seeking a highly experienced   Senior Network Infrastructure Engineer   to support and modernize enterprise networking environments including hybrid cloud data centers, WAN networks, and critical application infrastructure. This role involves design, implementation, and support of a range of networking technologies including Cisco routers, switches, firewalls, load balancers, and cloud networking.
The engineer will play a key role in infrastructure upgrades, network optimization, and operational support especially within projects like   campus network refreshes ,   data center modernization , and   application delivery optimization .
Requirements Key Responsibilities: Lead daily network administration and support: equipment configuration, installation, upgrades, and troubleshooting.
Configure and support Cisco technologies:   Nexus, ASR, Catalyst, ACI, SDWAN .
Support and troubleshoot   Cisco ASA/FirePOWER (FMC/FTD/FXOS)   firewalls and VPNs (AnyConnect, IPSec, GRE, IKEv2).
Design and configure advanced network protocols and technologies:   BGP, EIGRP, OSPF, VXLAN, VPC, QoS, STP, ACLs, TCP/IP .
Collaborate with application and infrastructure teams on   F5   and   NSX/Avi   load balancer configuration.
Use diagnostic tools like   Wireshark, tcpdump, and Netscout   for deep packet inspection and root cause analysis.
Provide operational support: issue resolution, root cause analysis, and preventative solutions.
Manage   Azure and AWS cloud network configurations   and firewall rules.
Work with vendors to ensure timely resolution of outages and incidents within SLA targets.
Maintain and develop network diagrams, standard operating procedures, and technical documentation (Visio, Lucidchart).
Monitor and implement   security best practices   for enterprise and cloud-based network environments.
Required Qualifications: 8+ years   hands-on experience with Cisco routers and switches (Nexus, Catalyst, ASR, ACI, etc.)
8+ years   with routing protocols (BGP, OSPF, EIGRP)
5+ years   working with network security tools (Cisco ASA, FirePOWER)
5+ years   experience configuring and supporting   F5   (LTM, GTM, BIG-IQ)
5+ years   experience conducting packet-level network analysis
Preferred Qualifications: Experience in   K-12 or education-related projects
Cisco CCNP, VMware certifications
Familiarity with   SDWAN, Meraki, vManage
Experience in   VMware NSX/NSX ALB
Hands-on experience with   Splunk SIEM/SPL
Exposure to   Azure and AWS infrastructure , ExpressRoute
Process-driven mindset with strong documentation skills
Excellent communication skills with the ability to explain technical issues to non-technical stakeholders
Benefits WHAT WE OFFER:
Our W2 employees can expect the following benefits: Competitive pay
Health/Dental Insurance
Group Life Insurance
401K
HSA/FSA
Pre-Tax Transportation Program
Generous Paid Time Off/Holiday Policy
Requirements Key Responsibilities: Lead daily network administration and support: equipment configuration, installation, upgrades, and troubleshooting. Configure and support Cisco technologies: Nexus, ASR, Catalyst, ACI, SDWAN. Support and troubleshoot Cisco ASA/FirePOWER (FMC/FTD/FXOS) firewalls and VPNs (AnyConnect, IPSec, GRE, IKEv2). Design and configure advanced network protocols and technologies: BGP, EIGRP, OSPF, VXLAN, VPC, QoS, STP, ACLs, TCP/IP. Collaborate with application and infrastructure teams on F5 and NSX/Avi load balancer configuration. Use diagnostic tools like Wireshark, tcpdump, and Netscout for deep packet inspection and root cause analysis. Provide operational support: issue resolution, root cause analysis, and preventative solutions. Manage Azure and AWS cloud network configurations and firewall rules. Work with vendors to ensure timely resolution of outages and incidents within SLA targets. Maintain and develop network diagrams, standard operating procedures, and technical documentation (Visio, Lucidchart). Monitor and implement security best practices for enterprise and cloud-based network environments. Required Qualifications: 8+ years hands-on experience with Cisco routers and switches (Nexus, Catalyst, ASR, ACI, etc.) 8+ years with routing protocols (BGP, OSPF, EIGRP) 5+ years working with network security tools (Cisco ASA, FirePOWER) 5+ years experience configuring and supporting F5 (LTM, GTM, BIG-IQ) 5+ years experience conducting packet-level network analysis Preferred Qualifications: Experience in K-12 or education-related projects Cisco CCNP, VMware certifications Familiarity with SDWAN, Meraki, vManage Experience in VMware NSX/NSX ALB Hands-on experience with Splunk SIEM/SPL Exposure to Azure and AWS infrastructure, ExpressRoute Process-driven mindset with strong documentation skills Excellent communication skills with the ability to explain technical issues to non-technical stakeholders
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Location:
Brooklyn

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