Network Operations Support Senior Network Infrastructure Engineer

Client Name: City of New York

Start Date : October 2025
End Date : October 2027
Contract Length (in weeks):104

OUTLINE OF RESPONSIBILITIES

• Serve as lead technical resource for day-to-day network administration tasks including network equipment installation, configuration, and upgrades, testing and troubleshooting.
  
• Configuration, maintenance and support including but not limited to Cisco Nexus, ASR, ACI, Catalyst and SDWAN platforms.

• Troubleshoots and recommends improvements to network including operating systems and related software and provides tactical and strategic input to overall network planning and related projects. Isolates and resolves network problems in a timely manner.
  
• Provide solution design and operational support of Cisco ASA and FirePOWER (FMC/FTD/FXOS) network firewalls including AnyConnect remote access VPNs as well as isakmp/IKEv2/VTI/IPSEC/GRE site-to-site tunnels.
  
• Network design and configuration of major network protocols and technologies including BGP, EIGRP, OSPF, VXLAN, VPC, VDC, 802.1Q, QoS, STP, TCP/UDP, FTP, DNS, SIP, RTP, ACLs
  
• Collaborating with applications and support teams on design and implementation of application load balancing solutions (F5, Avi Networks/NSX Load Balancer).
  
• Using tools (e.g., Netscout, Wireshark, tcpdump) to perform packet-level analysis for monitoring for security risks and troubleshooting network traffic.
  
• Management of Azure/AWS cloud networks and firewalls.
  
• Assist with planning, implementing, upgrading, or monitoring security measures for the protection of computer networks, systems, and information.
  
• Responsible for working with vendors and resolving network outages in a timely fashion in order to meet internal SLAs and/or Metrics.
  
• Provide operational support to include problem-determination, resolution, root cause analysis, and future mitigation
  
• Creating and updating Standard Operating Procedures, network documentation and diagrams using Visio/Lucid ​ chart.
  

Requirements

MANDATORY MINIMUM QUALIFICATIONS

The successful candidate must have minimally achieved the following level of experience:

• 8+ years of experience in configuring and troubleshooting Cisco routers and L2/L3 switches (Nexus 9k/7k/5, ASR, Catalyst, ACI, etc.)
  
• 8+ years of experience routing protocols such as BGP, OSPF, EIGRP, etc.
  
• 5+ years of experience in network security (Cisco ASA & Firepower)
  
• 5+ years of experience with F5 load balancing (LTM, GTM, BIG-IQ)
  
• 5+ years of packet analysis to resolve complex technical issues.
  
  PREFERABLE QUALIFICATIONS
  
  
• Prior education industry/project experience
  
• CCNP or VMware certification
  
• Experience with SDWAN, vManage, Meraki
  
• Must be a self-starter and be able to work well independently and in a team
  
• Excellent oral and written communication skills; ability to communicate in a credible and confident manner at all levels in the organization, especially on technical issues to a non-technical audience.
  
• Detailed and process-oriented
  
• Experience in VMware NSX and NSX Advanced Load Balancer
  
• Experience using Splunk SIEM and Splunk Processing Language (SPL)
  
• Experience Azure/AWS cloud infrastructure and Express Route
  
• Experience in implementing network security best practices