Title: Sr. Network Engineer

Location: New York City, NY (4 Days Onsite)

Type: Contract C2C

Who are we looking for? 

We are seeking a highly experienced Network Engineer with a strong background in Cisco networking technologies, campus data center, network design, and network automation. The ideal candidate should have 10+ years of experience in designing, building, and managing large-scale enterprise networks-preferably in financial services or other mission-critical environments. This role demands deep technical expertise, leadership skills, and hands-on experience in implementing and maintaining complex network infrastructures.

Indicative Activities:

• Lead the design, architecture, and deployment of enterprise-scale network infrastructure, including LAN, WAN, and data center networks.
• Manage Cisco routers, switches, Nexus series, and Cisco ACI fabrics in production environments.
• Define and enforce network standards, policies, and best practices to ensure security, scalability, and high availability.
• Drive network automation initiatives to enhance operational efficiency and reduce manual intervention.
• Collaborate with cross-functional teams for new implementations, migrations, and major upgrades.
• Lead troubleshooting and root cause analysis (RCA) for complex network incidents and outages.
• Oversee and validate configurations for firewalls (Palo Alto), load balancers (F5), and IPAM/DNS/DHCP (Infoblox) systems.
• Prepare HLDs (High-Level Designs) and LLDs (Low-Level Designs) and maintain comprehensive network documentation.
• Support capacity planning, performance tuning, and lifecycle management of network infrastructure.
• Ensure regulatory compliance and adherence to internal security and change management processes.

Technical Skills (Must Have):

• Cisco Routing & Switching - Deep understanding of BGP, OSPF, EIGRP, STP, VLANs, HSRP, and QoS.
• Cisco Nexus & Data Center Networking - Hands-on experience with Nexus 5K/7K/9K platforms and NX-OS.
• Cisco ACI (Application Centric Infrastructure) - Design, configuration, and policy-based automation.
• Network Automation - Experience with tools like Python, Ansible, or Cisco DNA Center.
• High Availability and Redundancy Design for critical network components.
• Troubleshooting & Performance Optimization across enterprise environments.
• Proven experience managing medium-to-large-scale enterprise networks (preferably financial organizations).