Sr. Network Engineer

Senior Network Engineer (Cisco / Enterprise)Pay Range : $75 / hour to $81 / hour Overview

We are seeking a highly experienced Senior Network Engineer to support, design, and secure large-scale enterprise network environments. This role is hands-on and strategic, requiring deep expertise in Cisco networking, security architecture, and full lifecycle network implementations. Candidates must have extensive experience working in complex enterprise environments with 5,000–15,000+ network nodes .

Required Qualifications

as a Senior Network Engineer in large enterprise environments

Proven hands-on experience with Cisco SDA and TrustSec (full lifecycle implementation experience strongly preferred)

Extensive experience supporting enterprise networks with 5,000–15,000+ nodes

10+ years of hands-on configuration and support of Cisco routers, switches, and related infrastructure

Experience in complex, multi-platform, multi-protocol network environments

Strong background in planning, designing, and documenting Cisco-based enterprise networks

Expertise in :

LAN, WAN, MAN, Metro Ethernet

Routing, topology, QoS, multicast, and network protocols

MPLS, NAC, VPN, remote access solutions

Firewalls, IDS / IPS, security devices, NAT / PAT

ACS, Adaptive Authentication, SecurID

RADIUS / LDAP / TACACS

Wireless networking

Packet-level network traffic analysis expertise

Experience with network monitoring, analysis, and management tools

Strong project management, leadership, and interpersonal skills

Ability to work independently while mentoring and leading other engineers

Preferred :

Healthcare industry experience

Responsibilities

Design, architect, and provide engineering support for enterprise network and systems infrastructure

Develop and implement network standards, policies, and procedures

Serve as a technical mentor for Network Engineers and provide team leadership

Perform maintenance, upgrades, and lifecycle management of :

Routers, switches, firewalls

Remote access systems

Network management and monitoring systems

Monitor network connectivity and ensure high-quality, reliable data transmission

Provide technical support across LAN, WAN, MAN, wireless, security, and cloud-based networks

Manage day-to-day network operations and ensure adherence to enterprise SLAs

Evaluate new applications and technologies for impact on existing infrastructure and security posture

Coordinate and support network vulnerability assessments and penetration testing efforts

Implement remediation strategies and threat mitigation solutions

Collaborate with project managers, IT teams, vendors, contractors, and consultants

Participate in security policy creation, reviews, and compliance initiatives

Design, implement, and maintain perimeter and internal network security systems

Own and secure enterprise data networks, including :

Network perimeter

Remote access

WAN

Data centers

Wired and wireless environments

Identify, troubleshoot, and resolve complex network hardware and software issues

Promote governance, compliance, scalability, performance, and reliability across the network infrastructure