SENIOR CONSULTANT

Job Description – Network Architect (L3/Architect Level)

Job Title

Network Architect – Enterprise Network & Security

Job Summary

We are seeking an experienced Network Architect with strong expertise in enterprise networking, application delivery, and network security technologies. The candidate will be responsible for designing, implementing, and optimizing scalable and secure network infrastructures across data center and campus environments. The role requires deep technical knowledge in Citrix NetScaler, Routing & Switching, Fortinet Firewalls, F5 Load Balancers, Cisco ISE, Cisco DNAC, and Wireless LAN Controllers (WLC).

Key Responsibilities

Design and architect enterprise network infrastructure including LAN, WAN, Wireless, and Data Center environments.

Develop high-level and low-level network designs (HLD/LLD) based on business requirements.

Implement and manage application delivery controllers (ADC) using NetScaler and F5 .

Architect and support network security solutions using Fortinet Firewalls and access control policies.

Design and implement network segmentation using Cisco ISE for secure identity-based access.

Deploy and optimize Cisco DNAC for network automation, assurance, and policy-based management.

Design and manage enterprise wireless networks using Cisco WLC .

Provide advanced troubleshooting support for complex network incidents and performance issues.

Collaborate with security, cloud, and infrastructure teams to ensure integrated solutions.

Ensure network solutions meet availability, scalability, and security requirements.

Maintain architecture documentation, diagrams, and standards.

Participate in capacity planning , network upgrades , and technology roadmap planning.

Lead major network transformation and migration initiatives.

Required Technical Skills

Core Networking

Strong expertise in Routing & Switching

BGP

OSPF

EIGRP

VLANs

STP

HSRP/VRRP

MPLS (preferred)

Application Delivery Controllers

Citrix NetScaler

Load balancing

SSL offloading

GSLB

Application optimization

F5 BIG-IP

LTM

GTM

SSL profiles

iRules (preferred)

Security

Fortinet Firewall

Policy configuration

VPN (IPSec/SSL)

NAT

Threat prevention

High Availability

Network Access Control

Cisco ISE

802.1X authentication

Network segmentation

Guest/BYOD access

Policy enforcement

Automation & Network Management

Cisco DNAC

Network automation

Assurance

Device onboarding

Policy-based segmentation

Wireless Networking

Cisco WLC

Wireless design

RF optimization

SSID configuration

Troubleshooting wireless connectivity

Preferred Skills

Network automation using:

Python

Ansible

REST APIs

Experience with:

SD-WAN

Zero Trust Network Architecture

Cloud networking (Azure/AWS)

Monitoring tools (SolarWinds, ThousandEyes, etc.)

Experience Required

10–15+ years in enterprise networking

5+ years in architecture or L3 design role

Experience handling large-scale enterprise environments

Proven experience in network design and migration projects