Sr Network Engineer

About Us :

Narwal, with its Global Delivery Model, strategically expands its reach across North America, the United Kingdom, and an offshore development centre in India. Delivery cutting edge AI, Data, and Quality Engineering solutions and consistently surpassing expectations. Narwal has achieved remarkable triple-digit growth rates year after year, earning accolades such as Inc. 5000, Best IT Services Company, Best Data Technology Company, and Partner of the Year with Tricentis.

Our Vision: To be an expert in AI, Data, and Quality Engineering transformations, bold in our thinking and authentic in our relationships.

Network Architect / Senior Network Engineer

Experience Level : 9-12Yrs

Work Location: Remote

Position Summary

We are seeking an experienced Network Architect / Senior Network Engineer to analyze, redesign, and modernize our enterprise network infrastructure across multiple clinic locations. The successful candidate will evaluate the current flat IP addressing scheme, design a scalable and secure segmented network architecture, and develop an implementation roadmap that improves security, operational visibility, troubleshooting, and site-level management.

This role requires a hands-on engineer with strong Cisco networking expertise who can independently assess existing environments, develop network architecture standards, and execute network transformation initiatives.

Key Responsibilities

Network Assessment & Architecture

• Analyze the existing network topology, IP addressing structure, routing, switching, and security architecture.
• Evaluate the current flat IP schema and identify risks, limitations, and opportunities for improvement.
• Design a scalable, secure, and standardized network architecture across multiple clinic locations.
• Create a network segmentation strategy using VLANs, subnets, routing policies, and security controls.
• Develop a site-specific IP addressing framework with dedicated IP ranges for each clinic or office location.
• Produce network diagrams, architecture documentation, and technical design specifications.

Network Segmentation & Security

• Design and implement logical network segmentation to improve:
• Security
• Compliance
• Device isolation
• Traffic management
• User and device visibility
• Define inter-VLAN routing and access control policies.
• Recommend best practices for network access control, firewall integration, and secure communications.
• Ensure network designs support future growth and acquisitions.

DHCP, DNS & IP Management

• Redesign and optimize DHCP scopes and IP allocation strategies.
• Update network services impacted by the new IP schema including:
• DHCP
• DNS
• VLAN configurations
• Routing tables
• Network monitoring systems
• Develop migration plans that minimize user and application downtime.

Implementation & Project Delivery

• Develop a phased implementation plan and migration strategy.
• Coordinate network changes with IT infrastructure, security, systems, and operations teams.
• Lead network deployment activities including testing, validation, cutover, and post-implementation support.
• Create rollback procedures and risk mitigation plans.
• Verify network performance and stability following implementation.

Operational Support

• Provide advanced troubleshooting and root-cause analysis for network-related issues.
• Support Cisco-based network infrastructure including switches, routers, wireless systems, and firewalls.
• Establish network standards, monitoring practices, and operational documentation.
• Mentor junior network engineers and provide technical guidance when needed.

Required Qualifications

• 7+ years of enterprise networking experience.
• 3+ years designing and implementing network architecture solutions.
• Strong experience with Cisco networking technologies.
• Deep understanding of:
• TCP/IP
• Routing and Switching
• VLAN Design
• Network Segmentation
• DHCP
• DNS
• VPN Technologies
• Network Security Principles
• Experience designing multi-site WAN/LAN environments.
• Strong network assessment, documentation, and planning skills.
• Experience leading infrastructure implementation projects.
• Ability to create detailed migration and implementation plans.
• Strong analytical and problem-solving capabilities.

Preferred Qualifications

• Cisco CCNP Enterprise or CCIE certification.
• Experience with healthcare environments, clinics, or HIPAA-regulated networks.
• Experience with Cisco Catalyst, Nexus…