Enterprise Network Architect – Infrastructure & DDI

Theomnihire; Bengaluru; On-site; INR 4,200,000 - 6,400,000; Full time

Job summary

Theomnihire seeks an experienced Enterprise Network Architect to design and oversee secure, scalable network infrastructure across client offices. You will lead architecture for LAN/WAN, SD-WAN, wireless, routing, switching, and DDI solutions with hands-on design ownership.

Responsibilities include creating HLDs/LLDs, implementing multi-region SD-WAN, and aligning security with policy and identity-based access. Strong collaboration with global stakeholders is essential.

Qualifications

• 15+ years of enterprise network engineering/architecture experience.
• Hands-on with Cisco routing and switching (Catalyst 9K series, IOS-XE).
• Experience with SD-WAN solutions (Cisco SD-WAN, Meraki, Viptela).
• Designing and documenting LAN/WAN, VLANs, IP segmentation, and security zoning.
• Ability to lead design workshops and interface with global stakeholders.

Responsibilities

• Architect and document enterprise LAN/WAN infrastructure.
• Design and implement SD-WAN architecture with multi-region integration.
• Define HA, redundancy, and failover strategies across routing, switching, and WAN links.
• Design and standardize wireless networks and identity-based access.
• Produce high-quality HLDs/LLDs and implementation/run books.

Skills

Enterprise network engineering

Cisco routing & switching

SD-WAN architecture

Wireless design

Security integration

Documentation & standards

Workshop leadership

Tools

Infoblox

Cisco IOS-XE

Cisco WLCs

Cisco ISE/NPS

Meraki

Viptela

Job description

We are seeking an experienced Enterprise Network Architect to design and oversee the implementation of a secure, scalable, and regionally integrated network infrastructure across client offices. The candidate will lead architecture for LAN/WAN, SD-WAN, wireless, routing, switching, network access control, and DDI (DNS, DHCP, IPAM) solutions. This is a strategic role that combines deep technical expertise with hands-on design ownership.

Key Responsibilities

• Architect and document enterprise LAN/WAN infrastructure including:
• Core and access switching (Cisco C9300/C9200)
• Layer 2/3 topology, VLANs, and IP segmentation
• Design and implement SD-WAN architecture with multi-region integration (Americas, EMEA, APAC)
• Define HA, redundancy, and failover strategies across routing, switching, and WAN links

2. Wireless and Access Infrastructure

• Design and standardize Wi-Fi networks (Cisco Catalyst 9100, 9800 WLC)
• Integrate identity-based VLAN assignment using Cisco ISE/NPS with 802.1X/EAP-TLS
• Optimize wireless coverage, RF planning, and dynamic AP load balancing

3. DDI (DNS, DHCP, IPAM)

• Architect and deploy Infoblox DDI solution (Grid Master/Members, HA)
• Integrate DHCP and DNS services with IPAM, ISE, and Active Directory
• Define IP address management schema, subnet design, and discovery policies

4. Security & Policy Integration

• Collaborate with security teams on firewall integration and policy routing
• Implement secure dynamic VLANs and posture-based access via Cisco ISE
• Define network zoning, segmentation, and east-west traffic controls

5. Documentation & Standards

• Produce high-quality HLDs, LLDs, implementation plans, and As-Built documentation
• Establish configuration standards, naming conventions, and operational run books

Requirements

• 15+ years of experience in enterprise network engineering/architecture
• Deep hands-on expertise with:
• Cisco enterprise routing and switching (Catalyst 9K series, IOS-XE)
• Cisco WLCs (9800 series) and Wi-Fi 6 access points
• Cisco ISE or Microsoft NPS for identity-based access
• Infoblox or similar solution for DNS/DHCP/IPAM
• BGP, OSPF, HSRP, VRRP, and Policy-Based Routing
• Strong understanding of 802.1X, EAP-TLS, RADIUS, and certificate-based authentication
• Experience with SD-WAN solutions (Cisco SD-WAN /Meraki/ Viptela preferred)

Preferred Certifications

• CCNP Enterprise or CCIE (Routing & Switching / Enterprise Infrastructure)
• Infoblox Core DDI Certified (CDCA / CDIA) – preferred
• Cisco Certified Specialist – Enterprise Wireless Design
• Microsoft or Cisco security certifications a plus

• Strong documentation and presentation skills
• Ability to lead design workshops and interface with global stakeholders
• Proactive, structured, and capable of driving complex technical decisions