Chennai, Tamil Nadu

Job Summary

1. Core Networking Fundamentals TCP/IP stack (L2–L7 understanding) Routing &
- Switching Protocols: OSPF, BGP, EIGRP, IS‑IS VLANs, STP, EVPN, VXLAN WAN technologies MPLS, SD‑WAN, Internet VPNs IP addressing & design IPv4/IPv6, CIDR, summarization High availability & resiliency HSRP/VRRP, ECMP, load balancing QoS & traffic engineering 2.

Network

Design &

- Architecture Skills (Architect Core) This is the key differentiator of a Network Architect. Enterprise network design Campus, Data Center, WAN, Cloud Reference architectures Spine‑Leaf, 3‑tier, Clos Scalability planning Capacity planning & growth modeling Redundancy & fault tolerance Active‑active, DR, multi‑region Technology evaluation Vendor comparison & design trade‑offs Documentation HLD (High‑Level Design) LLD (Low‑Level Design) Network diagrams (logical & physical) 3. Data Center &
- Cloud Networking Up-to-date architects must be hybrid‑focused.

Data Center

Spine‑Leaf architectures VXLAN/EVPN DC interconnect (DCI) Storage networking basics (iSCSI, FC – conceptual) Cloud Networking (AWS / Azure / GCP) VPC / VNet design Subnets, routing tables, IGW, NAT Hybrid connectivity Site‑to‑Site VPN ExpressRoute / Direct Connect Cloud security groups &

- NACLs Multi‑region & multi‑cloud design 4.

Network Security Architecture

Architects design security by default, not as an add‑on. Perimeter & internal security Firewalls (NGFW) DMZ design Zero Trust principles Segmentation VRFs, micro‑segmentation Secure access NAC (802.1X) VPN (Remote &

- Site‑to‑Site) DDoS mitigation concepts Compliance awareness ISO 27001, PCI‑DSS, SOC2 (design implications) 5. Automation &
- Programmability (Increasingly Essential) Not deep coding, but designing for automation. Network automation concepts APIs &
- REST basics Tools & languages (working knowledge) Python Ansible Terraform (especially for cloud) SDN & controllers Cisco ACI VMware NSX Infrastructure as Code (IaC) mindset 6. Tools &
- Technologies Hands‑on familiarity is expected. Network vendors Cisco, Juniper, Arista Monitoring & observability SNMP, NetFlow, Telemetry SolarWinds, PRTG, Grafana Diagramming & documentation Visio, Draw.io, Lucidchart Troubleshooting Wireshark, packet analysis (conceptual depth) 7. Soft Skills &
- Business Alignment (Critical) Architects operate at technical + executive levels. Stakeholder communication (IT & business) Translating business needs into technical design Risk analysis & trade‑off decisions Vendor negotiation &
- RFP evaluation Presentation & design justification Mentoring engineers 8. Governance, Standards &
- Operations Network standards & best practices Change management &
- ITIL awareness Lifecycle management (design build operate retire) Cost optimization (CapEx vs OpEx) SLA & availability modelin

Key Responsibilities

1. Core Networking Fundamentals TCP/IP stack (L2–L7 understanding) Routing &
- Switching Protocols: OSPF, BGP, EIGRP, IS‑IS VLANs, STP, EVPN, VXLAN WAN technologies MPLS, SD‑WAN, Internet VPNs IP addressing & design IPv4/IPv6, CIDR, summarization High availability & resiliency HSRP/VRRP, ECMP, load balancing QoS & traffic engineering 2.

Network

Design &

- Architecture Skills (Architect Core) This is the key differentiator of a Network Architect. Enterprise network design Campus, Data Center, WAN, Cloud Reference architectures Spine‑Leaf, 3‑tier, Clos Scalability planning Capacity planning & growth modeling Redundancy & fault tolerance Active‑active, DR, multi‑region Technology evaluation Vendor comparison & design trade‑offs Documentation HLD (High‑Level Design) LLD (Low‑Level Design) Network diagrams (logical & physical) 3. Data Center &
- Cloud Networking Modern architects must be hybrid‑focused.

Data Center

Spine‑Leaf architectures VXLAN/EVPN DC interconnect (DCI) Storage networking basics (iSCSI, FC – conceptual) Cloud Networking (AWS / Azure / GCP) VPC / VNet design Subnets, routing tables, IGW,



NAT Hybrid connectivity Site‑to‑Site VPN ExpressRoute / Direct Connect Cloud security groups &

- NACLs Multi‑region & multi‑cloud design 4.

Network Security Architecture

Architects design security by default, not as an add‑on. Perimeter & internal security Firewalls (NGFW) DMZ design Zero Trust principles Segmentation VRFs, micro‑segmentation Secure access NAC (802.1X) VPN (Remote &

- Site‑to‑Site) DDoS mitigation concepts Compliance awareness ISO 27001, PCI‑DSS, SOC2 (design implications) 5. Automation &
- Programmability (Increasingly Essential) Not deep coding, but designing for automation. Network automation concepts APIs &
- REST basics Tools & languages (working knowledge) Python Ansible Terraform (especially for cloud) SDN & controllers Cisco ACI VMware NSX Infrastructure as Code (IaC) mindset 6. Tools &
- Technologies Hands‑on familiarity is expected. Network vendors Cisco, Juniper, Arista Monitoring & observability SNMP, NetFlow, Telemetry SolarWinds, PRTG, Grafana Diagramming & documentation Visio, Draw.io, Lucidchart Troubleshooting Wireshark, packet analysis (conceptual depth) 7. Soft Skills &
- Business Alignment (Critical) Architects operate at technical + executive levels. Stakeholder communication (IT & business) Translating business needs into technical design Risk analysis & trade‑off decisions Vendor negotiation &
- RFP evaluation Presentation & design justification Mentoring engineers 8. Governance, Standards &
- Operations Network standards & best practices Change management &
- ITIL awareness Lifecycle management (design build operate retire) Cost optimization (CapEx vs OpEx) SLA & availability modelin

Skill Requirements

1. Core Networking Fundamentals TCP/IP stack (L2–L7 understanding) Routing &
- Switching Protocols: OSPF, BGP, EIGRP, IS‑IS VLANs, STP, EVPN, VXLAN WAN technologies MPLS, SD‑WAN, Internet VPNs IP addressing & design IPv4/IPv6, CIDR, summarization High availability & resiliency HSRP/VRRP, ECMP, load balancing QoS & traffic engineering 2.

Network

Design &

- Architecture Skills (Architect Core) This is the key differentiator of a Network Architect. Enterprise network design Campus, Data Center, WAN, Cloud Reference architectures Spine‑Leaf, 3‑tier, Clos Scalability planning Capacity planning & growth modeling Redundancy & fault tolerance Active‑active, DR, multi‑region Technology evaluation Vendor comparison & design trade‑offs Documentation HLD (High‑Level Design) LLD (Low‑Level Design) Network diagrams (logical & physical) 3. Data Center &
- Cloud Networking Modern architects must be hybrid‑focused.

Data Center

Spine‑Leaf architectures VXLAN/EVPN DC interconnect (DCI) Storage networking basics (iSCSI, FC – conceptual) Cloud Networking (AWS / Azure / GCP) VPC / VNet design Subnets, routing tables, IGW, NAT Hybrid connectivity Site‑to‑Site VPN ExpressRoute / Direct Connect Cloud security groups &

- NACLs Multi‑region & multi‑cloud design 4.

Network Security Architecture

Architects design security by default, not as an add‑on. Perimeter & internal security Firewalls (NGFW) DMZ design Zero Trust principles Segmentation VRFs, micro‑segmentation Secure access NAC (802.1X) VPN (Remote &

- Site‑to‑Site) DDoS mitigation concepts Compliance awareness ISO 27001, PCI‑DSS, SOC2 (design implications) 5. Automation &
- Programmability (Increasingly Essential) Not deep coding, but designing for automation. Network automation concepts APIs &
- REST basics Tools & languages (working knowledge) Python Ansible Terraform (especially for cloud)



SDN & controllers Cisco ACI VMware NSX Infrastructure as Code (IaC) mindset 6. Tools &
- Technologies Hands‑on familiarity is expected. Network vendors Cisco, Juniper, Arista Monitoring & observability SNMP, NetFlow, Telemetry SolarWinds, PRTG, Grafana Diagramming & documentation Visio, Draw.io, Lucidchart Troubleshooting Wireshark, packet analysis (conceptual depth) 7. Soft Skills &
- Business Alignment (Critical) Architects operate at technical + executive levels. Stakeholder communication (IT & business) Translating business needs into technical design Risk analysis & trade‑off decisions Vendor negotiation &
- RFP evaluation Presentation & design justification Mentoring engineers 8. Governance, Standards &
- Operations Network standards & best practices Change management &
- ITIL awareness Lifecycle management (design build operate retire) Cost optimization (CapEx vs OpEx) SLA & availability modelin

Other Requirements

1. Core Networking Fundamentals TCP/IP stack (L2–L7 understanding) Routing &
- Switching Protocols: OSPF, BGP, EIGRP, IS‑IS VLANs, STP, EVPN, VXLAN WAN technologies MPLS, SD‑WAN, Internet VPNs IP addressing & design IPv4/IPv6, CIDR, summarization High availability & resiliency HSRP/VRRP, ECMP, load balancing QoS & traffic engineering 2.

Network

Design &

- Architecture Skills (Architect Core) This is the key differentiator of a Network Architect. Enterprise network design Campus, Data Center, WAN, Cloud Reference architectures Spine‑Leaf, 3‑tier, Clos Scalability planning Capacity planning & growth modeling Redundancy & fault tolerance Active‑active, DR, multi‑region Technology evaluation Vendor comparison & design trade‑offs Documentation HLD (High‑Level Design) LLD (Low‑Level Design) Network diagrams (logical & physical) 3. Data Center &
- Cloud Networking Modern architects must be hybrid‑focused.

Data Center

Spine‑Leaf architectures VXLAN/EVPN DC interconnect (DCI) Storage networking basics (iSCSI, FC – conceptual) Cloud Networking (AWS / Azure / GCP) VPC / VNet design Subnets, routing tables, IGW, NAT Hybrid connectivity Site‑to‑Site VPN ExpressRoute / Direct Connect Cloud security groups &

- NACLs Multi‑region & multi‑cloud design 4.

Network Security Architecture

Architects design security by default, not as an add‑on. Perimeter & internal security Firewalls (NGFW) DMZ design Zero Trust principles Segmentation VRFs, micro‑segmentation Secure access NAC (802.1X) VPN (Remote &

- Site‑to‑Site) DDoS mitigation concepts Compliance awareness ISO 27001, PCI‑DSS, SOC2 (design implications) 5. Automation &
- Programmability (Increasingly Essential) Not deep coding, but designing for automation. Network automation concepts APIs &
- REST basics Tools & languages (working knowledge) Python Ansible Terraform (especially for cloud) SDN & controllers Cisco ACI VMware NSX Infrastructure as Code (IaC) mindset 6. Tools &
- Technologies Hands‑on familiarity is expected. Network vendors Cisco, Juniper, Arista Monitoring & observability SNMP, NetFlow, Telemetry SolarWinds, PRTG, Grafana Diagramming & documentation Visio, Draw.io, Lucidchart Troubleshooting Wireshark, packet analysis (conceptual depth) 7. Soft Skills &
- Business Alignment (Critical) Architects operate at technical + executive levels. Stakeholder communication (IT & business) Translating business needs into technical design Risk analysis & trade‑off decisions Vendor negotiation &
- RFP evaluation Presentation & design justification Mentoring engineers 8. Governance, Standards &
- Operations Network standards & best practices Change management &
- ITIL awareness Lifecycle management (design build operate retire) Cost optimization (CapEx vs OpEx) SLA & availability modelin

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📌 SME - Wireless Networking (Chennai)
🏢 HCLTech
📍 Chennai