SME - Wireless Networking
India
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Job Description
SME - Wireless Networking
Chennai, Tamil Nadu

Job Summary

. 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

Key Responsibilities

. 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

. 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

. 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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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 223,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending June 2026 totaled $14.8 billion.