SME - Wireless Networking
Chennai · Mid Level
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HIGH
Our tracked job listings for HCLTech show strong recent activity.
First 72 hours
Still inside it - posted 10h agoEarly applicants get seen before the pile builds.
Reposted role
This role was posted earlier, closed, and has now reopened - the company is accepting candidates again.
First posted Aug 24, 2026
Skills required
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Job description
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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