Sr Network Architect

Posted:
2/24/2026, 11:09:28 AM

Location(s):
Karnataka, India ⋅ Bengaluru, Karnataka, India

Experience Level(s):
Senior

Field(s):
IT & Security

Workplace Type:
Hybrid

What success looks like in this role:

1) Customer Network Architecture & End-to-End Design Leadership (Primary)

  • Own the end-to-end network architecture for large/complex customer environments (multi-site, multi-cloud, hybrid, regulated).
  • Lead architecture discovery: current-state analysis, application dependency mapping, traffic flows, capacity baselining, and risk assessment.
  • Produce high-quality architecture artifacts, including:
    • High-level and low-level designs (HLD/LLD)
    • Reference architectures and patterns
    • Logical/physical diagrams, segmentation models, routing & switching plans
    • Security and resiliency designs (fault domains, HA, DR)
    • Bill of materials, licensing alignment, and cost/risk trade-offs
  • Define and validate target-state architecture across:
    • Data center / campus / WAN / branch
    • SD-WAN, SASE, ZTNA integration
    • Load balancing (L4/L7), DNS/DHCP/IPAM
    • DDI, NAC, segmentation, micro-segmentation (where applicable)
    • IPv4/IPv6 strategy, BGP/OSPF/ISIS, EVPN/VXLAN (if required)
  • Ensure designs align to customer business outcomes (growth, M&A, compliance, cloud adoption, user experience, cost controls).

Hands-on expectation: Ability to validate designs via config prototypes, lab testing, packet capture, and troubleshooting in real environments.

2) Operational Stabilization & Network Reliability Excellence (Primary)

  • Lead the stabilization of network operations by establishing and driving:
    • Operational maturity (standard operating procedures, runbooks, escalation paths)
    • Incident reduction program using RCA, problem management, and corrective action plans
    • Change governance with standardized change templates, risk scoring, and backout plans
    • Configuration standardization (golden configs, compliance checks, drift detection)
    • Resiliency improvements: elimination of SPOFs, HA consistency, redundancy validation, failover testing
  • Create a Network Reliability Plan with measurable targets:
    • Availability / downtime reduction
    • MTTR improvement
    • Change failure rate reduction
    • Alert noise reduction
    • Performance SLOs (latency/jitter/loss) aligned to app needs
  • Build “Day-2 Operations” readiness:
    • Monitoring/telemetry baselines (SNMP/streaming telemetry/syslog/NetFlow)
    • Event correlation and service mapping
    • Capacity forecasting and lifecycle management
  • Drive post-implementation validation: performance testing, failover testing, and operational acceptance criteria.

3) Executive / C-Level Customer Engagement & Technology Leadership (Primary)

  • Act as the trusted technical advisor to customer executives (CIO, CTO, CISO, VP Infrastructure/Operations).
  • Lead executive-level workshops and steer conversations from technical detail to business outcomes:
    • Risk posture, resiliency, compliance readiness
    • Cost optimization (CapEx/OpEx), vendor strategy, roadmap planning
    • Cloud/network strategy alignment
  • Present architectural decisions with clear trade-offs:
    • “Option A vs B” cost, risk, complexity, time-to-value
    • Explicit assumptions, constraints, and recommended path
  • Own the technical narrative in high-stakes settings:
    • QBRs/EBRs, steering committees, architecture review boards
    • Critical incident executive briefings (what happened, impact, mitigation, prevention)

4) Delivery Oversight & Technical Governance (Primary)

  • Provide architectural governance across the delivery lifecycle:
    • Review designs for correctness, security, scalability, and operational readiness
    • Ensure implementation matches the design intent
    • Lead technical checkpoints: design review, pre-change readiness, cutover go/no-go
  • Define quality bars for:
    • Implementation standards and validation checklists
    • Documentation completeness and operational handover
    • Testing requirements (functional, performance, failover)
  • Partner with PMs and Delivery Leads on:
    • Scope definition, sequencing, risk and dependency management
    • Technical change windows and cutover strategy

5) Hands-On Technical Troubleshooting & Escalation Leadership (Primary)

  • Serve as top-tier escalation for complex issues:
    • Routing instability, asymmetry, BGP/OSPF issues, STP/loop events
    • MTU, fragmentation, application timeouts, TLS handshake impacts
    • Packet loss/jitter root causes across WAN/ISP/cloud edges
    • Firewall policy conflicts, NAT issues, segmentation misalignment
  • Lead bridge calls during major incidents; coordinate across teams/vendors:
    • Network, security, compute, storage, application, ISP, cloud providers
  • Use evidence-based troubleshooting:
    • Packet captures, flow analytics, logs/telemetry, traceroutes, synthetic tests
  • Translate technical root cause into executive-ready summaries.

6) Security, Compliance & Risk Integration (Key)

  • Ensure security is built into architecture and operations:
    • Segmentation strategy, least privilege connectivity patterns
    • Secure management plane, MFA/AAA, TACACS/RADIUS
    • Logging, auditability, and compliance controls alignment
  • Align designs with common requirements (as applicable):
    • Zero Trust principles, PCI/HIPAA/SOX/FedRAMP-like control expectations
    • Secure remote access and third-party connectivity patterns

7) Standardization, Automation & Best Practices Enablement

  • Drive adoption of network engineering best practices:
    • Architecture standards, naming conventions, IP schema, BGP communities, QoS strategy
    • Lifecycle standards: EOL/EOS tracking and refresh planning
  • Enable automation and reduce manual work:
    • Infrastructure as Code where practical (Ansible/Terraform)
    • Configuration templates, compliance guardrails, repeatable build pipelines

8) Mentorship, Leadership & Cross-Functional Influence

  • Mentor senior engineers and architects; elevate overall architecture quality.
  • Lead communities of practice; provide technical training and design patterns.
  • Set technical direction across multiple customer programs and internal initiatives.
  • Influence stakeholders without direct authority; drive alignment across sales, delivery, and operations.

You will be successful in this role if you have:

BA/BS degree and 8+ years’ relevant experience OR equivalent combination of education and experience
Master’s degree preferred

Required Hands-On Technical Skills (Typical Expectations)

Networking (deep)

  • Routing/switching: BGP, OSPF, ISIS, VRF, MPLS basics (where relevant)
  • Data center: EVPN/VXLAN (if applicable), leaf-spine designs, multicast (optional)
  • WAN: SD-WAN design, QoS, traffic engineering concepts, ISP integration
  • Services: DDI (DNS/DHCP/IPAM), NTP, PKI/certs impacts on network services
  • Load balancing and application delivery basics

Network Security (strong)

  • Firewalls (policy design, NAT, zones), segmentation models
  • NAC (802.1X), remote access, SASE integration patterns
  • Logging/telemetry integration for security and operations

Cloud & Hybrid (strong)

  • AWS/Azure/GCP networking fundamentals: VPC/VNet, TGW/vWAN, peering, private connectivity
  • Hybrid connectivity: VPN/Direct Connect/ExpressRoute, routing domains, DNS patterns

Operations / Reliability (strong)

  • Monitoring/telemetry, incident/problem/change management
  • Performance engineering: latency/jitter/loss and app experience
  • Documentation: runbooks, SOPs, as-built diagrams, acceptance criteria

Customer-Facing / Executive Skills (critical)

  • Executive storytelling and decision framing
  • Workshops and architecture reviews
  • Conflict resolution, negotiation, risk communication

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