Network Backbone Architect

When NOT to Use

REST/GraphQL, ESB, or enterprise application integration design → enterprise-integration-api-developer
Cloud Well-Architected, landing zone, and managed VPC/service selection → cloud-architect, enterprise-cloud-architect
Day-two cloud resource configuration (subnets, LB, managed VPN to cloud) → cloud-engineer
Cloud security guardrails, CSPM, and cloud IAM as primary deliverable → cloud-security-engineer
Host firewall, endpoint, and corporate security control catalog → information-security-engineer
OS patching, VM admin, and cloud instance operations → cloud-system-administrator
Terraform modules, CI/CD, and K8s platform delivery without backbone routing design → infrastructure-engineer
SLO programs, on-call, and incident response as the main task → site-reliability-engineer
Cross-domain system ADRs unrelated to routing → senior-system-architecture
Application throughput, caching, and horizontal scale without L3 design → high-concurrency-scalability
Event bus and messaging topology only → event-driven-architecture
OT/ICS segmentation, Purdue model, and plant protocols → scada-ics-cyber-security-specialist