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virtualsachin/README.md
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Hi, I'm Sachin Kumar Sharma 👋

Associate Director — Enterprise Cloud & AI Advisory 18+ years. WiMAX rooftops in Delhi → Two Tier-3 DCs built from dust → VMware SDDC → Azure Landing Zones → Agentic AI on the edge. Building "Digital Cathedrals" of code, cloud, and cognition.

Twitter/X Portfolio Email


🧭 The Journey

In 2006 I was selling credit cards door-to-door. Literally. Not metaphorically. I needed to become someone worth choosing, so I moved alone to Jaipur — call center nights, English class mornings, CCNA labs at midnight.

2009 → Iron Age: Climbing Delhi rooftops in 45°C heat aligning WiMAX antennas by hand (-82 dBm / 12 dB SNR). Learning BGP the hard way. 2011 → The DC Era: Built 2 Tier-3 Data Centers from empty warehouses. PAC thermal management, MP-BGP IPv6, Linux P2V migrations. Nobody taught me how. 2014 → Security Layer: Cisco ASA → Palo Alto App-ID. iRules on F5 LTM. Netmiko automation. 2017 → SDDC & SDN: VMware NSX, HCX live migrations, GENEVE vs VXLAN debates at 2am, Arista OVSDB bridges. 2023 → Now: Azure Enterprise Landing Zones + Agentic AI. Stateful circuit breakers. Vector RAG. Edge inference on Cloudflare Workers AI.

Complexity is the Enemy. Always.


📊 Career Metrics (What Actually Matters)

Metric Value
⏱️ Years in infrastructure 18+
🏢 Employers across 3 eras 6 (HCL → Spectranet → Net4 → Wipro → IBM → NTT Data → Now)
🏗️ Tier-3 DCs built from scratch 2
☁️ VMs migrated to cloud 1,000s (HCX bulk live, zero downtime)
🤖 AI agents in production 3 (Digital Twin, Circuit Breaker, Cost Router)
🌐 BGP ASNs configured More than I can count. Fewer incidents than you'd expect.

💻 The Tech Stack

Cloud & Infrastructure Azure Terraform Ansible VMware Kubernetes Cloudflare

Languages & AI Python TypeScript GitHub Actions

Security & Networking Cisco Palo Alto


🛠️ Featured Open Source Repositories

  • agentic-circuit-breaker: Zero-dependency TypeScript stateful circuit breaker pattern engineered for Agentic AI workflows and LLM API routing. No deps. No drama.
  • 💰 llm-cost-router: BGP-inspired Local Preference routing engine for multi-agent LLM cost optimization and cascading model fallback.
  • 🏗️ VMware-SDDC-LAB: Infrastructure-as-code Ansible automation pipeline for deploying a full nested VMware SDDC & NSX-T lab. The playbook I wish existed in 2017.

🌐 Links & Contact

🌐 Digital Twin Portfolio 🐦 Twitter / X ✉️ Email
virtualsach.in @virtualSachIN sachin@virtualsach.in

Architecture and decisions: mine. Debugging sessions at odd hours: mine. AI assistance: structure, syntax, first draft. — Sachin

Pinned Loading

  1. agentic-circuit-breaker agentic-circuit-breaker Public

    Zero-dependency TypeScript stateful circuit breaker pattern engineered for Agentic AI workflows and LLM routing.

    TypeScript

  2. llm-cost-router llm-cost-router Public

    BGP-inspired Local Preference routing engine for multi-agent LLM cost optimization and cascading model fallback.

    TypeScript

  3. VMware-SDDC-LAB VMware-SDDC-LAB Public

    Infrastructure-as-code Ansible automation playbook for deploying a full nested VMware SDDC & NSX-T lab.

    Python

  4. virtualsach/SDDC-NSXT-vLAB virtualsach/SDDC-NSXT-vLAB Public

    Ansible Playbook to deploy a complete nested lab environment for NSXT, its includes Physical ESXi, vCenter, Nested ESXis and NSXT deployments.

    Python