Infrastructure Engineer · Tata Consultancy Services

Hariharan Ravi

Engineering Intelligent Cloud & Network Infrastructure

Cisroute: A platform where networking, cloud engineering, infrastructure automation, and technical storytelling come together.

NetworkingPythonAzureTerraformDevOpsGenerative AIBasics of C and C++
Explore My Journey Engineering Stories

What I Believe

Engineering principles, not a list of skills

01

Networking First

Networking is the invisible foundation of every cloud platform. Everything depends on reliable communication between systems.

02

Automation is key for a reliable System

Automation should remove manual effort and inconsistency — not add new layers of complexity to operate.

03

Customer First

Customer experience is the best measure of success. The way we convey our thoughts and give a good experience to the customers is great measureof selling the product

04

Design for Scale

Every architecture should still make sense five years later. Thinking forward is necessary for building scalable systems (Core - Distribution - Access)

Engineering Stories

Not projects — case studies in engineering thinking

Every story explains why it existed, how it was architected, and the business value it created.

Engineering Journey

A decade-long route, one node at a time

Milestones of learning and growth — not a list of jobs.

  • Pre-2018

    Early Curiosity

    A growing fascination with how computers talk to each other. Games like watchdogs played a huge role

  • 2018–2020

    Indian Excellent School, Sharjah

    Science with Computer Studies — the technical curiosity took root.

  • 2020–2024

    SASTRA Deemed University

    B.Tech Computer Science. Computer Networks became the strongest area of interest.

  • University

    Cisco Campus Ambassador

    Engaging communities and sharpening communication beyond the classroom.

  • University

    Outstanding Grade

    Subnetting, TCP/UDP, OSI Model, DHCP, CSMA-CD, CSMA CA, etc

  • Aug 2024

    Tata Consultancy Services

    Development & DevOps Engineer on the Microsoft Azure business unit.

  • Now

    Azure & Terraform Engineering

    Reusable IaC, enterprise networking, cloud governance, and customer demonstrations.

  • Now

    Generative AI

    Integrating GPT-4o into infrastructure governance workflows.

  • Today

    CCNA - CIsco Certified Network Associate

    Proud accomplishment from my side Self Sponsored passion towards networks made me do it- Routing VLANS, OSPF, VXLAN, SDN, Overlay, Underlay

  • Today

    Building Cisroute

    Documenting the networking journey stories, labs, and knowledge.

  • Next

    The Journey Continues

    CCNP, Azure Solutions Architect, Cisco Live, and beyond.

Read the full journey

Technical Expertise

Everything connects back to networking

No progress bars. Just the domains where engineering decisions get made.

Networking

Routing & SwitchingTCP/IPOSPFSubnettingVLANsTroubleshooting

Microsoft Azure

Virtual NetworksVPN GatewayAzure BastionNAT GatewayVNet PeeringNSGs

Infrastructure as Code

TerraformReusable ModulesLanding ZonesProvisioningValidation

DevOps

Azure DevOpsCI/CDGitInfrastructure PipelinesPolicy Compliance

Security

Zero TrustRBACLeast PrivilegeAzure PolicyNetwork Segmentation

Generative AI

Azure OpenAIGPT-4oREST APIsPrompt EngineeringEnterprise AI

Impact

Engineering measured in business outcomes

Every number reflects a decision, an architecture, and a reason it mattered.

40%

Infrastructure cost optimization

Removed redundant NAT Gateways and consolidated Azure Bastion into multi-session environments.

₹3L

Monthly Azure savings

Sustained monthly reduction from eliminating infrastructure waste.

50%

Deployment acceleration

Reusable Terraform modules standardized and sped up provisioning.

4

Enterprise Terraform products

Reusable IaC products supporting internal teams and customer deployments.

30%

Semantic model reconstruction

Azure OpenAI reduced migration effort in the Power BI Migration Assistant.