vishnu@lab: ~/about zsh

vishctl whoami --verbose

DevOps · Platform Engineering · AI Infrastructure

I build and run the platforms other teams ship on.

vishnu@lab

user
Vishnu Hari Dadhich
role
Lead, DevOps & Platform @ Material+
host
Singapore (UTC+8)
uptime
9+ years in infrastructure
focus
kubernetes · cloud · gpus
sectors
telecom · government · enterprise

cat README.md

I’m Vishnu, a DevOps and platform lead based in Singapore. Since 2017 I’ve designed, automated, and operated infrastructure for telecom, government, and enterprise teams: Kubernetes, public and private cloud, and more recently GPU clusters for AI inference.

./selected-work mail vishnu open shell
1:impact top

vishctl top --career

Career highlights

uptime

9+ years in infrastructure

traffic

760K+ daily users on a 5G platform

automation

90%+ of an AWS migration automated

rollout

v1.26→1.33 Kubernetes upgrade, zero downtime
2:work kubectl

kubectl get projects -n career -o wide

Some of the systems I have worked on

01 telco

Kubernetes for a 5G core

Provisioned high-throughput, low-latency Kubernetes clusters on VMware for cloud-native network functions serving more than 760,000 daily users.

  • Kubernetes
  • VMware
  • 5G CNF

02 government

Seven-version platform upgrade

Led a multi-cycle Tanzu Kubernetes upgrade from v1.26 to v1.33 with zero downtime for production government workloads.

  • Tanzu
  • Zero downtime
  • Platform ops

03 hybrid-cloud

Private and public cloud platforms

Delivered production Kubernetes on SUSE Harvester with RKE2 and Rancher Prime, and automated more than 90% of an AWS migration.

  • Private cloud
  • Public cloud
  • Kubernetes

04 ai-infra

GPU workloads across clouds

Led infrastructure for vLLM workloads spanning data centres, AWS, OCI, and government cloud, alongside MLOps pipelines on SageMaker.

  • vLLM
  • GPU
  • MLOps
3:man less

man vishnu

About

NAME

vishnu - builds and runs the platforms other teams ship on

SYNOPSIS

vishnu [--kubernetes] [--cloud] [--gpus] [--air-gapped] team...

DESCRIPTION

Most of my work is for telecom, government, media, and enterprise teams in APAC. I have built and upgraded Kubernetes platforms, moved workloads to the cloud, worked in air-gapped environments, and set up infrastructure for AI inference.

PHILOSOPHY

I prefer practical engineering: make the design clear, automate repeatable work, document what matters, and leave the system easier to operate than I found it.

4:log git

git log --graph career

Where I have worked

  1. commit a3f9c1e (HEAD -> main, material-plus)

    Date: May 2019 - Present · Singapore

    Lead - DevOps & Platform @ Material+

    • Advised enterprise teams on platform architecture, turning workload, security, and infrastructure needs into deployment plans.
    • Delivered an air-gapped Kubernetes platform using SUSE Harvester, Rancher, and RKE2, with networking, security, and enterprise storage integrations.
    • Built Kubernetes infrastructure for 5G workloads serving more than 760,000 daily users.
    • Led Tanzu Kubernetes upgrades from v1.26 to v1.33 with zero downtime, including validation and rollback planning.
    • Led GPU infrastructure work for vLLM inference across data centres and cloud environments.
    • Automated platform operations and delivery with Terraform, Ansible, scripting, and GitOps practices.

  2. commit 7d2e0b4 (tag: infogain)

    Date: July 2017 - May 2019 · India

    DevOps Engineer @ Infogain India

    • Built and operated Jenkins pipelines for more than 100 applications.
    • Developed service monitoring tools that improved incident visibility and response.

  3. commit 1b0c7aa (tag: initial-commit)

    Date: 2013 - 2017 · India

    B.Tech, Computer Science @ Uttar Pradesh Technical University

5:toolkit tree

tree -L 2 ~/toolkit

Tools I use

  • platforms/

    • AWS
    • Azure
    • OCI
    • Singapore GCC 2.0
    • VMware
    • SUSE Harvester
    • On-prem

  • kubernetes/

    • EKS
    • AKS
    • RKE2
    • Tanzu
    • Rancher
    • Helm
    • Istio
    • Cilium
    • KEDA
    • Traefik

  • ai-infra/

    • vLLM
    • LiteLLM
    • KubeRay
    • Kubeflow
    • NVIDIA GPUs
    • AMD GPUs
    • Ollama
    • Bedrock

  • automation/

    • Terraform
    • CloudFormation
    • Packer
    • Ansible
    • Bash
    • PowerShell
    • Python

  • delivery/

    • Jenkins
    • Spinnaker
    • Argo CD
    • GitLab CI
    • GitHub Actions
    • SonarQube

  • observability/

    • Prometheus
    • Grafana
    • ELK
    • Fluent Bit
    • New Relic

6 directories, 43 tools

6:certs kubectl

kubectl get certificates -A

Certifications

NAMESPACENAMEREADY
vmwareVMware Certified Advanced Professional - VMware Cloud Foundation VKS✓ True
vmwareVMware Certified Professional - VMware Cloud Foundation Architect✓ True
vmwareVMware Certified VCF Administrator✓ True
suseSUSE Certified Administrator✓ True
suseRancher Manager 2.7 & 2.8 for Rancher Prime✓ True
hashicorpHashiCorp Certified: Terraform Associate✓ True
hashicorpHashiCorp Ambassador, 2025✓ True
cncfCertified Kubernetes Administrator, 2023✓ True
7:notes vishctl

vishctl get notes --sort-by=-date | head -5

Recent notes

I write up what I build and test, including the parts that did not work.

ls -la ~/notes all 27 notes

8:shell interactive

Want to talk?

Happy to talk Kubernetes, platform engineering, GPUs, or whatever you are building. Email is the fastest way to reach me.

Send an email LinkedIn GitHub