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nixvarghese01/README.md

Hi, I'm Nixon Varghese 👋

Senior DevOps & Cloud Engineer · Platform Engineering · SRE · DevSecOps

LinkedIn Medium Email

I build internal developer platforms, secure delivery pipelines and Kubernetes platforms across Azure, AWS and on-prem. I have 11+ years in IT and 8+ in DevOps, starting in pre-sales and customer-facing engineering. I'm based in Dubai.

  • 🧩 Platform engineering: built a Backstage IDP that runs one golden path from a template, through an approval, to infra and app repos, and on to a Dev deploy
  • ☸️ Scale: part of a team running 130+ Azure subscriptions with AKS, managed identities and Argo CD; automated the migration of 100+ repos and pipelines from GitLab to GitHub
  • 🔐 DevSecOps: end-to-end HashiCorp Vault (Raft high availability, auto-unseal, Kubernetes/AppRole/OIDC auth, Agent Injector and CSI driver) plus shift-left scanning in templated CI/CD
  • 📉 SRE: Splunk and SignalFx alerting for applications and infrastructure; MTTD cut 30%, MTTR cut 40%
  • 🤖 AI infrastructure: GPU-enabled Kubernetes and CI/CD for on-prem model deployment; built a hybrid cloud and local LLM chatbot (OpenAI, Gemini, Ollama)

⭐ Featured projects

Internal Developer Platform on Backstage + Azure

azure-backstage-goldenpath: an open-source IDP where one Backstage form creates a GitHub repository, Terraform infrastructure approved in Backstage (enforced by GitHub), CI/CD and a running app on AKS, then shows its live health in the portal. OIDC and Workload Identity instead of secrets, a durable Python orchestrator, verified rollbacks, and the whole platform runs on an Azure Free Trial for about $0.18/hour.

The golden path, end to end

Backstage Azure AKS Terraform GitHub Actions FastAPI Stars

Self-hosted AI agent platform on Kubernetes

k8s-ai-agent-platform: a private AI platform that runs on one laptop, with no cloud, no GPU and no API keys. A LangGraph agent answers from your own documents and scans with cited sources (agentic RAG), using six MCP tool servers, LiteLLM model routing with an evaluation gate, MLOps (Dagster, MLflow, BentoML, Evidently) and OpenTelemetry tracing, all on k3s with Argo CD GitOps and single sign-on.

The agent answering from the user's own notes, with the retrieved passage and its source

Kubernetes LangGraph Ollama MLflow Argo CD Stars

🧩 Golden path I've built

Backstage template → infra sizing → approval → infra repo (Terraform/Terragrunt → Azure) → app repo + CI/CD skeleton → deploy to Dev

Developers get a governed environment and a deployable app from one request, with no infra tickets. The backend is Python APIs integrating with Azure Graph APIs.

💼 Experience

  • Senior DevOps Engineer · Government sector, Dubai · 2026 – now: DevSecOps lead; templated Azure DevOps CI/CD for APIs, CMS, web and mobile apps; Vault; Argo CD; Harbor + Tanzu; GPU Kubernetes
  • DevOps & Cloud Engineer · Core42, Abu Dhabi · 2025: Backstage IDP, 130+ subscriptions, AKS, Terraform/Terragrunt, GitLab → GitHub migration
  • Technical Lead, DevSecOps · Wipro (US Bank) · 2023–24: Azure/AKS migrations, Autosys → Azure Data Factory, Splunk/SignalFx SRE; Inspiring Performance Award
  • Senior Systems Engineer, DevOps · QC Infotech, Dubai · 2015–23
    • DevSecOps: Jenkins CI/CD with security best practices for React and Java e-commerce apps; Docker and Kubernetes; Terraform; Boto3 cost automation
    • Storage and backup: NAS, on-prem and cloud object storage, tiered storage, tape, backup software
    • File transfer: accelerated UDP-based transfer (FileCatalyst SaaS on AWS and Azure)
    • Pre-sales: RFP responses, demos and POCs

🏅 Certifications

CKS CKA AWS DevOps Pro AZ-400 AZ-104 New Relic

🛠️ Stack

skills

Area Tools
Azure VMs · App Service · Blob Storage · Functions · AKS · VNet · Load Balancer · Key Vault · Data Factory
AWS EC2 · S3 · VPC · IAM · Lambda · CloudWatch · EKS · Auto Scaling · CloudTrail · Route 53 · EBS · EFS · KMS
Kubernetes AKS · EKS · GKE · VMware Tanzu · Rancher · Helm · Kustomize · Argo CD · GPU workloads · cert-manager
IaC and platform Terraform · Terragrunt · Ansible · Backstage
CI/CD Azure DevOps (cloud and on-prem) · GitHub Actions · GitLab CI · Jenkins · Harbor · JFrog Artifactory
Containers Docker · Podman · Kaniko
AI and LLM OpenAI · Gemini · Ollama · FastAPI · React
Security SonarQube · Fortify · Black Duck · Synopsys · Trivy · Twistlock · Gitleaks · Spectral · OWASP ZAP · Kyverno
Secrets HashiCorp Vault · Azure Key Vault · AWS Secrets Manager
Observability Splunk · SignalFx · New Relic · Prometheus · Grafana · ELK/EFK · OpenTelemetry
Storage and backup NAS · object storage (on-prem and cloud) · tiered storage · tape · backup software · UDP file transfer (FileCatalyst)
SCM and build Git · GitHub · GitLab · Maven · npm
Languages and OS Python (Boto3) · Bash · Linux · Windows
ITSM and collaboration Jira · ServiceNow · Confluence · Slack · Microsoft Teams · Zoom

📂 Projects

  • azure-backstage-goldenpath: an open-source Internal Developer Platform on Backstage and Azure. One form produces a repository, Terraform infrastructure approved in Backstage, CI/CD and a running app on AKS, with live health and Kubernetes tabs in the portal, OIDC and Workload Identity throughout, and a timed teardown that keeps it inside an Azure Free Trial.
  • k8s-ai-agent-platform: a self-hosted AI agent, RAG and MLOps platform on k3s that runs on a laptop with CPU-only local LLMs. LangGraph agent with MCP tools and cited answers, LiteLLM routing with an evaluation gate, MLflow and BentoML, Phoenix tracing, Authelia SSO and Argo CD GitOps.
  • hybrid-chatbot: a hybrid AI chatbot with a FastAPI router that sends each prompt to OpenAI or Gemini in the cloud, or to a local Ollama model. Private prompts stay local, the router falls back automatically when a cloud model fails, and it has a React UI and runs as a full Podman container stack.
  • sentiment-microservices-gke-cicd: three microservices (React, Spring Boot, Flask) with GitHub Actions CI/CD to GKE. It covers SonarQube scanning, Docker Hub images, Kustomize stage and prod overlays, HPA, cert-manager TLS and tag-based production releases.
  • aws-ecs-fargate-terraform: Terraform for a highly available ECS Fargate service behind an ALB across two AZs, with IAM roles, networking, a one-command deploy script and an architecture diagram generated as code.
  • sentiment-frontend-devsecops-kyverno: Kyverno admission policies (signed images only, registry allow-lists, label and namespace rules) plus a hardened container image, deployed with Kustomize.

✍️ Writing

Azure data migration strategies · AWS CLI commands for DevOps interviews · Managed file transfer in the cloud · Cost-effective CDN options

Popular repositories Loading

  1. k8s-ai-agent-platform k8s-ai-agent-platform Public

    Private, self-hosted AI platform that runs on one laptop (no cloud, no GPU, no API keys): agentic RAG with citations, LangGraph + MCP tools, LiteLLM routing with an evaluation gate, MLOps (Dagster,…

    Python 9 5

  2. aws-automation-boto3-terraform aws-automation-boto3-terraform Public

    AWS automation with Python (boto3), Terraform and Jenkins pipelines

    Python 1

  3. prometheus-otel-demo prometheus-otel-demo Public

    Prometheus sample app and OpenTelemetry Collector on Kubernetes

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  4. azure-backstage-goldenpath azure-backstage-goldenpath Public

    Internal Developer Platform on Backstage + Azure: one form creates a repo, Terraform infra (approved in Backstage), CI/CD and a running app on AKS, with live health in the portal. OIDC, Workload Id…

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  5. sentiment-analysis-frontend sentiment-analysis-frontend Public

    React frontend for a sentiment-analysis app, with Docker, Jenkins and Knative deployment

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  6. sentiment-frontend-kustomize sentiment-frontend-kustomize Public

    Kustomize manifests for the sentiment-analysis frontend: HPA, ingress, RBAC, cert-manager