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sijo5722-2021/README.md

Sijo George — Senior Platform & Infrastructure Architect

⚡ Building Cloud-Native Platforms at Scale

Designing the invisible infrastructure that makes everything else possible.

LinkedIn Location Focus

🧭 About Me

I'm a Senior Platform & Infrastructure Architect with deep expertise in Kubernetes ecosystem engineering, GitOps, and cloud-native IaC. I design and build the developer platforms, secret management frameworks, and hybrid-cloud automation systems that let engineering teams ship faster and sleep better.

My work sits at the intersection of developer experience and infrastructure reliability — from crafting self-service IDP APIs to architecting disaster recovery systems for mission-critical services.

🏗️ Core Expertise

☁️ Infrastructure & IaC

  • Hybrid-Cloud Kubernetes lifecycle management across on-prem & AWS
  • Terraform module design with Terragrunt DRY wrappers for multi-environment parity
  • Ansible for end-to-end Kubernetes flavor bootstrapping
  • AWS: CloudFront, RDS, S3, IAM OIDC integration

🔐 Secrets & Identity

  • HashiCorp Vault lifecycle automation (init containers, sidecar patterns)
  • External Secrets Operator (ESO) & Vault Config Operator
  • Multi-cluster secret distribution across diverse Kubernetes environments
  • OIDC automation via Zitadel within Crossplane compositions

🧩 Internal Developer Platforms

  • Crossplane Composition Packages for self-service infrastructure APIs
  • Reusable Helm library charts and apps-of-apps ArgoCD patterns
  • Managed deployment of 500+ microservices across cluster grades
  • Groovy/Gradle automation for Helm chart repos and ArgoCD app provisioning

🔄 GitOps & CI/CD

  • ArgoCD GitOps for Kubernetes manifest and Helm chart delivery
  • GitLab API-driven project migration automation (on-prem → AWS)
  • Disaster recovery for Vault, Percona MySQL, and GitLab using GitOps-native workflows

🛠️ Technology Stack

Container & Orchestration

Kubernetes ArgoCD Crossplane Helm

Infrastructure as Code

Terraform Terragrunt Ansible

Cloud & Platforms

AWS GitLab Vault

Secrets & IAM

HashiCorp Vault ESO Zitadel

Databases & Storage

MySQL S3

🚀 Career Highlights

▸ Designed a unified Hybrid-Cloud IaC framework automating Kubernetes lifecycle
  management across on-premise and AWS environments.

▸ Orchestrated delivery of 500+ microservices across multi-grade clusters via
  ArgoCD GitOps with a custom parent Helm library chart.

▸ Engineered a multi-layered secret management framework using Vault + ESO +
  Vault Config Operator for seamless multi-cluster secrets lifecycle.

▸ Built a self-service Internal Developer Platform using Crossplane Composition
  Packages, enabling teams to provision infra stacks via standardized APIs.

▸ Automated GitLab project migration from on-premise to AWS using GitLab APIs —
  zero-downtime, fully scripted.

▸ Architected a unified disaster recovery system for Vault, Percona MySQL, and
  GitLab using GitOps-native workflows.

▸ Led and mentored a DevOps team of 5, supporting org-wide developer enablement.

📈 Experience Timeline

Period Role Company
Jul 2022 – Feb 2024 Senior Architect Envestnet, Inc — Trivandrum, India
Current Platform & Infrastructure Architect Infitx Africa

💡 Philosophy

"Good infrastructure is invisible. Great infrastructure empowers teams to move fast without breaking things."

I believe in platform thinking over ticket-driven ops — building the guardrails, self-service APIs, and automation primitives that let developers own their destiny without compromising on security, reliability, or cost.

Let's connect and build something resilient.

LinkedIn

Pinned Loading

  1. mojaloop/iac-modules mojaloop/iac-modules Public

    reusable iac-modules

    Smarty 13 13

  2. mojaloop/iac-ansible-collection-roles mojaloop/iac-ansible-collection-roles Public

    reusable ansible collection of playbooks and roles

    Jinja 4 7

  3. mojaloop/iac-crossplane-packages mojaloop/iac-crossplane-packages Public

    Library of crossplane composition packages for IAC

    KCL 4 3

  4. mojaloop/control-center-util mojaloop/control-center-util Public

    image for running terraform/ansible modules from dev workstation and gitlab ci

    Shell 2

  5. mojaloop/vault-utils mojaloop/vault-utils Public

    Dockerfile 1