Hello, I'm
RANJUJOHN
Infrastructure architect with 20+ years of experience building and scaling production systems. From bare-metal Linux to Kubernetes clusters and cloud-native platforms.
hello@ranjujohn.com
Cloud Architect
K8s Specialist
Linux Expert
Expertise
What I Build
Kubernetes & Containers
Production-grade K8s cluster design, Helm charts, custom operators, service mesh architecture, and container orchestration at massive scale.
Cloud Architecture
Multi-cloud on AWS, GCP, Azure. Terraform IaC, cost optimization, and HA design.
Linux & Systems
Deep Linux — kernel tuning, security hardening, performance, and large-scale automation.
Networking & Security
Network design, zero-trust architectures, firewalls, VPNs, load balancing, and compliance.
Observability
Monitoring, logging, tracing, and alerting. Full-stack visibility into distributed systems.
Automation & CI/CD
GitOps workflows, automated pipelines, infrastructure as code — from commit to production with confidence. Jenkins, GitHub Actions, ArgoCD, and everything in between.
Journey
Experience
Present
Cloud & Infrastructure Architect
Designing the Future
Leading cloud-native transformations, designing K8s platforms, and building scalable infrastructure for production workloads.
2015+
DevOps & Container Specialist
Cloud Migration Era
Pioneered container adoption, built CI/CD pipelines, migrated legacy workloads to cloud-native architectures.
2008+
Senior Systems Engineer
Enterprise Infrastructure
Managed large-scale Linux server farms, virtualization, storage, and network infrastructure.
~2003
Linux System Administrator
Where It All Began
Started with Linux, shell scripting, and building reliable infrastructure from the ground up.
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