GKGulshan Kumar
Open to opportunities

Gulshan Kumar
DevOps Engineer

Building resilient cloud infrastructure on AWS · Zero-downtime deployments · 2+ years shipping production-grade DevOps at Onsurity Technologies.

2+
Years Experience
99.9%
Uptime Maintained
50%
CI/CD Runtime Cut
20%
Cloud Cost Savings
SCROLL
☁️AWS
Kubernetes
🐳Docker
⚙️GitHub Actions
📦Terraform
📊Prometheus
🔍Grafana
🔒DevSecOps

Latest Articles

In-depth write-ups on DevOps practices, cloud architecture, and lessons from production.

Kubernetes4 min read

Kubernetes Simulation from Scratch: Learn Kubernetes Internals

Stop just using Kubernetes. Start understanding it. I built a production-style Kubernetes simulation from scratch to explore real-world bare-metal setups.

1 Apr 2026Read more →
AI Agents3 min read

Building a Self-Healing Docker Agent with Ollama

If you don’t have access to paid coding agents, try running models locally using Ollama. Here is how I built a self-healing container agent with local LLMs.

25 Mar 2026Read more →
CI/CD8 min read

Blue-Green Deployments: Achieving Zero Downtime in Production

A deep dive into Blue-Green deployment strategy — how it works, how I implemented it at Onsurity to achieve zero-downtime releases, and the pitfalls to avoid.

15 Mar 2025Read more →
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Building something cloud-native?

Whether it's infrastructure automation, CI/CD pipelines, or Kubernetes migrations — let's talk.

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