D Vignesh
BCA graduate who traced computing back to Ada Lovelace before touching a terminal. Hardware tinkerer turned DevOps engineer — comfortable at every layer from NVMe disks to Kubernetes clusters.
Trend — React E-Commerce Frontend
"Production-grade. End-to-end. Fully deployed."
What Was Built
- High-performance React + Vite frontend, production-optimized
- Product discovery, wishlist, and secure checkout via Razorpay
- Code-splitting and asset hashing for maximum load performance
- Containerized with Docker, served via Nginx in EKS cluster
- Deployed using Terraform IaC + Helm + full CI/CD via Jenkins
- Full observability: Prometheus metrics + Grafana dashboards
Jenkins couldn't find Docker during pipeline execution — Jenkins user lacked Docker socket permissions, causing all containerized build steps to fail.
Added Jenkins user to the Docker group, corrected Docker socket permissions, restarted Jenkins service, and updated Jenkinsfile with the full Docker binary path. Pipeline succeeded on the next run.
Technical Arsenal
More Projects
End-to-end three-tier web application with full CI/CD automation on AWS.
Dockerized Node.js app deployed on EKS via AWS-native CI/CD pipeline.
Complete observability stack with Prometheus metrics and Grafana dashboards.
War Stories
Before DevOps, before cloud — there was a laptop, an external SSD, and a decision that felt irreversible. Most people would have pulled the plug. I didn't. It worked. Staying calm when the system is on fire is half the job.
My first Jenkins pipeline failed 24 times. Each failure was a different error. I fixed every single one. I had 24 reasons to never fear a red build again.
My Journey
- Deep-dived PC architecture: CPU cores, threads, GPU pipelines, NVMe vs HDD mechanics
- Built a PC from scratch — component selection, assembly, POST debugging
- Studied Ada Lovelace → Assembly → COBOL → C → Python
- Distro-hopped through Fedora, Debian, CentOS, Kali Linux
- Cloned a complete Ubuntu installation across laptops via NVMe transfer
- Learned GRUB configs, secure boot, VMware, hypervisors
- Completed full DevOps engineering course at GUVI
- Built 4 end-to-end production projects from scratch
- Deployed on AWS infrastructure: EC2, EKS, ECR, ALB, VPC
- Full observability stack: Prometheus + Grafana + Uptime Kuma