Senior DevOps & Cloud Platform Engineer

9 Years • AWS • Kubernetes • CI/CD • DevSecOps • AI-Assisted Automation

I architect and operate enterprise cloud-native platforms across AWS, Amazon EKS, Infrastructure as Code, observability, cost optimization, DevSecOps, and AI-assisted automation. My work is focused on making delivery faster, production calmer, and platforms easier to govern at scale.

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Arun Selvan G J

Context Highlights

Measurable engineering outcomes across platform modernization, release governance, production reliability, cloud efficiency, and AI-assisted operational leverage.

Tech Stack

Core technologies I use to design, govern, and operate secure, observable, scalable cloud platforms. Tap any logo to view impact.

Experience Timeline

A 9-year progression from Linux and cloud operations into senior platform ownership across reliability, delivery architecture, DevSecOps governance, and AI-assisted operations.

Senior Systems Engineer III / Senior DevOps EngineerNov 2020 - Present

Walmart Global Tech

Chennai, India

Owns senior-level cloud platform engineering across AWS, Kubernetes, CI/CD, observability, DevSecOps, and AI-assisted automation for enterprise production systems.

Release Velocity

+40%

Deployment Time

-50%

MTTR

-35%

Task Throughput

+200%

Enterprise CI/CD and GitOps architectureAmazon EKS platforms scaled through 3x traffic growthAI-assisted DevOps, RAG, and multi-agent automationProduction observability, governance, and incident acceleration
  • Architected enterprise CI/CD and GitOps pipelines using Jenkins and Argo CD, improving release frequency by 40%+ while strengthening release governance.
  • Designed and operated Kubernetes services on Amazon EKS to absorb 3x traffic growth with zero downtime.
  • Reduced cloud infrastructure spend by 30% through rightsizing, autoscaling, and resource governance.
  • Built Infrastructure as Code standards with Terraform and CloudFormation for consistent, governed, and faster environment provisioning.
System Engineer (DevOps / Linux / Cloud Support)Aug 2017 - Nov 2020

Cognizant Technology Solutions

India

Built the operations foundation across AWS cloud support, Linux administration, monitoring, automation, and production incident response that later scaled into senior platform engineering.

Cloud

AWS

Platform

Linux

Delivery Mode

Automation

Support

L2/L3

AWS and Linux production operationsBackup, patching, and user workflow automationPrometheus and Grafana monitoringRunbook standardization and incident reduction
  • Administered and hardened Linux production environments on AWS and automated backup, patching, and user workflows using Bash.
  • Implemented Prometheus and Grafana monitoring for proactive issue detection and faster incident response.
  • Provided L2/L3 support for complex production infrastructure and application incidents in AWS cloud and Linux environments.
  • Standardized recurring operational runbooks to reduce repeated incident patterns and improve recovery consistency.

Contact

Let’s Modernize Delivery and Reliability

Open to senior DevOps, platform engineering, SRE, cloud infrastructure, and AI-enabled operations roles where architecture, reliability, governance, and execution all matter.

Available for Senior RolesDevOps • Platform • SRE