Summary
Overview
Work History
Education
Skills
Personal Projects
Websites
Languages
Certification
Accomplishments
Timeline
Generic
DHANANJAYAN A

DHANANJAYAN A

Chennai

Summary

Results-driven Cloud DevOps Engineer with 3 years of experience in Retail and Banking domains, specializing in cloud infrastructure optimization, automation, and security. Proficient in Azure, Kubernetes, Istio Service Mesh, Helm, and CI/CD pipelines (Jenkins, GitLab CI/CD). Successfully streamlined deployments and improved system reliability, reducing downtime by 30% and cloud costs by 20%. Passionate about leveraging cutting-edge technologies to deliver scalable, secure, and cost-efficient solutions.

Overview

3
3
years of professional experience
1
1
Certification

Work History

Cloud DevOps Engineer

UBS
Pune
10.2024 - Current
  • Company Overview: UBS is a global financial services company, providing wealth management, asset management, and investment banking services.
  • Password Rotation Automation: Enhanced a shell script with test cases, reducing unnecessary executions by 40%, and saving 20+ hours per month for application teams during critical updates.
  • Azure Kubernetes Services (AKS) Migration: Migrated 15 standalone AKS clusters to a shared model using Istio Service Mesh and Helm, reducing Azure costs by 25% to 30%. Automated manifest parsing and Helm chart generation, cutting new application onboarding time by 50%.
  • Azure Workload Identity Implementation: Developed automation scripts for Azure Workload Identity, eliminating service principal secrets, and reducing credential leakage risk by 100%. Simplified identity management for 10 or more applications, decreasing manual configuration time by 60%.
  • Ingress to Virtual Service Automation: Built a Python-based automation tool to convert Kubernetes Ingress objects to Istio Virtual Services, reducing manual configuration efforts by 70%.

Cloud DevOps Engineer

Tata Consultancy Services
Chennai
02.2022 - 10.2024
  • Cloud Infrastructure & Cost Optimization: Designed and maintained cloud architecture using Azure CDN, Front Door, App Gateway, AKS, PostgreSQL, VMs, and Storage, optimizing costs by 15%.
  • CI/CD Pipeline Development: Built CI/CD pipelines with Jenkins, GitLab CI/CD, and Argo CD, integrating SonarQube and Trivy for security scanning, improving deployment consistency, and rollback efficiency by 40%.
  • Containerization and Microservices: Deployed Django, AI chatbots, Node.js, and Java applications using Docker and Kubernetes, improving scalability by 40%.
  • Monitoring and Security: Configured Azure Monitor, Log Analytics, and Application Insights for real-time monitoring, reducing incident resolution time by 25%. Integrated Prometheus and Grafana for proactive alerts, cutting downtime by 30%.
  • Infrastructure Automation: Automated provisioning of 40+ VM instances with Terraform and ARM Templates, reducing infrastructure setup time by 50%. Managed Linux (Ubuntu, RHEL), automating system administration tasks with Ansible and Bash, cutting manual effort by 50%.
  • Cloud Administration (AWS and Azure): Managed 10-20 EC2 instances, S3, and IAM roles, improving system uptime by 15% and reducing cloud costs by 10%.
  • Ansible & Deployment Automation: Leveraged Ansible for configuration management, reducing manual intervention by 30%, and improving deployment cycles by 20%.
  • Release Management & CI/CD Optimization: Automated releases using GitLab CI/CD, Jenkins, and Docker, cutting deployment time by 40%, and minimizing downtime by 30%.

Education

Bachelor of Engineering - Mechanical

S. A. Engineering College
Chennai, India
07.2021

Skills

  • Microsoft Azure
  • AWS
  • Docker
  • Kubernetes
  • Helm
  • Istio Service Mesh
  • Jenkins
  • GitLab CI/CD
  • Argo CD
  • Terraform
  • ARM Templates
  • Ansible
  • Bash
  • Python
  • Go
  • Prometheus
  • Grafana
  • Azure Monitor
  • System administration

Personal Projects

  • Kubernetes & Argo CD Deployment:

    Tech Stack: Kubernetes, Argo CD, Helm, Docker, GitHub Actions, Terraform

    Deployed a multi-tier app on Kubernetes using Argo CD for automated deployments.
    Managed infrastructure with Terraform and application deployments with Helm charts.
    Set up CI/CD pipelines with GitHub Actions for seamless automation.

    Achievements:

    Reduced manual deployment efforts by 60%.
    Improved scalability and reliability of the app using Kubernetes.
  • Secure CI/CD Pipeline for Containers:

    Tech Stack: Docker, GitLab CI/CD, Trivy, SonarQube, Kubernetes

    Built a CI/CD pipeline in GitLab CI/CD to automate testing and deployments.
    Integrated Trivy for container security scanning and SonarQube for code quality.
    Deployed applications on Kubernetes using Helm charts.

    Achievements:

    Reduced security vulnerabilities by 70%.
    Increased deployment efficiency by 40%.

Websites

Languages

Tamil
First Language
English
Intermediate (B1)
B1

Certification

  • Microsoft Certified: Azure Fundamentals (AZ-900)
  • Microsoft Certified: Azure Administrator Associate (AZ-104)

Accomplishments

  • Reduced Azure billing costs by 25-30% through AKS cluster optimization and migration.
  • Improved password rotation process efficiency by 40%, saving critical update time for application teams.
  • Enhanced security by implementing Azure Workload Identity, eliminating credential leakage risks by 100%.
  • Automated deployment processes, reducing onboarding time for new applications by 50%.
  • Developed a Python-based automation script reducing manual Kubernetes configuration efforts by 70%.

Timeline

Cloud DevOps Engineer

UBS
10.2024 - Current

Cloud DevOps Engineer

Tata Consultancy Services
02.2022 - 10.2024

Bachelor of Engineering - Mechanical

S. A. Engineering College

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DHANANJAYAN A