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, India07.2021
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%.
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