Balakumar Rv

About Balakumar Rv

Senior DevSecOps Engineer with 9.6+ years of experience building scalable, secure, and automated delivery platforms across enterprise and cloud-native environments.I specialize in designing and implementing end-to-end CI/CD pipelines, Infrastructure as Code (Terraform), Kubernetes (AKS), and DevSecOps practices on Microsoft Azure. I focus on improving deployment reliability, security enforcement, and developer productivity.What I Work On:• Designing Azure infrastructure using Terraform (IaC)• Managing production-grade AKS clusters and microservices deployments• Building and optimizing CI/CD pipelines using GitHub Actions & Jenkins• Integrating security tools (SonarQube, CodeQL, Azure Defender) into pipelines• Automating Android & iOS mobile build and release pipelines• Enabling zero-downtime deployments in multi-environment setupsImpact Delivered:• Improved CI/CD efficiency by ~35% through pipeline modernization• Reduced production vulnerabilities by ~70% via DevSecOps integration• Delivered secure, repeatable, multi-environment cloud deploymentsCurrently working as Senior DevSecOps Engineer at Cognizant (Optum / UnitedHealth Group). Open to challenging DevSecOps and Platform Engineering roles in India.

Experience

1. Senior Associate - Projects

   Cognizant

   Sep 2021 — Present · Chennai, IN

   Leading enterprise-scale Azure DevSecOps and Cloud Architecture transformation initiatives across multi-region environments. Cloud & Network Architecture ModernizationLed migration of Azure Firewall from single-tenant to multi-tenant hub-spoke architecture, improving workload isolation and optimizing cost by ~25%.Designed Zero Trust network model using Azure Firewall, UDRs, NSGs, and segmented subnets.Implemented fully private Azure architecture using Private Endpoints and Private DNS Zones, eliminating public exposure of PaaS services.Enabled secure ACR → AKS and ACR → App Service communication via VNet integration and private networking.Reduced external attack surface by ~80%. Federated API ManagementSpearheaded migration to federated Azure API Management model to support decentralized domain-based API governance.Designed multi-region APIM integrated with Azure Front Door and Application Gateway.Implemented OAuth2, JWT validation, rate limiting, and centralized reusable policy templates.Reduced API onboarding time by 30%. CI/CD & Platform EngineeringModernized CI/CD by migrating Jenkins pipelines to GitHub Actions (~35% faster deployments).Developed reusable Terraform modules for secure multi-environment provisioning.Designed production-grade AKS clusters with autoscaling, internal load balancers, and zero-downtime deployments. DevSecOps & GovernanceIntegrated Azure Defender, CodeQL, SonarQube, and container image scanning into pipelines.Reduced production vulnerabilities by ~70%.Act as DevSecOps SPOC driving governance, platform standards, and cross-team enablement. Mobile CI/CDAutomated Android & iOS build and release pipelines including Play Store and App Store deployments.Reduced manual mobile release effort by ~50%.

Education

• PSNA college of engineering

  Bachelor of Engineering - BE, Computer Science

  2012 — 2016