Chandra Sekhar S

About Chandra Sekhar S

IT professional with 5+ years of expertise in cloud engineering, and DevOps skilled in…

Experience

1. Devops Engineer

   Fiserv

   Jan 2025 — Present

   Designed, deployed, and maintained Linux-based Azure Virtual Machines (VMs) to support scalable, high-availability financial applications. Implemented Infrastructure as Code (IaC) using Terraform for automated provisioning of cloud infrastructure across multiple environments. Developed Bash scripts to automate repetitive administrative tasks, reducing manual intervention by 35%. Configured BGP routing, Apache web servers, and Network Security Groups (NSGs) to enhance network security, performance, and routing efficiency. Managed site-to-site VPN connections and hybrid cloud architectures for secure connectivity between on-premises and Azure environments. Built and maintained CI/CD pipelines using Jenkins, GitHub Actions, GitLab CI/CD, and Azure DevOps to automate build, test, and deployment workflows. Integrated automated testing into deployment pipelines to ensure code quality and reduce post-deployment incidents. Configured Role-Based Access Control (RBAC) policies in Azure to enforce least privilege of access across environments. Managed Azure API Management (APIM) for API security, authentication, rate limiting, and real-time API monitoring. Streamlined deployment automation for containerized applications using Docker, Apache Tomcat, and Azure Kubernetes Service (AKS), ensuring scalable and resilient workloads. Adopted GitOps principles for version-controlled infrastructure changes, improving traceability and rollback capabilities. Maintained Azure databases (SQL Database, Cosmos DB, PostgreSQL) for high availability, performance tuning, and disaster recovery readiness. Implemented configuration management best practices, version-controlled runbooks, and incident response automation to improve operational efficiency. Collaborated with cross-functional teams using Agile methodologies, driving DevOps best practices to accelerate release cycles and reduce downtime.