ARJUN KUMAR

• Drove adoption of Docker, Kubernetes, Rancher, Harbor, Helm, Argo CD, and MetalLB, facilitating transition of legacy applications to containerized deployment and orchestration.
• Moved build and release pipelines from Jenkins to Azure DevOps and created reusable YAML templates for multi-module Maven projects, standardizing releases and reducing pipeline maintenance effort.
• Added quality, security, and artifact management to CI/CD by integrating SonarQube, Mend security scans, and Nexus into Azure DevOps pipelines.
• Replaced manual, error-prone deployments with custom Ansible playbooks and component-specific roles, cutting deployment time from 4 hours to 1 hour and creating reusable automation for faster, lower-cost environment provisioning.
• Developed VM cost-optimization pipeline that automatically powers down idle VMs and restarts them on demand, maintaining deployment availability while optimizing infrastructure costs.
• Supported Linux-based middleware and application platforms, including Apache HTTP Server, Tomcat, and Java applications.
• Progressed from junior engineer to devops lead, taking on greater technical and leadership responsibilities.
• Received 5+ quarterly and monthly impact awards for contributions to project success, technical delivery, and customer value.

Led on-site customer go-live missions across 6 countries, ensuring successful production deployments in diverse customer environments.

• Administered OpenLDAP with replication, failover configuration, and directory management, facilitating secure enterprise authentication.
• Administered Oracle WebLogic and middleware platforms, improving integration workflows and maintaining high-availability operations.
• Managed deployments for enterprise Java applications using standardized runbooks across Linux production environments.
• Collaborated with infrastructure and application teams to troubleshoot production issues, enhancing system stability and uptime.
• Supported enterprise financial applications for SBI Credit Card and GE, ensuring reliability of large-scale middleware and transaction-driven systems.

• Administered Linux virtual machines, overseeing OS setup, configuration, and routine server administration to ensure system reliability.
• Managed VM provisioning and live migrations, and improving resource allocation across hypervisor environments.
• Installed and configured MySQL databases, overseeing backups, restores, and cron-based jobs to maintain data integrity.
• Deployed and supported enterprise banking applications across multiple customer environments during critical production hours, ensuring high availability and performance.

• Handled Linux administration and troubleshooting to resolve technical issues in a 24x7 support environment.
• Supported shared hosting, VPS, and Windows/Linux environments to ensure reliable service delivery using cPanel, WHM, and Parallels Plesk.
• Monitored server availability and managed infrastructure alerts to maintain system performance using Nagios.