BRISTON K SUNNY

Azure (LC360 Application):

• Managed and deployed the LC360 application on Azure Virtual Machines.
• Collaborated with the MSSQL team for database configuration, backups, and maintenance.
• Coordinated with the Windows team for VM provisioning, patching, and OS-level support.
• Performed deployments across UAT, Test, and Production environments, ensuring stability and minimal downtime.
• Created deployment documentation and runbooks for repeatable operational tasks.

AWS (Java Application on EKS):

• Deployed and managed Java microservices applications on AWS EKS, using Helm charts for standardized deployments.
• Designed and implemented CI/CD pipelines in Jenkins for UAT, Test, Pre-Prod, and Prod environments.
• Integrated SonarQube with Jenkins to ensure code quality through automated static code analysis.
• Provisioned and maintained self-hosted GitHub Action runners, improving workflow execution reliability.
• Migrated pipelines from Jenkins to GitHub Actions, enabling GitOps deployments with Helm + ArgoCD.
• Worked alongside the infra team managing Kubernetes clusters, gaining practical knowledge of Terraform provisioning.
• Implemented Dynatrace monitoring to track application performance, optimize resources, and troubleshoot production issues.

• Infrastructure automation for OS customization using Ansible for the creation of VMware templates for node templates in rancher for K8's cluster environment
• Infrastructure based automation using Ansible roles and handlers for VMware Environment.
• Security hardening of Linux systems using CIS benchmark with developing various roles with respect to the environment suing ansible playbooks and roles.
• Creating and managing container based solution for Log forwarding using docker and Kubernetes.
• Visualized the logs using ELK stack.
• Creation of K8s cluster using Rackn and Rancher

• Linux User administration.
• Provide L2 and L3 support for Linux VMS.
• Package Repository management and Patch management of Redhat Linux Vms using Redhat Satellite for RHEL systems.
• Prepared technical segregation Document for the Linux.
• AD integration using SSSD and Windows Drive mapping in the Citrix environment through SSSD, Autofs and kerberos in RHEL 7.
• Installed and configured ELK stack, Ossec server,OSSIM in Centos 7.
• Logical Volume Management (LVM) for linux machines,storage management, Network file management using NFS.
• Installed and configured Icinga Monitoring agent in Linux servers.
• Part of Application migration of Linux physical servers(ORACLE RAC).
• Installed and configured Linux VDA agent in RHEL VMs in Citrix Environment.
• Configured Icinga server and client (Statellite server HA configuration)
• Deployment of Icinga agents using ansible playbooks.

• Managed Staging and Production Servers on RHEL to ensure operational efficiency.
• Configured and managed DNS and SQUID services for streamlined connectivity.
• Monitored systems using Nagios to identify and resolve issues proactively.
• Hosted Java and PHP applications leveraging Apache, Nginx, and Tomcat servers.
• Oversaw entire hosting environment for Kerala state elections and entrance exam results.
• Compiled reports detailing system performance, costs, and downtime incidents.
• Planned and executed upgrades to system hardware and software to enhance performance.

• Configured and troubleshot servers across AWS and additional platforms.
• Executed disaster recovery plans, addressing security vulnerabilities and managing access levels.
• Identified and recommended enhancements for email applications and webpage development.
• Documented solutions for recurring issues and requests internally and externally.
• Conducted root cause analyses on repeated technical difficulties.
• Optimised performance through advanced tuning techniques.
• Migrated websites and applications to new and existing cloud servers.
• Managed ELK clusters for search optimisation and log monitoring using Beats.

• Provided support for client queries through ticketing systems like WHMCS and HOSTBILL.
• Installed, configured, and managed operating systems including RHEL and Ubuntu.
• Upgraded OS, kernel, and additional packages using RPM and YUM.
• Managed users using command line utilities and SUDO permissions.
• Maintained network and system security to protect sensitive data.
• Administered web servers such as Apache HTTP Server and Nginx, ensuring optimal performance.
• Configured services like SSH, FTP, SAMBA, DNS, DHCP, and MAIL for effective communication.
• Monitored server performance using tools like NAGIOS and CENTREON.

• Managed staging and production servers on RHEL to ensure optimal performance.
• Configured and managed DNS and SQUID services for efficient network communication.
• Monitored systems using Nagios to identify and resolve issues proactively.