Shridhar Jigalmadi

Results-driven System Administrator with expertise in Linux administration and automation. Achieved a 20% increase in system reliability through hardening and performance tuning. Proficient in AWS and CI/CD pipelines, utilizing Jenkins and Git for streamlined operations. Strong problem-solving skills and a commitment to continuous improvement drive operational excellence.

• Improved System Uptime, Enhanced system reliability by 20% through effective performance tuning and system hardening on Linux environments.

SentinelOne endpoint security deployment

• Deployed and configured SentinelOne endpoint protection across enterprise Linux environments to enhance security posture and reduce threat exposure
• Standardized agent installation and upgrade processes, improving endpoint coverage, and reducing manual effort
• Collaborated with security teams to troubleshoot integration and performance issues, ensuring continuous protection and compliance

Linux OS auto-patching – Jenkins + Ansible

• Designed and implemented an automated patch management pipeline using Jenkins and Ansible for production and development servers
• Developed reusable Ansible playbooks to reduce patching time across large RHEL server fleets
• Built-in rollback and reporting mechanisms increase patch compliance visibility and reduce downtime

Privileged Access Management (PAM) implementation – Project Lead

• Leading a PAM initiative to enhance access control and user privilege security for critical Linux systems
• Enforce privileged user policies, audit logging, and compliance with internal and external standards
• Coordinate with security architects and DevOps to integrate PAM into existing infrastructure, improving access provisioning efficiency

SAP retail infrastructure on AWS EC2

• Managed and optimized AWS EC2 instances supporting SAP Retail environments, ensuring scalability and availability
• Led provisioning, monitoring, and tuning activities across cloud-hosted SAP infrastructure
• Partnered with SAP BASIS and DevOps teams to automate deployment tasks and accelerate system updates

RHEL OS Upgrade Project

• Planned and executed end-to-end RHEL version upgrades across multiple environments
• Ensured compliance, system stability, and security for business-critical Linux servers
• Minimized downtime and improved infrastructure reliability post-upgrade.

• Red Hat Certified System Administrator (RHCSA)
  Credential ID: 240-163253
  Validated expertise in managing RHEL environments, performing system hardening, user administration, and troubleshooting.
• AWS Certified Solutions Architect – Associate
  Credential ID: AWS05242077
  Demonstrated skills in designing scalable cloud solutions using AWS services. Used AWS CLI to automate S3 uploads, policy updates, and static website hosting. Deployment scripts hosted on GitHub.
• CI/CD Pipeline on AWS using Jenkins (Project-Based Credential)
  Installed and configured Jenkins on AWS EC2 Linux instance, created freestyle jobs for build/test automation, and integrated Git and shell scripts to demonstrate full CI/CD pipeline in a cloud environment.

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