• Administered critical Linux-based enterprise applications, ensuring smooth operation and compliance through regular security patching and performance tuning.• Expertly performed advanced Linux troubleshooting and root cause analysis, reducing incident resolution time by 30%.• Collaborated with development teams to support application deployments and optimize performance.• Conducted quarterly patching activities to ensure security compliance, and led disaster recovery and backup processes.• Mentored junior engineers on Linux troubleshooting and performance tuning, providing technical leadership and guidance.• Documented root cause analysis leading to process improvements and reduced downtime by 75%.• Integrated and automated infrastructure processes resulting in a 25% boost in operational efficiency by utilizing Ansible.

• Managed high-performance Oracle enterprise systems and performed database restores, recovery, and cloning using Oracle tools.• Improved database performance through tuning and troubleshooting, resolving CPU and I/O bottlenecks.• Designed, implemented, and optimized Linux-based infrastructure for high-availability databases and applications, focusing on Oracle Linux environments.• Applied security patches and conducted vulnerability assessments to maintain system integrity and compliance.• Set up local repositories and managed system upgrades for database and application servers.

Oracle Database AdministratorVelocity Technology Solutions Inc. 04/2013 - 05/2018, Minneapolis, MN• Managed multi-tenant Oracle database environments with 40+ databases per server, ensuring high availability and reliability.• Led Oracle database RAC/ASM provisioning and patch management on AIX and Oracle Linux platforms.• Performed advanced troubleshooting and root cause analysis for database and infrastructure-related issues.• Served as a liaison between the NOC team and DBA team to ensure seamless communication during outages.• Implemented advanced tuning techniques on Oracle enterprise systems, boosting database performance by 20%, using tools AWR and Oracle Tuning Pack.• Executed database migrations for critical company applications, reducing migration time by 30% through optimized schema design and script automation, ensuring minimal downtime and preserving data integrity.Network Operations Center (NOC) - Tech LeadVelocity Technology Solutions Inc. 07/2010 - 04/2013, Minneapolis, MN• Provided 24/7 support for high-availability ERP (Lawson/Infor) and Kronos applications in a fast-paced environment.• Trained and mentored a team of six on advanced Linux troubleshooting and system performance analysis.• Collaborated with various IT teams to resolve complex network and system integration issues, focusing on uptime and performance..