Ragul Prakash Kasirajan

PERFORMANCE & EFFICIENCY

• Developing an extensive infrastructure cost analysis framework and application, facilitating accurate billing for cloud and on-prem infrastructure services for end-users, service owners and executives.
• Led the strategic planning and execution of a database performance recommendation automation project, enhancing system efficiency and user experience.
• Designed and implemented back end systems pipeline using telegraph, kafka, influx, golang to capture and analyze performance metrics, improving data-driven decision-making.
• Developed a self-service portal using React and materiel ui to monitor database performance and receive tailored optimization recommendations.
• Developed CRM functionality with in the portal to track performance engagements

Customer Success Consultant

• Collaborated with multiple portfolio teams to facilitate the on boarding to cloud infrastructure platforms, leading to a 30% increase in migration efficiency from legacy system
• Designed the automated workflow for capturing the platform data and mapping it with portfolio applications to capture portfolio tech stack consumption which helped us in identifying the technology used in multiple applications and plan on modernization efforts.
• Developed RESTful APIs and a React-based UI for real-time OpenStack migration data management, and automated OST metadata updates, enhancing operational efficiency and enabling daily dashboard email updates to stakeholders.
• Led the design and development of the Home Base Engineer Portal, consolidating multiple applications into a single platform. This included API integration, database modeling, and micro-frontend architecture, resulting in reduction in application redundancy and improved user experience.

SITE RELIABILITY ENGINEERING

• Developed a reliability matrix for store application hosting environment, enhancing store environment stability and service uptime .
• Engineered RESTful APIs using Node.js to capture real-time performance metrics from retail stores, enabling proactive system optimizations.
• Designed a user-centric dashboard with React.js to visualize real-time performance metrics, improving operational response times
• Implemented an automation pipeline using Prometheus and PostgreSQL to capture and visualize historical data, enhancing decision-making for store performance metrics.
• Optimized dashboard load times by 40% through an automated data partitioning procedure, facilitating quicker access to historical performance metrics.
• Collaborated with the ML team to utilize performance metrics data for predictive analysis, leading to a reduction in downtime incidents through preemptive identification of system anomalies.

PORTFOLIO DBA

• Ensured 24/7 operational integrity and performance of a portfolio encompassing over 50 Oracle and PostgreSQL databases, supporting critical production and development environments.
• Collaborated with merchandising and supply chain teams to design and deploy 10+ new database solutions, optimizing storage by 30% and enhancing performance through strategic data modeling and environment synchronization efforts.
• Led the successful migration and upgrade of 20+ databases across Oracle 12c and PostgreSQL platforms, improving system reliability and performance while ensuring zero downtime during critical operations.

CLIENT- TARGET, BEST BUY

• Ensured continuous operation and security for mission-critical databases using Oracle technologies like Exadata, RAC, and Data Guard, improving resilience and disaster recovery capabilities.
• Managed full lifecycle of database administration tasks for Oracle environments, including performance tuning, backup strategies, and migrations, while maintaining system health and performance.
• Automated routine DBA operations and implemented advanced monitoring solutions, delivering key metrics and system status updates, contributing to strategic planning and holiday readiness.
• Oversaw OEM Grid control for installations and upgrades, optimized job scheduling, and enhanced reporting functionalities, ensuring efficient database management across multiple versions.
• Led database migration projects, including planning and execution, from RHEL6 to RHEL7, analyzing and documenting methodologies for optimized transition.
• Collaborated with cross-functional teams for seamless database upgrades and patching, reducing system vulnerabilities and ensuring up-to-date operations.

• Monitored infrastructure using tools like Tivoli, Control-M to detect anomalies and potential failures.
• Provided first-level response for all infrastructure incidents, ensuring timely resolution and minimal disruption to operations. Managed ticketing system queue to track and prioritize issues effectively.
• Conducted initial diagnosis of network, server, and application issues, utilizing diagnostic tools and techniques to identify root causes. Escalated complex problems to senior support levels with detailed analyses.
• Created and maintained comprehensive documentation on incident resolution procedures, system configurations, and maintenance protocols to support knowledge sharing and continuity.
• Worked closely with IT teams and stakeholders to coordinate maintenance schedules, communicate system changes, and gather feedback on support service quality.