Shishir Yadav

About Shishir Yadav

As a Senior System Engineer with over 4 years of experience in AWS Cloud Infrastructure…

Experience

1. Senior System Engineer

   Infosys

   Oct 2023 — Present · New Delhi, IN

   Utilized Amazon EC2 instances for hosting banking applications, ensuring high availability and scalability. Implemented EC2 Auto Scaling to handle fluctuating traffic, reducing operational costs by optimizing resource usage.Managed and optimized the Amazon RDS database infrastructure for banking applications, achieving 99.9%uptime; automated backups and snapshots enhanced data security while ensuring compliance with rigorous industry standards.Leveraged Amazon S3 for storing large-scale customer data, transaction logs, and backups. Integrated S3 with AWS Lambda for automated file processing, reducing manual effort by 50%.Monitored application and infrastructure performance using Amazon CloudWatch, setting up custom metrics and alerts to identify and resolve performance bottlenecks. Reduced server downtime by 40% through real-time monitoring and automated responsesEngineered and managed secure Virtual Private Clouds (VPCs) for banking applications, achieving data isolation that safeguarded 100% of sensitive client information while maintaining compliance with financial regulations.Implemented role-based access controls (RBAC) using AWS IAM to manage user access and permissions for 200+ employees, enhancing security and compliance while reducing unauthorized access incidents by 40% across the organizationDesigned and implemented CI/CD pipelines using Jenkins and AWS CodePipeline, reducing deployment time by 75%Designed and executed a comprehensive alert system that automatically notified teams when servermemory utilization exceeded 95%, preventing potential outages and ensuring consistent server performance across all operational levelsAutomated infrastructure provisioning with Terraform and CloudFormation, leading to a 40-50% reduction in manual processes.Configured server provisioning and application deployment across multiple RRBsand PNB servers using Ansible. This automation reduced manual workload, resulting in a 70-80% time saving for the team.