Nikhilesh P

Cloud Engineer @Wells Fargo

Designed the core AWS network by implementing a multi-AZ VPC with segmented public and private subnets, route tables, and NAT gateways, supporting retail banking and risk applications processing ~120K daily transactions with high availability.•Deployed application infrastructure using EC2 Auto Scaling Groups and Application Load Balancers, enabling the platform to scale during peak transaction periods and improving overall request handling capacity by around 30%.•Created reusable Terraform modules to provision EC2 instances, IAM roles, and security groups, establishing a standardized infrastructure baseline and reducing environment provisioning time from several days to less than two hours.•Migrated legacy on-prem Java applications to AWS EC2, performing instance right-sizing and JVM configuration adjustments that resulted in a 25% improvement in application response times after stabilization.•Implemented event-driven processing using AWS Lambda (Python) triggered through Amazon EventBridge to support fraud-risk validation workflows, cutting manual review delays by approximately 35%.•Defined and enforced least-privilege IAM access by creating custom policies and permission boundaries, resolving security gaps and eliminating all over-privileged roles identified during internal access reviews.•Secured internet-facing applications by integrating AWS WAF with Application Load Balancers, significantly reducing exposure to common web threats and blocking nearly 60% of malicious traffic within the first month.•Re-architected audit log storage by moving long-term data from EBS to Amazon S3 with lifecycle transitions to lower-cost tiers, achieving a 28% reduction in monthly storage costs while meeting regulatory retention needs.•Established centralized monitoring and alerting through Amazon CloudWatch, enabling faster detection of infrastructure and application issues and reducing meantime to detect incidents by about 40%.