Nilesh Roy

Senior Systems Engineer with 2+ years of experience designing, automating, and supporting cloud-native infrastructure across AWS and GCP. Skilled in CI/CD automation, containerized microservices, and Infrastructure as Code using Terraform, Docker, Kubernetes, and Jenkins.

Strong

Linux and IAM background with proven success in cost optimization, system reliability, and production support. Known for driving automation, reducing downtime, and collaborating across teams to improve service performance and operational efficiency.

Senior Systems Engineer at Cognizant (2022-08 – Present)

Senior Systems Engineer managing cloud-native infrastructure, microservice deployments, and CI/CD pipelines across AWS and GCP with focus on automation, cost optimization, and system reliability.

• Implemented and orchestrated 20+ microservices across Google Kubernetes Engine (GKE) and Elastic Kubernetes Service (EKS) to optimize cloud-native application performance
• Built and managed Docker images and Docker compose setups, pushing images to registries and enabling consistent application deployments
• Managed AWS and GCP infrastructure using Terraform, improving performance and optimizing costs through efficient resource allocation, reducing spend by 3–5% quarterly
• Automated Azure provisioning with Terraform for consistent deployments; 75% of infrastructure is Terraform-managed
• Managed CI/CD pipelines with Jenkins, reducing deployment times by 30% and streamlining the release processes
• Utilized Prometheus, Grafana, Splunk for performance monitoring, alerting setup, and dashboard creation, resulting in reduction in downtime by 25% and enhanced system health tracking with 90% coverage
• Automated repetitive tasks with Python, Bash and shell scripts, scheduling them through Airflow, which enhanced overall efficiency by 20%
• Administered IAM systems (Active Directory, Okta) including user lifecycle management, MFA/SSO configuration, and access control
• Handled high priority incidents with ServiceNow ticketing tool for incident, task, change and request Management with 90% First level resolution
• Supported application deployment in on-prem and cloud environments
• Troubleshooting of Microsoft Office applications and resolving licensing issues to improve user experience
• Worked with user account and device management using Microsoft Intune
• Participated in IT initiatives to enhance process efficiency, incident response, and team collaboration, improving overall productivity and customer satisfaction
• Collaborated with cross-functional teams to define SLAs and optimize solutions improving service reliability and performance metrics by 10%

Masters (Honours) in Computer Science – West Bengal State University (2020 – 2022)

Bachelors (Honours) in Computer Science – University of Calcutta (2017 – 2020)