Mamatha Sama
Development
New Jersey, United States
Skills
DevOps
About
MAMATHA SAMA's skills align with Consultants and Specialists (Information and Communication Technology). MAMATHA also has skills associated with Programmers (Information and Communication Technology). MAMATHA SAMA has 19 years of work experience.
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Work Experience
Cloud/DevOps Engineer
Vonage
January 2016 - December 2020
- * Developed and managed CI/CD pipelines using Jenkins, Git, and Maven, enabling seamless integration and continuous delivery of software updates. * Implemented Docker containers to package applications and orchestrated them on Kubernetes and Amazon EKS for scalable and resilient deployments. * Automated infrastructure provisioning and configuration management using Ansible and Terraform, ensuring consistency and repeatability across multiple environments. * Collaborated with development teams to streamline the release process, reducing time-to-market, and minimizing huma errors during deployments. * Designed, implemented, and optimized cloud infrastructure on AWS, leveraging various AWS services to enhance scalability, security and cost-efficiency. * Utilized AWS CodePipeline, AWS CodeBuild, and AWS CodeDeploy to automate the end-to-end application release process, reducing manual interventions and achieving faster deployments. * Implemented infrastructure as code (IaC) using AWS CloudFormation and Terraform, enabling version controlled, automated provisioning of AWS resources. * Participated in incident response and troubleshooting efforts, effectively resolving critical production issues, and ensuring high availability of services. * Worked closely with cross-functional teams to assess business requirements and implement DevOps best practices for improved software delivery.
Cloud Engineer
Citi Bank
January 2013 - December 2016
- * Architected and configured Dev/Stage/QA environments in AWS (VPC, Subnets, Security Groups, EC2, ELB, RDS, Redis, Route53, etc.). * Implemented security best practices in AWS including multi-factor authentication, access key rotation, role-based permissions, enforced strong password policy, configured security groups and NACLs, S3 bucket policies and ACLs, etc. * Optimized cost through reserved instances, selection and changing of EC2 instance types based on resource need, S3 storage classes and S3 lifecycle policies, leveraging Autoscaling etc. * Leveraged EC2 Create Snapshot API call to create snapshots of EBS volumes on scheduled intervals. * Configured CloudWatch alarm rules for operational and performance metrics for AWS resources and applications. * Leveraged Auto Scaling groups to right-size EC2 pools to match level of Demand and helped to manage costs by eliminating excess capacity to maintain optimal level of resources. * Planed, architected, and built large scale data process systems; architected successful implementation of data movement, transformation, analytics, and reporting solutions with AWS cloud. * Managed provisioning of AWS infrastructure using CloudFormation and Terraform. * Designed for high availability and business continuity using self-healing-based architecture, failover routing policies, multi-AZ deployment of EC2 instances, ELB health checks, Auto Scaling, and other disaster recovery models. * Developed and adopted DevOps model and CI/CD workflow in integrating Git, Bitbucket, Maven, SonarQube, JFrog, Tomcat, Ansible, Docker, Kubernetes clusters in automated deployments.
Sr. Security Engineer
PREMIERE GLOBAL SERVICES, TINTON FALLS L, NJ
January 2009 - December 2012
Middleware Administrator
CITI CARDS
January 2008 - December 2009
QA Engineer (Contract)
AMERICAN INTERNATIONAL GROUP (AIG)
January 2000 - December 2002
DevOps Engineer
BNY Mellon
January 2020 - Present
- * Managed and deployed microservices applications onto Amazon EKS clusters using deployment manifests and Helm charts. * Implemented CI/CD pipelines using Jenkins, enabling automatic building, testing, and deployment of applications, reducing manual effort by 80%. * Implemented continuous delivery framework using Jenkins, created pipelines for Jenkins jobs integrating with (SCM poll and Webhooks) Github, Git, Maven and JFrog. * Streamlined deployment processes by leveraging ArgoCD, Docker and Kubernetes (EKS) for containerization and orchestration, resulting in faster and more reliable deployments. * Designed and managed infrastructure using Infrastructure as Code (IaC) principles, utilizing tools like Terraform and AWS Cloud Formation to achieve infrastructure consistency and scalability. * Implemented automated configuration management using Ansible, reducing manual configuration time by 70%. * Designed, configured, and deployed Amazon Web Services (AWS) for a multitude of applications using AWS stack (EC2, Route53, S3, RDS, Cloud Formation, Cloud Watch, IAM, VPC, Cloud Front, ELB), focusing on high-availability, fault tolerance, and auto-scaling. * Created S3 buckets and managed policies for S3 buckers and utilized S3 bucket and Glacier for storage and backup on AWS. * Managed project to migrate a legacy on-premises infrastructure to AWS, resulting in a 50% reduction in operational costs and a 30% increase in system performance.
Education
