Infrastructure Automation Configuration Management

Name: Sai Raghavendra

Email: ***********@*****.***

Phone: +1-469-***-****

PROFESSIONAL SUMMARY:

Dynamic professional with a passion for AWS/DevOps engineering and OpenShift Administration, boasting 10 years of extensive experience. Skilled in AWS (Amazon Web Services), Build & Release Management, Linux Administration, Infrastructure Automation, Code Migration, Configuration Management, Middleware, and System Administration. Highly motivated with a strong work ethic, capable of excelling in both team and individual environments, ensuring results through leadership and performance. Expertise in designing and implementing DevOps strategies, leveraging various Linux distributions and Windows environments. I am proficient with DevOps tool suites, including Subversion (SVN), GIT, CVS, ANT, Maven, Jenkins, Bamboo, Chef, Puppet, Docker, Docker Swarm, Kubernetes, Nexus, Artifactory, Nagios, and Splunk in traditional and cloud environments like AWS, GCP, and Azure. Recognized for successfully deploying and maintaining large-scale, available, and secure cloud infrastructures, achieving operational excellence and cost efficiency. Ardent desires to learn and adopt modern technologies with a positive attitude.

OpenShift Administration: Expertly managed and administered OpenShift clusters, ensuring high availability, scalability, and optimal performance for development and production environments.

OpenShift Upgrades: Successfully upgraded OpenShift environments from v3.7 to v3.11 and beyond, ensuring minimal downtime and seamless transitions.

Kubernetes Orchestration: Deployed and managed Kubernetes clusters, utilizing advanced orchestration techniques to optimize application deployment and scaling.

Kafka Integration: Integrated Apache Kafka with OpenShift/Kubernetes environments for real-time data streaming and processing, enhancing application performance and data handling capabilities.

CI/CD Pipelines: Developed and maintained CI/CD pipelines for Kubernetes and OpenShift deployments using Jenkins, GitLab CI/CD, and OpenShift Pipelines, automating build, test, and deployment workflows.

Containerization: Utilized Docker to containerize applications, creating reusable and portable containers for deployment across various environments, including Kubernetes and OpenShift.

Infrastructure Automation: Automated infrastructure provisioning and management using Ansible playbooks, Terraform, and OpenShift templates, improving efficiency and reducing manual intervention.

Microservices Management: Configured and managed OpenShift Service Mesh and Istio for microservices management, ensuring secure and efficient service communication.

Monitoring and Logging: Implemented monitoring and logging solutions using Prometheus, Grafana, ELK Stack

(Elasticsearch, Logstash, Kibana), and Fluentd, providing comprehensive visibility into system performance and health.

Persistent Storage: Configured persistent storage solutions for Kubernetes and OpenShift using Portworx, GlusterFS, and dynamic provisioning, ensuring data persistence and availability.

Security Best Practices: Applied security best practices, including Role-Based Access Control (RBAC), network policies, and regular security patches, to ensure a secure Kubernetes and OpenShift environment.

Disaster Recovery: Designed and implemented backup and disaster recovery strategies for Kubernetes and OpenShift clusters, ensuring data integrity and availability.

Helm Chart Management: Developed and maintained Helm charts for managing Kubernetes applications, simplifying application deployment and configuration.

Collaboration and Support: Provided training and support to development teams on using OpenShift, Kubernetes, and Kafka, fostering a collaborative DevOps culture and improving overall efficiency.

Performance Tuning: Conducted regular health checks and performance tuning of Kubernetes and OpenShift environments, optimizing resource utilization and application performance. TECHNICAL SKILLS:

Build Tools: Maven, Ant, Gradle

Programming/Scripting Languages: Python, Shell scripting, Bash, YAML, JSON Version Control Systems: Git, GitHub, SVN, Bitbucket Web/Application Servers: Apache, Tomcat, WebSphere, WebLogic, MS IIS, JBOSS, Nagios Cloud Technologies: AWS, Azure, GCP

Issue Tracking/Monitoring: Bugzilla, JIRA, ServiceNow, HPSM, CloudWatch, Nagios, ServiceNow Configuration Management Tools: Chef, Puppet, Ansible, OpenStack, Terraform Databases: MySQL, Oracle 9i/10g, Cassandra, NoSQL, MongoDB CI Tools: Jenkins, TeamCity, Bamboo

Operating Systems: Windows Variants, Linux, UNIX, CentOS, Ubuntu Container/Cluster Managers: Docker, Docker Swarm, Kubernetes, OpenShift Networking Tools: DNS, Route53, FTP, HTTP, HTTPS, TCP Monitoring: Cloud Watch, SolarWinds Orion, Nimsoft, Nagios, Splunk, App Dynamics PROFESSIONAL EXPERIENCE:

Samsung electronics America Jan 2023 - Present

Sr. DevOps/Kubernetes/OpenShift Engineer Plano, TX Responsibilities:

Built and maintained OpenShift clusters in PaaS solutions for TestNet, Development, DMZ, and Production environments.

Conducted POC for containerization and corresponding databases in Public Cloud, implementing IaaS and evaluating results.

Deployed and maintained OpenShift clusters in PaaS solutions to support backend services for mobile applications across TestNet, Development, DMZ, and Production environments.

Conducted POC for containerization of mobile backend services and corresponding databases in Public Cloud, leveraging IaaS for scalability and evaluating performance results.

Upgrade OpenShift environments in agile methodologies for advanced features in container technology.

Responsible for deployments and builds in Development, Stress, DR, and Production clusters for AWS and On-Prem environments.

Deploy Docker containers for applications using deployment techniques, maintained Docker daemon, and applied security fixes.

Configure and created Ansible playbooks for various use cases, automating infrastructure processes.

Document processes in Confluence for application and support teams.

Manage CI/CD platforms to deploy applications from Development to Production on-premise platforms and AWS instances.

Deploy AWS instances like EC2, VPN, S3, and CloudWatch using Terraform templates.

Set up Jenkins-based CI/CD pipelines to automate application build, test, and deployment processes.

Upgrade OpenShift environments in agile methodologies to ensure mobile clients have access to advanced and secure container technologies.

Automated Redis installation and configuration using Ansible playbooks and Helm charts.

Integrated Redis as a caching layer in microservices to enhance application performance and reduce database load.

Monitored Redis metrics and logs using Prometheus, Grafana, and ELK/EFK stack for performance and availability insights.

Configured Redis persistence (RDB/AOF) and implemented backup strategies for data recovery.

Tuned Redis performance settings (maxmemory, eviction policies) for optimized resource usage in production environments.

Enabled secure Redis access using authentication, TLS, and network policies in cloud-native deployments.

Troubleshooted latency and connectivity issues in Redis-backed applications across hybrid cloud environments.

Managed deployments and builds for mobile application backend services across AWS and on-premise environments, ensuring high availability and scalability.

Utilize Docker containers to deploy backend services, applying security fixes to maintain secure communication with mobile applications.

Create and configured Ansible playbooks to automate infrastructure processes, supporting efficient backend operations for mobile apps.

Document processes in Confluence to provide clear guidelines for mobile application and support teams.

Managed CI/CD platforms to automate the deployment of mobile app backend services from development to production on AWS and on-premise platforms.

Deploy AWS instances like EC2, VPN, S3, and CloudWatch using Terraform to build and monitor secure and efficient backend environments for mobile applications.

Set up Jenkins-based CI/CD pipelines to automate the build, test, and deployment of mobile app services, reducing time to market.

Configure Network Load Balancers and firewall rules for secure access to backend services supporting mobile clients.

Enable infrastructure services like syslog and monitoring to track backend logs, improving support for mobile application stability and performance.

Automated project creation playbooks to streamline the onboarding of new mobile app services to OpenShift Kubernetes clusters.

Applied monthly OS security patches, hotfixes, and release upgrades to OpenShift infrastructure to ensure the security of mobile app backend services.

Integrated Grafana and Prometheus for monitoring backend systems, providing insights into mobile app performance and service availability.

Configured Ansible Tower for automated, secure, and efficient management of backend services supporting mobile applications.

Coordinated with application development teams to optimize backend services for seamless mobile client experience.

Environment: Microsoft Azure, OpenShift, CloudForms, CA APM, Redis, Datadog, Prometheus, Grafana, Ansible Tower, AWX, Linux CLI, TFS, VMWare ESX/ESXi, Windows Hyper-V, Power VM, VirtualBox, JBoss EAP 7.x/6.1, Jenkins, YAML, JSON, GitHub, SVN, RedHat Linux 7.x/6.x, CentOS Linux, Ubuntu 14.x, Jira Bank of America Sep 2019 - Dec 2022

OpenShift Administrator/Engineer Charlotte, NC

Responsibilities:

Administered and maintained OpenShift clusters for development and production environments.

Upgraded OpenShift from v3.7 to v3.11 and Implemented CI/CD processes using Jenkins and OpenShift Pipelines.

Automated deployments with Ansible playbooks and Monitored and troubleshooted cluster performance issues.

Coordinated with development teams to optimize application deployments.

Developed and maintained Helm charts for managing Kubernetes applications.

Integrated OpenShift with external monitoring and logging tools such as ELK stack (Elasticsearch, Logstash, Kibana) and Fluentd.

Configured and managed OpenShift Service Mesh for microservices management and monitoring.

Administered and managed OpenShift Container Platform, ensuring high availability, scalability, and optimal performance of mission-critical banking applications.

Designed, deployed, and maintained containerized microservices architecture to streamline banking operations and improve application deployment cycles.

Implemented secure and compliant network policies, role-based access control (RBAC), and user authentication for sensitive financial data in adherence to banking regulations.

Collaborated with DevOps teams to automate CI/CD pipelines, leveraging OpenShift build configurations, Jenkins, and Git for efficient application delivery.

Monitored and optimized resource utilization using Prometheus and Grafana, ensuring cost-effective scaling of workloads.

Troubleshot and resolved issues related to container orchestration, networking, and storage, minimizing downtime for banking services.

Developed and maintained disaster recovery strategies and backup plans to safeguard critical banking data and services.

Conducted training and knowledge-sharing sessions for development teams, enhancing understanding of containerization best practices.

Environment: OpenShift, Jenkins, Ansible, Prometheus, Grafana, Git, RedHat Linux, CentOS, Helm, ELK Stack, Fluentd, OpenShift Service Mesh

Diebold Pvt Ltd Apr 2015 – Jul 2019

DevOps Engineer India

Responsibilities:

Designed and implemented highly available and scalable AWS infrastructure solutions using EC2, S3, RDS, VPC, and Auto Scaling.

Orchestrated and automated deployments with AWS Cloud Formation and Terraform, ensuring infrastructure as code (IaC) principles.

Conducted regular performance monitoring, capacity planning, and disaster recovery drills.

Provided support for troubleshooting and resolving production issues, ensuring minimal downtime.

Collaborated with development teams to optimize application performance, scalability, and reliability.

Conducted training sessions and knowledge sharing on DevOps practices and tools for internal teams.

Evaluated and recommended new tools and technologies to improve DevOps processes and workflows.

Participated in Agile/Scrum ceremonies and contributed to continuous improvement initiatives.

Documented technical designs, procedures, and troubleshooting steps.

Implemented CI/CD pipelines using Jenkins, AWS CodePipeline, or GitLab CI/CD for automated application build, test, and deployment.

Managed Dockerized applications using AWS ECS (Elastic Container Service) or EKS (Elastic Kubernetes Service) for container orchestration.

Implemented serverless architectures using AWS Lambda, API Gateway, and DynamoDB for scalable microservices.

Monitored and optimized cloud resources using AWS CloudWatch, CloudTrail, and third-party tools like Datadog or New Relic.

Ensured security and compliance of AWS environments by implementing IAM policies, Security Groups, and VPC configurations.

Conducted cost optimization exercises by implementing AWS cost management tools and strategies.

Designed and implemented disaster recovery (DR) and backup strategies using AWS services such as AWS Backup and Glacier.

Collaborated with development and operations teams to streamline CI/CD workflows and improve release cycles.

Provided on-call support and troubleshooting for production AWS environments, ensuring high availability and reliability.

Conducted AWS environment assessments and implemented best practices for performance tuning and optimization.

Assisted in the migration of on-premises applications and workloads to AWS, leveraging AWS Migration Hub and Database Migration Service (DMS).

Documented AWS architecture diagrams, deployment processes, and operational procedures. Environment: AWS, EC2, S3, RDS, VPC, Auto Scaling, CloudFormation, Terraform, Jenkins, GitLab CI/CD, ECS, EKS, Lambda, API Gateway, DynamoDB, CloudWatch, CloudTrail, IAM, Security Groups, AWS Backup, Glacier, Datadog, New Relic

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