Rajashekar Reddy

Project Experience #1

Optum Care (DevOps Migration Support):

UHG GitLab to GitHub action migration activities, where we have performed the workflow designs, involve migration from the legacy application to GitHub workflows for CI/CD pipelines, where it uses a single common action workflow for different environments.

• Implemented and changed the workflows for repositories from legacy (Plinharbor) to Repo1, where it uses the GitHub Actions and runs the CI/CD pipelines.
• Updated the Helm Chat modules based on the environment specifics, and tested the workflow files without any errors.
• Debugging the issues posted in the DevOps channel for file issues and repo pipeline failure issues in CI/CD pipelines.
• Worked on an X-ray scan implementation that checks for vulnerabilities in Docker images before pulling them.
• Worked on the Sonar Scan implementation in the workflow, where it checks for the code percentage and sets the target value.
• Working on variable replacements and secrets management using Vault, and implemented it in the pipeline.
• Worked on the Terraform modules and implemented and created the reusable modules.
• Worked on infrastructure improvement for a web application for scalability and high availability using Terraform.
• Worked on the PR status check automation script, where it checks the status of the PR and shares the file.
• Worked on issues posted on DevOps support channels for workflow failures, build image failures, and Kubernetes pod failures.

Project Experience #2

Cisco CX/PX Application (SRE/DevOps Support Engineer):

CX (Customer Portal) / PX (Partner Portal) is a Cisco application used by Cisco customers to check the details about their contracts with Cisco and upload details. This application processes the device data in the form of uploads and makes it available at the Cisco portal. These applications are hosted on AWS cloud architecture.

• AWS Expertise: Proficient in implementing robust AWS solutions, leveraging EC2, S3, EBS, Elastic Load Balancer, Auto Scaling Groups, VPC (including peering), Subnets, Routing Tables, Internet Gateways, IAM, Route 53 (routing policies like simple, latency, failover, and geo-location), RDS, Security Groups, CloudWatch, and SNS. Skilled in deploying infrastructure components like NAT Gateways, Elastic IPs, Route Tables, and VPC setups through Terraform.
• CI/CD & Version Control: Adept at installing, upgrading, and administering CI tools like Jenkins, and experienced in setting up automated CI/CD pipelines on cloud infrastructures such as AWS. Implemented complete CI/CD pipelines, integrating GitHub, Jenkins, Docker, and Terraform for end-to-end automation. Expertise in managing version control systems like Git, and utilizing GitHub, GitLab, and Bitbucket for source code management.
• Containerization & Orchestration: Hands-on experience with Docker containerization platforms, including Docker files, Docker Registry/Artifactory, and Docker Swarm orchestration tools, alongside foundational Kubernetes knowledge. Proficient in virtualization, container management, and optimizing resources by dynamically attaching EBS volumes to EC2 instances for cost efficiency.
• Infrastructure Automation: Skilled in writing Terraform Infrastructure as Code (IaaC), deploying infrastructure such as VPCs, subnets, security groups, route tables, IGWs, EC2, EBS, S3, and EFS, and managing system reliability through auto-scaling and launch configurations. Experienced in orchestration using Terraform for seamless infrastructure provisioning and pipeline automation.
• Monitoring & Troubleshooting: Extensive experience in developing and managing monitoring systems such as CloudWatch, Nagios, AppDynamics, and Kibana, enabling proactive oversight and troubleshooting. Familiar with bug and issue tracking tools like JIRA, and providing cross-platform support for UNIX and Ubuntu environments across production, test, and development setups.

Project Experience #3

Cisco CX/PX Application (AWS Support Engineer):

• Cloud Architecture & Deployment: Designed and deployed scalable and resilient cloud solutions across AWS and Google Cloud Platform, leveraging advanced services to meet diverse operational demands. Extensive expertise in AWS cloud architecture and DevOps, with hands-on experience in EC2, EBS, EFS, ELB, ASG, RDS, S3, Route 53, CloudFront, SQS, SNS, ECS, Lambda, CloudWatch, SSO, WAF, container insights, Step Functions, AWS Glue, VPC, CI/CD pipelines, and other AWS services.
• Production Issue Resolution and Collaboration: Proficient in analyzing full architectural workflows to identify and resolve production-level issues in collaboration with engineering and development teams. Successfully handled operational challenges within Cisco's Data Lake AWS account, leveraging AWS Step Functions, and Glue jobs for data processing. Streamlined issue resolution processes by utilizing Splunk for API Gateway troubleshooting and data analysis to rectify repeated ECS gateway errors.
• Infrastructure & Container Management: Expert in managing Kubernetes infrastructure (EKS) for Cisco partners and customer portals, optimizing POD CPU and memory utilization via EKS and AWS CLI. Competent in creating backup jobs for RDS databases, and configuring rules and subscriptions to ensure reliable frequency. Adept at maintaining AWS infrastructure health for portals, and preparing troubleshooting documentation to support L1 and L2 teams.
• Monitoring & RCA: Skilled in end-to-end infrastructure health monitoring using tools like AppDynamics, ServiceNow, and Splunk. Produced root cause analyses (RCA) for recurring issues in production, and enhanced reliability by addressing underlying system inefficiencies. Generated reports from Splunk to analyze daily data uploads and customer records.
• API Management: Hands-on experience with Google Cloud Platform (GCP) services for chatbot and ConvAI projects, addressing 4XX and 5XX errors in API Gateway services effectively. Contributed to architectural discussions to foster customer success during the development and migration of applications to the AWS platform.

STUDENT COMPUTER APPLICANT (SCP) [INTERSHIP]

I have worked as an SCP (Intern) at Wipro Technologies. It’s a program initiated by Wipro that provides graduates with opportunities for real-time IT experience and a master’s degree from a renowned institution.

Project #2: National Grid Account.

Working on designing high fault tolerance and high availability designs, and working on cloud data migrations and database services. Having hands-on experience in EC2, EBS, EFS, ELB, ASG, RDS, S3, Route 53, CloudFront, SQS, SNS, ECS, Lambda, and CloudWatch, I am working on designing the architecture with AWS services for web applications. Hands-on experience in creating data migration architecture and transferring the legacy application to cloud architecture. Worked on old VM upgrades, system updates, and DB updates for the national grid, and updated the parameters to restart the VM. BMC remedy tickets and monitor the job alerts.

Project #1: Saudi Airlines Account.

As a Service Desk Engineer for Saudi Airlines, I addressed critical and major incidents, collaborating with support teams to resolve issues. Subsequently, I transitioned to roles in Windows Administration and Network Engineering for the same client, providing Level 1 support. My responsibilities included Level 1 troubleshooting for clients, managing the Saudi Airlines Portal, and offering Level 2 administrative support. Additionally, I handled Priority 1 calls, maintained SLA levels, and worked with Workforce Management teams on resource allocation and management. I led a team of eight junior support engineers, training them in various roles, and ensuring SLA compliance without delays. My role also encompassed incident management, maintaining reports on major incidents, conducting root cause analysis, and collaborating with Major Incident teams for the review and resolution of issues.