Ravi Yellayi

Cloud Readiness Acceleration Program | IAC (Infrastructures As Code)Role:

• Lead Modernization Efforts: Drive the App Rationalization & Modernization (AR&M) Program by aligning application teams with the program's vision and ensuring that modernization efforts are strategically implemented according to Chevron's IT goals.
• Architectural Assessment and Planning: Conduct thorough assessments of current application architectures, identifying areas for improvement, and recommending target architectures that align with Chevron’s IT engineering standards and guardrails.
• Technical Expertise in Microsoft Azure: Utilize in-depth knowledge of Microsoft Azure products and services to design and implement modern, cloud-native solutions that enhance application performance, scalability, and cost-effectiveness.
• Collaboration and Stakeholder Engagement: Partner closely with the AR&M core team, modernization factory partners, and the broader architecture community to solve complex technical challenges and ensure alignment across all stakeholders.
• Influence and Communication: Effectively communicate with app teams and other stakeholders to ensure a clear understanding of the modernization strategy, addressing concerns, and providing guidance on best practices and target architectures.
• Compliance with Chevron IT Standards: Ensure all modernization efforts comply with Chevron's IT engineering standards and guardrails, maintaining the integrity and security of the company's IT infrastructure.
• Continuous Improvement: Identify opportunities for continuous improvement within the application portfolio and modernization processes, driving innovation and efficiency within the IT landscape.
• Project Management Support: Provide support in managing modernization projects, including planning, execution, and monitoring to ensure timely delivery and alignment with business objectives.
• Reporting and Documentation: Maintain detailed documentation of architecture assessments, modernization plans, and progress reports, providing transparency and accountability throughout the modernization process.
• Mentorship and Knowledge Sharing: Mentor and guide junior team members, sharing knowledge and best practices in modern architecture and cloud computing, contributing to the overall skill development within the team.
• Developed Ansible Modules laying Enterprise Foundational platform for IaaS & PaaS deployments to Azure cloud.
• Automated Disaster recovery Solution using (Azure Site Recovery) for Tier 1 , Tier 2 & Tier 3 Applications.
• Developed Ansible roles for Kubernetes Cluster deployments and CI/CD wokloads.
• Deployed containerized applications with fully managed Azure Kubernetes service (AKS).
• Developed enterprise-wide Azure DevOps pipeline framework to handle continuous integration and deployments(through Terraform) of all applications in Chevron.

Tools & Libraries: Terraform, Ansible ,Azure , AKS , Docker,Python, Flask, Celery, Redis, Bash and PowerShell scripting and GitLab

• Development of Automation Scripts for Unix/Windows servers in Shell Scripting, PowerShell and Python.

Tools & Libraries: Terraform, PowerShell Scripting, Python, Ansible
Cloud Readiness Acceleration Program | Enterprise Infrastructure MonitoringRole:

• End - end deployments monitoring solutions for the applications in Azure using Azure Log Analytics and Grafana Dashboards.
• Log Management , Extraction and aggregation of logs on splunk Platform and Azure Log Analytics.
• Manage and run problem management forums to ensure optimal cloud environment availability and performance.
• Designed & developed Enterprise Dashboards using
• Develop Terraform Templates to deploy Tf scripts for Log Analytics solutions using Azure ARM templates.
• Implement REST-APIs for Incident Management.

Cloud Readiness Acceleration Program | Application Migration Architecture .

• part of 3 member architecture & Solutions team for Chevron's Cloud and digital Transformation project.
• Worked closely with other business analysts, development teams and infrastructure specialists to deliver high availability solutions for mission-critical applications.
• Worked closely with other business analysts, development teams and infrastructure specialists to deliver high availability solutions for mission-critical applications.
• Work with the project team to develop integrated cutover plans for each wave.
• Work with Standard Applications to align and integrate parallel cutovers .
• Develop Cutover Project Plans
• Develop Rollback/ Back out Plans

▪ Development, Configuration and Administration of dev, staging and

production stacks of applications in polyglot cloud environments like

AWS, Azure, Soft layer.

▪ Review and assess the risk of changes throughout the release process

and ensure quality, while automating build and release functions

in development, QA, UAT and production environments.

▪ Set up host level and application level monitoring for OneRoom

services with Datadog, Sensu and Prometheus.

▪ Provisioning and Managing instances in Azure and AWS

with chef cookbooks.

▪ Setting up ELK clusters for Docker logs and run analytics on it

▪ Developing custom pipeline scripts for automated testing

and publishing test results to concerned team.

• Worked effectively with cross-functional design teams to create software solutions that elevated client side experience and significantly improved overall functionality and performance.
• Monitored automated build and continuous software integration process to drive build/release failure resolution.
• Worked on Container Orchestration tool DC/OS - End to End deployments , dockerizing the application components , Versioning DockerFiles , Monitoring and logging on ELastic Search and LogStash and Datadog.

▪ Lift and shift of Infra to AWS from on-prem.

▪ Dockerize the Php application and designed CI/CD pipeline

with Jenkins to Dev and Prod Environments.

▪ Migrate MySQL database to Amazon RDS.

• Set up and controlled user profiles and access levels for each database segment to protect important data.
• Tested programs and databases to identify issues and make necessary modifications.
• Created and implemented database designs and data models.
• Coordinated with project management staff on database development timelines and project scope.
• Wrote and maintained technical and functional specifications to document database intentions and requirements.
• Created scripts and processes for data integration and maintenance.
• Administered, supported and monitored databases by proactively resolving database issues and maintaining servers.
• Modified existing databases to meet unique needs and goals determined during initial evaluation and planning process.

Daily monitoring the logs and nodes status of HP serviceguard Cluster in HP-UX to check the
connectivity between primary and disaster sites.
● Performing DR-Drill activity of moving the Database cluster packages from primary to disaster site to
check the performance and maintenance of primary site quarterly.
● Creation, modification & deletion of users in samba with ldap domain controller.
● Creation, modification & deletion of shared folders as per requests and authorize
● requested users to share folders in samba with ldap domain controller.
● Creating and modifying policies for restricted sites in squid proxy server as per company policies and
authorizing requested domain users with internet access.
● Working on primary and secondary DNS, DHCP & NTP servers.
● Working on VMware DRS cluster and ESXI Hosts.
● Installation of ESXI servers, vSphere Client and Vcenter Server whenever required.
● Creating new Luns in storage and assigning to datastores for storing VMs and data.
● Deploying new virtual machines and use clones, snapshots and templates.
● Daily Health checks for VMs and ESXI hosts.
● Performing DR-Drill activity of moving the VMs from primary to disaster site using VMware Site
Recovery manager.
● Working on HP EVA-8400 SAN storage and regularly monitoring the health of hard drives.
● Working on HP command view P6000 Web client to create new luns , replication groups.
● Monitoring the replication from primary to disaster site in HP command view P6000.
● Working on HP MSL 8096 Tape Library and monitoring the FC tape drives.
● Creating and scheduling backups in HP Data Protector.
● Preparing Daily Check List and Weekly Reports for HP-UX, Linux & Vmware Servers.
● Secondary Responsibilities: (Oracle Database Administration)
● Daily monitoring of alert logs, removal of trace files to provide the high availability for database
access to users and application.
● Responsible for Create new databases as per requirement and maintaining existing databases.
● Taking the backups regularly and restore the backup as per the requirement.
● Resolving the bugs in databases by interacting with oracle metalink and applying oracle patches to
fix the bugs.

● Ensure all the Disaster Recovery databases are in synchronize with production databases to provide
the high availability.
● Responsible for switching the roles of databases during maintenance. activities and reverting the
roles back after the completion of activities.
● Preparing Daily Check List and Weekly Reports.
● Database migration and upgradation processes.
● Performing RMAN Cloning, EXP, IMP, Datapump & performance tuningDaily monitoring the logs and nodes status of HP serviceguard Cluster in HP-UX to check the
connectivity between primary and disaster sites.
● Performing DR-Drill activity of moving the Database cluster packages from primary to disaster site to
check the performance and maintenance of primary site quarterly.
● Creation, modification & deletion of users in samba with ldap domain controller.
● Creation, modification & deletion of shared folders as per requests and authorize
● requested users to share folders in samba with ldap domain controller.
● Creating and modifying policies for restricted sites in squid proxy server as per company policies and
authorizing requested domain users with internet access.
● Working on primary and secondary DNS, DHCP & NTP servers.
● Working on VMware DRS cluster and ESXI Hosts.
● Installation of ESXI servers, vSphere Client and Vcenter Server whenever required.
● Creating new Luns in storage and assigning to datastores for storing VMs and data.
● Deploying new virtual machines and use clones, snapshots and templates.
● Daily Health checks for VMs and ESXI hosts.
● Performing DR-Drill activity of moving the VMs from primary to disaster site using VMware Site
Recovery manager.
● Working on HP EVA-8400 SAN storage and regularly monitoring the health of hard drives.
● Working on HP command view P6000 Web client to create new luns , replication groups.
● Monitoring the replication from primary to disaster site in HP command view P6000.
● Working on HP MSL 8096 Tape Library and monitoring the FC tape drives.
● Creating and scheduling backups in HP Data Protector.
● Preparing Daily Check List and Weekly Reports for HP-UX, Linux & Vmware Servers.
● Secondary Responsibilities: (Oracle Database Administration)
● Daily monitoring of alert logs, removal of trace files to provide the high availability for database
access to users and application.
● Responsible for Create new databases as per requirement and maintaining existing databases.
● Taking the backups regularly and restore the backup as per the requirement.
● Resolving the bugs in databases by interacting with oracle metalink and applying oracle patches to
fix the bugs.

● Ensure all the Disaster Recovery databases are in synchronize with production databases to provide
the high availability.
● Responsible for switching the roles of databases during maintenance. activities and reverting the
roles back after the completion of activities.
● Preparing Daily Check List and Weekly Reports.
● Database migration and upgradation processes.
● Performing RMAN Cloning, EXP, IMP, Datapump & performance tuning