Ummadi Chandra

• Experienced engineer and team lead with expertise in DevOps and cloud engineering.
• Currently managing, maintaining, and updating infrastructure deployment pipelines for core/managed systems.
• Reduced development time by creating reusable code libraries for future projects.
• Conducted thorough code reviews to ensure adherence to coding standards and best practices.
• Successfully worked within tight deadlines and fast-paced environments.
• Participated in regular code reviews, maintaining high-quality standards across all development efforts.
• Debugged complex software issues, leading to more stable product releases.
• Maintained AWS infrastructure and services, including EC2, VPC, RDS, System Manager, IAM, and TGW.
• Managing deployments with Jenkins and GitHub Actions, troubleshooting issues, and optimizing existing pipelines for efficiency and reliability
• Quickly adapted to new technologies and programming languages, enhancing team productivity.

• GAIA Public cloud and Kubernetes platform
• Supported firm’s public cloud provisioning platform (called Atlas) and as part of core engineering team to host applications in AWS cloud, through Terraform, Ansible, Jenkins
• Experience on Continuous Integration Jenkins, performed end to end automation for build and deployments
• Designed and developed application build jobs in Jenkins (Created jobs for Java, nodeJS and Web applications)
• Built and maintained the Jenkins server
• Automated infrastructure provisioning using Terraform and integrated it with Jenkins
• Hands on experience in automating Infrastructure provisioning with Terraform
• Experience in integrating the unit test and code quality analysis tool like SonarQube
• Deploying artifacts to remote repository tools like AWS ECR and NEXUS
• Good knowledge of branching and merging code lines in the GIT and resolved all the conflicts raised during merges
• Configured monitoring and alerting with Prometheus and integrated with GRAFANA for metric dashboards
• Experience in centralized logging technologies (ELK)
• Configured and managed centralized log collection and processing with the help of ELK (Elastic Search, log stash, kibana)
• Configured and managed dashboards and Visualization using KIBANA
• Experience in container management and orchestration technologies like Kubernetes
• Responsible for managing the Kubernetes platform on an in-house private cloud
• Performed Kubernetes cluster node upgrades, where 1000s of PODS are running
• Build servers using AWS, importing volumes, launching EC2, RDS, creating security groups, auto-scaling, load balancers (ELBs) in the defined virtual private connection
• Excellent experience in designing, documenting and automating the build and release process
• Knowledge of databases like MySQL, Oracle and IBM DB2
• Good knowledge on networking concepts like routers, switches, DHCP, DNS, OSI layers, TCP/IP protocols
• Ability in managing all aspects of the software configuration management process including code compilation, packaging / deployment / release methodology and application configuration
• Experience in installing, configuring, managing, tracing complex build problems, release issues and trouble shooting skills
• Efficient in working closely with teams to ensure high quality and timely delivery of builds and releases
• Tracked the team activity through Jira
• Defined Sprint stories for the team and ran stand-up calls for the teams to track their status
• Monitored automated build and continuous software integration process to drive build/release failure resolution.
• Worked with cross-functional design teams to create software solutions that elevated client side experience and significantly improved overall functionality and performance.
• Researched and identified new technologies and tools helping to grow agile development environment.
• Worked closely with other business analysts, development teams and infrastructure specialists to deliver high availability solutions for mission-critical applications.
• Managed the daily scrum calls and monthly sprint meetings
• Prepared technical and non-technical documents for knowledge base
• Sharing knowledge with newcomers in the organization.

• Project3: SRE and cloud operations, Planned and developed on premise cloud infrastructure, which is spanned across multiple regions and data centers
• Launched Different EC2 Virtual Servers in public cloud using AWS Auto scaling & prebaked Amazon Machine Images (AMI) through Ansible Roles to maintain the production environment all times highly available
• Good knowledge on configuration management using Ansible
• Automated virtual instance OS upgrades using micro service model and integrated it with workflow management
• Configured and supported firm’s public cloud provisioning as per the requirement
• Automated daily routine activities like health checks, pre-works, backups, etc
• Knowledge of code management tool GIT and its concepts - Configuration, Administration, branching, merging, tagging, and committing changes
• Hands on experience in automating Infrastructure activities using Python/Shell
• Configuration and setup of virtual and cloud development environments using Vagrant /AWS
• Experience in AWS Cloud platform and its features which includes EC2, VPC, EBS, Cloud watch, Load balancers, IAM and S3
• Experience in configuring instance backup to AWS S3 buckets
• Experience in Public and Private clouds that include Cloud Foundry and AWS
• Installation of Red-hat, Ubuntu Operating systems
• Upgrading OS and other software as and when required
• Administer and monitor the Applications configured on servers and fine tune or troubleshoot as per requirements from time to time.

· Worked as Account Lead for Dynamic Automation Team and Operations who is responsible for

Developing and Deployment of IPSoft Automation Solution for various accounts within IBM.

· Leading migration of existing Automation system to Ansible Tower.

· Automated daily routine activities like health checks, pre-works, backups, etc

· Designed systems utilizing, Red Hat Enterprise Linux and AIX.

· Created shell scripts and cron jobs that monitored and reported security issues

· Resolved security vulnerabilities by analysing and recommending improvements in communications and

· network security at the component level

· Ensured business continuity by designing, implementing and testing disaster recovery systems

· Created checklists and collected audit data for compliance with SOX certifications.

· Developed, implemented and verified security policy and access management compliance

· Monitored system performance and prevented resource exhaustion using ssh, sar, vmstat, iostat, netstat

· and nmon.

· Ensure all Linux/UNIX systems and applications are compliant with DoD Public Key Infrastructure (PKI)

requirements.

· (classified/unclassified) for automated secure installations of mission critical Red Hat Enterprise Linux

Systems.

· Responsible for patching of systems and applications. Coordinate ASI’s if downtime required to complete

patching.

· systems and applications and make recommendations for improvements and automation.

· Systems administration, maintenance and monitoring various day-to-day operations.

· Install/Upgrade the OS and Start-up, Reboot and Shutdown the system as needed.

· Monitor the System Performance Parameters.

· Format the new hard disks, create Slices, make and mount the file systems.

· Software and hardware upgrades, patches, Packages installation.

· Responsible for Configuring, Installing and maintaining the Zones.

· Creating, Resizing, Restarting, Recovering, and Removing the Volumes.

· Responsible in configuring and managing VVR and VCS

· Managing and configuring NIS and NFS environments

· Primary responsibility includes building and supporting AIX/ Redhat Linux servers.

· Involved in Migration from AIX to Red Hat Linux.

· Worked on Linux Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SFTP, SSH, LDAP integration.

· Experience in LDAP servers, if there are any login issues for the users.

· Used LDAP to set Permissions, as an administrator to allow only certain people to access the LDAP database

· Provided technical documentation to the management and the project manager.

· Extensively used HMC to perform various tasks like creating VIOS and LPARS, performing DLPAR operation to change CPU configuration, changing memory, changing LPAR profiles, Activating LPARS, power-off frame etc.

· involved in Disaster Recovery test activities.

· Installed and build from scratch complete NIM Setup. Added different clients to NIM server and their Backup.

. Documented solutions for any issues that have not been discovered previously.