Ambika Ranganathan Email & Phone Number

Calgary, Ab, Ca

Calgary, Alberta, Canada

• Build and manage Kubernetes multi-tenant platforms in OpenDNS edge DCs and Public Cloud environments to host Cisco internal tenant applications.• Automate infrastructure setup using Terraform to streamline deployment processes.• Led and implemented CI/CD pipelines using tools like Jenkins, ArgoCD, Flux and Concourse to improve efficiency.• Deploy a comprehensive monitoring and observability stack using Datadog, ensuring system performance and reliability.• Led cost optimization efforts for Datadog and AWS.• Facilitate and lead deployments from Dev to production.• Continuously seek optimization opportunities, improve efficiency via new tools and reduce cycle time for implementation via POCs.• 24/7 support resolving platform-related queries and issues.• For SOC2 compliance standards, implementing necessary controls, and facilitating audits to maintain regulatory compliance.

Canada

• Architected and implemented CI/CD pipelines using Jenkins, ArgoCD and Azure DevOps.• Designed Monitoring and Observability stack and setup.• Conducted Proof of concept on new CI/CD, telemetry, and security tools to improve efficiency. • Upgraded Infrastructure and tools.

Calgary, Canada Area

• Designed and implemented high availability cloud infrastructure (AWS)(Dev/Test/Production)• Installed and managed Kubernetes clusters on the cloud.• Automated infrastructure setup using Terraform.• Maintained deployment software and tools to support (Puppet, Concourse)• Managed landscape, dev, test, stage, and production environments.• Technical expertise to the operations team in resolving unplanned incidents. • Consulting support to projects from initiation to closure, supporting in setting up required infrastructure (dev, test, prod) CI/CD pipeline, monitoring, and support.• Led pre-production and production deployments.• De-escalate customer issues and drive customer calls for technical clarification.• Improved efficiency by continuous optimization, and validation with POC on new tools.• Enabled and supported development teams to adopt new tools to increase delivery efficiency.• Architected and implemented solutions to solve application challenges around cost efficiency, performance, scaling, and security.• Implemented monitoring solutions to gain insight into application performance and understand emerging issues (Nagios, Prometheus, Splunk).

Calgary, Canada Area

• Automated deployment of .Net and Java applications using Puppet and Rundeck.• Developed Docker images to support Development and Testing Teams and their pipelines.• Automation of Smoke Test cases using Curl and bash scripts.• Implemented Virtual machines using vSphere.• Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to the existing infrastructure. Puppet automation for maintaining server infrastructure.• Automating configuring SSL Certificates in WebLogic server.• Provisioning of SOA Domain in a cluster setup, configuring Datasource & DB adapter, configuring JMS servers, queues, topics and JMS adapters, Active Directory Authenticators on WebLogic, deploying archive files and tuning various SOA Suite Domains and Clusters containing Admin Servers.• Troubleshooting and fixing JIRAs for environment-related issues.• Deployment of OSB services, SOA composites & OAG policies.• Provided recommendations for FMW installation OEM automation.• Identified design issues and provided recommendations for ESI deployment, ESI Release processes for online activation, NGV and other ESI projectsKEY ACHIEVEMENTS• Fusion middleware provisioning automation through OEM – Reduced Provisioning time from 7 days to 30 minutes• AppDynamics installation Automation – Reduced AppDynamics installation time from 1.5 hours to 5 minutes• JMS automation – Reduced JMS configuration from hours to minutes• Puppet automation for maintaining server infrastructure.

Bengaluru Area, India

KEY ACHIEVEMENTS• Reduced Incident count from 100 to single-digit and sustained it.• TCO Reduction of 300 person-days/week.• Improved performance of call data recording rating application by 45%• Reduced failed product provisioning transactions from 1000 to zero /day• End-user feedback for tool usage improved.• Customer Support Representative Call holding time waiting for notes load processing improved from over a min to a couple of seconds by proposing and executing design changes.• Outages on the application due to ISAM file locking avoided by developing alerting process and intervention.• Proactively found issues with the PNS-Product and Subscriptions reports reprocessing and reconciling Two million records.• Reduced 3000/day for business (Orange Customer Support Representative team) by correcting IMEI 3G subscription• Averted business impact of faulty SIMs shipped to dealers. Corrected over 200,000 SIM entries with duplicate mapping in a single night. Engaged business teams to put on hold any further shipments.