DEVANAND JEGARAJ

As the Sr. Manager of Site Reliability Engineering at Yum! Brands, I lead a team of engineers and leverage cloud-native technologies and infrastructure as code principles. Collaborate with engineering teams to architect solutions that meet reliability and performance requirements, adoption of automation tools and practices to streamline repetitive tasks, improve system observability, and increase operational efficiency. Implemented monitoring and alerting solutions to proactively detect and mitigate potential issues. Collaborated closely with product development, infrastructure, and operations teams to drive alignment on reliability goals and priorities. Led cross-functional efforts to implement best practices in incident management, change management, and capacity planning.

• Implement and manage infrastructure as code through Terraform
• Automate Cloud infrastructure provisioning with Puppet and other automation tools
• Implement CI/CD and manage continuous code build and deployment using Jenkins
• Configure and monitor New Relic for application performance monitoring (APM)
• Implement and manage ELK Stack (Log Analysis & Monitoring)
• Managed Docker containerization and Kubernetes clusters
• Used Kubernetes to orchestrate the deployment, scaling and management of Docker Containers
• Used Cloud Protection Manager (CPM) for Backup, Recovery and DR solution
• Implement Route53 latency-based routing to send user traffic to the nearest AWS region
• Implemented rolling deployment process to deploy an application with zero downtime

Involved in Building the F5 front-end and backend URLs for clients research technology environments
IP address assignments, DNS changes, processing firewall change
New domain creations, domain and SSL certificate transfers for new acquisitions
Acquire and renewal of ssl certificates for new and existing clients applications
Gathering network requirements and making the necessary network and firewall changes
Troubleshooting & coordinating with tecnology team & Global change management team to setup the network connectivity between the data centers

Project: Time Warner Cable:
Tier 2 support for Monitoring, Fault Management and Network administration for Time Warner Cable's Data Center Network
Worked on multi-vendor devices like Juniper Net screen Firewall, Cisco Routers, and Switches, MacAfee IPS
Processing high priority Firewall requests and troubleshooting

Project: Cisco:
Managing and monitoring all the Cisco's Data center and corporate network links around the globe.
Worked with vendors to provide uninterrupted services to clients.
Worked for upgradation/degradation of T1, T3/E3 and DS3 circuits

• Providing Network Infrastructure Support for Juniper Networks across all regions like the United States, EMEA, and APAC
• Troubleshooting Juniper SSL VPN and NetScreen Firewalls and maintain strict Service Level Agreements

Monitoring of connected clients using Nagios and Whatsupgold

• Management of network setup consisting of Cisco 7200, 4000 and 3600 series routers & 2950 and 6500 series switches
• Managing the entire network segment consisting of cable ISPs connected to our network.
• Collecting and processing data about network performance using Nagios
• NOC operations (Monitoring the Leased circuits using WhatsUp Gold, MRTG, Nagios
• Coordinating with different last-mile providers to implement the leased circuits for new upcoming customers

• Installation, Configuration, and Troubleshooting of Cisco Catalyst 2950 Switches for Reliance Web Worlds servers and networks
• Installation and Configuration of Leased Line Modems (Real-time) for external customers
• Maintenance of network at multi Reliance web-worlds located in Bangalore
• Supported Internet/Intranet infrastructure implementations.
  Hands-on experience on Remedy Help Desk software automation support processes

• Installing and maintaining Cisco 2600 Series Router
• Installation, Configuration, and Troubleshooting of Cisco Catalyst 2950 and 1900 series switches
• VLAN, VTP, ISL (Inter-Switch Link), 802.1q Configuration.
  Installation and setup of Network switches, hubs
• Diagnosed and resolved network connectivity issues for all clients in the organization
• Successfully managed TCP/IP environment and implemented DHCP Servers
• Used performance monitor to analyze the bottleneck problem