Sandeep Singh

Managing a multi-tenant platform for Risk Protection, Fraud, Passenger and Driver Safety, and KYC Suite for Grab, while spearheading B2B initiatives through GrabDefence.

• Oversee and optimize EKS-based infrastructure using Terraform for provisioning and Datadog for comprehensive monitoring.
• Implement and uphold SRE methodologies to ensure system reliability and peak performance.
• Build an ArgoCD cluster from the ground up across multiple regions and lead the initiative to migrate microservices workloads from Jenkins to a GitOps workflow.
• Design and execute stress tests to identify and mitigate bottlenecks during peak traffic, utilizing Locust to simulate API traffic.

• Responsible for building and managing the Walmart Cloud Native Platform (WCNP) product for all
  containerised workloads serving Walmart’s application teams across global Ecommerce platforms &
  Stores/Distribution and Fulfilment Centers with Kubernetes as the backbone.
• Product Evangelist often presenting the value proposition of WCNP to customers, conducting best practices workshops and participating in consulting & troubleshooting sessions with customers .
• Hands on experience across the WCNP ecosystem working with Single Tenant, Cluster Automation & Reliability, and Multi Cluster Orchestration squads .
• Provision and manage AKS and GKE clusters using Terraform, ensuring the infrastructure is set up according to the desired specifications and configurations.
• Engineering, optimization and sustenance of cloud infrastructure with Kubernetes backbone to support scalable and highly available applications platform.
• Focused on integrating Walmart enterprise ecosystem around cloud native platform in Azure.
• Expanded WCNP footprint with Canada/UK/China clusters roll-out for general availability .
• Open Source adoption , Incorporated k8s sig project cluster proportional autoscaler in Walmart ecosystem achieving 10k USD/day cost saving https://github.com/kubernetes-sigs/cluster-proportional-autoscaler .
• Worked on role bindings and to harden the security of the infrastructure control plane system.
• Designed and implemented backup retention and recovery for Kubernetes CRDs with Velero with azure blob storage.

Customer success :

• Lead consultant for application migration from VMs to container based microservices in IDC.
• Lead the pilot program to work with applications teams to move to Walmart cloud native platform for IDC as Consulting as a Patterns, experiments & IDC On-boarding consultant.

• Transform Customer journey to the cloud by decreasing on-premises footprint.
• Managed and supported container infrastructure for banking clients
• Test/develop/build/release cloud platform capabilities .
• Designed Monitoring and Alerting system for Developer Platform to enable granule behavior of deployments in DEV/STAGE/PROD env.
• Create and manage Kubernetes resources, such as pods, services, and deployments, within the AKS and GKE clusters using Terraform, ensuring the applications are deployed and running smoothly.

• Assists production SRE team during incidents and outages with investigation of k8s stack / node failures
• Production support and Maintenance of Dev-ops tools that includes Jenkins, GIT, Bitbucket, Open-Source Jenkins, Kubernetes, Open-Shift, Cloud bees Jenkins and security analysis tools.
• Configuring, managing a supporting multiple build/SCM tools with Jenkins/Cloud bees which includes GIT, TFVC, Jazz repo, Maven, Make, Ant.
• Worked in scaling on-prem Master/Slave set-up in containers using OpenShift containers platform. It also includes Kubernetes plugin configuration on all master’s nodes
• Integrated monitoring tools AppDynamics in Kubernetes cluster, to active monitor pods Health.

• Created Jenkins CICD pipelines for continuous build & deployment and integrated Junit and SonarQube plugins in Jenkins for automated testing and for Code quality check .
• Configured Git with Jenkins and schedule jobs using POLL SCM .
• Implemented docker-maven-plugin in maven pom to build docker images for all microservices and later used Docker file to build the docker images from the java jar files.
• Created Docker Images using a Docker file. Worked on Docker container snapshots, removing images, and managing Docker volumes.
• Wrote several Ansible playbooks for the automation that was defined through tasks using YAML format and run Ansible Scripts to provision Dev servers.

• Maintained Devops CICD infrastructure including Artifactory, Jenkins.
• Created all scheduler and data back-up jobs using Python/Bash/Cron/SCP/SSH/FTP
• Worked on JIRA Administration including user management, workflow & field creation.
• Installed MAVEN and configured pom.xml in conventional projects for continuous integration.
• Automated deployment of software and provisioning of Linux hosts using Ansible.

• Responsible for installation, configuration, management and maintenance over Linux systems.
• Configuration of LVM and managing the volumes, Configuration of Virtualization.
• Monitoring server using nagios
• Configuration of FIP and remote applications like ssh, scp, telnet
• Diagnosing user related issues and providing solutions to them: Backup & Restoration by using tar
• Diagnosing, monitoring performance and network related issues using ps, top, netstat.