Varun Shivakumar Email & Phone Number

Reston, Virginia, United States

Responsible for upgrades and maintenance for all federal (AWS GovCloud) EKS clusters amounting to 200+ nodes and 6000+ pods. • Redesigned our AMI builds and EKS upgrade processes improving our uptime of our core product from two to three-9's (99% -> 99.9% uptime) and working on achieving the fourth 9.• Upgraded our EKS terraform modules from 17.x -> 20.x. Implemented additional improvements which allowed our SecOps team to implement changes to security agents much more quickly (from hours to minutes)• Upgraded EKS clusters from 1.20 -> 1.29 for cluster components (control plane, addons like VPC CNI and kube-proxy and data plane components like kubelet and AMIs) and facilitated upgrades to all other components (all helm charts and worker node services) including migrating from Docker to containerdAchieved FedRAMP Moderate authorization of Armis Centrix.• Architected our entire SDLC flow for internal product, external vendors, security tools, AMI builds and terraform/terragrunt• Wrote and contributed to RFCs for our PKI, management access and network architectureDeployed and maintain core services and infrastructure• Singlestore• Confluent• Istio• Cert-manager• Prometheus stack• Teleport• Nessus• Elastic Defend

Mclean, Virginia, United States

API Gateway is a mission-critical platform within C1, which is responsible for handling all API traffic and providing advanced capabilities to the producers and consumers. It handles billions of requests every day with a peak of 200K+ req/sec. Developing capabilities related to standards like OAUTH2, OIDC, gRPC, Open API 3.0. Building federated lightweight gateways for critical use-cases. Contributed to high-performance and secure API/Microservice/Proxy development framework based on OpenResty/Nginx/Lua and similar to Kong API Gateway

Vienna, Virginia, United States

Lead the cloud container initiative for the National Background Investigation System (NBIS)• migrated applications from EC2 to Fargate• implemented container scanning with ECR, JFrog XRay, Trivy and Twistlock• wrote a Concept of Operations (ConOps) for FargateCreated and managed all resources in production AWS account using CDK/Cloudformation• provisioned VPCs, subnets, transit gateways, internet gateways, security groups, ECS clusters, config rules, lambda functions, Cloudwatch log groups, CW event rules, CW metrics, EC2 instances, load balancers, S3 buckets, (custom) config rules, RDS databases, option groups, parameter groups, VPC endpoints• leveraged cloudformation init, ansible and SSM to manage EC2 instancesCreated/Maintained Gitlab pipelines for development teams (NPM, Go, Chef, Maven) internally and with external contractors. Configured Artifactory as a dependency proxy in an air-gapped infrastructureDeploying on-prem Kubernetes POC clusters. • kubespray, RKE2, Openshift

Reston, Virginia

Communicated with clients, took their SaaS applications and deployed, configured and secured them for FedRAMP audits on our Openstack cloud. Successfully took eTranservices/UDPaaS to FedRAMP authorizationImplemented Ansible best practices and actively trained other engineersImplemented automated backups of instances in RHV (RedHat Virtualization) using the Ovirt CLI

Reston, Virginia

Implemented Build Verification Testing (BVT) on top of our Jenkins CI/CD pipeline which automatically runs all tests on code commit and notifies the committer via email and Slack if there were test failures.Provisioned 50+ new hardware machines designated for testing on Foreman using Ansible scripts to support different test-machine configurations. Integrated resource monitoring into machines using Telegraf, InuxDB, and Grafana.Upgraded test harness, Docker images, and Ansible scripts to move from Postgres v9.2 to v9.6, Wildy v8.2.1 to v14.0.0, and CassandraDB to ScyllaDB.Developed a Ruby on Rails application that stores and displays test data which allows the team to see test pass percentage and review failed test runs on every build. Team members can also compare two different builds and see major release statistics

East Setauket, Ny

Designed and developed a web-based social media platform that gives rising internet personalities and their fans a greater variety of features to interact, discuss, and share content. https://fanuble.com/Focused on general application development, feature development, UI/UX, front-end development, usability testing, information architecture, and responsive web design.

Lake Success, Ny

Converted C# programs into python programs and wrote test cases. These programs ranged from validations of social security numbers, phone numbers, credit card numbers and parsing addresses using REGEX for the company's web-based applications.