Sudip Maji

- Leading migration from EC2 VMs to kubernetes orchestrated containers - Dynamic configuration management using consul, confd, git2consul - Plan AWS VPC architecture using Terraform to have secure, cost friendly, environment agnostic infrastructure, integrated with Atlantis to manage provisioning from github comments - GitOps release pipeline using Argo CD and Drone CI for the platform - End to end development lifecycle planning on kubernetes, i.e. Secret management, access management, configuration management, build, deployment, monitoring, alerting, logging, everything as IAC and change management in git - Disaster recovery plan on kubernetes

- Responsible for infrastruture of plivo micro-services - Manage infrastructure as code - Dockerize services for easy development and slowly migrating legacy services to containers

- Manage infrastructure state using Terraform (https://www.terraform.io/) - Migration of whole infrastructure from EC2 Classic to VPC in AWS. (From late 2013, AWS made default VPC, before that machines use to launch inside EC2 Classic. As VPC has added security advantage, we migrated all components to inside VPC. We defined subnets, security groups, route tables, vpn, application/classic/internal load balancers, private/public hosted zone routing for services.) - Setup/tune web servers using nginx/uwsgi/apache/mod_wsgi - Design Highly Available, low latency, fault tolerant Message tracker using cassandra, thrift, haproxy, Apache Zepplin (https://github.com/iamsudip/he-clog) - Implement autoscaling solution on top of various data sources (rabbitmq, sqs, cloudwatch metrics, product data etc). - Deployment system using python-fabric - Configuration management using Saltstack - Infrastructure to manage and monitor SSH access to machines for Hackerearth engineers - Created a bot to manage processes running on different machines, manage servers, relay AWS alarms etc. If you are lonely talk to it you won't feel bored. - Manage infrastructure components built on top of rabbitmq, sentry, mongo, redis, sqs, mysql, haproxy, Cassandra etc - Architect infrastructure components in a linearly scalable way