John Sundarraj Email & Phone Number

Chennai, Tamil Nadu, India

+ Bootstrapped SloopStash, a technology-based product startup company, building cloud software to enhance team productivity and infrastructure security.+ Operating SloopEngine, an R&D driven cloud-based SaaS product to build online software teams with secure access and auditing on the cloud. SloopEngine offers key features such as online IDE, SSH key management, SSH access management, project management, SSH logging & auditing, live SSH auditing, activity tracker, live chat, and more.+ Built SloopEngine core and it's key features from scratch through intense R&D.+ Designed microservices/services of SloopEngine stack to adapt multi-pod architecture and extending it to a hybrid cloud model.+ Automated infrastructure provisioning of 30+ AWS services to run the production environment of SloopEngine stack on the AWS cloud.+ Automated deployment of microservices/services of SloopEngine stack using Chef on the AWS cloud.+ Containerized microservices/services of SloopEngine stack using the Docker container engine.+ Automated/Orchestrated Docker containers of SloopEngine stack using Swarm and Kubernetes for parallelly running multiple environments.+ Managing infrastructure and deployments of Elasticsearch, Redis, MySQL, etc.+ Also involved in many other things which cannot be listed here.

Chennai Area, India

+ Managed isolated Elasticsearch clusters for Freshdesk, Freshservice, and Freshsales when operating at millions of requests per hour.+ Into debugging, troubleshooting, performance tuning (JVM), scaling, migration, and monitoring of Elasticsearch clusters.+ Managed capacity planning, infrastructure provisioning, deployments, and scaling of data clusters such as MongoDB, Elasticsearch, Riak, and Redis on the AWS cloud.+ Containerized microservices/services of Freshdesk and Freshservice stacks using the Docker container engine.+ Built own Ruby CLI app to automate/orchestrate Docker containers of Freshdesk and Freshservice stacks for parallelly running multiple environments on the AWS cloud at a large scale.+ Into debugging, troubleshooting, performance tuning, scaling, and monitoring of Docker containers. Have done intense R&D on Docker containers.+ Managed numerous AWS services and was deeply involved in the AWS cloud.+ Into Nagios performance tuning and optimization.+ Built custom dashboards and visualizations in Splunk using log data extracted from microservices/services of Freshdesk stack.+ Automated deployment of OSSEC security software on the AWS cloud.+ Automated deployment of microservices/services of Freshdesk stack using Chef on the AWS cloud.+ Faced more issues, downtimes, outages, root cause analysis, etc.+ Also involved in many ad-hoc things which cannot be listed here.

Chennai Area, India

+ Kickstarted as PHP developer & worked with MySQL database including schema design.+ Managed to configure LAMP stack numerous times.+ Implemented perfect OOP structure in PHP source code.+ Used SCM/VCS such as Subversion, Git, & Bazzar.+ Built plugins for PHPList & integrated it with SecureMx.+ Learned Javascript coding, custom CSS, & JSON.+ Did R&D and wrote single page Javascript app using Dojo framework that consumes PHP REST API.+ Worked on Drupal & learned to write custom modules.+ Built an Open Source product using Drupal's Open Atrium.+ Managed installation & configuration of Nginx HTTP server for PHP apps. Also, fixed Drupal's image cache issue with Nginx.+ Involved in R&D on GateOne & integrated it's API with Drupal 7 to provide SSH access to Amazon EC2 servers without sharing SSH keys.+ Did R&D on Zencoder & built custom Drupal modules to integrate Zencoder API and to directly upload videos to the Amazon S3 bucket from browser using Flash uploader.+ Involved in R&D & wrote creative Javascript library that captures the relative x,y coordinates of mouse pointer concerning image surface on browser to trigger appropriate Javascript API during click event.+ Learned to install & configure PowerDNS backed by MySQL database engine.+ Involved in R&D to integrate Zimbra 8 with MxHero & architected complete email ecosystem on AWS cloud that is composed of Zimbra 8 multi-server, MxHero, and PowerDNS. Used Amazon EC2, Amazon VPC, & Amazon RDS to achieve the desired architecture.+ Heavily configured Postfix MTA for Zimbra 8 and MxHero to accomplish planned architecture on AWS cloud. Also, solved the Postfix email looping issue & posted the solution to the MxHero community which was accepted by their authors.+ Again involved in R&D to built a Python+Javascript plugin to hook and extend GateOne.+ Built Drupal 7 installation profile and Open Sourced our software product.+ Also involved in many other things which cannot be listed here.