Selladurai Selvaraj


I hail from Tamil Nadu in South India, and currently based in the Caymans Islands! As a true-blue techie, you can find me continuously surfing new technology! I also make time to read and play badminton! Going on long rides on my bicycle, and hiking through the wilderness are other activities I indulge in!

Courses and Certifications
AWS Certified Developer - Associate

AWS Certified Developer - Associate

Amazon Web Service

Issued June 2020 - June 2023

  • Received '2017 Good Samariton Award’ at Cognizant Technology Solution
Career Summary

AWS Certified Developer – Associate with 5+ years of experience in developing robust code for high-volume of businesses, cloud based application, micro service, mvc architecture application, increase performance in an existing application. Received success in:

  • Developing logistics related application
  • Developing Queuing system and Indoor object movement tracking using beacons
  • Developing IoT solutions using Google Cloud  and Amazon IoT Services
  • DevOps and Continuous Delivery / Deployment using Jenkins / AWS code build/deploy
  • Developing Amazon Alexa skill


  • Bachelor of Engineering, Electronics and Communication from Sri Ramakrishna Engineering College, Coimbatore, Tamil Nadu, India June 2011- April 2015.
Work Experience


November 2020 - present

  • Develop single source of information about a specific vehicle, using MongoDB
  • Work on Azure Cloud technologies
Cognizant Technology Solution


September 2015 - November 2020

  • Worked on Building Management System as AWS cloud developer to integrate real-time device data, implement RESTFul web services for various building related uses cases
  • Implement Amazon MQ to send data to Niagara system and subscribe to data from MQTT Topic, Cloud Watch Custom metric, AWS XRay integration, send custom email using AWS SES service
  • Implement AWS Code pipeline for CI/CD to deploy application in AWS EKS
  • Implement web portal to increase  efficiency, upload files and validate file using Node.js backend and Angular 8
  • Integrate appDynamics, Cloud Watch and AWS AppSync to Node.js backend application and RESTFul web services in Node.js for the mobile development
  • Database design and store procedure in SQL server in logistics applications
  • Enhance the performance of the existing web application and RESTFul services, resolve dead locks in the application
  • Implement various internal POC application like smart refrigerator and people monitoring system in Azure Cloud and get data from real time devices using Azure IoT hub
  • Worked on Wattsense edge device to get data from real-time building AHU gateway and cooler data
  • Worked with Google cloud team to implement flood predict using machine learning and Google cloud components
  • Act as database designer, write RESTFull services using Java 8 for asset tracking system, and using RaspberryPi to detect various sensor output, and send to Google cloud IoT core for asset tracking system application
  • Implement new queuing system for the Networking Stores
    • Worked as database designer, implemented stored procedure, RESTFull web services, Chat bot designer and Azure deployment work
  • Develop new use for banking-use cases using Java, AWS lambda, Node.js in Amazon Alexa Voice controlled device
Technical Skills
Backend Technologies
  • NodeJS
  • Java
  • C#
  • Microsoft Azure
  • Python
  • AWS
Frontend Technologies
  • Javascript
  • Angular
  • TypeScript
  • Tableau
  • Spring MVC / Spring Boot
  • Dot Net
  • ASP Net Core
  • Apache Spark
  • J2EE
  • Spring Boot
Webservices Tools
  • REST
  • MQTT
  • WebSocket
  • AmazonMQ
  • Google Dataflow
  • MySQL
  • PostgreSQL
  • MongoDB
  • SQL
  • AWS Redshift
  • Bigquery
  • Redis
  • Dynamo DB
  • Git Lab
  • SVN
  • Jenkins
  • AWS DevOps
Technical Domains
  • Cloud Technologies
  • MVC
  • IOT
  • AWS
  • Docker
  • Kubernates