thomasr0628

Developed RESTful APIs & SOAP using Java/Kotlin - Spring Boot for a web application with over 1 million users per month. Developed frontend in React with Redux for frontend application and developed chrome extension as well. Used Kafka to Stream Data in backend side. Used Selenium and Web Driver to scrape date in python from Amazon. Developed an engine in Scala with Spark to handle big data from AWS to increase their sales on Amazon. Development Multithreading solution to improve the scrapping engine infinitely. Used MySQL, NoSQL(MongoDB) and GraphQL on the back end. Deployment & Management the product (multi microservices) using AWS Clouding Services(AWS Lambda, DynamoDB, SQS, EKS) in the development stage but later migrated into GCP( GCP Functions instead AWSLambda, MongoDB instead AWS DynamoDB, Apach Kafka instead of AWS SQS, GKE instead of EKS). Used JIRA as the bug tracking system to track and maintain the history of bugs/issues on everydaybasis. Worked with Mockito Testing Library unit test framework to write unit tests for backend apis. Monitoring the offshore work and providing technical help to the offshore team for their JIRAtickets. Performed the System Testing, Regression Testing for Complete UI after fixing the Issues which are reported by Testing Team.

Created APIs to provide financial data to front end applications. Responsible for development crypto-currency swap system similar withbinance. Responsible for development of backend side in Python and Spring Boot(Java). Worked with Apache spark to manage BigData on AWS Cloud and accelerating Crypto’s sales. Worked with scala, apache spark developing engines for BigData. Worked on RESTful API design and development. Expertise in using React.js/Redux to build UserInterface. Maintained states in the stores and dispatched the actions using redux. Used React-Auto complete for creating google map's location search on the webpage. Used Middleware, Redux-Promise in application to retrieve data from Back-End and to also perform RESTFUL services. Added Dynamic Functionality by creating and dispatching Action Creators that deployed Actions. Created and used Reducers that received said Actions to modify the Store StateTree. Worked with backend engineers to optimize existing API calls to create efficiencies by deprecating unneeded API calls. Called the Restful web services calls for POST, PUT DELETE and GET methods with MS SQL backend. Worked with AWS Lambda using Node.js 14 including SNS to refresh data based on changes.

Responsible for backend API development in Python & NodeJS. Responsible for deployment & management of NodeJS WebSocket Service in AWS Lambda. Responsible for deployment & management of Python Backend Service in AWS EC2 instance – Ubuntu Server. Partnering with teammates to discuss about solutions. Responsible for identifying the gap, coordinate with external team for dependency resolution and closing the gap. Responsible for analysis big database with mongoDB. SQL query optimization with GraphQL. Partnering with Scrum master and Product manager in daily scrum call, resolving impediment related to mapping document, sprint planning and PI planning.

Responsible for development and guidance junior developers in the technical stacks: NodeJS, ReactJS, MongoDB, AWS Recognition, AWS S3, AWS Lambda. Responsible for infrastructure and management of AWS Clouding Services including payment role. Responsible for development of backend apis in Java (Spring Boot Framework). Implemented load-balancing with nginx to allow NodeJS instances to handle concurrent users. Node.js, MongoDB with Mongoose, TypeScript and Express & express middleware. Used MySQL and NoSQL on the backend. Worked closely with System Administrators to take ownership of the product's operations and metrics. Worked on RESTful API design and development. Responsible for suggestion of the best solutions to scale the product.