Code complexity has never crossed O(n) when I try to reduce the code complexity of backend code. 1) No unused variables such that there will be no garbage values existing in code for JUnit (Test case for the method). 2) Avoided looping using for or while

Integration Testing: Running all the JUnit tests from each classes under _test_directory which will return the code coverage report.

Hit and try to locate the specific bugs inside the backend code and communicate and report the error with specific error messages with team and engineer managers to resolve the issues and improve the code coverage report. ( Troubleshoot for bugs while writing the unit test cases for each function)

Modify Firebase backend code: Firebase code changes to check for the connection with connection with firebase locally.

Learned mocha, chai, and sonna, and nyc testing libraries.

Problems solving skills: Solving timeout issue and other bugs while encountered writing unit test cases

Work with a team of UX Designer, and Big Data Scientists in an Agile environment

Write real-time data functions connecting to Firebase Firestore

Write Firebase Authentication for user login

Develop UI dynamic components: using SASS, Bootstrap CSS, and Custom Advanced Modern CSS

Develop the real-time data visualization dashboard using React, Redux, Virtualized Table

Develop the real-time data visualization Charts of all kinds using D3, Highchart.js

Develop the real-time Geo-based data visualization Map dashboard using Google Map API, and leaflet

Collect GeoJSON dataset

Parse .csv into JSON

created the video promotional demo of the two apps prototype for raising funding

created the custom-made corresponding 3D device emulators