Walter Tan Yong Ray

Hello! My name is Walter and I am currently a year 3 Data Science student who is enrolled in Ngee Ann Poly. I am an aspiring data scientist who is proficient in different programming languages. I am skilled in Python, C# and Java and also am familiar with software such as PowerBI, Tableau, TIBCO, Adobe Photoshop and Adobe Illustrator. In the future, I want to be a Data Scientist who will make an impact on the world.

Skills

  • Python

    Proficient in utilizing various libraries and packages for data preprocessing, feature engineering, model building, and visualization

  • Android Studio

    Developed and deployed Android applications, utilizing Java and XML to create user-friendly interfaces and implement core functionality.

  • C#

    Developed medium-scale applications based on the Object-Oriented (OO) approach

  • Excel

    Proficient in data analysis, formulae, and data visualization, leveraging Excel to create comprehensive reports and dashboards.

  • SQL

    Fundamentals in writing SQL queries to extract, manipulate, and manage data from relational databases, contributing to data-driven insights.

  • SAP

    Proficient in utilizing SAP for supply chain management and resource planning, as well as in analyzing curated datasets through SAP Cloud Analytics.

  • PowerBI & Tableau

    Created interactive data visualizations and dashboards in Tableau and Power Bi to present complex information in a clear and concise manner.

  • TIBCO

    Utilized TIBCO for integration and analytics tasks, enabling efficient data communication and real-time insights.

Projects

August 9, 2023

Pawgress

Developed Pawgress, a productivity app using Android Studio and Java. Worked with a team to integrate task management with gamification elements, allowing users to curate tasks, earn in-app currency, and care for a virtual pet. Utilized Java for task tracking and user interactions, creating an engaging and rewarding experience. Successfully integrated APIs, specifically Firebase to securely store and manage user credentials, and account information. Designed user interfaces using XML and ensured seamless functionality integration. Conducted testing and optimization to enhance app performance.

Feburary 8, 2023

Data Discovery and Visualization

This assignment involved conducting data preparation, exploration, and visualization on a provided dataset. It was essential to clean and prepare the data, as well as to explore its contents thoroughly and create visualizations and dashboards using Python Jupyter Notebook.

August 19, 2023

Data Wrangling Assignment 2

In this assignment we extracted data from a real-life database and was tasked with wrangling and preparing the data to solve a prediction problem. (regression, classification)

June 3, 2023

Data Wrangling Assignment 1

In this assignment we wrangled data from a real-life dataset and use an array of data wrangling techniques in order to prepare the data to be ready for modeling.

April 16, 2023

Penta Hackathon

Led a team to develop an AI model capable of analyzing facial features to detect human emotions on students, using python packages such as Keras and tensorflow

Certificate

Ngee Ann Poly

Secondary School

Work Experience

Field Surveyor
Grab
December 2021 - Feburary 2022

Responsible for conducting immersive market research and administrative duties

Education

Diploma of Data Science
Ngee Ann Poly, Singapore
March 2022 - March 2025
O Level's
Yuan Ching Secondary School, Singapore
Janurary 2017 - October 2021

Volunteering

Food Rescue #2 2023

1 / 3
Block Group
2 / 3
AM Shift
3 / 3
Packing Group