Toh De Kai

Product Driven Engineer

Creating intuitive and impactful digital solutions

About


Back in 2020, I had the opportunity to develop a landing page during my UI/UX internship at Calibrate. This experience ignited my passion for coding, leading me to pursue a Bachelor's degree in Computing.

Since then, I have gained diverse experience across various roles, including project management, UI/UX design, and software engineering. This multifaceted background has equipped me with a comprehensive understanding of the development and design lifecycle, allowing me to deliver high-quality, user-centric digital solutions.

I specialize in creating intuitive, impactful, and accessible web applications. My goal is to bring innovative ideas to life while ensuring an engaging user experience.

When I'm not at my desk, I like to keep myself busy through an active lifestyle - aiming to complete a sub-5 hour marathon in 2025

Where I've Worked


Kovalee

Software Engineer Intern

FEB - JUL 2024
  • Spearheaded the development of a partner dashboard, collaborating closely with the data team to integrate Snowflake queries into API endpoints and build a dashboard using Astro, React, and Tailwind CSS.
  • Refactored API endpoints to use functions from the core library and migrated from a monolithic server to a microservice architecture.
  • Build features for existing tools such as introducing additional filters, and making additional data visualisation using Chart.js.
  • Implemented UI and created reusable components for multiple products using React, TypeScript, and TailwindCSS.
  • Implemented and deployed cron jobs and web services on Render.
AWSNode.jsReactJSTailwind CSSTypeScript

NUS IDS

Frontend Developer

JUN - JAN 2024
  • Created and designed new mobile-responsive web pages
  • Conducted website maintenance and effectively resolved bugs to ensure smooth functionality.
  • Introduced Git as a source-control system and Trello for more efficient project management.
Recommendation

GovTech

Software Engineer Intern

MAY - JAN 2023
  • Led Project Latios, employing Python, FastAPI, and DynamoDB, to generate trackable URLs with insightful data like click-through rates.
  • Collaborated with a team of 2 engineers to develop a personalized newsletter system, utilized by multiple government agencies. Leveraged AWS technologies, Python, and MongoDB for seamless implementation.
  • Orchestrated automated web crawling across 20+ news sites daily by building Scrapy spiders to crawl news headlines and articles and streamlined article processing into a uniform format using NLP techniques like lemmatization, tokenization tagging, and stopword removal.
  • Built REST APIs using FastAPI, integrating data from DynamoDB, to create a tailored EDM editor essential for internal teams.
Recommendation

ZALORA

Project Management Intern

SEP - DEC 2021
  • Improved productivity through user interviews and research, optimizing onboarding practices.
  • Enhanced organizational efficiency by transferring vital data from Google Sheets to Jira.
Recommendation

Skilio

Product Development Intern

APR - JUL 2021
  • Created a landing page using Figma and Elementor, combining design and development expertise.
  • Spearheaded the redesign of a web app.
  • Produced assets including product mockups to support marketing initiatives.
  • Engaged in numerous user interviews and usability tests to extract insights for product enhancement.
Recommendation

Lexly (Formerly Calibrate)

UX/UI Design Intern

AUG - FEB 2021
  • Developed landing page using HTML and CSS to attract more users.
  • Spearheaded design and development of high-fidelity prototype of mobile application with Figma.
Recommendation

What I've Worked On


HDB Pricing Visualisation
HDB Pricing Visualisation

The project aims to help people make meaningful decisions regarding HDB transaction prices by providing them with a simple and easy way to compare and filter transactions and visualise the data.

PythonNumPyStreamlitpandas

Icing On Top


Built with Next.js and Tailwind CSS, deployed with Vercel