Sebastian Quek

I’m a software engineer who loves
crafting seamless user experiences,
designing beautiful user interfaces and
ultimately developing them.

Gantries

2022

A map-centric approach to explore Singapore’s Electronic Road Pricing (ERP) rates.

Includes animations that aid in the discovery of gantry rates. Relies on automated GitHub Actions pipelines to periodically fetch, process and update the custom Mapbox style.

Built using TypeScript, React, Mapbox, Playwright.

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Map of all ERP gantries and current rates

Map of all ERP gantries and current rates

Animation to hint of a swipe gesture

Swipe gesture to see all rates

Collapsed view showing upcoming rates

Collapsed view showing upcoming rates

Expanded view showing all rates

Expanded view showing all rates

See rates by vehicle type

See rates by time

GDS Landing Page

2020

A landing page for Singapore’s Government Digital Services.

Built using TypeScript, Gatsby, styled-components.

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Animated hero banner (Desktop)

Animated hero banner (Mobile)

Animated 'What we do' section (Mobile)

Animated 'What we do' section (Desktop)

'How we work' section

'How we work' section

'Benefits' section

'Benefits' section

'Blog' section

'Blog' section

SupplyAlly

2020 - 2022

Service that tracks the distribution of items to ensure each resident gets their fair share.

Primarily used for COVID-19 initiatives such as the distribution of reusable masks, contact tracing tokens, antigen rapid test kits and tourism credits.

Built using TypeScript, React Native, Expo, Node.js, Serverless Framework, AWS (API Gateway, Lambda, DynamoDB).

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Login via QR codes

Login via QR codes

Scan ID (type of ID is configurable)

Scan ID (type of ID is configurable)

Over-the-air updates via Expo

Over-the-air updates via Expo

Quota of items to be distributed

Quota of items to be distributed

Toggles with acceleration and rounding

Configurable items via AWS Parameter Store

Configurable items via AWS Parameter Store

mapyourgoals

2019

A calculator that helps you understand how much you should save every month to reach your financial goals.

Move and resize your goals through the interactive D3.js chart to see the effects and recommendations.

Built using React, Redux, D3.js.

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Interactive chart to find out if you're saving enough for your goals

Home page

Home page

Enter current savings

Enter current savings

Select goal category

Select goal category

Enter goal details (amount and date)

Enter goal details (amount and date)

See recommendations on how to meet your goals

See recommendations on how to meet your goals

Commit to saving the specified amount

Commit to saving the specified amount

Commute

Late 2017 - Mid 2018

An interactive visualisation tool to explore spatio-temporal transport datasets.

Created a custom force-directed chart that represents route choices and a time manager that makes filtering and navigating the temporal aspects of the dataset easy.

Built using React, Redux, D3.js, Mapbox, Koa, PostGIS.

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Dashboard screen

Dashboard screen

Basic shapes and colours used

Basic shapes and colours used

Tooltips

Graph to show route choices (1). Thickness and length of links are proportional to the number of commuters and duration of the route, respectively.

Graph to show route choices (2)

Graph to show route choices (2)

Graph to show route choices (3)

Graph to show route choices (3)

Linking the map and chart

Example of land use composition

Example of land use composition

Time manager for navigation

Patterns of 7 similar neighbourhoods

Courir

Early 2016

A multiplayer endless-running iOS game where players compete against each other in real-time.

Play against your friends in a real-time test of agility, speed and concentration or generate obstacles to try to wipe your friends out in special multiplayer mode.

Built using Swift, Cinema4D.

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Main game screen

Single player mode

Single player mode

Duck under cranes

Duck under cranes

Jump over crates

Jump over crates

Player movements

Player movements

ducking

running

jumping

Environment

Environment

Icon

Icon

Promo