Lim Chee Keen's Profile Picture

Lim Chee Keen

Contact email: limcheekeen.63@gmail.com

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Full Stack Engineer building cross-platform products across web (React/Next.js), mobile (Flutter), backend (Python/Node.js), and cloud (AWS).
Co-founder of Bizbulk. Organiser of Flutter Singapore.

🌐

Full Stack Web

React · Next.js · TypeScript

📱

Mobile

Flutter · Dart

☁️

Cloud & Backend

AWS · Python · Node.js

🤖

Data & AI

ML · AI APIs · AWS ML

Featured Projects

Bizbulk

Deployed

E-commerce group buying platform — create groups, buy products at a discount.

React Flutter AWS Firebase
View project →

2D Metaverse

Deployed MVP

Virtual meetings platform for companies — real-time avatars and video rooms.

React-three-fibre Agora AWS Cognito DynamoDB

AI Transcription Service

Deployed MVP

AI-powered web app to transcribe uploaded videos and audio into editable text.

Next.js Tailwind CSS AI

Flutter Hackathon Game

🏆 Winner

Google Global Gamers Challenge winner — a Flutter game built for a global hackathon.

Flutter Dart
Play game →

Professional Experience

Software Engineer · Spark Commodities 2025 – Present

  • Backend Python Engineer: Design, build, and maintain scalable server-side infrastructure to support core product operations. Responsibilities include RESTful API design and implementation, managing and optimising data pipelines and workflows, and overseeing full product lifecycle delivery from development through to production.

Software Engineer · GAOGAO Oct 2021 – Dec 2023

  • Dental service search engine: Migrated application from Client-side to Server-side rendering with Next.js. Performed Search engine optimisation. Created new payment gateway UI powered by GMO payments. Successfully completed in Oct 2023.
  • 2D Metaverse project: Built Metaverse for companies to hold virtual meetings. Used React-three-fibre as a 2D engine and Agora as a video hosting service. Deployed AWS Cognito, AppSync, and DynamoDB to create real-time updates for users. Successfully deployed MVP in Jun 2023.
  • Fintech company (loan services): Built front-end user interface for applying and tracking of loans. Used React.js as the web framework. Completed involvement in Dec 2022.
  • Food delivery service: Migrated a client's old database to the cloud. Used AWS Elastic Beanstalk, Route 53, RDS, and EC2. Completed involvement in Oct 2022.
  • Smart contracts application: Built web application for users to create Decentralised Autonomous Organisations (DAO). Front-end application interfaced with smart contracts hosted on the Ethereum Blockchain. Successfully completed in Jul 2022.
  • AI Transcription service: Powered by AI, the web application allows users to transcribe uploaded videos and audio into text for editing. Used Next.js and Tailwind CSS. Successfully deployed MVP in Dec 2021.

Co-founder & Lead Engineer · Bizbulk Apr 2022 – Present

  • E-commerce platform: Architected and built the cross-platform application. Set up cloud backend to power user authentication, database and payments. This platform allows users to create groups and buy products at a discount. Successfully launched in May 2022. Visit Bizbulk's webpage.
GAOGAO team
Bizbulk

Significant Contributions

Flutter organiser

Tech Stack

Frontend
React Next.js TypeScript Tailwind CSS
Backend
Python Node.js REST APIs
Mobile
Flutter Dart
Cloud
AWS EC2 AWS RDS DynamoDB Cognito AppSync Firebase
Databases
PostgreSQL SQLite Firestore
Other
Solidity/Ethereum C# (Unity) Machine Learning

Languages

  • English (Native)
  • Chinese (Advanced)
  • Japanese (Intermediate)
  • Spanish (Beginner)

Academic Background

  • Master of Computing (General track) , National University of Singapore 2024 – 2025 (Expected)
  • Bachelor of Arts (Honours in Political Science) , University of Warwick (UK) 2010 – 2013

Achievements

🏅
"Foundations in Artificial Intelligence" AI Singapore Jul 2020
☁️
"AWS Certified Machine Learning – Specialty" Amazon Web Services Aug 2022
🏆
Winner — Flutter Global Gamers Challenge Google Jan 2024 Play the game →
🥈
Top 5 Finalist — GovTech × OpenAI Hackathon First OpenAI Hackathon in Asia Nov 2024

Open Source

github.com/xjyribro

Check out my open source work and personal projects


Technical Blog

Check out my technical sharing and articles on Medium:
https://medium.com/@limcheekeen.63


Travel Blog

I lived in various parts of the world and I love travelling! I share my stories, photos, and travel tips on my blog:
mundivagantblog.wordpress.com


Fiction Writing

Caravel Book Cover
Marki Book Cover

Click here

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