Vernon Wee Hong KOH

Software Engineer

Lifelong learner with expertise in crafting engaging user interfaces (UIs) and robust application programming interfaces (APIs). Share knowledge and contribute to the growth of the community.

Actively learning .NET Core

Developed and inspired based on Brittany Chiang's website.

Built with NextJs and TailwindCSS, deployed with Vercel.

All text is set in the Inter typeface.

About

Over the past nine years, I have had the incredible opportunity to develop my skills as a full-stack developer. I have learned how to integrate front-end and back-end development to deliver high-performing applications effectively. I am thrilled to be proficient in industry-leading frameworks such as React (with a focus on user-friendly and performant interfaces), Spring Boot, and .NET Core. These frameworks empower me to tackle complex projects confidently.

My passion for continuous learning drives me to explore new technologies and refine my skills actively, and I love every minute of it! I love documenting my learning journey and have a knack for turning fragmented data into valuable insights. I share these insights in detailed blog posts that I'm really proud of! This dedication to innovation ensures that I bring the latest knowledge to my recent project!

I believe that having a healthy work-life balance is essential for a happy and fulfilled life. I love spending time with my family and friends, playing badminton, and exploring new restaurants (I'm a big foodie!). These activities help me maintain a fresh perspective and inspire new solutions, contributing to my problem-solving abilities and creativity in amazing ways!

Feel free to check out my GitHub repository, YouTube channel or LinkedIn profile below and reach out to me if you have any questions or would like to collaborate on a project!

Experiences

2020 CURRENT

Backend DeveloperDBS Bank

Volunteered to bridge the Singapore, India, and Taiwan teams by translating technical requirements for a multi-region project. Developed an API that enabled multiple DBS branches across regions to securely share and access data based on their specific regional requirements. This ensured seamless integration between branches and helped tailor the solution to the unique needs of each market.

Modernized enterprise-level report generation systems across APAC, cutting manual configuration time by 30%, and developed a production-ready API for one-click localized report generation and Kofax digital signatures, reducing processing time from hours to seconds.

Co-led the creation of a React-based component library adhering to strict bank UI/UX standards, now adopted by 5+ teams.

Java
TypeScript
Spring Boot
React
Jaspersoft Studio
Cloudflare
2018 2020

Full-stack DeveloperIPI Singapore

Automated user inquiry routing with a Golang-based batch processing system, eliminating 100% of manual assignment and reducing response time by 60%.

Designed and launched a Vue.js-based project management platform to streamline project tracking and invoice delivery, significantly boosting operational efficiency through process automation.

Partnered with business stakeholders to translate workflow pain points into scalable digital solutions.

Golang
VueJs
2017 2018

Full-stack DeveloperBlissbox Pte. Ltd.

Built a full-stack e-commerce web application from scratch using Vue.js and Laravel to digitize business operations for a local SME, implementing secure payment workflows with Stripe and deploying scalable solutions on Google Cloud to ensure high availability and operational efficiency.

Deployed the platform within 3 months, achieving 99.9% uptime and enabling full business digitization.

Collaborated closely with business owners to align technical features with commercial goals.

VueJs
Laravel
MySQL
Google Cloud
2015 2017

Web DeveloperWizWerx Pte. Ltd.

Delivered pixel-perfect, responsive WordPress websites tailored to client branding and SEO objectives.

Developed custom themes and designed graphical assets in Photoshop to enhance user engagement and brand visibility.

Partnered with clients to transform design concepts into performant, SEO-optimized digital experiences.

WordPress
Photoshop

Projects

Full-Text Search for PDFs with AWS

Developed a scalable full-text search system for PDFs using AWS services and C# .NET Web API, incorporating CQRS and Onion Architecture. Utilized Amazon Textract for automated text extraction from PDFs, SQS and SNS for job queuing and notifications, and OpenSearch for advanced full-text search features like fuzzy matching and faceted filtering. Managed secure user authentication and tier-based access control with Cognito, and stored files in S3 with presigned URLs. Implemented real-time notifications, retry logic, and comprehensive monitoring using CloudWatch, ensuring system scalability, reliability, and observability.

Amazon Textract
SQS
SNS
OpenSearch
S3
Cognito
CloudWatch
C# .NET
CQRS
Onion Architecture

Skills

Programming Language

C#
Java
TypeScript
Swift

Framework and Library

.NET Core
Spring Boot
NextJs
ReactJs
SwiftUI

Database and Storage

PostgreSQL
MySQL
MongoDB
Redis

Tool and Service

Docker
Jenkins
SonarQube
HashiCorp
Prometheus
Grafana

Awards

Educations

2012 2014

Tunku Abdul Rahman University CollegeMalaysia

Advanced Diploma in Internet Technology cum BS Degree

2012 2014

Campbell UniversityNorth Carolina

B.S. in Information Technology