Building performant, accessible, and visually rich web experiences with 3D and motion.
Who I am, what I do, and how I help teams ship great software.
Yong Sen, a developer offering end-to-end development for custom information systems. I work closely with businesses to design web solutions that modernize workflows, improve data management, integrate innovative tech to optimize operations, and empower decision-making through cutting-edge technology.
Began my journey while studying for my Diploma in Computer Science and Mathematical Computing, laying the foundation for my passion in software development.
Pursued a Degree in Software Engineering while working as a freelance developer for WhatIf Solutions Sdn. Bhd. Graduated with distinction (First Class Honours) and received the university's scholarship, successfully balancing academic excellence with real-world development projects.
Started a 6-month internship at Finexus Group, located at Menara KH in Kuala Lumpur. Demonstrated strong problem-solving skills by passing a logic test on the first day, which resulted in an increased allowance—a testament to my technical capabilities and quick adaptation.
Joined WhatIf Solutions Sdn. Bhd. as a permanent Software Engineer, building on the freelance experience and bringing fresh insights from my internship. Focused on React.js and Next.js, becoming passionate about building fast, modern web applications that solve real business problems.
Promoted to Technical Lead, taking on greater responsibility in leading technical decisions, mentoring team members, and driving the development of innovative solutions. This role allows me to combine technical expertise with leadership skills to help teams ship great software.
Outside of work, I enjoy these interests that keep me creative and energized in both life and code.
Selected work exploring systems, interfaces, and liquid-glass UI.
A modern, performant portfolio built with Next.js 15, featuring liquid glass aesthetics, 3D interactions, and MDX-driven content management.
A modern, cloud-enabled web application that allows you to upload Microsoft Word templates, automatically detect placeholders, fill them with user input, and export completed documents. Features Google OAuth authentication and MongoDB cloud storage.
Corporate website for L&H Steel Engineering Works Sdn Bhd highlighting company profile, services, portfolio, gallery, and contact with quote requests. Built with Next.js 14, TailwindCSS, and Framer Motion.
A snapshot of the tools and technologies I use day‑to‑day. Hover for a quick summary where supported, or tap a skill to expand.
Notes on engineering, interfaces, and building for the web.
A practical look at Retrieval-Augmented Generation: embeddings, vector search, and how to wire them to an LLM—plus how this portfolio implements the same pattern with Next.js, Supabase pgvector, and Hugging Face.
Practical, easy-to-apply security improvements for any online project — from security headers, rate limiting, login protection, to safe file uploads and more.
Let's work together. I usually respond within 1–2 business days.
Have a project in mind? Want to collaborate? Or just want to say hello? I'd love to hear from you. Fill out the form or reach out directly through any of the channels below.
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