Previously built data platforms at Tencent scale

Hi, I'm Kelvin You

I ship 35% faster loads and 500K-row dashboards — from Tencent-scale analytics to SaaS products generating real revenue.

0+Years Exp.
0+Projects
0M+Products' Users

About Me

Learn more about my journey and what drives me as a developer

About Me
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Companies

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Faster Loads

0K+

Rows at 60fps

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Technologies

Engineer Who Ships

Frontend Engineer who ships fast without breaking things. Built dashboards serving 1M+ users at Tencent/MiHoYo scale.

Currently Building

Full-stack SaaS with Next.js + Supabase. Exploring AI-assisted development, cloud architecture, and data-driven product thinking.

0-to-1 startups + enterprise experience. Knows when to move fast and when to architect for growth.
Specializing in performance (35% faster loads), architecture (GraphQL layers), and scale (500K-row tables at 60fps).
ReactTypeScriptNext.jsGraphQLNode.jsPostgreSQL
Shipped for:
SimpletrussBeyondsoft (Tencent)FinexusTechtics

Experience

Building products at scale. From Tencent's millions to startup MVPs.

Simpletruss

Frontend Engineer

Simpletruss•
Kuala Lumpur, Malaysia
Full-time
Jun 2024 - Present

Building enterprise property management SaaS. 500+ properties, 10K+ maintenance tickets monthly.

  • Component library with compound patterns, TypeScript generics, Storybook docs. 40% faster dev velocity, 60KB bundle reduction.
  • GraphQL layer: Apollo Client, 80% cache hit rate, custom hooks (usePaginatedQuery, useOptimisticMutation). Type-safe, zero prop-drilling.
  • Performance: Code splitting, virtualization for 10K+ rows, Zustand over Redux. 35% faster initial loads.
ReactTypeScriptGraphQLApollo ClientZustandMaterial UIStorybook

LessenPro

Scheduling engine, vendor coordination, maintenance tracking. 500+ properties managed.

ReactTypeScriptGraphQLMaterial UIApollo Client
Beyondsoft (Tencent)

Frontend Developer

Beyondsoft (Tencent)•
Kuala Lumpur, Malaysia
Full-time
Jul 2023 - Jun 2024

Analytics platform for Tencent, MiHoYo (Genshin Impact), major game studios. Millions of events/day.

  • Performance: Virtual scrolling (500K rows), Web Workers for parsing, debounced filters. Sub-3s loads at 60fps.
  • Quality: Jest standards, mandatory reviews, 40% fewer production bugs. Docker dev env: 4h → 30min onboarding.
  • Cross-team: Specs with Tencent engineers, cross-browser (Safari, IE11), China CDN optimization.
ReactTypeScriptReduxAnt DesignJestDockerWebpackGo

Databrain Global

Real-time player analytics. 100K+ row datasets, complex filters, interactive dashboards.

ReactUmi.jsAnt DesignTypeScriptGo
Finexus (Fintech)

Java Engineer Intern

Finexus (Fintech)•
Kuala Lumpur, Malaysia
Internship
Feb 2023 - Jul 2023

Payment gateway systems. Legacy Java/JSP monolith, thousands of daily transactions.

  • Fixed connection pool bug causing peak-hour failures. HikariCP + JMX monitoring → 99.9% uptime.
  • Deployment automation: Bash scripts for Tomcat WAR deploys. 4h → 2h per release.
  • Jasper Reports: Query optimization, indexing. 8s → 1.2s report generation.
JavaOracle SQLServletsJSPTomcatShell ScriptingJasper Reports
Techtics (Web3)

Blockchain Engineer Intern

Techtics (Web3)•
Kuala Lumpur, Malaysia
Internship
Oct 2020 - Jan 2021

Ethereum dApp during 2020 DeFi boom. Smart contracts, gas optimization, MetaMask.

  • Solidity contracts: Reentrancy guards, gas estimation UI, MetaMask signing. Deployed to mainnet.
  • Gas optimization: IPFS storage, batched transactions. 65K → 38K gas (40% savings).
  • jQuery → React: 5K lines → 40 components, Redux state. 60% fewer bugs.
ReactTypeScriptSolidityMetaMaskNode.jsExpressRedux

Education

My academic journey in computer science and software engineering.

Bachelor of Software Engineering (Honours)

Tunku Abdul Rahman University of Management and Technology
Kuala Lumpur, Malaysia
Jun 2021 - Jul 2023

Specialized in distributed systems, parallel computing, and performance optimization. Built 15+ projects ranging from blockchain dApps to mobile applications. Core coursework: Data Structures & Algorithms (Java), Distributed Systems, Parallel Computing, Human-Computer Interaction, Graphics Programming. Electives: Mobile Development (Flutter), Blockchain Development (Solidity), Data Science (Python).

Achievements & Honors

  • Dean's List (Top 10% - GPA: 3.72/4.0)
  • Final Year Project: Travel Guide App presented to 50+ industry professionals
  • Secured Databrain Global (Beyondsoft) internship through university recommendation
  • Led student team of 4 for final year capstone project
Tunku Abdul Rahman University of Management and Technology
View certificate

Diploma in Computer Science

Tunku Abdul Rahman University of Management and Technology
Kuala Lumpur, Malaysia
May 2019 - May 2021

Basic Programming Concepts through various languages such as Object-Oriented Programming in Java, C, and Assembly Language. Mathematics courses included Algebra, Calculus, Statistics, Discrete Math.

Tunku Abdul Rahman University of Management and Technology

Projects

A collection of projects I've built and contributed to.

PTIB - Tuition Center Management SaaS
In Progress
PTIB - Tuition Center Management SaaS
Multi-tenant SaaS digitizing a 200-student tuition center. Role-based portals, Stripe billing, QR attendance, row-level security in Supabase. Saved 5 hrs/week, $500 MRR from 3 pilot centers.
Next.jsTailwindCSSSupabase+4
Demo
Personal Website
Maintaining
Personal Website
Performant portfolio with Next.js App Router, MDX blog, ISR, and i18n. 95+ Lighthouse scores across all metrics. Dynamic OG images, structured data, and RSS feed for search visibility.
Next.jsTailwindCSSShadcn+1
CodeDemo
Project Preview
Focusing
Zync - Meeting Scheduling SaaS
Real-time meeting scheduling SaaS (Calendly + Doodle reimagined). Architecting sync engine for 1000+ concurrent users with Supabase subscriptions. Stripe recurring billing, sub-200ms availability checks via PostgreSQL optimization and Redis caching.
React.jsNest.jsSupabase+4
See All Projects

Let's Connect

Interested in working together? Feel free to reach out!