~/junwen-k $ cat cv.md
Kwan Jun Wen
Senior Full Stack Developer — TypeScript · React · Node.js · 8+ years
01 — about
Results-driven full stack developer with 8+ years of comprehensive experience in web software development. Demonstrated expertise in TypeScript, React, and Node.js, consistently delivering high-impact solutions in Agile and SCRUM environments. Known for writing maintainable, scalable code with an unwavering commitment to code quality. Passionate about creating comprehensive documentation to facilitate seamless team collaboration and technology adoption.
02 — technical skills
languages : TypeScript · JavaScript (Node.js) · Go
web : React · Next.js · Svelte · Vite · Redux · TailwindCSS
databases : PostgreSQL · MongoDB
devops/cloud : Git · AWS · Vercel · Netlify · Serverless Framework
other : GraphQL · Elasticsearch · Serverless Architecture
03 — professional experience
Lead Software Engineer · Full Stack — Setel
full-time · 2025.06 — now
- Engineered an internal AI assistant platform by migrating from Chainlit to a Vite-based React and shadcn/ui frontend with a NestJS proxy service and Python FastAPI backend, designing the UI end-to-end and implementing the conversational pipeline using LangGraph and the Vercel AI SDK.
- Contributed to the Setel Subsidy feature — eligibility checking, eligible balance display, multi-language support, and transaction history — supporting the nationwide targeted fuel-subsidy rollout.
- Implemented features for the Touch 'n Go Mini Program: homepage revamp, rewards screen, app outage handling, and inbox UI enhancements.
- Maintained platform reliability through Node.js v22 and MongoDB 8.0 upgrades, improved unit test coverage across the onboarding codebase, and provided L4 operational support.
- Resolved security vulnerabilities including an axios CVE for PCI-DSS compliance and implemented internal audit controls to meet regulatory requirements.
- Adopted GitOps practices with ArgoCD and Argo Workflows for CI/CD, with hands-on infrastructure-as-code using Terraform in an enterprise-scale organisation.
Senior Software Engineer · Front-end Lead — OneCredit
full-time · 2024.06 — 2025.06
- Built a Retrieval-Augmented Generation (RAG) web app, focusing on the Next.js frontend and Express.js backend, to enhance document search with AI-driven responses.
- Developed a comprehensive PDF viewer using react-pdf and shadcn/ui — text highlighting, annotations, and intuitive navigation controls.
- Developed a robust Express.js backend with Drizzle ORM, MySQL, and Socket.io integration for real-time updates.
- Built an accessible, high-quality credit portal with motion animations, ensuring superior UX and technical excellence.
- Built a comprehensive Storybook of reusable UI components and design patterns, establishing a robust design system, plus multiple timely client demo applications.
- Authored extensive technical documentation and onboarding guides for seamless team integration.
Software Engineer · Solo Developer · OSS Maintainer — Self-employed
2021.05 — now
- Authored multiple open source projects including junwen-k/ui-x, serverless-bun, and various TailwindCSS plugins.
- Engineered high-performance web applications with React.js and SEO-optimized static websites with Next.js.
- Spearheaded a decentralized web application (dApp) using React.js and web3.js for NFT minting; designed Solidity smart contracts for the BNB Chain ecosystem.
- Optimized mobile performance to 90+ PageSpeed Insights scores using the Astro framework.
- Enhanced UI/UX with headless React libraries such as Radix UI and modern styling solutions like TailwindCSS.
Senior Software Engineer — Contract / Part-time
2023.01 — 2024.05
corpslab
- Engineered a React canvas component with the motion library, exposing imperative animation control via useImperativeHandle.
- Integrated a Unity-based interactive module using react-unity-webgl within the React frontend.
- Created a cross-platform mobile app with Capacitor, howler.js sound effects, and TailwindCSS, achieving a Unity-like visual experience.
mhub
- Designed a reusable AWS SQS microservice and collaborated with AWS to eliminate inefficiencies, achieving significant cost savings.
- Created an email verification solution with AWS SES and the SST framework, following infrastructure-as-code principles.
- Spearheaded Storybook adoption for the Enterprise App and built its foundational UI components, server actions, and layouts; evaluated Wasp-lang and SvelteKit in R&D.
mywam
- Designed and implemented a dental chart using SVG and React Flow to visualize and plot dental history.
- Developed an internal admin portal; refactored the codebase with axios-hooks, Formik and Yup; integrated Syncfusion Scheduler for appointments.
- Mentored junior developers on React best practices — state management, component design, and styling techniques.
Software Engineer · Team Lead — MHub
full-time · 2020.03 — 2022.12
- Led development of React-based user interfaces, translating complex Figma designs into functional components in a hybrid work environment.
- Implemented PostgreSQL/DynamoDB database solutions and integrated Elasticsearch for advanced search capabilities.
- Orchestrated AWS cloud infrastructure (S3, Lambda) under Agile/Scrum; engineered an AWS AppSync GraphQL API in Go with the Serverless framework, integrating external accounting software APIs.
Junior Software Engineer — MHub
full-time · 2018.06 — 2020.02
- Developed and maintained an internal React components library with Webpack; managed a Golang templating engine for booking form systems.
- Collaborated closely with design teams for precise UI implementation; designed scalable APIs with the Serverless framework.
04 — talks
Presented at React KL on efficient data handling in modern React apps with react-query — server state management, caching strategies, and real-world implementations.
Starting Out in Tech: Into the World of Codetech industry · 2021.03
Beginner-friendly talk on breaking into the tech industry — learning resources, overcoming obstacles, and motivating aspiring developers.
05 — education · certifications · languages
2015—18Diploma in Multimedia Design— The One Academy
certGoogle Cloud Skills Boost · Hacktoberfest 2020 / 2021 / 2022 / 2023
langMandarin (fluent) · English (fluent) · Malay (conversational) · Cantonese (conversational) · Korean (basic)
refAvailable upon request.