01
Fullstack Development
Fullstack software engineer with 8+ years turning ideas into production-grade web and mobile products—JavaScript and TypeScript end to end, from React and Vue interfaces down to the APIs and data layers behind them.
Sidoarjo, Indonesia
Badik Irfandi
Senior software engineer. Eight years building production web and mobile products in JavaScript and TypeScript — from React and Vue interfaces down to the APIs and data layers behind them.
- Experience
- 8+ yrs
- Projects
- 20+
- Companies
- 4
- Status
- Open
What I do
02
Backend & APIs
Designing scalable backends and APIs with Node.js, NestJS, and Laravel—REST and tRPC services, PostgreSQL and MySQL with Prisma ORM, plus CI/CD pipelines and multi-tenant architecture from prototype to production.
03
Mobile Engineering
Cross-platform mobile apps with React Native—real-time features, polished UX, and smooth handoff between web and mobile product teams.
Selected work
All projects →
Web AppsTwillink
Case study
Twillink
A modern link-in-bio platform that lets creators and professionals consolidate all their important links into a single, beautifully customizable page—making it easy for audiences to discover and connect across every platform.
TanStack Start · Tailwind CSS · Prisma ORM · PostgreSQL
Mobile AppsCrosva Pty Ltd
Case study
YUFO Trade
A high-performance trade services marketplace that connects drivers and tradies through complex real-time delivery features, live location tracking, and seamless job management—built for the Australian market.
Next.js · NestJS · Hono · React Native · Expo · tRPC · Prisma · PostgreSQL
Mobile Apps
GrandePos
A modern point-of-sale system built with React Native for cross-platform mobile experience, powered by AWS Amplify for scalable backend—enabling seamless sales, inventory, and reporting for businesses.
React Native · AWS Amplify
Web AppsPlannedPro
PlannedPro
Built a comprehensive design-template platform that lets teams create, customize, and manage sales templates and Canva-style layouts—streamlining the production of professional, on-brand designs at scale.
Next.js · Tailwind CSS · Prisma ORM · MongoDB
Web AppsSetupin
Setupin
A platform for discovering and booking professional setup and interior design services—connecting customers with trusted designers and vendors to transform any space with ease.
Next.js · Tailwind CSS · Laravel · MySQL
Web AppsVascomm
SAIM
Built a scalable student pick-up monitoring platform with real-time location tracking on interactive maps, giving schools and guardians greater safety, transparency, and operational efficiency.
Next.js · Tailwind CSS · Prisma ORM · MongoDB
Open source
What I ship publicly.
Pull requests authored on projects maintained by other people — not my own repositories. Pulled live from the GitHub API and refreshed hourly.
- Upstream stars
- 190k+
- PRs merged
- 3
- Projects
- 6
expo/expo
52k+#49266 [font][web] fix font matching when the CSSOM keeps quotes around family names
TypeScript1 PR1 merged
jestjs/jest
45k+#16425 fix(jest-runner): honor `@jest-environment` when it is not the first comment
TypeScript1 PRin review
colinhacks/zod
43k+#6360 test(v4): stop redos tests failing on CPU contention
TypeScript2 PRs1 merged
portainer/portainer
38k+#13271 fix(datatables): keep the current page across dataset refreshes
TypeScript1 PRin review
TanStack/form
6k+#2278 docs: fix sidebar 404s and validate config.json nav targets
TypeScript2 PRs1 merged
textlint/textlint
3k+#2121 docs(contributing): replace eslint with oxlint
TypeScript1 PRin review
Recent activity
- Pushed to fix/12573-docblock-extract-allirfanfandi/jest
- Opened PR #16425jestjs/jest
- Reviewed PR #21238eslint/eslint
- Opened PR #2121textlint/textlint
- Pushed to no-use-before-define-iifeirfanfandi/eslint
- Commented on #21238eslint/eslint
- Reviewed PR #21238eslint/eslint
- Commented on #96496vercel/next.js
Experience
- Developed enterprise web and mobile applications with React and React Native, serving internal operations teams across multiple departments.
- Built and shipped a cross-platform POS system with React Native, enabling real-time transaction processing and inventory management for retail clients.
- Engineered a reusable component library adopted across 3+ projects, cutting UI development time by ~35%.
- Configured CI/CD pipelines with automated testing, reducing deployment time by 50% and minimizing production incidents.
- Optimized application performance through code splitting and lazy loading, reducing page load time by 40% and improving Core Web Vitals scores.
- Investigated and resolved complex bugs and performance bottlenecks, maintaining high system reliability.
- Collaborated cross-functionally with backend engineers and designers to ship product features on schedule.
ReactReact NativeTypeScriptMaterial UITailwind CSSExpoTurborepoCypressJestDockerMongoDB
Tech stack
What I reach for.
Languages & frameworks
- TypeScript
- JavaScript (ES6+)
- React.js
- Next.js
- Vue.js
- Nuxt.js
- React Native
- Expo
- Node.js
- NestJS
- Hono
- Express.js
- Laravel
Data & state
- PostgreSQL
- MySQL
- MongoDB
- Prisma ORM
- Redis
- tRPC
- REST API
- TanStack Query
Tooling & delivery
- Docker
- Docker Compose
- Turborepo
- CI/CD
- Jest
- Cypress
- Tailwind CSS
- Material UI
Let's build something worth maintaining.
Available for senior fullstack and mobile engineering work.