Hi I am

Andreas C. Kurniawan

Fullstack Developer

4+

Experience

20+

Project done

5+

Happy Clients

andreas

About Me

A Fullstack Developer with a Passion for Clean Architecture and Scalable Solutions

I turn complex business challenges into elegant digital solutions. As a Fullstack Developer specializing in Next.js, React, and Node.js, I've delivered 4+ high-stakes client projects generating over IDR 1 billion in value, building everything from custom dashboard builders that put data at users' fingertips, to social media monitoring apps that track real time conversations, and integrated landing pages that seamlessly handle payments and analytics.

But great code isn't just about features; it's about velocity and sustainability. I've supercharged team productivity by creating reusable scaffolds that slash setup time from a full day to just 2 hours, publishing design systems that ensure consistency, and implementing CI/CD pipelines that make deployments boring (in the best way). As a technical lead, I don't just write code; I mentor developers, run biweekly tech talks where we explore emerging technologies, and translate complex technical decisions into clear documentation that stakeholders actually understand.

From architecting modern UIs with React and Next.js, to building bulletproof APIs with NestJS and Express, to orchestrating databases with PostgreSQL and MongoDB, to containerizing applications with Docker. I love the entire stack. But more than the tools, I'm passionate about solving real problems: making teams faster, users happier, and businesses more successful. Let's build something remarkable together.

Experience

My Professional Journey in Building Scalable, User-Focused Solutions

Frontend Developer at Rolling Glory

January 2025 - March 2026

1 Years 2 Months

  • Led frontend development with React / Next.js / Vue, integrating with backends to deliver responsive, high‑performance web apps.

  • Built and maintained cross‑platform mobile apps using React Native ( iOS & Android ).

  • Created and mantain a reusable starter/scaffold that cut new‑feature setup from 1 day to 2 hours, boosting developer velocity

  • Ran biweekly tech talks ( rotating presenters ) to research and share emerging technologies and best practices

  • Mentored frontend team members. shaping direction, resolving issues, supporting growth, and communicating management updates.

  • Actively researched company and project requirements to align technical solutions with business needs.

  • Documented research findings and delivered clear reports with actionable recommendations to stakeholders

Fullstack Developer at BigBox

February 2022 - December 2024

2 Years 10 Months

  • Delivered 4+ client projects with repeat orders, generating over IDR 1,000,000,000 in project value in a single year.

  • Led a small technical team ( 1 frontend, 1 backend ), owning architecture, delivery plans, code reviews, and client demos to ensure on‑time, high‑quality releases.

  • Designed and built a custom dashboard‑builder for data visualization and reporting, enabling stakeholders to create ad‑hoc reports and access near‑real‑time insights.

  • Developed a social‑media monitoring application to aggregate trends and engagement metrics, supplying marketing and product teams with actionable analytics.

  • Rebuilt and launched a client-facing landing site as full‑stack developer: redesigned UX/UI, optimized performance, implemented payment flow and analytics tracking, and integrated with third‑party systems.

  • Created digital product showcase pages and demos for company events and sales, improving brand visibility and supporting business development.

  • Authored and published a private design system ( component library + documentation ) in GitLab, standardizing UI patterns and speeding up frontend delivery.

Portfolio

A Selection of Projects Showcasing My Skills and Creativity

BigBox Company Profile

BigBox Company Profile

Discover BigBox through our dynamic Company Profile, a gateway to explore innovative products with seamless payments, SSR, real-time notifications, SEO, captivating animations, and multi-language support.

Technology I Use :

NextJS
React
@mui/icons-material
@mui/material
@testing-library/react
animejs
axios
gsap
highcharts
Jest
LegionUI
lodash
moment
next-translate
prop-types
react-hook form
redux-persist
redux
storybook
typescript
BE BigBox Profile

BE BigBox Profile

The backend of the BigBox Company Profile is engineered for security, performance, and scalability. Using ExpressJS as the backbone, it integrates a range of powerful tools and libraries to deliver seamless functionality.

Technology I Use :

ExpressJS
axios
bcryptjs
crypto-js
joi
jsonwebtoken
morgan
multer
nodemailer
postgresql
sequelize
telegraf
winston
xss-clean
BigBox Products Documentation

BigBox Products Documentation

Explore the comprehensive guide to navigating BigBox products with ease. Using React and Docusaurus, BigBox Documentation provides users with clear, concise instructions and resources, ensuring a seamless user experience.

Technology I Use :

React
Docusaurus
SEMAR MRANTASI

SEMAR MRANTASI

Stay ahead with Semar-Mrantasi, a real-time monitoring platform for food stock and prices in Semarang.

Technology I Use :

VUE
React
Highcharts
Pinia
Quasar
Tailwind
Typescript
Leaflet
BigStyle

BigStyle

Introducing BigStyle, a cutting-edge React UI library crafted to elevate your web development experience.

Technology I Use :

React
CSS
Storybook
BigSocial

BigSocial

Discover BigSocial, a powerful social media monitoring platform built with Next.js. It delivers real-time insights and analytics with fast performance and an intuitive interface, helping you stay ahead of trends and make informed decisions.

Technology I Use :

NextJS
React
CSS
Storybook

What They Say About Working With Me

Real experiences from clients and teammates.

Contact Me

Let’s Collaborate and Build Something Amazing

I usually reply within 1×24 hours.
If it’s urgent, reach me on LinkedIn.