// FRONTEND ENGINEER

Ahmed Rayhan
Primadedas

Frontend Engineer

Design systems built to hold — from a two-person startup to a national health ministry.

// ABOUT01

Engineer, builder, organizer

Ahmed Rayhan Primadedas speaking on stage

I build design systems that don’t break — whether the team is two people or the platform serves a country. Seven years doing that in React and Next.js, and teaching 1,800+ developers to do the same.

Frontend engineer with 7+ years specializing in React and Next.js, with a track record of building scalable systems from the ground up — from clean architecture and design systems to CI/CD pipelines that cut hosting costs by 71%. Most recently led frontend at a US-based edtech startup, managing a team across US–Indonesia timezones, while building national-scale healthcare systems for UNDP and Indonesia’s Ministry of Health. Beyond engineering, I contribute to the developer ecosystem through community organizing and regular technical speaking on frontend and Firebase topics.

Also a mentor at GoTo Impact Foundation and instructor at Skydu Academy.

This site runs on Prima UI — the design system I built from scratch. // PRIMA UI

// LOCATION
Depok, Indonesia
7+Years of engineering
71%Hosting costs cut at Anify
1800+GDG Depok members led
10+Technical talks delivered
// SELECTED WORK02

Things I've shipped

// PRODUCTS03

Things I own and build

// LIVE

Prima UI

Design system

My personal design system — engineered minimalism: an ice-blue base, exactly one electric cobalt accent, Clash Display caps, and mono // labels. 59 React components with inline-style tokens, a Tailwind v4 bridge, and Storybook docs. This site is built with it.

ReactTypeScriptStorybookTailwind CSS
Visit
// IN THE WORKSHOP

Next product

Coming soon

The next digital product is in the workshop. Details land here when it ships.

// PLANNED

And another

Planned

Reserved for what comes after that. Watch this space.

// EXPERIENCE04

Professional journey

2025 — 2026

Frontend Engineer Lead · Anify LLC

Led frontend architecture for a SaaS platform, managing a team of 2 frontend engineers across US–Indonesia timezones.

ReactNext.jsTypeScriptTailwind CSSRadix UI
2022 — NOW

Frontend Developer (Part-Time) · Badr Interactive

Frontend developer for SMILE, a national-scale healthcare logistics platform serving Indonesia’s Ministry of Health, UNDP Indonesia, UNICC, and UNDP Global.

ReactTypeScriptNext.jsReact NativeRemix
2020 — 2022

Frontend Developer · Founderplus

Solo developer for the Founderplus accelerator platform serving 50+ startup applications.

ReactNext.jsNode.jsTailwind CSSStorybook
2019 — 2020

Frontend Developer & Course Instructor · Skydu / Skydu Academy

Frontend developer for a B2B e-learning SaaS platform serving 10+ institutional clients with cloud and on-premise solutions.

ReactReact NativeVue.jsNext.jsChart.js
2017 — 2018

Web Designer & Frontend Developer · Integrasi Media Kreasi

Delivered frontend for major Indonesian insurers: CHUBB, Prudential, BCA Life, BCA Finance, Panin, Cigna, Sunlife, and BFI Life.

AngularIonicObjective-CSASSPhotoshop
// FREELANCE05

Independent work

// 2022 — 2024

Fullstack Developer (Freelance)

Founderplus

Managed end-to-end development of the accelerator platform as a freelance fullstack developer.

ReactNext.jsNode.jsDocker
// 2023

Fullstack Developer (Project)

Universitas Indonesia × Badr Interactive

Built the Unit Cost RS hospital costing system end to end with Remix, Prisma, and MySQL.

RemixPrismaMySQL
// 2019 — 2020

Frontend Developer (Outsourced)

Client projects via Skydu

NFJuara: Vue.js frontend with payment gateway integration.

Vue.jsVuexNext.jsChart.js
// ACADEMIC06

Education & mentoring

Education

// 2019 — 2024
Bachelor of Computer Science — Informatics Engineering (GPA 3.67/4.00)
STT Terpadu Nurul Fikri

Coursework: data structures and algorithms, web application development and security, cyber security, UI/UX, data science fundamentals.

ReactNext.jsTypeScriptJest

Mentoring & teaching

// 2022 — 2023
Fullstack & Frontend Mentor (Apprenticeship)
GoTo Impact Foundation

Fullstack mentor for Generasi Gigih 3.0, guiding Kampus Merdeka students through an intensive React and Node.js bootcamp.

ReactNode.jsREST API
// 2020
Bootcamp Instructor
Skydu Academy

Created a comprehensive React curriculum and recorded professional video courses delivered on the company’s own e-learning platform.

ReactJavaScript
// SPEAKING & COMMUNITY07

On stage and in the room

// 2019 — NOW

Google Developer Groups Depok

Organizer (2025 — now) · Co-Organizer (2019 — 2025)
  • Leading a community of 1,800+ members with 350–600 participants per event.
  • Organizing technical workshops, conferences, and knowledge-sharing sessions on Google technologies and modern web development.
  • Maintaining direct relationships with Google Community Managers.
// 2020 — 2021

Google Developer Student Clubs

Lead
  • Selected as one of 45 DSC Leads in Indonesia by Google Developers.
  • Led a campus tech community of 300+ active members; membership grew 50%.
  • Organized 8+ workshops on frontend development, Firebase, UI/UX, and Cloud Study Jams.
1800+community members
600participants per event
10+technical talks
Firebase//React//Design systems//TypeScript//Career//Frontend//
Firebase//React//Design systems//TypeScript//Career//Frontend//

Talks

2025Firebase for Frontend EngineersGDG Depok DevFest
2025Scaling React Codebases with Clean ArchitectureGDG Depok Meetup
2024Design Systems That Survive the TeamGDG Depok Meetup
2024From Legacy to TypeScript: Rewriting in ProductionGDG Depok DevFest
2023Firebase Authentication Deep DiveCloud Study Jam
2023React State Management in 2023GDG Depok Meetup
2023Frontend Career Paths in IndonesiaGenerasi Gigih
2021Building Realtime Apps with FirebaseGDSC Workshop
2020React Fundamentals CodelabGDSC Workshop
2020UI Engineering: From Mockup to ComponentGDSC Workshop

Awards

2018
1st Place, Web Design Competition (React.js)
STT Nurul Fikri
2018
3rd Place, National Informatics Competition
RISTEKDIKTI / PENS
2017
Top 10 Applications, Indosat Wireless Innovation Contest
IWIC
// WRITING08

Latest from the blog

// CONTACT09

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