Anggara Roshandi Putra

the problem

Long stories are hard to keep straight: characters, places, and lore end up scattered across chapters. And most AI writing tools try to write the story for you instead of helping you think.

my role & what I did

Founder · Full-stack Developer

• Founded the product and built it end to end, from frontend to backend.
• Built auto-linking of characters, places, and lore across chapters.
• Added Word/PDF manuscript import so writers can bring their existing drafts.
• Built an AI assistant (Claude Haiku) that asks questions to unblock writers instead of writing for them.

what it looks like

built with

• React
• Vite
• Go
• MongoDB
• Google Cloud
• Claude

the problem

Clinics need one place to manage patient records, appointments, and prescriptions.

my role & what I did

Software Engineer

• Build .NET backend services and APIs serving DoctorTool's mobile app and web platform.
• Ship features end to end across backend, web, and mobile with the product and design teams.
• Discuss technical decisions directly with the CTO.

built with

• .NET
• React
• TypeScript

the problem

Patients of clinics across Indonesia need one app for bookings, online consultations, e-prescriptions, and their health logs.

my role & what I did

Software Engineer

• Develop the React Native patient app: bookings, online consultations, e-prescriptions, and health logs.
• Ship releases through CI/CD, with JS-only fixes delivered quickly via Hot Updater OTA updates.
• Monitor stability with Firebase Crashlytics and Analytics to find and fix production crashes and performance issues.

built with

• React
• TypeScript
• .NET
• Firebase

the problem

Young writers grow faster with a mentor, but finding one and booking a session isn't easy. Writeen connects writers with mentors in one platform.

my role & what I did

Co-Founder · Backend & Web

• Single-handedly built the Go (Gin) REST API powering three frontends (mentor, tutor, admin).
• Built the web product with Next.js, TypeScript, and Tailwind CSS.
• Delivered JWT role-based access, chat and video consultations, Play-Lit, articles, and email notifications.
• Integrated Midtrans payments with webhooks that unlock paid features automatically.
• Owned technical direction and infrastructure: MongoDB, Google Cloud Storage, Docker on a VPS, release pipelines.

built with

• Gin
• Go
• Next.js
• TypeScript
• Tailwind CSS
• MongoDB
• Docker
• Google Cloud

the problem

In an emergency the internet and cell network can go down exactly when people need to find each other.

my role & what I did

Mobile Engineer · 3rd place, Garuda Hacks 7.0

• Led the mobile engineering in React Native at Garuda Hacks 7.0 (3rd place, Safety Track).
• Built phone-to-phone locating over a Bluetooth Low Energy mesh, with no internet or cell network required.
• Designed a compact 19-byte binary wire protocol for the mesh.
• Added native Android emergency haptics that bypass silent mode.

built with

• React
• Android
• Bluetooth

the problem

A sports coaching service across Jabodetabek needed one website for its classes, coach profiles, registration, and a blog.

my role & what I did

Full-stack Developer

• Built the website in Svelte: classes, coach profiles, registration, and blog.
• Built a Go backend for managing the blog.

built with

• Svelte
• Go

the problem

Bring ChatGPT into WhatsApp, where people already chat every day.

my role & what I did

Creator · Open Source

• Built a WhatsApp chatbot connected to ChatGPT through LangChain, in TypeScript.
• Open-sourced it on GitHub.

built with

• WhatsApp
• LangChain
• TypeScript

the problem

A wedding needs more than a pretty invitation: hosts also need to know who actually showed up.

my role & what I did

• Built a wedding invitation web app with a QR-code attendance system (2025).

the problem

A Mandarin education provider needed a site for its courses and study-in-China programs.

my role & what I did

• Built the course and study-in-China website.

built with

• Next.js
• Tailwind CSS