hey there, I'm

M. Julius Saputra

Mobile & frontend engineer who shipswith AI

// my loopidea → build →ship↺ repeathuman in the loop ✓

currently building Incocue, a teleprompter & meeting assistant

shipping since 2019React NativeFlutterNext.jsClaudeChatGPTGeminiExpo

React Native✱Expo✱Flutter✱React✱Next.js✱Express✱Laravel✱JavaScript✱TypeScript✱Dart✱PHP✱HTML✱CSS✱Tailwind✱MySQL✱MongoDB✱Figma✱Redux✱MobX✱Zustand✱BLoC✱Firebase✱React Native✱Expo✱Flutter✱React✱Next.js✱Express✱Laravel✱JavaScript✱TypeScript✱Dart✱PHP✱HTML✱CSS✱Tailwind✱MySQL✱MongoDB✱Figma✱Redux✱MobX✱Zustand✱BLoC✱Firebase✱

About me

(the short version)

me, Lahat → the internet

I'm Julius, an engineer from Indonesia who has been building mobile and web apps since October 2019: food delivery, fintech, sales tools, POS, attendance systems, e-commerce, real estate, and AI agents.

These days my workflow is AI-native. I use Claude every day to code, debug and refactor, and I build my own agents to automate my workflow and the busywork around it. I like sharing how I work, so I also make short videos about dev and AI.

I finished my Computer Science degree while working full-time, which taught me to ship carefully and fast.

// by the numbers

2019shipping apps since

30+projects delivered

15+certificates earned

based in Lahat, ID · GMT+7 · working worldwide

soft skills

Strong analytical skills
Effective problem-solving
Quick adaptability
Teamwork
Time management

languages

Indonesian · NativeEnglish · B1

What I can do

for you

Forward Deployed Engineer
I join your team and ship AI into your real systems: agents, LLM features and automations, live in production.
Mobile & Web Development
iOS and Android apps with React Native and Flutter, plus web frontends in React and Next.js, built for performance and maintained after launch.
UI/UX Design
Creating beautiful and intuitive user interfaces that enhance user experience, with focus on mobile design.
Problem Solving
Solving your problems with code and algorithms.

* scope negotiable · deadlines respected · coffee non-negotiable

Career, level by level

click a level to open it

LV 5Oct 2024 – now
Frontend Engineer
ABNK (Singapore) Pte Ltdnow playing
- Leading the ABNK app for iOS and Android in React Native
- Unit tests and CI/CD on CircleCI for testing, linting and security
- Product landing page with React, GSAP ScrollTrigger and Matter.js
LV 4Mar 2022 – Sep 2024
Frontend Developer
Rebelworks – Recurtech
- Sales app with a loyalty system and performance tracking, maintained on the Play Store
- Optimized a healthcare web app with Next.js and TypeScript using a white-label setup
- E-commerce prototype app
LV 3Aug 2021 – Feb 2022
Frontend Developer (part time)
PT. Akar Inti Teknologi
- Food delivery app: location search, profiles and payments (Expo, MobX, Firebase, Maps)
- Automotive marketplace web app with a loan calculator (React, Redux)
LV 2Jul 2020 – Dec 2021
Mobile App Developer
PT. Musafir Cakra Persada
- Payment platform with bank transfers and e-wallet integration
- E-commerce app with catalog, cart and address management
- POS system in Flutter for retail businesses
LV 1Oct 2019 – Jun 2020
Junior Mobile App Developer
PT. Diginova Kreasi Indonesia
- Bicycle community app with maps, event tracking and real-time location (Socket.io)
- Fintech app for digital payments with React Native and Firebase
- Banking monitoring system with multi-role access and real-time reporting
side questAug 2021 – Aug 2025
B.Sc. Computer Science
Universitas Dian Nusantara
Graduated with a 3.78 GPA while working full-time (weekend classes)

achievements unlocked (14)

show all certificates ↓

Things I shipped

psst, you can drag them

Danalyse - AI Money Tracker

Danalyse was founded with a simple mission: make personal financial management as easy as chatting with a friend. We believe AI technology should help, not complicate your life.

react native
expo
typescript
zustand

open ↗

Merchant ABNK

Merchant Abnk is a mobile application that displays a list of merchants at abnk, with authentication by phone number, and verify by code otp.

react native
typescript
redux

open ↗

Listing Product App

This is a simple e-commerce application built with React Native that allows users to view products, add them to their cart, and proceed to checkout.

react native
typescript
redux

open ↗

Iqlix Ordering Ticket Movie

Iqlix Ordering Ticket Movie is a mobile application that allows users to order tickets for movies, but this only UI, not the full application.

react native
typescript

open ↗

MovieApp-v2

Movie App is a mobile application that showcases a list of popular and top-rated movies, along with detailed movie information, favorite movies, cast details, and genres. Built using Expo and React Native, this app integrates various additional libraries for smooth animations and efficient data management.

react native
expo
typescript
mobx

open ↗

Todo App - Clean Architecture

Todo App is a simple task management application built using Expo React Native with a clean architecture implementation.

react native
expo

open ↗

Edukring

EduKring is a mobile application specifically designed to help students in Indonesia manage their academic life more efficiently. This design was created as a UI/UX case study.

figma

open ↗

Presensi Basarnas

Presensi Online Basarnas is an application for attendance tracking. Its main features include recording routine duty attendance, standby attendance, SAR operation attendance, as well as leave or official duty attendance.

typescript
mobx
expo
react native

open ↗

DBO Salesman App

DBO Salesman App is a mobile application designed as a tool for salesmen, aimed at measuring the sales force's activities on the DBO service.

javascript
react native
code push
firebase
moengage

open ↗

Orion

Orion (Operational Report Monitoring Online) is a mobile application for managing online reports. It includes various features such as cash funds, ATM funds, and more. Among these features, users can input data, approve/reject data, view data, download data, comment on data, and upload data. The application has nine different roles for each feature.

react native
javascript
php
laravel

eFOOD by eDOT

eFOOD by eDOT is a food delivery service platform that collaborates with various restaurants and merchants in your area, making it easier for you to enjoy culinary experiences without the need to queue. Additionally, eFOOD offers a Pickup service, allowing you to collect your order yourself and choose your preferred pickup time.

react native
typescript
expo
mobx
firebase

open ↗

Warung POS

Warung POS is a point-of-sale application for local shops, designed to help increase sales efficiency, track expenses, and manage payments effectively.

flutter
dart
firebase
bloc
sqlite

Ditonton

Ditonton is an application for viewing movie and TV show information. It was developed using a starter project from Dicoding as the final submission for the "Becoming a Flutter Expert Developer" class on Dicoding.

flutter
dart
bloc
firebase

HaxorKit

HaxorKit is a powerful penetration testing tool designed to assist cybersecurity professionals in identifying vulnerabilities and securing systems. It provides a suite of features that enhance security assessments by automating various scanning and reconnaissance processes. Key Features: - Admin Finder – Detects admin login pages of websites. - Directory Scanner – Scans website directories and hidden files for potential vulnerabilities. - Nmap – Performs network scanning and reconnaissance to discover open ports and services. - Google Dork – Utilizes advanced search queries to find sensitive information indexed by search engines. - SQL Scanner – Detects potential SQL injection vulnerabilities in web applications. - Reverse IP Lookup – Identifies websites hosted on the same server. - Subdomain Scanner – Discovers subdomains associated with a target domain. - Email Spider – Extracts email addresses from websites for reconnaissance purposes.

javascript
react native
nodejs
expressjs

open ↗

BikePitstop

BikePitstop is a cycling community application with various features. Users can find nearby parking spots, bicycle repair shops, hospitals, and police stations. It also includes a Panic Button feature, allowing users to request assistance from fellow cyclists within the area.