Reza Arya Wijaya Portfolio

Reza Arya Wijaya

 

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Hi, I'm Reza 👋

I ship data-driven products as  , from model experiments to backend APIs.

Reza Arya Wijaya
Python

Python

PHP

PHP

JavaScript

JavaScript

TypeScript

TypeScript

TensorFlow

TensorFlow

Keras

Keras

PyTorch

PyTorch

Ultralytics YOLO

Ultralytics YOLO

Scikit-Learn

Scikit-Learn

OpenCV

OpenCV

Mediapipe

Mediapipe

XGBoost

XGBoost

Flask

Flask

Laravel

Laravel

Astro JS

Astro JS

Flutter

Flutter

Mastra AI

Mastra AI

LangChain

LangChain

LangFuse

LangFuse

RoboFlow

RoboFlow

Puppeteer

Puppeteer

Pandas

Pandas

NumPy

NumPy

Matplotlib

Matplotlib

Seaborn

Seaborn

MySQL

MySQL

Microsoft SQL Server

Microsoft SQL Server

Firebase

Firebase

Postgres

Postgres

Supabase

Supabase

Git

Git

Docker

Docker

N8N

N8N

Professional Experience

DOT Indonesia

Malang, Indonesia

Jan 2026 – Feb 2026

Migrated BikinKonten's generation flow from legacy Puppeteer automation to the Higgsfield API, reducing computational overhead by 40%. Engineered a fault-tolerant real-time delivery system with SSE and Supabase polling, then stabilized releases by building CI/CD pipelines and integrating Sentry for production error monitoring.

TypeScript

TypeScript

Next JS

Next JS

Supabase

Supabase

Higgsfield

Higgsfield

AI Engineer Freelance

DOT Indonesia

Malang, Indonesia

Jul 2025 – Dec 2025

Engineered an autonomous customer-service agent with Mastra AI and OpenRouter LLMs, using RAG-enabled context retrieval and an n8n sub-agent to automate Google Sheets booking management and accelerate off-hours response times by 90%. Integrated n8n with GitLab, Sentry, and Google Sheets to reduce manual bug-tracking and project-reporting work by 45%, while building an internal Vertex API content tool and Puppeteer-based Higgsfield automation to streamline enterprise content generation workflows.

Python

Python

Mastra AI

Mastra AI

LangChain

LangChain

LangFuse

LangFuse

OpenRouter

OpenRouter

N8N

N8N

AI Engineer Intern

PT. Graha Sarana Gresik

Gresik, Indonesia

Jan 2025 – Jul 2025

Working on a basic NLP model for digital mailing system within the Engineering and Development division. Developed a hand tracking model for side project using Mediapipe, OpenCV, and PyGUI, achieving real-time performance for mouse gesture control.

Python

Python

Mediapipe

Mediapipe

OpenCV

OpenCV

PyGUI

PyGUI

Machine Learning Engineer Intern

Projects Showcase

Data Analytics Project (Personal)

F1 Telemetry Analytics

Thesis Project

EEG-Based Biometric System

AI Project

BikinKonten

AI Project

DoTalk

Website App

Digital Office (DOF)

Deep Learning

Real-Time Emotion Detection

Mobile App

FaceCount (Attendance Counter Application Based on Gender)

Website App

Posyandu Information System

Machine Learning

Survival Prediction Using Titanic Dataset

Ready to Team Up?🔥

Let's Connect and Create Something Amazing!