Top skills
- .NET
- LangChain
- Laravel
Main tools
- Azure OpenAI
- Git
- Ollama
About
Projects
EDA Automation
Designed an end-to-end unstructured-data pipeline (PDF → image rasterization via PyMuPDF → vision-LLM feature extraction → Qdrant vector store for RAG) that automates EDA report generation.
- Status: development
- LangChain
- Azure OpenAI
- FastAPI
- QDrant
- REST API
PT Harbot Indonesia
https://www.harbot.co.id/Designed and built a company profile website for PT Harbot Indonesia (metal works, fabrication & construction) using Vite, React, and Tailwind CSS, with WhatsApp integration, a centralized site-config architecture, and deployment across Netlify and Vercel.
- Status: live
- React
- Vite
- Tailwind CSS
- Vercel
- Netlify
PSM Info
Applied the same LLM/RAG analytical framework to Pit Stop Management data, covering a broader and more validated operational dataset for service performance analysis.
- Status: development
- LangChain
- Azure OpenAI
- FastAPI
- QDrant
- Streamlit
- PostgreSQL
Competitor Info
Built an LLM-powered competitive intelligence assistant analyzing UT (Komatsu) vs. competitor products across Product, Price, Promotion, and Place dimensions using RAG and Text-to-SQL for aggregated trend analysis.
- Status: development
- LangChain
- Azure OpenAI
- FastAPI
- QDrant
- Streamlit
- PostgreSQL
Fuel Analytics Dashboard
Fuel sensor analytics dashboard built for PT United Tractors Tbk, serving 3+ enterprise customers across Indonesia. Backend engineered with ASP.NET / C# / PostgreSQL. Achieved 35% query latency reduction through strategic indexing and schema optimization. Delivered in 2.5 months from scratch to production.
- Status: live
- ASP.NET
- C#
- PostgreSQL
- Azure DevOps
- REST API
MySQL Index Optimization - Published Research
https://drive.google.com/file/d/1opQuhGF6IuW2MKw4BtuPnCIz6Zb0kZSt/view?usp=sharingPeer-reviewed research published in Dinamika Rekayasa journal (Vol. 20 No. 1, 2024). Designed a controlled experiment under 100 concurrent users using Apache JMeter, applying MySQL indexing and server-side DataTables on a CodeIgniter 4 system. Results 94.06% average query efficiency gain, 99.70% reduction in rows scanned, 25.86% system performance improvement.
- Status: live
- MySQL
- CodeIgniter 4
- Apache JMeter
- Performance Engineering
- Research
Delima Sri Gemilang Ticketing System
https://delima.ibos.id/End-to-end online ticketing system for PT Delima Sri Gemilang, a bus rental company in Riau. Features iframe-embedded ticketing UI, payment gateway integration (Midtrans), and real-time push notifications via WhatsApp (Zenziva) and email (Mailgun). Built during iBos internship.
- Status: live
- Flask
- PostgreSQL
- Midtrans
- Zenziva
- Mailgun
jARict - AR Virtual Try-On
https://jarictku.com/Augmented Reality web app for virtually trying on traditional Javanese shirts. Built as a collaboration project for the Informatics Engineering Student Association UDINUS. Responsible for the full backend REST API, ER diagram design, database schema, and production server setup. Stack Laravel, MySQL, AR.js, A-Frame.
- Status: live
- Laravel
- MySQL
- AR.js
- A-Frame
- Tailwind CSS
WebGIS Intelligence
https://intellegence.abbauf.com/Geospatial intelligence web portal integrating 500+ heterogeneous GIS datasets into a single unified platform. Built during MSIB Kampus Merdeka at PT Abbauf Mulia Konsultan Teknologi. Achieved 50% reduction in development time and 50% portal query performance improvement through spatial indexing (PostGIS) and modular widget design.
- Status: live
- CodeIgniter 4
- PostgreSQL
- PostGIS
- OpenStreetMap
- REST API
Tabpedia - Project Management App
https://pmdev.tabpedia.com/Full front-end of a project management SaaS application built solo as a contract at PT Graphie Global Interaktif. Delivered 7+ Figma UI prototypes and maintained 100+ clean ReactJS component files. Integrated REST APIs and implemented responsive, cross-browser compatible layouts.
- Status: live
- ReactJS
- Tailwind CSS
- REST API
- Figma
- Jest
Portfolio Website
https://renjiroazhar.github.io/Personal portfolio and branding site built with GatsbyJS and Tailwind CSS, deployed via GitHub Pages. Serves as a single source of truth for experience, projects, and contact. Used actively in job applications and recruiter outreach.
- Status: live
- GatsbyJS
- Tailwind CSS
- GitHub Pages
- YAML-driven
E-Guest - Digital Guestbook
https://github.com/renjiroazhar/e-guest/Digitized 100% of a conventional paper-based guest registration system for SMK Negeri 8 Semarang. Integrated with messaging apps and automated notification bots. Improved guest registration efficiency by 70%. Built with PHP, JavaScript, and Bootstrap.
- Status: live
- PHP
- JavaScript
- Bootstrap
- WhatsApp Bot