Case Studies & Code

Featured Work

A collection of industrial engineering system design, operations research metaheuristics, machine learning models, and full-stack solutions.

Recruiter Focus:

Product Development

PRODUCT DEVELOPMENT

Feb 2026 - Jun 2026

Product Development System Design of RAMU: Personalized Cold-Pressed Wellness Juice App

Engineered RAMU, an end-to-end personalized wellness app ecosystem for PT Pangan Nusantara Sejahtera. Translated voice of customer from 238 respondents into technical product specs using House of Quality (HoQ). Architected ISO 25010 & ISO 25012 compliant UI/UX design systems tailored to individual health metrics and nutritional goals.

SUS Score94.64 (A+)

Survey Sample238 Responses

SLIDESLINKS

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Operations Research

OPERATIONS RESEARCH

Jan 2024 - Apr 2024

Multi-Objective Optimization of Porta Sancta Route Using Ant Colony Optimization

Designed a metaheuristic optimization model to solve the Generalized Traveling Salesman Problem (GTSP) across 9 deaneries in the Archdiocese of Jakarta (KAJ). Built an automated pipeline integrating Google Cloud API for location metadata and Open Source Routing Machine (OSRM) for real-world road distance matrices.

Distance Cut20.54 km

Efficiency Gain19.0%

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Machine Learning

MACHINE LEARNING & CV

Apr 2026 - May 2026

Computer Vision-Based Fruit Freshness Quality Control System Using CNN

Engineered an automated visual inspection system for agricultural quality control. Developed a robust image preprocessing pipeline (CLAHE, HSV/LAB color transformations) and benchmarked MobileNetV2 against YOLOv8 architectures to balance real-time inferencing with lightweight edge deployment.

Model Accuracy99.92%

Deployment TargetEdge Devices

SLIDES

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Information Systems

INFORMATION SYSTEMS

Nov 2025 - Dec 2025

Information System Blueprint & Database Design for Isekai Sushi Bar

Architected an integrated enterprise blueprint to digitize restaurant operations using the SDLC framework. Root-caused operational bottlenecks via Fishbone Analysis, mapped data flows through multi-level DFDs, and structured a normalized 9-table relational database managed across a 39-day WBS project schedule.

Order Latency<30 Seconds

WBS Duration39 Days

SLIDES

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Market Intelligence

MARKET INTELLIGENCE

Oct 2025 - Dec 2025

Market Intelligence & NLP Sentiment Analytics Dashboard for "Warung Nasi Ibu Imas"

Developed an end-to-end market intelligence dashboard analyzing customer sentiment for a prominent culinary business. Built automated scrapers via Apify to pull Google Maps reviews and peak hours, processing unstructured text through NLP (Sentiment Analysis & LDA Topic Modeling) to extract Net Sentiment Scores (NSS).

Analytics Modules3 Core Zones

Data ExtractionApify Scraping

SLIDES

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IoT

INTERNET OF THINGS

Nov 2024 - Jan 2025

Go Smartlock: Automated Access Control & Lab Occupancy Embedded System

Designed an embedded door automation prototype to regulate lab security and capacity density. Formulated the system logic via Boolean minimization in WinLogiLab and built the hardware stack using an Arduino Uno R3, 4x4 matrix keypad, LCD status display, and servo actuator.

Core ControllerArduino Uno R3

Logic ModelingWinLogiLab

SLIDES

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Chemistry

Jun 2022 - Mar 2023

PRACTICAL STUDY OF THE USAGE OF ARTIFICIAL SWEETENERS AS A SUBSTITUTE OF SUCROSE IN THE MAKING OF ETHANOL THROUGH FERMENTATION REACTION WITH Saccharomyces cerevisiae

Research paper on the effects of artificial sweeteners as a substitute for sucrose in ethanol production through fermentation using Saccharomyces cerevisiae. The study investigates the fermentation process, sugar consumption, and ethanol yield with different sweeteners.

Fermentation Time3 Days

LINKS

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System Initialization

Compiling data layers & executing layouts...

Case Studies & Code

Featured Work

A collection of industrial engineering system design, operations research metaheuristics, machine learning models, and full-stack solutions.

Recruiter Focus:

Product Development

PRODUCT DEVELOPMENT

Feb 2026 - Jun 2026

Product Development System Design of RAMU: Personalized Cold-Pressed Wellness Juice App

SUS Score94.64 (A+)

Survey Sample238 Responses

SLIDESLINKS

Interactive Case Study→

Operations Research

OPERATIONS RESEARCH

Jan 2024 - Apr 2024

Multi-Objective Optimization of Porta Sancta Route Using Ant Colony Optimization

Distance Cut20.54 km

Efficiency Gain19.0%

Interactive Case Study→

Machine Learning

MACHINE LEARNING & CV

Apr 2026 - May 2026

Computer Vision-Based Fruit Freshness Quality Control System Using CNN

Model Accuracy99.92%

Deployment TargetEdge Devices

SLIDES

Interactive Case Study→

Information Systems

INFORMATION SYSTEMS

Nov 2025 - Dec 2025

Information System Blueprint & Database Design for Isekai Sushi Bar

Order Latency<30 Seconds

WBS Duration39 Days

SLIDES

Interactive Case Study→

Market Intelligence

MARKET INTELLIGENCE

Oct 2025 - Dec 2025

Market Intelligence & NLP Sentiment Analytics Dashboard for "Warung Nasi Ibu Imas"

Analytics Modules3 Core Zones

Data ExtractionApify Scraping

SLIDES

Interactive Case Study→

IoT

INTERNET OF THINGS

Nov 2024 - Jan 2025

Go Smartlock: Automated Access Control & Lab Occupancy Embedded System

Core ControllerArduino Uno R3

Logic ModelingWinLogiLab

SLIDES

Interactive Case Study→

Chemistry

Jun 2022 - Mar 2023

PRACTICAL STUDY OF THE USAGE OF ARTIFICIAL SWEETENERS AS A SUBSTITUTE OF SUCROSE IN THE MAKING OF ETHANOL THROUGH FERMENTATION REACTION WITH Saccharomyces cerevisiae

Fermentation Time3 Days

LINKS

Interactive Case Study→