GitHub-backed technical portfolio.

Implemented the NIST SP 800-86 method to validate mobile forensic investigation workflows on Android device evidence in a POLDA Jawa Timur case study.

Performed forensic acquisition, artifact extraction, hash validation, timeline analysis, and chain-of-custody documentation to support investigative findings.

• Performed Android evidence acquisition using Cellebrite UFED, ADB, and FTK Imager.
• Validated evidence integrity using MD5 and SHA-256 hashing.
• Analyzed WhatsApp artifacts, PDF documents, and timeline activity.

Built an Android English pronunciation learning app using speech recognition and real-time feedback to personalize the learning experience.

Delivered a production-level mobile app in a cross-functional team of six using Agile Scrum, Git-based workflow, Kotlin, MVVM architecture, and Google Cloud Speech API integration.

• Integrated Speech-to-Text and NLP scoring logic for pronunciation feedback.
• Built authentication and cloud sync with Firebase Authentication and Firestore.
• Designed modular UI components for maintainability and future feature growth.

Developed a short-link management platform with Vue.js, Vue Router, Firebase Authentication, and Firestore storage.

Applied URL validation and restricted redirect handling to reduce malicious input risk and support safer short-link generation.

• Built reusable frontend components and route-based navigation.
• Connected Firebase services for secure link storage and access control.
• Implemented input validation for safer redirect behavior.

Designed and configured subnetting, static routing, OSPF, VLAN segmentation, and multi-router network scenarios.

Tested topologies and troubleshooting workflows using Cisco Packet Tracer and Wireshark, then analyzed traffic patterns to optimize routing performance.

• Configured routing and segmentation across multi-router scenarios.
• Troubleshot packet flow and network behavior with Wireshark.
• Documented topology decisions and performance observations.

Explored quantum computing concepts and exercises through Jupyter Notebook-based coursework.

Created an academic notebook repository for experimenting with quantum computing foundations and computational exercises.

• Organized quantum computing practice work in a reproducible notebook format.
• Used notebook-based exploration for technical documentation and experimentation.
• Maintained the project as a public academic reference on GitHub.

A Python coursework repository for integrative programming practice and implementation exercises.

Built a public record of Python-based coursework that supports the software engineering side of the portfolio.

• Practiced Python implementation patterns in an academic setting.
• Maintained code examples as part of integrative programming coursework.
• Added a public GitHub artifact that complements security and networking work.