Yohanes Paulus Ardha SK A Résumé of Sorts
Synopsis
Fullstack Web Developer and Informatics graduate with proven track record in developing enterprise Point of Sales (POS), ERP, operational platforms, and interactive kiosk systems. Proficient in Laravel, PHP, PostgreSQL, MySQL, GenAI tools, and full-lifecycle software delivery.
Career History
Project Lead Developer — Ascott Indonesia
Jakarta · Contract
May 2026 – Jul 2026
- Built a POS system, operations dashboard, and self-ordering kiosk solo using Laravel, Bootstrap, and PostgreSQL for ASR Festival 2026, handling 4,500+ visitors across 7 consecutive days with zero transactional downtime.
- Built real-time sales reporting and dynamic catalog synchronization, with automated receipt printing integrated via the kiosk's built-in thermal printer.
Fullstack Web Developer — PT. HSQA Makmur Abadi (Jooal.id)
Yogyakarta · Full-time
April 2025 – April 2026
- Built a multi-tenant ERP platform (Laravel + PostgreSQL) serving 12+ distinct business verticals — including Cafe & Restaurant, Hotel & Lodging, Auto Repair Shop, Education, Pharmacy, Warehousing, Sales Monitoring, Rental Services, Livestock Farming, Architecture & Interior Design, Gym & Studio, and Retail — with an architecture supporting dynamic multi-branch scaling without structural changes to the system.
- Designed flexible database schemas and business modules (inventory, POS, sales monitoring, kitchen display systems) configurable to each client's specific industry needs.
- Synchronized multi-branch retail transactions in real time and streamlined operations across fulfillment, kitchen display systems, and administrative financial exports.
Fullstack Web Developer — Parish Community & Empowerment Initiatives
Yogyakarta · Contributor
Project & Community
- Built an operational admin page for managing website content and homepage information for a parish website.
Licenses & Certifications
Code Generation and Optimization Using IBM Granite — IBM
Applied IBM Granite models for code generation, software optimization, and intelligent programming tasks
Issued August 2025
IBM Granite Models for Software Development — IBM
Credential ID: MDL-567
Issued August 2025
Code Generation and Optimization Using IBM — IBM
Credential ID: MDL-566
Issued August 2025
Use Generative AI for Software Development — IBM
Credential ID: MDL-504
Issued August 2025
Certified Secure Computer User (CSCU v2) — EC-Council
Cybersecurity fundamentals & secure computing certification · Score: 47/50 (94%)
Issued June 2023
Education
Universitas Atma Jaya Yogyakarta
Bachelor of Computer Science (S.Kom) in Informatics · GPA 3.54 / 4.00
August 2022 to August 2026
Skills & Technologies
Core Tech Stack
Laravel, PHP, JavaScript, PostgreSQL, MySQL, Git, Linux VPS, IBM Granite / GenAI for Software Engineering, ERP & POS Systems