Full-stack web developer with 10+ years of experience building ERP, POS, HRIS, and CRM systems for multi-branch restaurant groups. Comfortable with native PHP, MySQL, and modern JavaScript (React / Next.js), and highly interested in long-term remote collaboration.
Objective: Full-stack web developer with 10+ years of experience building ERP, POS, HRIS, and CRM systems for multi-branch restaurant groups. Comfortable with native PHP, MySQL, and modern JavaScript (React / Next.js), and highly interested in long-term remote collaboration.
2023 : Certified Internal Quality Auditor ISO 9001:2015- Full-stack developer & IT manager with 10+ years experience, and certified Internal Quality Auditor ISO 9001:2015 — competent in system documentation, process improvement, compliance, and structured development workflow.
– Assistant Staff, ELMICOM Computer Institute, Ngawi
During my early years at ELMICOM, I assisted instructors and students in fundamental computer operations, hardware troubleshooting, and basic software training. This role introduced me to structured learning environments and helped build my foundation in computer education. I supported class preparation, device setup, and simple maintenance tasks that ensured smooth daily operations. The experience shaped my discipline and technical curiosity, exposing me to early database systems and practical PC configurations. It also strengthened my communication skills, as I interacted with learners from various backgrounds. This was the starting point of my journey into IT and software development.
I supported the school’s computer laboratory, assisting both teachers and students with technical issues, device configuration, and basic programming subjects. My responsibilities included maintaining hardware, installing operating systems, setting up network connections, and preparing lab materials for practical classes. I also helped design simple exercises for students learning office applications and early coding. This experience nurtured my ability to provide clear technical guidance to younger learners, while also giving me early exposure to academic IT environments. It strengthened my troubleshooting skills and prepared me for future roles involving training, computer repair, and system development.
As a private computer instructor, I taught a wide range of subjects including Microsoft Office, basic programming, accounting applications, and hardware fundamentals. I developed personalized learning materials tailored to each student’s pace, improving their practical computer skills for academic and professional needs. This role sharpened my pedagogical skills, patience, and adaptability in delivering technical knowledge. It also exposed me to diverse learning challenges, helping me design more effective teaching methods. Many of my students advanced to vocational and university programs, and the experience strengthened my understanding of how technology education can empower personal growth.
– Warehouse Supervisor & Computer Technician, UD TEPAT, Surakarta
I managed warehouse stock records, performed inventory audits, and handled computer maintenance for the company. My role combined operational logistics with IT responsibilities. I implemented small-scale digital tracking for spare parts, helping the business improve accuracy and reduce losses. I also repaired computers, installed software, and ensured the system ran smoothly for daily operations. This period taught me practical supply chain processes and how digital tools improve efficiency. The experience became a foundation for my later ERP and inventory system development work, where I integrated logistics workflows with IT automation.
I developed several desktop-based applications to support company operations, including inventory, procurement, and accounting tools built using VB6. My role required both software development and on‑site technical troubleshooting. I collaborated with administrative staff to analyze workflows and convert them into efficient digital processes. I also maintained PCs, performed network checks, and integrated small automation solutions for internal data entry tasks. This experience broadened my real-world understanding of how software interacts with daily operations and strengthened my ability to build practical business applications tailored to specific needs.
I created desktop applications to support customs documentation, export tax forms BC40 with ASP(web based) and VB6(desktop) and Microsoft SQL database, and internal data processing. Working in a manufacturing environment exposed me to industrial workflows and compliance requirements. I analyzed existing manual systems and converted them into structured digital tools using VB6. My tasks included integrating data validation, implementing document templates, and ensuring compatibility with the company’s operational procedures. I also provided computer maintenance and troubleshooting. This project enhanced my ability to design enterprise-oriented applications that handle structured and regulated data in a production environment.
I serve as the primary developer for various digital systems used across 20+ restaurant branches, including POS, ERP, HRIS, CRM, finance dashboards, purchasing, and inventory control. I design, build, and maintain systems handling 300–400 daily transactions with databases exceeding 11 GB. My work includes backend PHP 5.6 development, MySQL optimization, automation tools, AI integrations, OCR utilities, security bots, and multi-client applications. I also handle system upgrades, branch deployments, training, and long-term support. This role represents my most extensive experience, shaping me into a fullstack native developer focused on efficiency, stability, and scalable real-world solutions.
Research Board
– Research on Using Copper as a Hardware Cooling Medium
This study explored the thermal properties of copper and its potential use as a passive cooling solution for computer hardware. I conducted experiments comparing copper sheets and plates to traditional aluminum heatsinks, observing temperature dissipation efficiency under different workloads. The research aimed to identify alternative low-cost cooling methods suitable for small computer labs and local PC assembly environments. It strengthened my understanding of thermal engineering, hardware design, and how physical materials affect electronic performance. The results contributed to early insights on improving stability and longevity for budget computer systems.
– Analysis of Microsoft Excel for Banking Course Implementation
I researched how Microsoft Excel could be effectively utilized in banking education to support topics such as financial calculations, interest modeling, loan tables, and basic data analysis. The study evaluated Excel’s capabilities for teaching students real-world banking workflows using formulas, functions, and data structuring techniques. I also designed practice modules to simulate small-scale financial scenarios. This research reinforced the idea that computer literacy plays a crucial role in modern financial education and demonstrated how spreadsheets can serve as powerful teaching tools for applied mathematics and accounting subjects.
– Research on Digital Accounting Data Recording at UMS
This project focused on converting traditional handwritten accounting logs into digital database entries using desktop applications. I analyzed common accounting workflows at Muhammadiyah Surakarta University and developed a prototype system to record transactions, categorize accounts, and generate simple financial statements. The research emphasized usability, accuracy, and efficient database design. It exposed me to early digital transformation challenges and strengthened my understanding of accounting principles. This project laid the groundwork for my later development of full‑scale POS, ERP, and financial systems for businesses and restaurant chains.
Brontok W32 Antivirus Research (Ongoing)
This long-term research investigates ways to detect and mitigate Brontok W32, one of Indonesia’s most notorious malware strains. The project involves analyzing file behavior, registry modifications, and propagation methods, followed by designing defensive algorithms within a VB6-based desktop application. The goal is to strengthen local cybersecurity awareness and explore practical antivirus patterns that can run on low-spec computers. This research significantly deepened my understanding of malware analysis, system protection, and behavioral scanning techniques. It also influenced my later work on security bots for servers and automation systems.
– Sparepart Warehouse Data System Research at TEPAT Surakarta
I conducted a study on improving sparepart stock accuracy through digital record-keeping. The research identified key issues in manual stock-taking, such as miscounts and data duplication. I then designed a digital prototype to track stock inflow/outflow, categorize items, and produce real-time reports. This research shaped my understanding of warehouse management and helped me build better inventory systems in later professional projects.
– Research on Consumable Inventory System at Hahonico Surakarta
This project evaluated workflow issues in stock usage and monitoring for consumable goods. I analyzed item movement, reorder thresholds, and reporting requirements, then built a system to automate data entry and history logs. The research improved my competence in designing inventory applications for small to medium enterprises using efficient database structures.
– Customs Data Recording System Research at PT SAKAI
I analyzed customs documentation processes including export forms, serial numbering, and compliance data. The research produced a digital prototype that helped automate data entry and reduced human error. It was my early exposure to structured, regulation-driven workflows in industrial contexts.
– Order Inventory Application Research at PT TRC Cikarang
I developed a research prototype for managing purchase orders, material flow, and item tracking. The goal was to improve reliability and reduce manual paperwork. This strengthened my understanding of supply chain digitization.
– Debt Transaction Recording Research at BOZZ Coffee Surakarta
I studied the store’s receivable workflows and created a digital model to track transactions, automate due‑date reminders, and simplify financial reporting. This research evolved into practical accounting tools that I later used in multiple retail projects.
– SMS System Research at CMM Yogyakarta
This project explored bulk messaging automation for a modeling school. I analyzed communication patterns, designing a system capable of sending mass SMS notifications, reminders, and announcements. It taught me about telecom integration and user communication behavior.
– Research on AI-based Speech Recognition + TTS System “Chiko”
This research focused on building an offline AI assistant using early speech recognition and text-to-speech engines. The project involved algorithm design, phonetic tuning, and scripted dialogue responses. It strengthened my foundation in voice-based AI, which later evolved into my modern chatbot and offline avatar systems.
– Customer Management System Research (SMS & Call) at Pringsewu
I analyzed communication workflows for multi-branch customer support, creating a digital solution to handle incoming messages, call logs, and customer inquiries. This research laid the foundation for my later CRM and AI-based communication tools.
– Web-based Customer Database System Research
I focused on building and improving a scalable web CRM system using PHP and MySQL. The research examined user experience, data structure optimization, and multi-branch access control. It greatly influenced my ERP development style.
– ERP / POS / HRIS / MRP Research & Development
This ongoing project explores enterprise-level systems for restaurant groups, covering POS, HR, finance, stock, purchasing, and manufacturing planning components. It forms the backbone of the modern systems I maintain at PT Pringsewu Cemerlang.