PT Sumber Alfaria Trijaya Tbk (Alfamart)
IT Store Support – Semarang Distribution Center
I am Hendra Setyawan, an IT professional who prefers actions over words. I enjoy learning, experimenting, and building useful digital solutions.
Web Development / AI / Machine Learning / Sistem Informasi
Saya percaya bahwa teknologi terbaik lahir dari rasa ingin tahu, ketekunan, dan keinginan membantu orang lain. Saya suka mempelajari hal baru, merancang sistem, lalu mengubah ide menjadi aplikasi yang dapat digunakan.
Ruang eksplorasi saya mencakup aplikasi web, sistem informasi, digitalisasi layanan, kecerdasan buatan, dan analisis data.
Professional experience in retail and healthcare.
IT Store Support – Semarang Distribution Center
Head of Hospital IT
Head of Hospital IT
Clients who have collaborated on business application development.






Explore Project · Aplikasi dan karya pengembangan.
How it works in simple terms: The user asks a question. The system searches for relevant information from documents, databases, or a knowledge base by uploading PDF files. The retrieved information is provided to the LLM as context. The LLM generates an answer based on the retrieved information. In short, RAG = LLM + document search engine + answer generation based on retrieved documents.
An RSA Digital Signature system designed for authentication and digital document security, featuring RSA encryption, electronic signature verification, document validation, and secure and efficient file management. Highly recommended for corporate digital administration needs.
This application is an early version of an image-based digital signature system designed to simplify electronic signature input. It does not yet use RSA-based Digital Signature cryptography and does not meet the standards required to be classified as a fully secure digital signature.
A web-based AI Chat Box application designed to provide automated conversations, information assistance, customer support, and modern, fast, and interactive artificial intelligence integration.
A web-based E-Archive application designed to simplify the management, storage, search, and distribution of documents digitally through a modern, secure, and integrated system.
An integrated Medical Check Up (MCU) application system for managing patient registration, medical examinations, laboratory results, radiology, doctor diagnoses, and digital MCU reports efficiently.
Applications can be demonstrated and discussed for business or organizational needs. Pricing and availability depend on requirements.