About Me
I help businesses connect payments, device data, and hotel operations in systems that teams can use and maintain.
I’m Rayhan, an Indonesia-based IT consultant and software architect. I help teams track transactions, monitor devices, and manage daily work in one system. Access permissions and activity records help you trace problems when they occur.
I’ve led engineering teams on cross-border money transfer and payment products. I’ve also built device monitoring and hotel management systems. That experience shapes my approach: understand operations before choosing technology.
Principles & Ways of Working
Reliability First
Activity records, backups, and recovery steps are planned early so teams can respond to disruptions.
Clear Scope
I explain requirements, boundaries, and dependencies early. We discuss needs outside my expertise together.
Open Communication
You receive progress updates and explanations of choices and their consequences. We discuss important decisions together.
Ready for Your Team
Documentation, monitoring, and support needs after launch are discussed as part of the project plan.
Experience Timeline
Device Monitoring & Operations Foundations
Built water meter data collection, warehouse management, and maintenance planning systems. The focus was supporting operational work with usable data.
Head of IT — Money Transfers & Payments
Led a nine-person engineering team on cross-border money transfer and payment products. Work covered transaction tracking, compliance review support, and operational dashboards.
Device & Operations Projects
Built device monitoring, visitor management integrations, smart locks, and vending machine systems. I also developed the Photobox kiosk app: QRIS payments, camera capture, printing, and downloads via QR code.
Hotel & Vending Machine Systems
Helped build a hotel system with staff access permissions and WhatsApp automation. Other projects covered vending machine data collection and monitoring.
Skills & Tech Stack
Technologies I work with daily