Tunas Akara

Systems That Simplify Your Business Operations

I’m Rayhan, an IT consultant and software architect. I help you connect payments, device data, and hotel operations so your team can work with clearer information.

3×

Monthly hotel income reported by the owner

Hotel dashboard, interview, and owner records

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500+

Devices in systems I have worked on

Based on project device records

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10+

Industry sectors across my IT work

Project experience across different sectors

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Case studies in payments, hotels, device monitoring, and business operations. Explore the problem, my role, and each project’s results.

2026iot

Pantau — CCTV Management and Operator Access

In operational use: operators view cameras within assigned areas, navigate footage, and use individual accounts with activity records.

Gogo2rtcRTSPWebRTCPostgreSQLREST API
2026hospitality

Hotel Management System — Pekalongan

Bookings, rooms, guests, payroll, attendance, and reports are connected. The owner reports 3× monthly income based on hotel records.

Next.js 16PostgreSQLDrizzle ORMWhatsApp APITailwind CSSREST API
2026iot

Smart Locks for Boarding Houses & Hotels

Boarding houses use Bluetooth access without extra gateways. Hotel door access follows reservations and guest checkout.

FlutterNode.jsPostgreSQLMQTTBLEREST API
2026iot

Pantau Analytics — CCTV Analysis Prototype

Prototype/design: visitor counts, parking conditions, and event indications for staff review. Results are not operational evidence.

PythonRTSPONNX RuntimeByteTrackPostgreSQLREST API
2025iot

IoT Device Monitoring System

Data and alerts from more than eight device categories appear together, with reading history and connection status for operators.

Node.jsMQTTModbusBLEPostgreSQLRedisWebSocketREST API
2022fintech

Cross-border Money Transfer Platform

The money transfer platform runs in production with an operating license, transaction history, and dashboards for operational review.

Node.jsPostgreSQLRedisDockerREST API
2022fintech

Connecting Multiple Payment Services

Multiple payment services follow one operational workflow, with transaction status and records connected to the money transfer platform.

Node.jsPostgreSQLRedisDockerREST API

Testimonials

Client notes and project outcomes

“Before this system, revenue, room status, and staff workflows were still spread across manual notes. After the HMS went live, daily operations became more organized, rooms were easier to track, and staff work became more structured.”

H

Hotel Owner

Owner, Hotel in Pekalongan

Project summary

Commissioned kiosk system for a physical photo booth: QRIS payment, template selection, camera capture, GIF output, printing, and QR-based customer downloads.

P

Photobox Kiosk Project

Project summary, Photobox, Gorontalo

Is your team held back by disconnected systems?