Engineering a high-availability IoT mesh to orchestrate Bluetooth Low Energy (BLE) room access and autonomous mobile check-in across a 26-property portfolio.
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Global resort group requiring a unified mobile identity layer across disparate Property Management Systems (PMS).
IoT Architect + 2 Mobile Engineers + SRE Lead embedded within the Digital Transformation office.
Bypassing front-desk bottlenecks by moving room access and identity verification to the guest's device.
K8s-orchestrated edge gateways, Bluetooth Low Energy handshakes, and real-time PMS event streams.
The group’s legacy arrival process relied on manual passport scanning and physical keycard encoding, creating 45-minute bottlenecks during peak resort rotations. This 'Execution Gap' directly lowered guest satisfaction scores and increased front-of-house labor costs.
The technical challenge was structural: physical locks across 26 properties used varying hardware protocols. The enterprise required a hardware-agnostic 'Mobile Auth Mesh' that could securely deliver encrypted room keys to a guest's smartphone in sub-2 seconds.
Easily demagnetized, prone to loss, and requiring manual desk intervention.
Software-defined access delivered instantly to the guest’s own secure device.
Front-desk agents manually checking IDs against printed reservation logs.
Automated biometrics and OCR-based passport verification integrated into the mobile flow.
Staff only notified of guest arrivals after the desk check-in was completed.
Geo-fencing alerts notify housekeeping and concierge of guest arrival on property.
Optimized the BLE polling window to ensure guests can unlock their doors within 1.8 seconds of approaching.
End-to-end encryption ensures that guest location and access data are fully anonymized in the cloud.
A unified API layer that talks to both Oracle Opera and local boutique PMS systems without modification.
Pre-built BLE pairing and token-rotation logic for high-security enterprise lock hardware.
Production-ready streaming adapters for major hospitality platforms (Opera, Infor, Mews).
Real-time monitoring for lock battery levels and gateway connectivity across resort grounds.
Dynamic scaling of backend auth services based on real-time flight arrival schedules.
Mobile check-in allowed guests to bypass the lobby entirely, reducing wait times to zero for 40% of arrivals.
User-friendly BLE UX resulted in a high guest adoption rate, allowing staff to re-focus on premium concierge services.
Optimized backend orchestration ensured that keys are generated and delivered before the guest reaches the lift.
Client Testimonial
Coretus didn't just build an app—they architected a global IoT mesh that reconciled our physical security with digital guest expectations. We removed the desk bottleneck overnight across 26 luxury properties.
VP of Digital Operations