Hospitality // Client Project

Hotel Integrations:
85% Faster API Performance.

We built a practical Hospitality solution combining facade automation, live event sync, and flexible service discovery. The project delivered 99.99% System Availability and 45ms API Response.

Key Results RESULTS
99.99%
System Availability
ZERO DOWNTIME
45ms
API Response
800ms Older
12w
Time to Platform
Accelerated Build

Trusted by teams building ambitious products

What We Set Out to Improve.

Industry
Hospitality

Portfolio of 200+ properties restricted by a 15-year-old on-premise Property Management System.

How We Worked
Dedicated product team

Cloud Solutions Architect + 3 Backend Engineers + DevOps Lead embedded within Digital Transformation unit.

Goal
Digital Acceleration & Service Reliability

Surrounding the older core with a modern API facade to help mobile check-in and IoT room controls.

What We Built
Flexible API Network

A practical solution designed around the client’s existing tools, teams, and day-to-day workflow.

What Was Getting in the Way.

The client's expansion was throttled by a older PMS that lacked a modern API. Integrating simple guest features like digital room keys or live yield pricing required 6-month dev cycles and high-risk database surgery.

The biggest issues were system fragility, revenue leakage, and innovation stagnation. The team needed a faster, clearer way to manage the work while keeping the right checks in place.

System Fragility
Concurrent requests from mobile and web apps frequently overwhelmed the older database, causing property-wide outages.
Revenue Leakage
Slow API response times caused booking abandonment on direct channels and desynchronized inventory with OTAs.
Innovation Stagnation
Technical debt prevented the rollout of highly personalized guest services, eroding the brand's luxury positioning.
The Solution

What We Built.

01
Facade Automation
Added a Strangler Fig facade to intercept all digital requests, routing read-heavy queries to a high-speed cache while protecting the older write-path.
Key details
Pattern Strangler Fig
Caching Distributed Redis
Security OAuth2 Auth
02
Live Event Sync
Designed an automatic synchronization bridge that streams older database changes into the cloud platform in sub-200ms windows.
Key details
Engine Live Updates
Response time Sub Second
Reliability ZERO DOWNTIME
03
Flexible Service Discovery
Introduced Cloud-based smaller independent services to handle guest identity and room state, separated from the core PMS inventory logic.
Key details
Compute Ready to Grow
Scaling Auto Flexible
Framework GraphQL Connected system
Before and After

How the Workflow Improved.

Area
Before
After
API Performance

Synchronous / Fragile

Requests queued sequentially. one slow query could halt the entire booking flow.

Asynchronous / Fast

Non-blocking event streams and cached reads deliver p95 responses in 45ms.

Scale Integrity

Vertical / Rigid

Scaling required expensive hardware upgrades and scheduled downtime.

Horizontal / Flexible

Services scale instantly during flash-sale traffic without impacting the older core.

Integrations

Manual / 6-Months

New digital partners required bespoke, hard-coded connectors and XML mapping.

Plug-and-Play

Standardized REST/GraphQL APIs allow new service integrations in days.

Key Features

What Made the Solution Useful.

Fast Response

Global Edge Caching

Inventory and rate data cached at the network edge, reducing round-trip times for global booking engines by 85%.

Business impact
45ms Responses
Secure by Design

PCI-DSS Gated Facade

A dedicated security layer scrubs personal information and handles tokenization before requests ever reach the unencrypted older core.

Business impact
Zero Audit Difficulty
ZERO DOWNTIME

Intelligent Circuit Breakers

Automated failovers prevent older PMS response time from cascading into the guest-facing mobile applications.

Business impact
99.99% Uptime
Faster Delivery

How We Reduced Build Time.

Tested foundations helped the team spend less time on setup and more time on the parts that made this product useful.

What accelerated the work

4 reusable building blocks
01

PMS Connector Module

A tested starting point for pms connector module reduced repeated setup work.

02

Flexible API Gateway Module

Reusable work for flexible api gateway module let the team focus more time on the client’s specific needs.

03

Edge Monitoring Platform

This made it easier to add edge monitoring platform without rebuilding common foundations.

04

FinOps Safety controls

A tested starting point for finops safety controls reduced repeated setup work.

Results

The Business Difference.

A straightforward before-and-after view of what changed for the team and their customers.

RESULT: PERFORMANCE01

API Response Speed

Splitting cached reads from the older PMS eliminated the 800ms slowdown in the guest journey.

Older PMS800ms
Coretus Platform45ms
Outcome85% Response Time Reduction
RESULT: RELIABILITY02

Peak Season Uptime

Circuit breakers and flexible scaling ensured zero outages during holiday traffic surges.

Before96.4%
After99.99%
Outcome99.99% Availability
RESULT: OPS EFFICIENCY03

Integration Speed

Moving to a standardized smooth data integration layer allowed the digital team to deploy new partners 5x faster.

Older6 Months
Modern4 Weeks
Outcome5x Faster Release
Results85% Response Time Reduction • 99.99% Availability
Trust and Control

How We Kept It Safe and Reliable.

01
PCI-DSS Compliance
Payment data tokenization occurs at the edge, ensuring no unencrypted card data hits the older core.
Business SECURE
02
Reliable Migration
The Strangler Fig pattern allowed a phased migration with zero impact on property-level operations.
ZERO DOWNTIME
03
System Growth
Cloud-based automation ensures the API layer remains resilient regardless of transaction volume.
Ready to Grow
04
Code and IP Ownership
Coretus provides 100% IP ownership of all connectors, facades, and deployment systems upon completion.
100% OWNED
Client Testimonial

In their own words.

Coretus didn't just add an API, they surgically de-coupled our digital future from our older past. We went from property-level outages to 99.99% availability while launching our mobile key initiative 4 months early.

Turn Technical Debt into a Valuable Asset.

Have a similar challenge? We can help you plan and build a practical Hospitality solution around your goals, budget, and existing systems.

Reliable Strangler Build

Sub-50ms API Performance

100% IP & Model Ownership