Delivering Portugal's largest rewards ecosystem for Santander

A rewards platform that brings together a marketplace and an innovative loyalty program.

+2M: real time users
+100k: Marketplace partner products
+2M: daily transactions

Expertise

Product Discovery
Business Analysis
Backend Development
Frontend Development
Data Modeling
Accounting Domain Design
System Integration
Quality Assurance

Platforms

What we delivered

Real-time Loyalty System
Marketplace

The challenge

Following the success of several initiatives with Santander, Premium Minds was trusted to take on a more ambitious initiative.

Santander set out to build a rewards and loyalty platform capable of supporting millions of customers, a growing network of partners, and an expanding catalogue of products. The platform needed to operate in real time, with no friction for the end user.

From the start, the solution was shaped around Santander's current needs, with a scalable framework ready to support growth without rework.

Premium Minders looking happy and focused working on the project

A showcase of multiple screens of the application

The solution

The platform was built on four pillars: marketplace, loyalty, integration and accounting. The marketplace manages partners, products, and offers, while the loyalty engine defines rules for earning and redeeming rewards based on customer activity. These are supported by an integration layer that connects internal systems through event-driven communication and data contracts. Lastly, the accounting component tracks transactions, supports reconciliation, and ensures auditability across cost centers and partners.

Architecture and
Technology

Java (Spring Boot)
Oracle Database
Mongo DB
Redis
Angular
Confluent Kafka
GoCD
OpenShift

A young woman smiling while using the web app.

The results

Delivered ahead of the initial estimate, the platform handles more than 2 million transactions per day. Built for real-time response, it adapts to customer behavior and scales with demand with accounting and reconciliation built in from the start.

New partners, offers, and campaigns can be introduced without disruption, giving teams the autonomy to move faster while maintaining a consistent experience.