Payments Plumbing & Product Labs
Callendina handles the high-stakes architectural "plumbing" for Australia's most critical payment systems. We also build tools in our Lab to solve real-world problems in logistics and performance analytics.
Practical Consulting
For over 20 years, we’ve been the "safe pair of hands" for Australian banks and retailers. We specialize in the complex, behind-the-scenes work that keeps the money moving:
- Modern Rails: Designing the fee engines and architectures for PayTo, NPP, and ISO 20022.
- Scale & Stability: Building and migrating switches that handle 2 billion transactions a year without a blip.
- Cryptographic Modernization: Leading industry-wide migrations from Triple DES to AES encryption, modern key management, and the implementation of quantum-safe cryptography.
Callendina Labs
We don't just advise; we build. The Lab is where we refine our technical skills and build tools for things we actually care about.