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.
- Security: Leading industry-wide moves to AES encryption and modern key management.
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.
Vispay
A simulator that makes the invisible parts of payments visible. We built it to teach people how HSM cryptography and scheme financial flows actually work. Guided by Triode, our 1950s-style guide to the digital depths.
Ticktack
Sailing performance and crew management. Phil races a 38-foot yacht, and managing 100+ volunteers is a headache. Ticktack replaces messy spreadsheets with WhatsApp automation and syncs GPS data with race video.
Scout
Basketball analytics for coaches. Scout turns game data into actionable feedback, helping coaches see exactly what’s happening on the court without the manual overhead.