11:FS Foundry

Lego-brick Banking

Designing a Modular Core Banking Platform

Role

Product Design Lead

Outcome

Modular architecture became the firm's primary competitive advantage, directly leading to multiple successful deal wins.

As Product Design Lead, I spearheaded the zero-to-one design of a cloud-native core banking system.

Reporting to the CEO, I was tasked with solving the primary pain point of legacy banking: the months of engineering effort required to launch even simple product changes.

Through deep discovery sessions with partners like Norway's DNB, I identified a market need for a system that prioritized flexibility over hard-coded complexity.

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Solution: The TACOS Framework

I designed a modular, Lego-brick financial system based on a proprietary framework called TACOS (Triggers, Actions, Conditions, Operators, and Statuses).

This logic-first approach allowed banks to deconstruct traditional products like credit cards into generic, flexible components.

I delivered a B2B UI that enabled bank administrators to configure complex financial logic and launch new products in minutes instead of months — all through a self-serve interface that required zero code.

Mapping the TACOS architecture
Mapping the TACOS architecture
Mapping the TACOS architecture
Mapping the TACOS architecture
Mapping the TACOS architecture
Mapping the TACOS architecture

Results

This modular architecture became the firm's primary competitive advantage, directly leading to multiple successful deal wins. In addition to the core platform, I delivered two distinct Design Systems for bank-facing and consumer-facing mobile platforms.

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