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Banking technology

Curated insights and technical field notes on Banking technology.

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Start with the newest decision note, then follow the topic lanes when you need payments, AI systems, or product architecture depth.

Decision notes

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Systems maps

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Source posture

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Strategy

The core was never the bottleneck. The operating model was

The plan said twelve months and the core replacement landed in year three. Nobody in that room was lying. They budgeted for a software install and got an operating-model change. After two decades on the payments, treasury, and integration side of these programs, here is the math I give clients before they sign a full legacy core replacement, and where the months actually go.

Lead essay

Start here when you want the current Doric argument instead of a chronological archive.

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01 / Payments

Commerce architecture

Merchant-of-record decisions, checkout ownership, billing operations, settlement, reconciliation, and risk boundaries.

02 / AI tooling

Practical AI systems

Agentic commerce, multi-agent orchestration, model fine-tuning, runtime governance, and production deployment.

03 / Build notes

From idea to system

The design, architecture, and operating decisions behind Doric Stack products as they move from prototype to public release.