Open source
Coming soonA documented library will be published on the firm's GitHub — an integration client or webhook signature verifier.
GitHub →Projects
Key achievements
A selection of representative engagements. Details are anonymised where client confidentiality requires it.
mockup — payment orchestration
FinTech · Payments
Payment integration platform
A unified integration layer: idempotency, webhooks, retries and state management across providers with inconsistent APIs.
view project →mockup — greenfield platform
Marketplace · Collection
Greenfield payment platform
Orchestration, ledger and integration designed from scratch — observability and idempotency from day one.
view project →mockup — backend modernization
Enterprise · Backend
Production backend modernization
A progressive stack upgrade without a big bang: APIs, events and observability, while keeping production running.
view project →Insights
What is verifiable today
One internal product delivered. Publications to come. No invented client logos.
Technical publications
UpcomingTechnical notes to publish under our names, on the problems we address in engagements.
- 01
Payment webhook idempotency: why your customers get charged twice
- 02
Why a payment timeout must never automatically trigger a new payment
- 03
Multi-rail Wave / Orange Money reconciliation: a data model that holds
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