Insights

Perspectives on payments, security, and platform engineering

Practical knowledge from the teams who build and secure payment infrastructure — written for the people who have to run it, not to sell it.

Topics covered

  • Digital payments
  • Payment infrastructure
  • Security & compliance
  • Financial technology
  • Business transformation
  • Industry challenges
Articles

Ideas shaping modern payments

Long-form arguments on payments, security and platform engineering, from the people delivering them.

Blog

From the Entrant team

The shorter register: field notes, release notes, and standards changes as they land.

Nothing published yet

In preparation — the first posts are being written.

Read the articles
Use Cases

Payment challenges. Practical solutions.

Anonymised delivery records: what was failing, and what we built in response.

  • BankingCairo2025

    Migrating a national card switch without a maintenance window

    A twelve-year-old switch was clearing every card transaction in the network and could not be taken offline. Every scheme mandate cycle was landing late, and the change queue had grown past what the team could clear in a year.

    Full text in preparation
  • Merchant acquiringCairo2025

    Putting certified card acceptance on merchants' own phones

    Terminal cost was the single barrier keeping small merchants on cash. Hardware economics meant the processor could not profitably serve anyone below a monthly volume floor.

    Full text in preparation
  • FintechKigali2024

    Reaching ISO 27001 without freezing the delivery roadmap

    Enterprise deals were stalling in security review. The team had good practice but no evidence trail, and an auditor-led programme would have consumed the engineering roadmap for two quarters.

    Full text in preparation
  • BankingKigali2024

    Moving fraud review from next-morning batch to real time

    Fraud was reviewed the following morning from an overnight batch. By the time an analyst opened a case the funds had usually moved, and the rule set could not be changed without a release.

    Full text in preparation
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