Designing Safe Database Schema Changes
Of all the operational risks I worry about as a CTO in regulated payments, the one that keeps recurring in postmortems is not a fancy distributed-systems...
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Tagged #c#
11 articles tagged #c#.
Handling Timezones and Dates Correctly
Of all the categories of bugs I have seen ship to production over a twenty-year career, the ones rooted in date and time handling are the most insidious. They...
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Background Jobs in .NET: A Practical Guide
Every payments platform I have worked on eventually grows a second nervous system. Alongside the request-response code that answers an API call in...
11 min361Read →
Building Multi-Currency Support
Every payments platform reaches a moment where a single currency stops being enough. For us it arrived the day a logistics customer in France asked whether...
10 min795Read →
Structured Logging in .NET
Every incident review I have ever sat through eventually arrives at the same uncomfortable question: what was the system actually doing at the moment it...
11 min792Read →
Managing Secrets in .NET Applications
Every breach post-mortem I have read in the last decade has a secrets problem buried somewhere in it. A connection string in a config file checked into source...
11 min529Read →
Handling Money in Code: Never Use Floats
Every engineer who has spent time near a payments ledger eventually learns the same lesson, usually at the worst possible moment: a reconciliation report is...
10 min870Read →
Database Migrations Without Downtime in .NET
Every team I have led eventually hits the same wall: the schema needs to change, the business cannot tolerate a maintenance window, and the database underneath...
10 min468Read →
The Pragmatic Guide to Adopting .NET 9 in Production
A new major .NET release arrives, and the team chat immediately splits into two camps: the people who want to upgrade this week because it is new, and the...
4 min487Read →
Securing Fintech APIs: A .NET Developer's Checklist
Security in a fintech API is not a feature you bolt on at the end, just before launch, when someone in compliance asks the uncomfortable question. It is a set...
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Building Idempotent Payment APIs in C# and .NET
If you build payment systems long enough, you eventually learn the same lesson the hard way: the network will retry your request, and your API had better be...
6 min464Read →