TimescaleDB – The modern Postgres for time-series

The open-source relational database for time-series with proven reliability and scale. Try TimescaleDB for free–no credit card required.

System Design Course

System design is the process of defining the architecture, interfaces, and data for a system that satisfies specific requirements. System design meets the needs of your business or organization through coherent and efficient systems. It requires a systematic approach to building and engineering systems. A good system design requires us to think about everything, from infrastructure all the way down to the data and how it's stored.

A brief history of the numeric keypad

Picture the keypad of a telephone and calculator side by side. Can you see the subtle difference between the two without resorting to your smartphone? Don’t worry if you can’t recall the design. Most of us are so used to accepting the common interfaces that we tend to overlook the calculator’s inverted key sequence. A calculator has the 7–8–9 buttons at the top whereas a phone uses the 1–2–3 format.

Programming breakthroughs we need

I feel like we need a few breakthroughs to drastically change how we develop software. And when I say breakthrough, I mean huge breakthrough. Something like a "structured programming" breakthrough, which completely changed how we think about programming. Here are some observations and ideas about that.

Basic Debugging And Problem Solving Questions

While a short post, I hope this will help others as it did me. These questions came out of an experience trying to troubleshoot a deployment issue I was called into some time ago. The problem got solved, but the approach to identifying the problem wasn't . . . ideal.

Use One Big Server

A lot of ink is spent on the “monoliths vs. microservices” debate, but the real issue behind this debate is about whether distributed system architecture is worth the developer time and cost overheads. By thinking about the real operational considerations of our systems, we can get some insight into whether we actually need distributed systems for most things.

Free eBook: Build a Digital Wallet and Two Other Fintech Products in <1 Day

Building fintech products is hard. But with a few shortcuts, you can build a functional app in less than a day. Modern Treasury provides simple RESTful APIs to integrate multiple payment methods, track and reconcile payments, and record balances in real time. This eBook walks through how to build 3 products step by step—a digital wallet, an escrow product, and an invoice factoring service. Get the free eBook now to learn how to build better fintech products, faster.