Toptal Engineering Blog

Building a mobile app isn’t cheap—and the harsh reality is that most apps fail. Find out how to leverage fundamental analytics metrics to make sure your app actually turns a profit.

Flask is a great way to get up and running quickly with a Python applications, but what if you wanted to make something a bit more robust?

In this article, Toptal Freelance Python Developer Ivan PoleschyuI shares some tips and useful recipes for building a complete production-ready Flask application.

There are a number of ways of implementing animated full-screen layouts with a large degree of human interaction, and many developers would resort to a JavaScript plugin to save time.

In this article, Toptal JavaScript Developer Stefan Vitasovic demonstrates how you can do it using nothing but CSS and JavaScript, without including a bloated library or plugin in your project.

Types and testable code are two of the most effective ways of avoiding bugs. In this tutorial, discover TypeScript best practices while you create a Discord bot from scratch.

Swift is great, but what if your application relies on a library that’s written using C++? Luckily Objective-C++ is here to save the day.

In this article, Toptal Freelance Swift Developer Josip Bernat integrates C++ code with Swift by using wrapper classes as a bridge and then creates an app that recognizes the Toptal logo using OpenCV.

GraphQL is a query language for APIs and can be used to query data from a server while also allowing clients to specify exactly what data is needed.

Toptal Freelance Developer Christopher Moore explains how to create a GraphQL server using the Laravel Framework along with walking through some examples including querying relationships, mutations, and authentication.

DevOps is an oft-misunderstood buzzword, seen as a trendy must-have in the form of technologies, tools, and staff to acquire. But it’s much more, yet much simpler, than that.