Toptal Engineering Blog

The quietly growing number of serious Haxe projects have something new to contend with: the first major compiler release in over three years. What does Haxe 4 bring to the table?

Virtual Reality (VR) is making inroads into various industries but is not mainstream yet. WebVR and edge computing have the potential to boost adoption and bring VR to a wider audience.

In this series of articles, Toptal Full-stack Developer Michael Cole introduces you to the basics of WebVR and edge computing, complete with elaborate examples.

Does your web page’s rendering performance meet today’s standards? Bad rendering performance can translate into a relatively high bounce rate.

In this article, Toptal Freelance Web Developer Ilya Chernov explores the things that can lead to high rendering times, and how to fix them.

If a web application is big and old enough, there may come a time when you need to break it down into smaller, isolated parts and extract services from it. Some of these will be more independent than others.

In this post, Toptal Full-stack Developer Viktar Basharymau explains how his team extracted an app from the monolithic Rails application that powers Toptal, and how the new service’s technical stack was selected.

When starting a new React project, you have many templates to choose from. These templates are able to support application development at a very large scale. But they leave the developer experience and bundle output saddled with various defaults, which may not be ideal.

As a platform for running complex and demanding software products, AWS offers flexibility by using resources only when needed and scaling on demand.

In this article, Toptal JavaScript Developer Tomislav Capan explains why he uses AWS and what provisioned infrastructure can do for clients.

Migrating in either direction between Microsoft SQL Server and Oracle Database? This round of pitfalls to avoid includes coverage of sequences, identity columns, and filtered indexes.

While Redux is a great state management solution, it doesn’t support asynchronous behavior by default. A way around this is to use redux-observable, based on RxJS - a powerful library for reactive programming in JavaScript.

HTTP/3 is on the horizon, but many aren’t even familiar with HTTP/2 yet. Find out what HTTP/3 means for web development, administration, and the internet.

Web applications are becoming more popular day by day with stable options like React.js, Angular, and Vue.js. However, a serious competitor may be on the horizon: Svelte.

In this article, Toptal freelance software developer Teimur Gasanov introduces Svelte, a new framework for building user interfaces. He does so by walking us through creating a common log-in form used by virtually every type of application.

Micro-frontend architectures decompose a front-end app into individual, semi-independent “microapps” working loosely together. This can help make large projects more manageable, e.g. when transitioning from legacy codebases.

Secure payment processing is a key prerequisite for any eCommerce operation. If it fails, the consequences can be catastrophic for any company, big or small.

In this article, Toptal Ruby on Rails Developer Henrique Reinaldo Sarmento outlines how you can create a Ruby on Rails eCommerce app, leveraging PayPal and Stripe for reliable and secure payments.

Unwanted AI bias is already a widespread problem. Machine learning models can replicate or exacerbate existing biases, often in ways that are not detected until release. So what can be done about it?

Functional Programming is a paradigm of building computer programs using expressions and functions without mutating state and data.

In this article, we will talk about doing functional programming using JavaScript. We will also explore various JavaScript methods and features that make it possible. In the end, we will explore different concepts associated with functional programming and see why they are so powerful.

WordPress developers spent years struggling with sub-optimal solutions for CI/CD. Despite the fact that they were using the most popular CMS on the market, they often had to improvise and resort to time-consuming practices.

In this article, Toptal WordPress Developer Alexa Green shares her approach to WordPress deployment using Bitbucket and some straightforward code.

The successor of the revolutionary ESP8266, the ESP32 is a next-generation microcontroller. Find out how to sample its analog-to-digital converter (ADC) from a timer interrupt using the Arduino IDE.