Toptal Engineering Blog

The release of Vue 3 brought about substantial performance improvements, but they should not overshadow the introduction of new features and paradigms.

In this article, Toptal Full-stack Developer Luka Mikec introduces you to the new Composition API and explains what Vue 3 means for code expressiveness, organization, and reuse.

Learn practical TypeScript patterns with interfaces and extended classes. Avoid messy console.log() statements with Winston and the Node.js debug module. Create an Express.js-powered REST API back end from scratch!

One tool that managers can consider adding to their management skill set is a practice called Radical Candor. Radical Candor is the ability to care emotionally about the engineer as an individual and valued contributor, while also expressing honesty concerning their efforts and results achieved by those efforts.

Created by Google as an in-house testing tool, EarlGrey was open-sourced in 2016, and it quickly gained a sizable following in the iOS developer community.

In this article, Toptal Senior QA Automation Engineer Ciprian Balea explains why the Toptal talent app is tested using EarlGrey and demonstrates why you should consider it, too.

Spring Security is the de facto framework for securing Spring apps, but it can be tricky to configure.

This Spring Security tutorial highlights an efficient JWT solution.

Pandoc is a software package capable of converting documents into various formats, and since it’s available as a Docker image, it’s easy to run.

In this article, Toptal Site Reliability Engineer (SRE) Phillip Edwards demonstrates how you can easily create a robust publication chain using Pandoc, Docker, and a pinch of Markdown.

Adopting declarative-style programming techniques allows teams to create web applications that are easier to extend and maintain.

In this article, Toptal Full-stack Developer Peter Suggate demonstrates how to leverage declarative programming and finite-state machines in JavaScript.

Mastering your IDE can go a long way toward improving productivity. However, many are reluctant to dive into customization and optimization.

In this article, Toptal JavaScript Developer Boris Yordanov explains how you can become a VSCode power user by leveraging official documentation and using a few practical tools.

As patterns go, REST APIs are so useful and ubiquitous that every web developer, regardless of language or platform, should know how to build them.

In this article, Toptal JavaScript Developer Marcos Henrique da Silva shows how to create a simple and secure REST API for user management on Node.js.

Good programming language frameworks make it easy to produce quality products faster. Great frameworks even make the whole development experience enjoyable. FastAPI is a new Python web framework that’s powerful and enjoyable to use.

Data quality is a crucial element of any successful data warehouse solution. As the complexity of data warehouses increases, so does the need for data quality processes.

In this article, Toptal Data Quality Developer Alexander Hauskrecht outlines how you can ensure a high degree of data quality and why this process is so important.

JavaScript frameworks based on React can help you build a fast, reliable mobile app, but it’s not always easy to determine which framework is best for your project. Choosing the wrong framework can result in an app with slow and redundant code.

JavaScript expert Sean Wang builds the same natural language processing mobile application using Cordova, Ionic, and React Native, then discusses the advantages and limitations of each.

Sorting a table can make some queries faster—but the maintenance cost is untenable. Enter real database indexes and their most common implementation structure: the B-tree.

As products and services deploy faster and faster, quality assurance (QA) has to adapt and deliver more coverage in less time while maintaining high quality.

In this article, Toptal Software Engineer Jade Russel Hancox examines how we can use the user flow to boost the speed and efficiency of QA processes without compromising on quality.

Google’s Flutter framework has quickly caught on among developers who want to target Android and iOS from the same codebase—and businesses who know the value of a single project team yielding presence in both markets.

Employing a test-driven development (TDD) approach in React projects tends to be straightforward, especially with the aid of Jest and Enzyme. However, there are a few things to look out for.

In this article, a Toptal JavaScript expert demonstrates his React TDD process, from epics and user stories to development and production.