Toptal Blog

How do you define good code? Is it 100% test coverage, or is it backwards compatibility with decade-old hardware? We may not be able to reach an end to this debate yet, but good software always seems to conform to a few certain qualities of code.

In this article, Toptal Freelance Software Engineer Zachary Goldberg walks us through six simple ideas that can help you make better, more maintainable software.

The difference between getting the job or not often comes down to how design work is presented. Even great designers can miss opportunities because their portfolio isn’t up to snuff.

Implementing applications that deal with complex concurrent behavior has always been a challenging aspect of programming. Various paradigms exist that promise a solution to this problem in different ways. RxJava is a Java library that enables Functional Reactive Programming in Android development. It raises the level of abstraction around threading in order to simplify the implementation of complex concurrent behavior.

In this article, Toptal Freelance Software Engineer Christopher Arriola gives us a detailed walkthrough of RxJava and how it fits into the realm of Android development.

Linux is now 25 years old, but it’s no hipster. It’s not chasing around Pokemon, and it’s not moving back in with its parents due to crippling student debt. In fact, Linux is still growing and evolving, but the core ideas of the Linux State of Mind remain the same.

In this article, Toptal Technical Editor Nermin Hajdarbegovic takes a look at the history of Linux development, the state of Linux today, and what’s next for the world’s most popular open-source operating system.

Kotlin is a new, expressive, general-purpose programming language powered by the same virtual machine technology that powers Java. Since Kotlin compiles to the JVM bytecode, it can be used side by side with Java, and it does not come with a performance overhead.

In this article, Toptal Freelance Software Engineer Ivan Kušt gives us a walkthrough of 10 major features of Kotlin that help avoid boilerplate code and, more importantly, save time.

More than two decades ago, Java shook the world with its “Write once, run anywhere“ slogan. Today, Java developers have at their disposal a whole set of tools, such as Spring Boot, Docker, Cloud, Amazon Web Services, and Continuous Delivery, to take development and delivery to a whole new universe.

In this article, Toptal Freelance Software Engineer Matko Šuflaj presents all these technologies and guides us through a step-by-step tutorial on how to build a small microservice and prepare it for continuous integration in the cloud.

As a result of smartphones and mobile applications becoming so popular, web developers have been looking for ways to create mobile applications using JavaScript. This increased demand has led to the development of many JavaScript frameworks capable of running native-like applications on mobile devices.

In this article, Toptal Freelance Software Engineer Johannes Stein compares the current two most popular choices for mobile-oriented JavaScript frameworks, Cordova and React Native. Examining their advantages and pitfalls, he dives into details of each and compares them across different disciplines.

What’s the biggest problem with crowdfunding today? Everyone wants a sweet slice of the crowdfunded pie, but nobody wants a single crumb of responsibility. As a result, crowdfunding platforms, the tech press, and the geek public have picked up a track record filled with spectacular crowdfunding failures.

In this article, Toptal Technical Editor Nermin Hajdarbegovic takes a look at the state of crowdfunding today and explains why the industry needs to do more to clean up its act and get rid of bad apples in crowdfunding.

Java may have stood the test of time, but it can still be a source of great frustration among many web developers. Dealing with its verbosity and infrastructure overhead, for example, can take hours, even for the most basic needs.

In this article, Toptal Freelance Software Engineer Gregor Ambrozic shows us how Grails and its many appealing features can be a viable alternative to traditional Java web applications frameworks.