Toptal Blog

Customer journey maps are a visual storytelling tool used to help designers empathize with users and identify actionable opportunities for providing a better user experience.

TensorFlow is more than just a machine intelligence framework. It is packed with features and tools that make developing and debugging machine learning systems easier than ever.

In this article, Toptal Freelance Software Engineer Dino Causevic gives us an overview of TensorFlow and some auxiliary libraries to debug, visualize, and tweak the models created with it.

Landing pages are powerful tools used to convert visitors into leads and buyers. This post outlines the psychological aspects and design considerations that make up a successful landing page.

In the past five years, Blue Apron has brought meal kits to the masses and commands a 40% market share in the USA. Yet all is not rosy; its financial losses have continually accelerated and it has ceded 17% of its market share in the past year.

Amazon buying Whole Foods on the eve of its 2017 IPO could have just been bad luck, or prescient signs of what’s to come for Blue Apron. This article looks at ways that the business can get its house in order and win back the Millennial kitchen.

AppExchange offers some solid wins for any company using Salesforce.

In this article, Freelance Salesforce Developer Fahad Munawar Khan explains how easy it is to get up and running with Salesforce AppExchange, and reveals some apps that are must-haves for any enterprise looking to boost their productivity.

TensorFlow makes implementing deep learning on a production scale a breeze. However, understanding its core mechanisms and how dataflow graphs work is an essential step in leveraging the tool’s power.

In this article, Toptal Freelance Software Engineer Oliver Holloway demonstrates how TensorFlow works by first solving a general numerical problem and then a deep learning problem.

Design frameworks help designers work more efficiently by utilizing reusable UI components. We shed light on how to create and use one using Sketch symbols (includes a free Sketch UI framework).

Retail investors have had a rough year. The SPDR S&P Retail ETF has underperformed the S&P 500 by nearly 30 percentage points. From eCommerce shifts to higher gas prices, there are plenty of arguments to be made against retail. Yet, there are a couple reasons to be jolly heading into the holiday season that few are talking about.

In this article, Elizabeth Hanano, CFA suggests that low expectations combined with lesser-known tailwinds indicate it may be time to dip a toe back into the retail pond.

Any piece of code that has no tests is said to be legacy code according to Michael Feathers. Therefore, one of the best ways to avoid creating legacy code is using test-driven development (TDD).

While there are many tools available to create unit tests in JavaScript, in this post, we will use Jest and Enzyme to create a React.js component with basic functionality using TDD.