Toptal Engineering Expert
How to Approach Modern WordPress Development (Part 1)
It’s no secret that the WordPress codebase is a mess. Many developers use its legacy code as an excuse for writing sloppy code themselves, even if its newer additions follow best practices. If this is you, it’s time to level up your skills!

Andrey Shalashov
Andrey is a full-stack web developer and WordPress expert. Lately, his focus is on serverless computing and JAMstack. With over a decade of experience, he brings deep React expertise and strong back-end skills in technologies such as Node.js and relational databases.
A Look at JavaScript’s Future
In the past few years, we’ve seen the introduction of a lot of new technologies in JavaScript, but we needed time to see how the market was going to adopt them.
In this article, Toptal Freelance JavaScript Developer Alejandro Hernandez takes a look at how popular JavaScript is becoming and the factors that may have affected this popularity, and he tries to predict what the future of JavaScript will look like.

Alejandro Hernandez
Alejandro is a full-stack architect working on JavaScript projects, where his experience and understanding of architecture is most impactful.
HorusLP-Gurobi: High-level Optimization Architecture for Gurobi
Commercial solvers such as Gurobi are playing an increasingly important role in optimization, and they tend to boast more features than open-source solutions.
In this article, Toptal Python Developer Sean Wang explains how you can integrate the HorusLP package with Gurobi’s API to harness its most advanced features.

Shanglun Wang
Sean is a passionate polyglot developer with extensive experience in full-stack web development, system administration, and data science. He has developed everything from machinery interfaces to market intelligence software.
.NET Unit Testing: Spend Upfront to Save Later On
Unit testing sometimes sounds like an unnecessary expense, but it is a powerful, yet simple tool. Unit tests allow you to identify and rectify weaknesses with relatively little effort. In this article, Toptal Software Engineer Nickolas Fisher takes you on a quick tour of unit testing and explains why you can’t have too many unit tests.

Nickolas Fisher
Nickolas specializes in large scale enterprise web apps, payment gateways, software architecture, and Windows services.
When Does it Make Sense to Use Google BigQuery?
What do you do when you come across a dataset that’s simply too big to allow fast queries? Google BigQuery could be part of the solution, though it’s no silver bullet.
In this article, Toptal Java Developer Maksym Goroshkevych explains how BigQuery can drastically improve query performance, and when you should and should not use it.

Maksym Goroshkevych
Maksym is an expert in back-end Java development and building up the front with Angular. He enjoys tackling complex, challenging projects.
World-class articles, delivered weekly.
By entering your email, you are agreeing to our privacy policy.
Adversarial Machine Learning: How to Attack and Defend ML Models
The increasing accuracy of machine learning systems has resulted in a flood of applications using them. As machine learning models matured and improved, so did ways of attacking them.
In this article, Toptal Python Developer Pau Labarta Bajo examines the world of adversarial machine learning, explains how ML models can be attacked, and what you can do to safeguard them against attack.

Pau Labarta Bajo
Pau has extensive experience in quantitative finance. He combines love of statistics and machine learning with excellent Python skills.
Make Your App Profitable: Leverage Mobile Analytics
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.

Matthew Knippen
Since 2008, Matthew has built more than 60 iOS apps using Swift and Objective-C. He is best known for taking products from idea to App Store in under eight weeks. He holds a bachelor’s degree in computer science from the Illinois Institute of Technology. His core strengths include native iOS development as well as product development and management.
Build a Custom Full Page Slider with CSS and JavaScript
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.

Stefan Vitasovic
Stefan is a front-end engineer inspired by modern, interactive layouts. He has worked on hundreds of projects, focusing on high-end UI and UX.
Working With TypeScript, Dependency Injection, and Discord Bots
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.

Michał Krakiewicz
A PHP/Laravel veteran, Michał (BSc) learned Agile teamwork at cloud analytics giant Piwik PRO (now Matomo). Lately, his focus is on Vue.js.
Object Detection Using OpenCV and Swift
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.

Josip Bernat
Josip has been developing for iOS since iOS 4 beta but vastly prefers the current state of iOS development with Objective-C and Swift.
Building a GraphQL Server with Laravel
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.

Christopher Moore
Christopher Moore is a full-stack PHP developer with over seven years of experience. He specializes in Laravel and Ember development.
Bridging Gaps: The Importance of DevOps Communication
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.

Piotr Gaczkowski
With low-level (C/C++) and high-level (Python) experience gained at Intel and ADVA, Piotr follows the DevOps path to build great products.
The Front End: Using Gatsby.js and Node.js for Static Site Updates
With a static site generator back end in place from Part 1, now it’s time to implement a Gatsby.js-based front end, host it on Netlify, and get AWS to activate the whole pipeline.

Furkan Yavuz
Furkan is an experienced full-stack developer who has worked remotely since 2016. His main expertise includes Java, Angular, and Heroku.
ReactiveUI and the MVVM Pattern in WPF Applications
Wikipedia describes Reactive Programming as “an asynchronous programming paradigm concerned with data streams and the propagation of change,” but what is it really?
In this article, Toptal Freelance WPF Developer Denis Jesus Gonzalez Sanchez demonstrates a WPF app using ReactiveUI with the MVVM pattern and uses it to access a REST API.

Denis Jesus Gonzalez Sanchez
Denis is a certified C# specialist and MS certified professional, experienced in several programming languages and business domains.
How to Create a Secure Node.js GraphQL API
GraphQL is a query language for APIs, originally developed by Facebook for internal use. Since its public release, GraphQL has been compared to REST and other architectures.
In this article, Toptal JavaScript Developer Marcos Henrique da Silva demonstrates how to create a GraphQL Node.js API, and explains why you should try it, too.

Marcos Henrique da Silva
Marcos is passionate about REST architecture, Agile development, and JavaScript. He has 8+ years of experience focusing on web apps.
The Back End: Using Gatsby.js and Node.js for Static Site Updates
Static websites are simple and fast, but it’s also possible to automate updates to them to keep them fresh and relevant. Find out how to generate daily-updated HTML pages that track the latest releases of popular GitHub repositories.

Furkan Yavuz
Furkan is an experienced full-stack developer who has worked remotely since 2016. His main expertise includes Java, Angular, and Heroku.
World-class articles, delivered weekly.
Toptal Developers
- Android Developers
- App Developers
- AWS Developers
- Azure Developers
- BigCommerce Developers
- Blockchain Developers
- Coders
- Database Developers
- Embedded Software Engineers
- Flutter Developers
- HTML5 Developers
- Java Developers
- Joomla Developers
- Kubernetes Developers
- Laravel Developers
- Magento Developers
- .NET Developers
- Next.js Developers
- Odoo Developers
- Outsourced Developers
- PHP Developers
- Power BI Developers
- Prototype Developers
- Python Developers
- React Developers
- React Native Developers
- Remote Developers
- Ruby on Rails Developers
- Salesforce Developers
- Security Engineers
- SharePoint Developers
- Shopify Developers
- Software Developers
- Squarespace Developers
- Startup Developers
- Svelte Developers
- Twilio Developers
- Vue.js Developers
- Web Developers
- Web Scraping Developers
- WooCommerce Developers
- WordPress Developers
- View More Freelance Developers
Join the Toptal® community.
















