Hire the top 3% of AngularJS development consultants.

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Bryan Walsh, United States

Member since February 26, 2015
Bryan is a developer with 11 years of professional experience and 20 years of hobbyist experience. He specializes in the front-end, mobile, and full-stack development utilizing tools like PhoneGap, jQuery, MVC.Net, Angular, and Node. Click to continue

Edward Lin, United States

Member since December 11, 2013
Edward is a web architect, technology enthusiast, and problem solver. With over 12 years of industry experience, he has delivered scalable and robust software for high traffic, enterprise level mobile web and eCommerce applications. Click to continue

Augusto Ferrari, Argentina

Member since April 23, 2014
Augusto is an experienced software developer in various programming languages such as C#, ASP.NET, JavaScript, AngularJS, and many others, in a large variety of projects following software development cycle methodologies such as Scrum. He verifies that business requirements match software requirements and adapts specifications to follow development standards. Click to continue

Nikola Henezi, Croatia

Member since April 10, 2015
Nikola is a sofware developer, computer scientist, and mathematician with years of experience in many programming languages and paradigms. He is a practical individual who prides himself on clear communication and efficient coding. Click to continue

Igor Oleinikov, Canada

Member since August 7, 2013
Igor is an architect and lead developer with extensive experience in the .NET technology stack (including C# and MVC), as well as JavaScript/TypeScript and the like. With a passion for programming, he spends his free time exploring the latest technologies. Click to continue

Sergio Antonio Milici, Argentina

Member since December 17, 2013
Sergio is a software engineer with a talent for developing scalable and efficient solutions for complex problems. He has a comprehensive understanding of design processes, with experience in all the design stages of a product, including research, development, scalability, and testing. Click to continue

Hrvoje Grdić, Croatia

Member since June 1, 2014
Hrvoje achieved a Master's in Computer Engineering while simultaneously working for a telecom company. He has handled the production and testing of numerous applications. He has four years of working experience in multinational companies and Agile teams, including telecoms and banks. Click to continue

Sergij Donchenko, Ukraine

Member since September 9, 2014
Sergey is an experienced front-end developer with extensive knowledge of PHP, but his area of expertise goes beyond the client side, allowing him to work in the capacity of a full-stack engineer. He loves contributing to GitHub, bringing ideas to life and maximizing interface speeds. With over ten years of intensive web application development experience. Sergey has played an active role in the development of numerous web applications. Click to continue

JinGang Liu, China

Member since July 24, 2015
JinGang is a professional mobile and web developer with extensive experience developing enterprise software. He also has a lot of freelancing experience delivering awesome social, taxi, real estate, and fitness apps, among others. He has experience with a diverse range of technologies like Node.js and prides himself on his sophisticated, reusable, and customizable code. He focuses on maintainability and accessibility in all of his products. Click to continue

Šime Buljac, Croatia

Member since September 26, 2015
Šime is a full-stack developer with over six years of experience. He is a passionate programmer who loves to try the latest bleeding-edge technologies. He is very flexible and is equally comfortable working solo or in a team. Click to continue
A hiring guide
Seven Common Pitfalls to Avoid When Hiring a Freelance AngularJS Specialist

Toptal offers the top 3% of AngularJS programmers for hire—so you can scale your team with the world's best AngularJS freelancers. See why top companies and startups trust Toptal to hire top AngularJS experts.

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Director @ Bingosolutions
“Sergio was an awesome developer to work with. Top notch, responsive, and got the work done efficiently.”
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Chief Technologist and Co-Founder @ PriceBlink
“We recently launched our app with the help of Toptal and Nikola, an iOS developer. I was immediately impressed with the constant communication, detail, and level of talent that Nikola brought to the table. More importantly, when the project was underway, Nikola proactively provided creative workarounds for unforeseen hurdles and challenges. I couldn't be happier with our engagement and would highly recommend Nikola and Toptal.”
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Hire a top AngularJS expert now.
Toptal is a marketplace for top AngularJS experts. Top companies and start-ups choose Toptal freelancers for their mission-critical software projects.
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Bryan WalshUnited States
Bryan is a developer with 11 years of professional experience and 20 years of hobbyist experience. He specializes in the front-end, mobile, and full-stack development utilizing tools like PhoneGap, jQuery, MVC.Net, Angular, and Node.
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AngularJS ExpertCSSJavaScriptC#LESSAngularJSjQueryGoogle MapsWebStormVisual StudioAWS EC2AJAX
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Edward LinUnited States
Edward is a web architect, technology enthusiast, and problem solver. With over 12 years of industry experience, he has delivered scalable and robust software for high traffic, enterprise level mobile web and eCommerce applications.
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AngularJS ExpertJavaScriptHTML5LESSPHPExpress.jsAngularJSjQueryNode.jsReact.jsResponsive Web Design (RWD)
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Augusto FerrariArgentina
Augusto is an experienced software developer in various programming languages such as C#, ASP.NET, JavaScript, AngularJS, and many others, in a large variety of projects following software development cycle methodologies such as Scrum. He verifies that business requirements match software requirements and adapts specifications to follow development standards.
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AngularJS ExpertC#JavaScriptASP.NET MVCAngularJS.NET
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Nikola HeneziCroatia
Nikola is a sofware developer, computer scientist, and mathematician with years of experience in many programming languages and paradigms. He is a practical individual who prides himself on clear communication and efficient coding.
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AngularJS ExpertPythonPHPJavaScriptAngularJSSocket.IOReact.jsNode.jsGitMySQL
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Igor OleinikovCanada
Igor is an architect and lead developer with extensive experience in the .NET technology stack (including C# and MVC), as well as JavaScript/TypeScript and the like. With a passion for programming, he spends his free time exploring the latest technologies.
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AngularJS ExpertC#HTML5JavaScriptC++/CLIC/C++SQLKnockout.jsSelenium.NETASP.NET MVCAngularJSjQuery
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Sergio Antonio MiliciArgentina
Sergio is a software engineer with a talent for developing scalable and efficient solutions for complex problems. He has a comprehensive understanding of design processes, with experience in all the design stages of a product, including research, development, scalability, and testing.
[click to continue…]
AngularJS ExpertJavaJavaScriptAngularJSIonic 2CordovaAngular 2Google MapsHybris
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Hrvoje GrdićCroatia
Hrvoje achieved a Master's in Computer Engineering while simultaneously working for a telecom company. He has handled the production and testing of numerous applications. He has four years of working experience in multinational companies and Agile teams, including telecoms and banks.
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AngularJS ExpertPythonJavaScriptSQLRubyJavaAngularJSRuby on Rails (RoR)DjangoGitLinux
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Sergij DonchenkoUkraine
Sergey is an experienced front-end developer with extensive knowledge of PHP, but his area of expertise goes beyond the client side, allowing him to work in the capacity of a full-stack engineer. He loves contributing to GitHub, bringing ideas to life and maximizing interface speeds. With over ten years of intensive web application development experience. Sergey has played an active role in the development of numerous web applications.
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AngularJS ExpertPHPCSSJavaScriptAngularJSAngularUIReact.jsjQueryFacebook APIGitGitHubMySQLAJAX
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JinGang LiuChina
JinGang is a professional mobile and web developer with extensive experience developing enterprise software. He also has a lot of freelancing experience delivering awesome social, taxi, real estate, and fitness apps, among others. He has experience with a diverse range of technologies like Node.js and prides himself on his sophisticated, reusable, and customizable code. He focuses on maintainability and accessibility in all of his products.
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AngularJS ExpertSQLSwift 2JavaScriptJavaPHPPythonSwift 3Objective-CDjangoExpress.jsAngularJSReact.js
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Šime BuljacCroatia
Šime is a full-stack developer with over six years of experience. He is a passionate programmer who loves to try the latest bleeding-edge technologies. He is very flexible and is equally comfortable working solo or in a team.
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AngularJS ExpertJavaScriptExpress.jsAngularJSNode.js
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Seven Common Pitfalls to Avoid When Hiring a Freelance AngularJS Specialist

Hiring a freelancer for Angular jobs can be a scary undertaking, especially when filling a hole in your team’s existing skill set. Whether you’re hiring a freelancer to take ownership of an existing AngularJS web development project, to pave the way with a new greenfield project, or to augment an existing team, you’ll need to know what to look for and what to avoid.

Pitfall No. 1: AngularJS vs. Angular

It's important to know the difference between Angular and AngularJS.

It’s just “Angular.”

Even though it sounds straightforward, not all “Angulars” are created equal.

The team that built Angular has specified in its Branding Guidelines for Angular and AngularJS that “AngularJS” should be used when referring to versions 1.x, and “Angular”—without the “JS”—should be used when referring to versions 2+. That means even Angular 4 is just referred to as “Angular.”

Why does this matter?

It’s important for you and your freelancer to be on the same page and use the right name. While AngularJS and Angular may sound similar, they are in fact distinct frameworks. And just as you wouldn’t expect a React specialist or a Vue.js specialist to hit the ground running with your Angular app, you shouldn’t expect an AngularJS specialist to be an expert in Angular, or vice versa. This isn’t to say they can’t take it on—they’ll just require more ramp-up time.

When hiring for an existing project, be sure to know if you need an AngularJS or Angular specialist. If you’re planning a new project, use Angular!

Pitfall No. 2: Hiring a Developer Who Isn’t Fluent in TypeScript

Angular was written in TypeScript, and it is by far the preferred language for Angular apps. This means that the ecosystem (e.g., libraries and documentation) around Angular is predominantly written in TypeScript.

When hiring an Angular expert, you’ll want to make sure that you’re hiring someone who knows TypeScript and can take full advantage of its amazing features. They should be familiar with tools like Atom and VSCode, which support TypeScript and will highlight errors and provide autocompletion.

Hiring an Angular specialist means hiring a TypeScript specialist, so test their chops!

Pitfall No. 3: Lead or Follow?

Are you looking for someone to augment your existing Angular team? Maintain an existing application? Lead or bootstrap a new project?

An Angular lead should know how to set up a new project. This is an incredibly important part of your project lifecycle.

The answers to these questions will help you determine how much Angular experience your specialist will need to have. As with other frameworks, the skill and experience required to be productive in an established codebase is much lower than what is required to bootstrap a new project. If you don’t need an Angular lead, then hiring someone with React, AngularJS, or great JavaScript experience may suffice, although they will require some learning. If you need an Angular lead, or someone to bootstrap a new project, you’ll want to make sure that your specialist is up to the task.

A professional Angular lead should know how to set up a new project. This is an incredibly important part of your project lifecycle! Think of it like a building—you wouldn’t want to build a skyscraper on top of a shaky foundation. Likewise, your Angular lead will be setting up the foundation for themselves and all future developers working on your project, so it needs to be rock-solid.

A good setup will:

  • Follow best practices (for Angular or AngularJS).
  • Reduce bugs.
  • Make it obvious how to add new features and extend your application.

When hiring a lead, make sure to ask them about best practices, directory structure, and how to set up a single page application (since it requires special routing).

Pitfall No. 4: Your Angular Specialist Doesn’t Really Know Angular

You wouldn’t hire a chef without tasting their food, and you shouldn’t hire someone for Angular or AngularJS development without testing their Angular knowledge. (A great starting point for this is our list of AngularJS interview questions.) Both Angular and AngularJS code come with their own set of peculiarities that you’ll want to talk about.

Data Binding and Component Communication

An Angular specialist should know their way around data binding and component communication.

An AngularJS expert in particular should know the different ways to pass data to a component:

  • @ for raw text
  • & for a function
  • = for two-way data binding
  • =? for optional two-way parameters

Conversely, an Angular specialist should know when to use:

  • [property] binding
  • (event) binding
  • [(two-way)] binding

Your specialist should also be able to tell you how to do parent-child or child-parent component communication, for Angular or AngularJS.

Services, Directives, and Pipes

Your Angular specialist should be able to explain to you what services are (hint: they’re singletons!), and when to use them. Services are a great way to provide common utilities to many components, simplify components by pulling out complex logic, and share state throughout your app. Angular makes it easy to control the scope of this shared state through the use of providers (e.g., app-, module-, or component-level state).

An Angular specialist should also know when to use directives and how to set them up. Directives are an amazing way to extend HTML by attaching custom behavior to elements in the DOM. For example, you could set up a directive to add on-hover tooltips to an element, set up hotkey event handling, or register when a user clicks outside of your element (to close a dropdown, for example).

Any non-trivial application will most likely have its own custom pipes, so your specialist will need to be versed in these, too. Pipes (or filters for AngularJS) are specifically used to transform your displayed data. Angular comes with many built-in pipes, and AngularJS comes with many built-in filters. Ask your specialist about these handy tools, and make sure they won’t repeat the same transformations across the app when they could use pipes or filters!

Promises and Observables

While not strictly Angular-specific, promises and observables are paradigms that are common in the Angular world, and your specialist should be familiar with these as well.

Thanks to promises, we no longer have to live in fear of callback hell, and your specialist should know when and how to use them (such as wrapping REST API requests). Additionally, Angular introduces the use of ReactiveX’s Observables, which provide an awesome way to stream data.

Pitfall No. 5: Not Doing a Code Review

You can talk the talk, but can you walk the walk?

So, your prospective specialist sounds like they know what they’re talking about, but can they actually break down a problem and write quality code?

Do a code walkthrough of some of their existing code that they can share with you. It doesn’t need to be perfect (but if it isn’t, they should be able to explain to you how they’d improve it). Additionally—or if they don’t have any open source code to share—have them code an example component within your problem domain (e.g., a checkout shopping cart, a web form for teachers to add lesson plans, or a to-do list). Alternatively, you can set up some example code and have them explain it and identify bugs and cleanups.

Checking their code can really give you an insight into not only their competency, but also their style. Good style goes a long way in keeping code maintainable and bug-free, and is just a good general indication of their seniority.

Things to look for:

  • They follow best practices (for Angular or AngularJS).
  • Consistency in their style (casing, format, etc.).
  • They use TypeScript for Angular.
  • They can explain how their code works and defend their decisions.

Read up on good code, common JavaScript mistakes, and common AngularJS mistakes. And if you’re hiring someone who has yet to be vetted, you should also test their general programming skills (there’s a reason FizzBuzz weeds out so many freelancers).

Pitfall No. 6: Proceeding without a Testing Strategy

Tests are an essential part of every code base. They’re like a warm, snuggly security blanket for your engineers, giving them confidence that they aren’t breaking anything and costing the company money. Good tests and a good testing strategy will boost your technical wealth, while bad tests, or lack of strategy, will be a constant source of frustration and major code debt.

A good freelancer will advocate for tests and understand their benefits:

  • Guarding against regressions (preventing “What do you mean users can’t sign up anymore!?”).
  • Acting as codified documentation of your codebase, making it easier for other developers to understand, maintain, and extend it.
  • Validating functionality and preventing bugs in pesky edge cases.

If you don’t understand testing, you’ll likely fall into the “We need tests!” trap. This can lead you to hire someone who doesn’t truly understand tests, but will happily write tons of less-than-useful or incredibly fragile tests.

When considering Angular consulting, you’ll want to explore your potential hire’s understanding of tests and determine how they’d go about testing your app.

Things to look for:

  • They understand the fragile nature of front-end testing and how to use constructs like page objects to DRY up test upkeep in the face of template changes and refactorings.
  • They can explain how AngularJS’s digest cycle works, or how Angular’s asynchronous change detection works, and how that impacts testing. (Hint: You need to explicitly resolve asyncs or use wrapping functions to wait for them.)
  • Mocking! They should know how to use spys and stubs/test-doubles in order to isolate tests and remove their dependence on any network calls.
  • An Angular specialist will know that services and pipes are ripe for unit testing. Components are also unit-testable, but with a bit more boilerplate. This is why it is recommended to move complex logic into a service.
  • End to end (E2E) tests will depend on your back-end framework, but an Angular specialist should know about Protractor (although other tools like Nightwatch.js will also work).

To aid in your probing of their abilities, you could provide an example component, service, or directive and ask them what they’d test—maybe even have them write up the “it should (blank)” descriptions of all of the tests they’d write for it, and also write one of them up.

When hiring a professional Angular specialist, don’t superficially ask about tests. Instead, explore their understanding of what to test and how to test it.

Pitfall No. 7: Having Only Non-Developers Interview Your Freelancer

When hiring a freelance developer for Angular(JS) web development, you’ll want to make sure that a developer interviews them. Just because a freelancer is confident, it doesn’t mean they are competent, and a non-developer has a higher risk of making a costly mis-hire. A good developer will be able to recognize someone who knows what they are talking about. Your developer should also validate that the freelancer can walk the walk, through interview questions and challenges.

If you don’t have a senior developer, you can ask a friend or stick with vetted developers.

This Up-Front Effort Will Save You Time and Money in the Long Run

Exploring AngularJS development services can seem like a difficult, opaque, and potentially costly process. After all, if you’re looking for a freelancer to contribute to your existing project or team, it’s incredibly important to find someone who is a good fit and whose chops are up to par. And if you’re building a new project from scratch, in many ways, your project’s future success will depend upon the early-stage decisions made by your specialist.

But don’t panic. By taking the precautions discussed above, you can ensure not only that you’ll be hiring a skilled developer, but also that your project will be on the right track to succeed and to take advantage of all the powerful features that Angular has to offer.

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