Toptal is a marketplace for top Dart developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal Dart freelancers for their mission-critical software projects.
Dan has a combination of software development and business management experience, making him a great hire for any project. He specializes in Python, TypeScript, and React and has experience in various languages and frameworks. His management experience comes from his roles as a software team lead at multiple companies and as COO of a small manufacturing company.
Gianfranco is a software architect with 15 years of experience in designing, prototyping, and developing software applications, leading teams of developers, and managing projects efficiently. Gianfranco. excels at interacting with different stakeholders, technical and non-technical, helping companies reaching their goals.
Star has been consulting and developing software for twenty years, with special skills in capturing and communicating requirements, data modeling, and modeling business processes. Her experience largely focuses on media production workflow management, and she has an interest in optimization and complexity reduction in enterprise-level data systems. Her primary platform choices are C# and related Microsoft tools.
Marko is a skilled software developer with over thirteen years of experience with different challenges and types of technologies. "Spartan: keep it short and simple" is his approach to problems where possible. He is also an excellent communicator, with extensive experience in team leadership and successful interactions with customers.
Matias is a dedicated software engineer with over ten years of professional experience focusing on iOS native development. He is a result-driven team player recognized for his hard work, commitment, and efficiency. Matias' technical expertise includes cross-platform proficiency, fluency in multiple programming languages, advanced knowledge of developer platforms, tools, and methodologies, and remote working experience.
Goran was a hobbyist indie game developer on the side for a decade and liked it so much that he pursued a career in it. From junior member of a startup to chief architect in a large company, Goran has a variety of experience in game and web development. He is comfortable at all stages of development (design, implementation, optimization, and integration of cutting edge advanced graphics) and a variety of platforms (2D/3D, desktop, web, mobile).
Dart developers are experts in building web, mobile, and back-end applications. This guide to hiring Dart developers features the best practices, job description tips, and interview questions and answers that will help you identify the best candidates for your company.
... allows corporations to quickly assemble teams that have the right skills for specific projects.
Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.
Building a cross-platform app to be used worldwide
Creating an app for the game
Leading a digital transformation
Drilling into real-time data creates an industry game changer
What our clients think
Clients Rate Toptal Dart Developers4.4 / 5.0on average across 47 reviews as of Oct 18, 2023
Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a start up, they are our secret weapon.
Brantley Pace, CEO & Co-Founder
I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.
Paul Fenley, Director
K Dunn & Associates
The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.
Ryan Rockefeller, CEO
Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.
Jason Kulik, Co-Founder
As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.
Stuart Pocknee , Principal
Site Specific Software Solutions
We used Toptal to hire a developer with extensive Amazon Web Services experience. We interviewed four candidates, one of which turned out to be a great fit for our requirements. The process was quick and effective.
Abner Guzmán Rivera, CTO and Chief Scientist
Sergio was an awesome developer to work with. Top notch, responsive, and got the work done efficiently.
Dennis Baldwin, Chief Technologist and Co-Founder
Working with Marcin is a joy. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it.
André Fischer, CTO
We needed a expert engineer who could start on our project immediately. Simanas exceeded our expectations with his work. Not having to interview and chase down an expert developer was an excellent time-saver and made everyone feel more comfortable with our choice to switch platforms to utilize a more robust language. Toptal made the process easy and convenient. Toptal is now the first place we look for expert-level help.
Derek Minor, Senior VP of Web Development
Networld Media Group
Toptal's developers and architects have been both very professional and easy to work with. The solution they produced was fairly priced and top quality, reducing our time to launch. Thanks again, Toptal.
Jeremy Wessels, CEO
We had a great experience with Toptal. They paired us with the perfect developer for our application and made the process very easy. It was also easy to extend beyond the initial time frame, and we were able to keep the same contractor throughout our project. We definitely recommend Toptal for finding high quality talent quickly and seamlessly.
Ryan Morrissey, CTO
Applied Business Technologies, LLC
I'm incredibly impressed with Toptal. Our developer communicates with me every day, and is a very powerful coder. He's a true professional and his work is just excellent. 5 stars for Toptal.
Pietro Casoar, CEO
Ronin Play Pty Ltd
Working with Toptal has been a great experience. Prior to using them, I had spent quite some time interviewing other freelancers and wasn't finding what I needed. After engaging with Toptal, they matched me up with the perfect developer in a matter of days. The developer I'm working with not only delivers quality code, but he also makes suggestions on things that I hadn't thought of. It's clear to me that Amaury knows what he is doing. Highly recommended!
George Cheng, CEO
As a Toptal qualified front-end developer, I also run my own consulting practice. When clients come to me for help filling key roles on their team, Toptal is the only place I feel comfortable recommending. Toptal's entire candidate pool is the best of the best. Toptal is the best value for money I've found in nearly half a decade of professional online work.
Ethan Brooks, CTO
Langlotz Patent & Trademark Works, Inc.
In Higgle's early days, we needed the best-in-class developers, at affordable rates, in a timely fashion. Toptal delivered!
Lara Aldag, CEO
Toptal makes finding a candidate extremely easy and gives you peace-of-mind that they have the skills to deliver. I would definitely recommend their services to anyone looking for highly-skilled developers.
Michael Gluckman, Data Manager
Toptal’s ability to rapidly match our project with the best developers was just superb. The developers have become part of our team, and I’m amazed at the level of professional commitment each of them has demonstrated. For those looking to work remotely with the best engineers, look no further than Toptal.
Laurent Alis, Founder
Toptal makes finding qualified engineers a breeze. We needed an experienced ASP.NET MVC architect to guide the development of our start-up app, and Toptal had three great candidates for us in less than a week. After making our selection, the engineer was online immediately and hit the ground running. It was so much faster and easier than having to discover and vet candidates ourselves.
Jeff Kelly, Co-Founder
We needed some short-term work in Scala, and Toptal found us a great developer within 24 hours. This simply would not have been possible via any other platform.
Franco Arda, Co-Founder
Toptal offers a no-compromise solution to businesses undergoing rapid development and scale. Every engineer we've contracted through Toptal has quickly integrated into our team and held their work to the highest standard of quality while maintaining blazing development speed.
Greg Kimball, Co-Founder
How to Hire Dart Developers through Toptal
Talk to One of Our Industry Experts
A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.
Work With Hand-Selected Talent
Within days, we'll introduce you to the right Dart developer for your project. Average time to match is under 24 hours.
The Right Fit, Guaranteed
Work with your new Dart developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.
Find Experts With Related Skills
Access a vast pool of skilled developers in our talent network and hire the top 3% within just 48 hours.
The scale and complexity of all requirements—project, customization, payment gateway integration, hosting/server, and API integration—can impact the cost of hiring a Dart developer. A skilled Dart developer can be expensive, but they are instrumental in ensuring that the development process runs smoothly and efficiently.
It’s important to evaluate the needs of your project carefully and determine the scope of work. Choose a developer with a proven track record and experience in the specific areas required for your project. Taking the time to thoroughly evaluate the development process can help curtail unexpected costs and ensure a successful outcome. Per ZipRecruiter, you can expect to pay a Dart developer in the United States about $104,840, on average, as of June 29, 2023.
How can your business benefit from hiring a Dart developer?
A Dart developer can offer answers to technical problems and insights into best practices, using their understanding of auxiliary Dart packages to integrate and use third-party APIs efficiently.
Ultimately, hiring a Dart developer can help your business build high-quality, reliable, and innovative applications that meet your specific needs and goals.
What do I need to look for when I choose a Dart developer online?
When choosing a Dart developer online, it’s important to consider the breadth of their experience, as well as their technical and soft skills. In terms of background, look for applicants with proven track records in developing Dart applications, as demonstrated through their portfolio of work or client testimonials.
In terms of technical skills, look for a developer with a strong understanding of the Dart programming language, as well as experience with related technologies. For cross-platform or front-end work, this may mean strong Flutter experience, unless your tech stack explicitly avoids it. For front-end work without Flutter, a Dart developer will very likely need HTML and CSS skills. Back-end or full-stack Dart developers should be able to integrate payment gateways and APIs, as per a project’s business requirements.
Soft skills are as important as technical skills, with communication at the top of the list. It’s important for the developer to understand your business needs and effectively communicate progress to stakeholders. Flexibility and a willingness to learn and adapt are also desirable qualities to look for in a Dart developer.
Are Dart developers in demand?
Absolutely, there is a demand for Dart developers, particularly with the growing popularity of Flutter for building cross-platform mobile apps. Businesses are in need of Dart-savvy developers to assist in the creation of high-performance, native-like apps for both the Android and iOS mobile platforms. The adoption of Dart in IoT applications, server-side development, and web development also increases the need for Dart developers. The demand for qualified Dart developers is only anticipated to grow as more businesses adopt Flutter and other Dart-based technologies.
How quick is the hiring process with Toptal?
Typically, you can hire a Dart engineer with Toptal in about 48 hours. Our talent matchers are experts in the same fields they’re matching in—they’re not recruiters or HR reps. They’ll work with you to understand your goals, technical needs, and team dynamics, and match you with ideal candidates from our vetted global talent network.
Once you select your Dart expert, you’ll have a no-risk trial period to ensure they’re the perfect fit. Our matching process has a 98% trial-to-hire rate, so you can rest assured that you’re getting the best fit every time.
This hiring guide explores how to identify the Dart developers who are best suited to handle your company’s particular business requirements. You will also find tips for writing effective job posts and navigating the interview and assessment processes.
What attributes distinguish quality Dart Developers from others?
A quality Dart developer uses their hard and soft skills to deliver first-class applications that not only fulfill business objectives, but also go above and beyond client expectations.
Using Dart, a programmer can deliver scalable, high-performance apps that are dependable and easy to maintain. A quality Dart developer:
Creates a wide range of apps. These include web, mobile, and back-end applications.
Builds new features and/or enhances the functionalities of existing features and apps. For example, Dart can be used to enable a mobile app to connect to a VPN server.
Understands object-oriented programming (OOP). As Dart considers each element within the app to be an object, quality Dart developers habitually think in terms of OOP.
Is experienced with and comfortable using with Dart’s advanced features. Dart’s asynchronous code and concurrency features, for example, improve an application’s responsiveness.
Integrates Dart apps with other platforms or systems. A developer’s familiarity with other relevant technologies—such as Flutter or Angular—is crucial for a broader development project.
In addition to this roster of skills, a quality Dart developer will also have experience with cross-platform development, even though it’s not a requirement of all projects.
Finally, being well-versed in Git enables the quality Dart developer to track code changes in an organized and accessible repository, to provide transparency, and to collaborate efficiently.
How can you identify the ideal Dart Developer for you?
Before hiring a Dart developer to work in your organization, consider the candidates’ technical expertise and experience, capacity for teamwork, and comprehension of your company’s particular demands and project requirements.
Junior, mid-level, and senior talent are the standard classifications for varying degrees of competence and experience in development:
Performs simple, repetitive tasks based on existing code and patterns but will need resources and guidance to create wholly new features in a maintainable way.
Performs more complex tasks, such as architecting small, self-contained features. Ideally, a mid-level developer possesses the ability to balance their workload, shifting priorities as necessary in order to accommodate surprises.
Has extensive programming and management expertise, and more cross-platform experience, as well as the capacity to develop scalable, maintainable applications.
What Dart development expertise level should you target?
Before you write a Dart developer job post, consider the type of developer who would make an ideal candidate for the position. What level of expertise do they need in order to be successful in the role? Will the person be working on just one task repeatedly? Will they be tending to a tame field, writing simple code? If so, a junior developer will do.
Will they need to be ready to shift priorities in order to “put out fires”? If so, you may need to keep an eye out for a mid-level or perhaps a senior Dart developer, depending on the project’s complexity and budgetary constraints.
Will the requirements of the job include solving complex problems or writing complex, optimized algorithms? Then you need to hire a senior Dart developer.
Consider the specifics of the job so that you tailor the job post to resonate with the ideal candidates for you. Also, consider your project’s unique demands and specifications, budget, and schedule. Then, target the appropriate technical expertise level for your Dart developer.
For example, creating a basic inventory tracker—with no bells and whistles—is a simple project. With few features to implement, a junior developer will do.
If, on the other hand, the project is more complex—for instance, modifying your inventory tracker to include a live tracking system, an e-commerce platform, and a financial information viewer—you will need a senior developer or perhaps a team of senior developers.
For a project whose scope falls somewhere in between these examples, consider whether you need one developer or more, as well as the level(s) of expertise required to execute the work. Generally speaking, the more features, the more complex the job—and the more technical expertise you’ll require of your developer(s).
How do you determine whether to pay for an expert versus a junior talent?
A highly qualified candidate who is able to work more effectively, generate higher-quality code, and have experience working with complex systems or architectures will cost more. Developers with less experience are less expensive but require training and resources.
How do you begin the hiring process?
Begin by identifying technical skills gaps. This information can be collected by interviewing subject matter experts, assessing the competencies of current team members, or researching market trends and ideal procedures. You may also wish to define a problem statement, which can serve as the basis for guidance on whether to choose a junior, mid-level, or senior Dart developer.
How to Write a Dart Developer Job Description for Your Project
To attract qualified applicants to your specific Dart developer position, it’s important to provide a thorough and detailed description of the job. Articulate the developer’s daily and longer-term responsibilities. State the job’s requirements, including the Dart programming language proficiency level (i.e., junior, mid-level, or senior Dart developer), and whether you need cross-platform technical expertise (e.g., Flutter) or whether you require any complementary technology or language (e.g., HTML, CSS, Git).
What are the most important Dart Developer interview questions?
Asking the right questions during interviews with qualified candidates for your Dart developer will allow you to assess whether they are suited to the position. Following are some questions you might ask:
What are Dart’s benefits over other programming languages?
What are the data types in the Dart language?
In Dart, there are several built-in data types, including numbers (integers and doubles), strings, Booleans, lists, sets, and maps. Dart also supports more advanced types like generics and user-defined types via enums and classes. Numbers can be used for arithmetic operations, while strings hold text. Booleans are used to represent true/false values. Lists, sets, and maps are used to represent collections of data: Lists hold ordered collections of items, sets hold unordered collections of unique items, and maps hold key-value pairs. Enums are used to define a fixed set of constant values, while classes provide a way to define custom types and encapsulate data and behavior within them.
How is Dart code troubleshot and debugged?
Troubleshooting and debugging should be approached systematically. Sometimes a quick look at the code or a few print statements will help determine the source of the issue. If not, tools such as the Dart DevTools suite can help to isolate an issue and identify potential solutions. It’s important to document any findings and changes made to the code to ensure transparency and facilitate collaboration with team members.
Finally, it’s best to leverage Dart’s unit, component, and end-to-end testing utilities to test a solution thoroughly while ensuring it doesn’t cause new issues or resurface old bugs.
What are Streams in Dart?
Streams in Dart are a collection of events that can be handled asynchronously, one at a time as they occur. Streams are used to address asynchronous data, such as data that comes from an external source. Rather than wait for all of the data to arrive before processing it, a stream lets the developer handle and alter data as it comes in. Streams are a feature of Dart’s standard library and are widely used for handling data in real time (e.g., in chat programs, news feeds, or stock tickers).
What are the supplementary packages published by Dart?
Dart includes a huge library of add-on packages to expand the language’s functionality. Among the more popular choices is http, a package that aids in sending HTTP requests. The rxdart package is used for reactive programming. The intl package supports localization and internationalization, and the shared_preferences package maintains persistent key-value pairs.
Why is null safety important in Dart?
Dart 3, released in May 2023, makes null safety a hard requirement; as such, from a project standpoint, it’s important to know how null safety works and how to migrate code to null safety to stay current with tooling. In terms of everyday coding, null safety eliminates the possibility of null pointer exceptions and certain other runtime errors. Also, null safety carries performance benefits by enabling new classes of automatic optimizations of Dart code.
Why do companies hire Dart Developers?
Dart is a popular choice for building web, mobile, and server applications. It is particularly well suited for developing high-performance cross-platform mobile apps using Flutter, Google’s UI toolkit. Companies hire Dart developers to enhance their offerings to the user community and to maintain and fix existing Dart applications.
Dart is a strong and adaptable language that a developer can use to create top-notch apps across a wide range of platforms. There was a time when companies had to hire separate developers for each platform (e.g., maintaining separate iOS and Android codebases). But today, hiring a Dart developer to work on a single, unified codebase will save a company considerable costs.
The technical content presented in this article was reviewed by Emmanuella Ubani.