Hire vetted Dart developers, engineers, programmers, coders, architects, and consultants on demand. Leading companies choose Dart freelancers from Toptal for their most important development projects.
Chris is a long-time entrepreneur and developer with international experience who worked across industries like healthcare software, real estate, electronics, and internet service. He is passionate about the product creation process and software engineering and is a specialist in using Flutter. Chris is willing to leverage his expertise and experience in developing new projects and help deliver value and results.
Ryan is a senior Flutter developer with 15+ years in app development who excels in crafting visually appealing, user-friendly mobile apps. Passionate about UI/UX, his computer engineering background has contributed to numerous successful app launches. Ryan's blend of technical skills and design expertise make him a top choice for companies seeking a skilled Flutter developer.
Praharsh is a seasoned mobile app and Flutter developer with 6+ years of experience in mobile app development and 5+ years as a Flutter specialist. With technical expertise spanning Dart, Firebase, REST APIs, and unit and integration testing, he's an expert at creating high-performing, scalable, and user-centric applications. Praharsh has successfully led and contributed to many projects, including apps with millions of users.
David is a senior Flutter developer with more than 10 years of experience building robust mobile and web apps. He excels at optimizing CI/CD pipelines for automated testing and deploying web apps to the Google Play Store, Apple App Store, and custom servers. With strong self-management and team management skills, David is eager to apply his expertise to solve complex challenges.
Ivan is an experienced full-stack software engineer with 15+ years of expertise in Android (Java/Kotlin), 4+ years in Flutter (Dart), and 4+ years in Node.js (JavaScript/TypeScript). He excels in crafting scalable, performant, and user-centered applications, fostering collaboration in agile environments, and mentoring and empowering team members to excel. Ivan is dedicated to continuous learning and personal growth and embodying mindfulness, compassion, and empathy in his work.
Saverio is an entrepreneur—named in Forbes 30 Under 30 in 2017—and a full-stack developer with several years of experience crafting products used by thousands of people. He specializes in TypeScript (Angular, Node.js) and Dart (Flutter) and has worked with PHP and Python. In his first startup, Saverio led a team of 15 people (developers, designers, marketing) to create an AI-based smart camera for the blind. Now, Saverio focuses on launching new products and helping other startups do the same.
Akash is a senior Flutter developer with five years of professional experience in mobile application development. He has built and released impressive apps from scratch for various app stores and testing environments using Flutter and Dart. Akash is also highly skilled in Python, JavaScript, and React.
Abdullah is a senior mobile and full-stack developer, specializing in Flutter and GraphQL since 2018. He is experienced in all stages of the development cycle, including estimation, determination of feature feasibility, and delivery of final products. Well-versed in OOP and functional programming, project management, and customer relations, Abdullah collaborates with product owners and delivers solutions using technology stacks that are fast for development and stable in production.
Jeyarathnem is a senior front-end developer with over 11 years of industry experience, with a deep understanding and expertise in HTML, CSS, JavaScript, Node.js, Dart, and UI/UX. He's been involved in many roles, ranging from senior developer to architect, gathering team leadership experience on several projects for local and international clients. Jeyarathnem is keen on fintech, micro-frontends, SPA, PWA, and Flutter, and well-versed in Angular—JS to 12—, Web Components, AMP, and Bootstrap.
Siyavushkhon is an innovative and motivated mobile developer. He's worked as a native Android developer for four years using Java and Kotlin programming languages. Over the last two years, he's been contributing as a full-stack mobile developer on the Flutter framework. So far, he's delivered solutions in many different fields, such as media streaming portals, fintech apps, and AI systems on end devices for face identification tasks.
Tamon is a software developer with six years of full-stack web development experience specializing in TypeScript, JavaScript, React, Node.js, HTML, and CSS. He has a proven track record in developing high-quality and scalable web applications. Tamon is passionate about web standards and keeping up with the latest trends in technology. He will be a great addition to any team.
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.
Our clients
Creating an app for the game
Leading a digital transformation
Building a cross-platform app to be used worldwide
Drilling into real-time data creates an industry game changer
Testimonials
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 startup, 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
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
How to Hire Dart Developers Through Toptal
1
Talk to One of Our Client Advisors
A Toptal client advisor will work with you to understand your goals, technical needs, and team dynamics.
2
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.
3
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.
EXCEPTIONAL TALENT
How We Source the Top 3% of Dart Developers
Our name “Toptal” comes from Top Talent—meaning we constantly strive to find and work with the best from around the world. Our rigorous screening process identifies experts in their domains who have passion and drive.
Of the thousands of applications Toptal sees each month, typically fewer than 3% are accepted.
The first step of the screening process is a comprehensive English language and communication evaluation. We also assess personality traits, seeking only those who are passionate and fully engaged in their work.
STEP 2
In-depth Skill Review
7.4% of applications pass
We test each applicant’s technical knowledge and problem-solving ability through various assessments. Every member of the Toptal network is an expert in their domain, and we typically only advance candidates with exceptional results in this phase.
STEP 3
Live Screening
3.6% of applications pass
Toptal screeners, who are experts in their functional domain, interview each Dart developer. Our screeners provide specific live exercises, looking for problem-solving ability, depth of experience, communication ability, and creativity.
STEP 4
Test Project
3.2% of applications pass
Each candidate is assigned a test project to evaluate whether they can “walk the walk.” Test projects take 1-3 weeks and are comprehensive and provide real-world scenarios for candidates to demonstrate their competence, thoroughness, professionalism, and integrity.
STEP 5
Continued Excellence
Top 3.0% of Dart developers
As a quality-first company, we demand the best from our talent, so they can deliver the best to our clients. This principle permeates every Toptal engagement and delivered project. Only the top 3% of developers can consistently perform at this level.
FAQs
How much does it cost to hire a Dart developer?
The cost associated with hiring a Dart developer depends on various factors, including preferred talent location, complexity and size of the project you’re hiring for, seniority, engagement commitment (hourly, part-time, or full-time), and more. In the US, for example, Glassdoor’s reported average total annual pay for front-end developers is $158,000 as of August 2024. (Dart is a versatile language often used in front-end development.) With Toptal, you can speak with an expert talent matcher who will help you understand the cost of talent with the right skills and seniority level for your needs. To get started, schedule a call with us — it’s free, and there’s no obligation to hire with Toptal.
How can your business benefit from hiring a Dart developer?
The ability to create cross-platform applications, which can conserve time and money, is a key benefit of hiring a Dart developer for your company. Dart developers may also develop scalable, high-performance apps and assist in the optimization of current codebases. They can contribute their knowledge of object-oriented programming, as well as their practical knowledge of related technologies like HTML, CSS, JavaScript, and Git.
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 do I hire Dart developers?
To hire the right Dart developer, it’s important to evaluate a candidate’s experience, technical skills, and communication skills. You’ll also want to consider the fit with your particular industry, company, and project. Toptal’s rigorous screening process ensures that every member of our network has excellent experience and skills, and our team will match you with the perfect Dart developers for your project.
How is Dart different from JavaScript?
Engineers use Dart to develop cross-platform front-end applications, commonly in partnership with Google’s Flutter framework, whereas programmers employ JavaScript to build all types of applications. Like TypeScript, Dart is more type-safe compared to JavaScript, making it a safer choice for a development language.
Can you hire Dart developers on an hourly basis or for project-based tasks?
You can hire Dart developers on an hourly, part-time, or full-time basis. Toptal can also manage the entire project from end-to-end with our Managed Delivery offering. Whether you hire an expert for a full- or part-time position, you’ll have the control and flexibility to scale your team up or down as your needs evolve. Our Dart developers can fully integrate into your existing team for a seamless working experience.
How quickly can you hire with Toptal?
Typically, you can hire Dart developers with Toptal in about 48 hours. For larger teams of talent or Managed Delivery, timelines may vary. Our talent matchers are highly skilled 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 developer, 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.
How are Toptal Dart developers different?
At Toptal, we thoroughly screen our Dart developers to ensure we only match you with the highest caliber of talent. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut.
In addition to screening for industry-leading expertise, we also assess candidates’ language and interpersonal skills to ensure that you have a smooth working relationship.
When you hire Dart developers with Toptal, you’ll always work with world-class, custom-matched Dart developers ready to help you achieve your goals.
What is the no-risk trial period for Toptal Dart developers?
We make sure that each engagement between you and your Dart developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.
Ahmad is a full-stack web and mobile developer with six years of industry experience. He specializes in creating mobile/web applications using Dart, Flutter, JavaScript; the React Native frameworks for the front end; and Node.js and REST API for the back end. Using Dart and Flutter, he developed the Hapi VPN app, which attracts 9,000 daily users. His city-based social mobile app placed second in the Hack4City hackathon, sponsored by the municipality of Izmir, Turkey.
Finding a Dart developer can be challenging as Dart use continues in its upward trajectory. Giants such as eBay and Alibaba use Google’s Dart programming language, with many more businesses choosing Dart for their development needs. Like TypeScript, Dart can compile to JavaScript, so it’s used to create not only mobile and desktop applications, but also web-native software.
The demand for Dart developers is bolstered by the prevalence of the Flutter framework. Dart is the principal language used to build in Flutter, a framework rapidly growing in popularity in the mobile development industry. And, as of 2022, Flutter occupies the top spot in popularity for cross-platform mobile development.
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.
The quality Dart developer knows that Dart is unusual in its ability to compile to multiple CPU targets, such as ARM and x64 machine code for mobile devices, JavaScript for web browsers, and self-contained executables for Windows, macOS, and Linux. This means that for a multiplatform app, developers can work from a single codebase instead of one per platform—a highly cost-effective way to develop an app. It also means that JavaScript technical skills aren’t a hard requirement for Dart developers. Familiarity with JavaScript can help in debugging interactions between Dart code and JavaScript code, but Dart’s built-in tools continue to improve when it comes to such corner cases.
Dart developers who use Flutter in particular can achieve better app performance (i.e., better engage with users) compared to those who use the React Native framework, as Dart/Flutter compiles into native code, whereas React Native takes a slower, JavaScript-based approach.
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:
Junior
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.
Mid-level
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.
Senior
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?
Dart’s ability to produce quick and effective web and mobile applications gives it an edge over other languages. Dart is an open-source, user-friendly, object-oriented language. Moreover, because Dart compiles into JavaScript, it is a flexible option for creating scalable, cross-platform solutions. Dart is suited to both front- and back-end development. The Dart developer community is active in creating fresh libraries and productivity-enhancing technologies to complement and expand its ecosystem.
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.
