What it Takes to be a Flutter Developer

January 23, 2021

Flutter is an open-source UI software development kit that Google released in 2018. It uses Dart as its primary programming language. Flutter has led to the emergence of new software developers called Flutter Developers.


Cross-platform applications enable companies to cut down on development costs. They eliminate the need to hire different software development teams. These applications also save time since there is only a single code base to manage.

Flutter enables developers to create cross-platform applications. Due to these reasons, the need for Flutter Developers will continue to rise in the foreseeable future.

Table of contents

Who is a Flutter developer

A Flutter developer is an individual who uses the Flutter framework to develop cross-platform applications.

Roles and responsibilities of a Flutter developer

To code applications

Flutter developers use the Flutter SDK to craft beautiful and interactive applications.

To test applications

Flutter developers have to test applications to make sure they do not crash. Testing also ensures that the apps adhere to system and user requirements.

To deliver applications

Flutter developers are involved in the deployment of applications. A mobile app is uploaded on Google Play for Android applications or App Store for iOS applications. User feedback is then monitored and used to make changes to the applications.

Flutter developer tools

Version control tools

These tools allow software developers to keep track of the changes they make on their projects. They also boost collaboration among software developers. As a result, they help increase overall productivity.

Examples of version control tools:

  • Git and Github - To use git, you will need to download and install it to the Code Editor or IDE you are using. Please note that you require a Github account to access its features. All you need to do is write git commands to push your code to a Github repository. Other developers can access the repository (if public) and thus, help you improve your code. You can also set your repository as private.

  • Bitbucket

Flutter framework

Flutter is a UI framework used to develop high performance and high-quality native applications for Android, iOS, web and desktop using a single code base. Dart is the primary programming language for Flutter Framework.

Some features of Flutter that make it popular include:

  • Hot Reloading - It enables developers to load code changes quickly and preserves the app’s state.
  • Hot Restart - It is similar to hot reloading but causes the app to lose its state and takes more time.
  • Availability of widgets which can be imported into Flutter projects easily.

Flutter also supports major UI designs.

These are:

  • Cupertino (iOS).
  • Material Design (Android).

These built-in features enhance the development of Flutter applications. They also allow the apps to look and feel like native applications.

Integrated Development Environment

The three popular IDEs that support Flutter are:

Most Flutter developers pick either Android Studio or Visual Studio Code. They chose IDEs depending on the features suitable to them. Note that Android Studio and Visual Studio Code support the development of full Flutter apps.

Flutter DevTools

This is a tooling web suite for Flutter and Dart developers comprising layout inspection, performance, and memory tools. It contains all the debugging tools that you need to be an effective Flutter developer.

Some of the tools in the Flutter DevTools web suite include:

  • Flutter Inspector - It is used to diagnose and debug layout issues.

  • Timeline - It diagnoses performance problems which often occur during development. Timeline shows the amount of time taken by each widget to render.

Design tools

These are tools used to craft and visualize ideas. Design is an important part of app development. It supports a smooth software development process. Design tools are also helpful when working on personal projects.

Here are some of the most popular design tools:

Flutter developer skills

Dart programming language

Dart is a client-based programming language that is scalable and can be used to write simple scripts. It is an object-oriented and dynamic language. Flutter developers must be familiar with Dart to create powerful applications.

Knowledge on Agile and Waterfall methodology for software development

A software development process involves different phases. For instance, there are idea generation and design stages. The most commonly used software development methodologies are Waterfall and Agile.

  • Waterfall Methodology is a system development lifecycle model used to create a system with a linear and sequential approach.
  • Agile Methodology is also a system development lifecycle model that implements iteration during testing and development throughout the cycle.

A Flutter developer needs to familiarize themselves with these software methodologies to work with ease in a software development team.

Prior knowledge on a Native Language

The native languages for mobile application development include:

  • Swift for iOS applications.

  • Java and Kotlin for Android applications.

Understanding these languages will make it easier to become a Flutter developer.

Mistakes to avoid when learning Flutter development

  • Ignoring native languages: Most software developers will argue that prior knowledge in a native language is unnecessary. However, this is still a requirement for most job descriptions. Since Flutter development is still fairly new, employers must have proof that you know about application development. The only way to show this is by having experience with native languages such as Java, Swift, or Kotlin. In other words, knowing a native language may give you an advantage over a person who only knows Flutter and Dart.

  • Over-relying on one source to develop your career as a Flutter Developer: Flutter and Dart are still fairly new technologies. Relying on a single tutorial or reading material to kick off your career might not give you sufficient knowledge. It is advisable to look into multiple resources to get a good grasp of Flutter and Dart. Different tutors have unique experiences and information on the framework.

  • Learning Flutter generally: Avoid confusion when trying to get into a new profession. Do not learn the framework generally, instead find an example of an application you would like to build from scratch. It will allow you to make mistakes, learn from them, and have an actual project to add to your portfolio. Building such apps from scratch helps you acquire critical skills and experiences. These attributes can help in the creation of more powerful applications.

Getting a job as a Flutter developer

Job description example

Here is an example of a detailed job description for a Flutter Developer. Flutter Developer Job Description.

Flutter developer interview questions

Technical questions a Flutter developer gets during an interview are mostly categorised into two:

  1. Written Questions. They mostly test your knowledge on Dart Programming Language. Its data structures, algorithms, control flows, and general knowledge in the programming language.

  2. Verbal Questions. These questions will test your knowledge on the Flutter framework. They may also include questions on the Dart programming language.

You can have a look at these resources to see more interview questions:

Further reading

To get a better grip on the topic, take a look at these resources:


Becoming a Flutter developer is simple. Dart is a friendly language and Flutter an easy-to-understand framework. Flutter development is an interesting field to dive into. In the future, the demand for Flutter developers is set to increase significantly.

Peer Review Contributions by Wanja Mike

About the author

Diana Mutheu

Diana Mutheu is pursuing a bachelor’s degree in Business Information Technology and learning how to make intelligent applications. She is passionate about technology and its advances, especially in Artificial Intelligence. Diana also loves writing articles and blogs about technology. She spends most of her time building i-apps, hoping one day she will launch her own startup.

This article was contributed by a student member of Section's Engineering Education Program. Please report any errors or innaccuracies to enged@section.io.