In this article, we unlock the secret to a well-organized app development team by sharing principles for structuring your team, assigning roles and responsibilities, and picking the right specialists to successfully develop your app. We’ll introduce you to five ways of recruiting developers to your team and compare their cost-efficiency to enable you to plan your budget. More on this below, so stay with us!

Mobile app development team structure

App development team structure

When you’re looking at how to build a mobile app development team, you first should define what specialists you need and how many. As the size of an app development team depends on the complexity and scale of a project, let’s start with the basic number of specialists required for developing an average mobile app:

  • 1 project manager / product manager

  • 1 UI/UX designer

  • 1 iOS developer / 1 Android developer

  • 1 backend developer

  • 1 quality assurance engineer

Project manager / product manager

When you come to a mobile app development company with your app idea, you’ll be assigned a project manager (PM) to be your assistant and your link to developers. A project manager takes responsibility for a project from start to finish within the agreed budget, time, and quality.

Read more: The role and value of project managers in the app development process.

Product manager is often mistakenly used as a synonym for project manager. But while these two specialists are both managers, they carry out different tasks and have different responsibilities. The difference is in what they’re managing — a project vs a product. A project is finite, with a clear plan of activities and specified start and end dates. A product needs to generate continuous value for users and has no time limits.

A project manager focuses primarily on the performance of the app development process, adherence to deadlines, and quality standards based on the product manager’s vision.

The project manager’s responsibilities include:

  • Handing out assignments to the development team, setting terms for sprints, and prioritizing tasks
  • Estimating your project and staying within your budget
  • Building communication between you as the client and developers as contractors
  • Adapting changes to the app development plan
  • Managing risks and issues
  • Maintaining quality, hitting deadlines, and keeping costs from running out of control

In short, your project manager needs to be a jack of all trades who oversees all app development stages. They should possess the following soft and hard skills:

  • Leadership, communication, critical thinking, time management, teamwork, creativity, diplomacy
  • Familiarity with different project management methodologies like Waterfall and Agile with the Scrum or Kanban frameworks
  • Strong experience using project management tools like TeamGantt, Asana, and Confluence

A product manager identifies the viability of your app idea acquiring the data of competitiveness, specifics, and benefits of a new app that can be used to effectively develop it. A product manager is a strategist who:

  • Analyzes the market; defines your app’s benefits, values, and core features; and examines your target users

  • Identifies users’ vital problems and offers optimal solutions

  • Compiles a business plan for app development

  • Prioritizes worthwhile app features

  • Extracts a unique value proposition and helps you form a powerful call to action

A product manager should have the same soft and hard skills as a project manager as well as strong experience using customer survey tools(SurveyMonkey) and analytics tools like Firebase, Google Analytics, and App Annie.

In some cases, the responsibilities of these two specialists are combined and performed by one person with the project manager title. However, if a project is complex and the scope is large, it’s efficient to divide the workload between a project manager and a product manager.

Project Manager vs Product-manager

UI/UX designer

The main task of the UI/UX designer is to deliver a satisfying user experience by providing a laconic, intuitive, interesting, and engaging app design.

It’s the responsibility of the UI/UX designer to:

  • Create a user persona
  • Think over the user flow and sketch app wireframes
  • Create app prototypes
  • Build intuitive app interface
  • Make changes according to users’ feedback and testing data

Based on these responsibilities, you need to hire a UI/UX designer with the following skills:

  • Expertise working with UI/UX design tools like Figma, InVision, and Sketch

  • Up-to-date knowledge of UX research, wireframing, UI prototyping, UX writing, and interaction design

  • Familiarity with coding to be on the same page with programmers

iOS and Android developers

The iOS and Android operating systems use different programming languages and have different requirements. That’s why you need separate developers for each platform. Whether you should build your app for one platform or both platforms depends on your target audience and your budget.

In general, Android and iOS developers are responsible for the technical part of mobile app development:

  • Turning sketches, mockups, and wireframes into high-quality code

  • Creating and maintaining reusable, reliable, and high-performance code

  • Providing mobile apps with the best quality, performance, and responsiveness

  • Correcting app drawbacks and fixing bugs

To make the hiring process less tedious, let’s dive deeper into skills that highly qualified iOS and Android developers should have.

Required skills for an iOS developer:

  • Mastery of Objective-C and Swift to build native apps
  • Knowledge of the Xcode IDE — the main development environment for macOS, iOS, and iPadOS apps
  • A grasp of how to build apps for the last few generations of iOS and iPadOS

As for an Android developer, they must possess the following skills:

  • In-depth knowledge of the Kotlin and Java programming languages
  • Proven experience using Android Studio, the IDE for Android apps
  • Ability to develop an app that supports many different Android versions, devices, and screen sizes

When choosing cross-platform app development, you need to find a programmer with the following experience:

Backend developer

The backend developer manages a server working, cloud storage, and operational logic.

A backend developer is responsible for:

  • Storing data, securing it, and displaying it to the right user

  • Managing payment systems that can access and securely store data to enable users in-app make purchases

  • Using application programming interfaces (APIs) across devices

  • Building the operating logic across devices

  • Building frameworks and the app architecture

  • Working with databases, integrated development environments (IDEs), and collaboration services

To manage all these tasks, a highly qualified backend developer should have:

  • Hands-on experience with a programming language like Java, .Net, Python, PHP, or Ruby

  • Experience with code versioning tools like Git

QA engineer

The main task of a quality assurance (QA) engineer is monitoring every stage of mobile app development to be sure the design and software adhere to all requirements. The role of a savvy QA engineer in app development can’t be underestimated. Revealing app’s flaws and bugs on time helps you meet the project release deadlines and stick to the budget.
Let’s give a rundown of the QA engineer’s general duties:

  • Perform automated and manual testing

  • Record test progress and document test cases

  • Track bugs throughout testing

  • Identify potential challenges users might face

  • Develop strict testing standards to define app quality and release readiness

What skills except for teamwork should a highly qualified QA specialist possess?

Now let’s summarize what specialists come into play at each stage of app development.

App development stages and team roles

App development team roles

The app development process isn’t just about coding and design. Turning your app idea into an app requires a lot of skills, time, and money at the very beginning and tech support during the whole lifetime of the app.

We’ve divided the app development process into five main stages for simplicity to specify the software development team members who participate in each stage.

  • Stage 1 — Discovery. At this stage, you need to define app goals, values, and features, analyze competitors, identify the target audience, and visualize your app by sketching mockups. At the end of the discovery stage, you need to create a low-fidelity app prototype to be sure you and your development team are on the same page.

  • Stage 2 — Idea validation. At this stage, you should focus on determining your active and paying users and confirming your app’s relevance by asking a group of people to test your app prototype. Based on feedback from beta testers, you can start to develop a medium-fidelity app prototype visualizing your app’s UX design and flow.

  • Stage 3 — UI/UX strategy. This is when you start to design a user interface in detail. You should create a high-fidelity app prototype, making it interactive so your testers can try the app’s navigation and give you feedback about the app’s convenience.

  • Stage 4 — Design and development. At this stage, your app development team starts coding and designing a minimum viable product (MVP) — a feature-oriented product with an attractive design and convenient interface but still not a fully fledged mobile app.

  • Stage 5 — Testing and improving. This stage involves analyzing the user experience to fix all crashes and bugs and change everything required to make your app the best it can be. You can consistently add new app features and test whether they’re needed. Doing so will lead you to develop a fully functional and successful app.

Now let’s figure out the mobile app development team roles according to the above-mentioned development stages.

At the discovery stage, you need to involve a project manager as the key figure in managing the whole app development process. You can also involve a product manager to dive deeper into your target users’ thoughts, needs, expectations, and motivations to use your app and make in-app purchases. Also, you need to add a UI/UX designer into the brainstorming process, compile a business concept, and transform the results of the discovery stage into visual mockups of the initial app prototype.

When you start to validate the app idea, besides a project manager, a product manager, and a UI/UX designer, you need to pitch in all the rest of the team members: a QA engineer for testing, an iOS developer, an Android developer, and a backend developer to create a medium-fidelity app prototype.

To successfully complete the UI/UX strategy development stage, you also need to use the entire development team: a project/product manager, UI/UX designer, iOS/Android developer, backend developer, and QA specialist.

At the design and development stage, the main load comes to the UI/UX designer, iOS and Android developers, and backend developer. They report to the project manager and consult from time to time with the product manager.

Finally, when you move to the testing and improvement stage, the full app development team gets involved again.

Read more: Mobile app development process.

Choosing the size of your app development team

Factors for choosing app development team

How many developers do you need to build an app? Pitching too few specialists in your app development process can cause you to miss deadlines or result in poor development quality. In turn, bringing aboard too many specialists can boost your app development costs and prevent you from completing the successful implementation of your end app.

To choose the appropriate team size for your app development project, you should make an initial estimate of your project development scope. To do this, you need to consider the following factors:

  • Number of platforms you’ve chosen to launch your app on

  • Complexity of your app and the number of features you want to develop

  • Expertise of your development team members

  • Terms of app development

  • Available funds

As for complexity, your app can fall into one of three categories:

  • Simple apps have standard features, low-tech screens, ordinary buttons, and laconic designs.

  • Medium apps offer more complex functionality along with more features, more screens, and more complex graphics.

  • Complex apps need to provide high-tech app features, interactive graphic elements, chatbots, and payment services.

For example, if we’re talking about a full expert development team with a project manager, UI/UX designer, iOS or/and Android developer, backend developer, and QA engineer aboard, we can define the terms of completion for an app in each category as follows:

  • Two to four months of work for developing a simple app

  • Six to ten months to build an app with features of middling complexity

  • Eight months to a year or more for developing a complex app

If your goal is to bring your app quickly to market and your budget is ample, you can hire extra IT specialists and create your app faster. If you’re starting on a shoestring budget, you can simplify your app functionality, start implementing your app on one platform, or hire only a few specialists.

If you have difficulty estimating your app development costs and picking an optimal development team size, you can contact us for a free consultation.

Five models for hiring a staff needed to create an app

Now that you’re aware of the mobile development team structure, the distribution of app development team roles and responsibilities, and the app development team size that’s appropriate for your project, it’s time to figure out the best way of acquiring mobile application development experts for your project.

We’ve distinguished five models for employing specialists to develop your app:

  • Model 1 — In-house developers are specialists sitting in your office and working full-time only on your project. Having an in-house development team enables you to control the app development process and recruit team members on your own.

  • Model 2 — Freelancers are useful when you need to hire individual specialists with a high level of expertise for solving one-time tasks. You can contact freelancers directly, and they’re likely to help you cut costs. You can choose freelancers by browsing their portfolios on freelance platforms.

  • Model 3 — A dedicated team is a group of remote IT specialists you can hire from a third-party service provider. This group will include designers, developers, and QA engineers who work under a project manager. They will work on your project and collaborate with your in-house developers while remaining employees of the third-party service provider.

  • Model 4 — Outstaffing means a third-party development company will provide you one or several specialists to complement your team needed to build an app and provide needed experience. Outstaffing specialists are employees of a third-party company but become part of your development team and perform tasks you assign to them.

  • Model 5 — an outsourcing company is optimal for delegating your entire project implementation from A to Z. Outsourcing means you completely entrust your app’s implementation and shift responsibility for the final result to a third-party development company.

To help you make the right choice, we’ve highlighted the pros and cons of each model in the table below:

Model Pros Cons

In-house team

  • Long-term relationships with employees

  • Complete control over quality and deadlines

  • Maximum security for confidential information

  • Efficient in the long term for complex, large-scale projects

  • Expensive

  • Tedious hiring process

  • Slow project start

  • Requires full play to the development process providing no time for other business competencies


  • Cheapest model

  • Direct contact

  • Fast adaptation to project owner’s needs

  • Efficient for one-time tasks and emergency orders

  • Quality and control issues

  • Takes effort to search for the right specialists

  • Risk of hiring someone who’s unqualified

  • Higher risk of revealing confidential information

Dedicated team

  • Cheaper than outsourcing and in-house models

  • Full control over quality and deadlines

  • Development process organized by a project manager

  • Easy access to specialists

  • Efficient at completing in-progress or short-term projects

  • Time zone differences

  • Language barriers

  • Risk of revealing confidential information


  • Cheaper than a dedicated team

  • Low hiring effort

  • Quick project start

  • Direct supervision

  • Efficient for working on any projects as long as you need

  • Requires additional management

  • Communication issues

  • Risk of revealing confidential information


  • Cheaper than an in-house model

  • Ready tight-knit development team

  • Organized development process

  • Solid expertise

  • Quick project start

  • Ideal for short-term projects and developing entire projects from A to Z

  • Limited control over development

  • Communication issues

  • Higher risk of revealing confidential information

If you’re looking for more information, read the following articles:

How much does it cost to build an app development team?

Hourly rates

The following affect the cost of maintaining the team needed for an app startup:

  • The region in which the team is located

  • The cooperation model

  • The type of employment (full-time, part-time, or hourly rate)

  • Your project scope

Your goal is to develop your app at minimal cost but within the established deadlines and with high quality. To do this, for a start, let’s figure out the average annual salaries of full-time IT specialists in different locations based on Payscale salary reports:

Team member North
India Australia

Project manager






iOS developer






Android developer






Backend developer






UI/UX designer






QA engineer






If you’re from a region with high hourly rates for IT specialists, the best answer for how to build an app development team is with an offshore outsourcing development company that has an existing team of savvy app developers.

If you want to learn how to cut app development costs, read these posts:

Where to find mobile application development experts

Where to find mobile application development experts

If you’re aiming to find an app development team in whom you can put your faith and trust, you should look at lists of the best app developers with ratings, reviews, examples of successfully implemented projects, and detailed information about their development approaches, expertise, and prices. You can find this information on sites like Clutch, AppFutura, Behance, Dribbble, and Upwork.

When looking through information on developers provided by these services, pay attention to the following criteria that your app developers must meet:

  • Expertise. Look for high ratings for developed apps and positive reviews from previous clients.

  • Development costs. Look for the ability to meet your financial capabilities along with the ability to maintain high product quality.

  • Accessibility. Look for ease of communication, an absence of language barriers, and the ability to avoid time zone issues.

  • Level of skills.Make sure a team’s capabilities correspond to your technical requirements and that the team applies top-notch technologies and effective development methodologies.

  • Your personal preferences. See if you feel comfortable with the team while negotiating with them.

Read more: How to find the best mobile app development company to create your perfect app.

Building an app development team: Conclusion

In this article, we’ve shared the most crucial tips on how to build a successful mobile development team. However, in our busy world, it’s often more effective to use ready-made solutions than to build things from scratch. Outsourcing to an app development company can be a reasonable decision because you get a tight-knit team of IT professionals who are ready to start immediately without spending time and money on tedious headhunting. If you need an app development team or a consultation, get in touch with us.