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Meet our Mobile App Developer community

Braintrust is a user-owned talent platform created by and for the world’s top talent. This includes a talented network of experienced Mobile App Developers available for hire.

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Arildo Junior

Arildo Junior

Mobile Engineer
  • Android
  • Mobile
  • iOS
  • AWS

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Felipe Gomez

Felipe Gomez

Lead Mobile Developer

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Vadim Dagman

Vadim Dagman

iOS Lead

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How to hire Top Mobile App Developers


Hiring a mobile app developer is a crucial step in bringing your app idea to life. There are several factors to consider during the hiring process, such as the developer's experience, technical expertise, problem-solving abilities, and communication skills. In addition to these qualifications, it's essential to take into account the work environment and employment arrangement that best suits your project requirements.

Working at a Startup vs. a Larger Company:

The work environment plays a significant role in the mobile app development process. Startups typically offer a more flexible and dynamic setting, with developers working on various projects and taking on diverse roles. In this scenario, developers often have greater autonomy and the opportunity to contribute to the project's direction. However, working at a startup may involve more uncertainty and risk compared to a larger company.

On the other hand, larger companies often provide a more structured work environment, with defined roles and responsibilities. Developers working in a larger company may have access to more resources, established processes, and support from experienced team members. However, larger companies may also have more bureaucratic hurdles and a slower pace of decision-making, which can impact the development timeline.

Full-Time vs. Hourly:

When hiring a mobile app developer, you can choose between a full-time employee or an hourly contractor. Full-time employees are typically dedicated to your project and receive a fixed salary, benefits, and job security. This arrangement is suitable for long-term projects or companies with ongoing development needs. Hiring a full-time developer allows for better continuity, team cohesion, and commitment to your project's success.

In contrast, hourly contractors or freelancers are paid based on the number of hours worked and may be more cost-effective for short-term projects or specific tasks. They offer greater flexibility in terms of scaling up or down as your project requirements change. However, managing freelancers may require more oversight, and continuity can be a challenge if you need to replace or add developers during the project.

Additional Considerations:

  1. Location: The location of your developer can impact the cost and communication efficiency of your project. Developers in countries with lower living costs may charge lower rates, while those in higher living cost countries may charge more. Also, consider time zone differences and potential communication challenges.
  2. Technical Expertise: Evaluate the developer's proficiency in programming languages, tools, and frameworks relevant to your project, such as Java, Kotlin, Swift, Objective-C, React Native, Flutter, or Xamarin. Additionally, assess their knowledge of UI/UX design, API integration, and database management.
  3. Portfolio and Experience: Review the developer's portfolio to gauge their experience and expertise in mobile app development. Look for projects similar to yours in terms of complexity, industry, or app category.
  4. Communication and Teamwork: Good communication skills and the ability to collaborate effectively with cross-functional teams are crucial for a successful mobile app project. Assess their communication style, responsiveness, and willingness to take feedback and adapt to changes during the development process.

Hiring a mobile app developer involves evaluating candidates based on their technical skills, experience, work environment preferences, and employment arrangement. By considering these factors and aligning them with your project requirements, you can find the right developer to create a high-quality, functional, and user-friendly mobile app.

Technical expertise

A mobile app developer's technical expertise is critical to the success of your development project. Proficiency in programming languages and platforms relevant to your business needs ensures that they can create a well-structured, maintainable, and efficient app. For Android app development, developers should have a strong command of Java or Kotlin and be familiar with Android Studio and the Android SDK. For iOS app development, they should have a deep understanding of Swift or Objective-C, along with experience using Xcode and the iOS SDK. For cross-platform app development, knowledge of frameworks like React Native, Flutter, or Xamarin is essential.

Additionally, a strong foundation in computer science, data structures, and algorithms is necessary to develop robust and high-performing apps. Mobile app developers should be skilled in software design patterns, object-oriented programming, and have experience working with RESTful APIs, GraphQL, or other web services. They should also be familiar with performance optimization techniques, such as caching, memory management, and concurrency handling.

Portfolio and experience

Evaluating a candidate's portfolio and experience helps you determine their skill set and ability to deliver top-notch mobile app development services. Look for a diverse range of projects in their portfolio, which may include different industries, app categories, and platforms like native apps and web apps. Examine the apps' user reviews, ratings, and download numbers to gauge their success. Also, consider the developer's years of experience in mobile app development and any relevant certifications, such as Google's Associate Android Developer certification or Apple's iOS Developer certification.

Experience in Agile or Scrum methodologies, as well as familiarity with project management and collaboration tools like Jira, Trello, or Asana, can be a valuable asset. This demonstrates their ability to work efficiently in a team setting and adapt to changes during the development process.

Problem-solving skills

Exceptional problem-solving skills are essential for app programmers, as they often encounter complex challenges while building and maintaining apps. A developer with strong analytical and critical thinking abilities can quickly identify the root cause of issues and devise effective solutions.

During the interview process, present the candidate with real-world scenarios or hypothetical problems related to your project and ask how they would approach solving them. This exercise will help you understand their thought process, creativity, and ability to break down problems into smaller, manageable tasks. It is also crucial to assess their adaptability and willingness to learn new technologies, as the mobile app development landscape is constantly evolving.

UI/UX design knowledge

A mobile app developer with a solid understanding of UI/UX design principles can contribute to creating visually appealing and user-friendly apps. While they may not be directly responsible for designing the app's user interface, their ability to collaborate with UX/UI designers and provide valuable input is crucial.

Evaluate their familiarity with platform-specific design guidelines, such as Google's Material Design for Android or Apple's Human Interface Guidelines for iOS. This ensures that the developer can create apps that adhere to platform standards, providing a consistent and intuitive user experience. Knowledge of design tools like Sketch, Adobe XD, or Figma can be beneficial, as it enables them to work closely with designers and make minor adjustments when needed.

Developers should also be experienced in implementing responsive designs and optimizing app layouts for various screen sizes, orientations, and devices. Familiarity with accessibility best practices, including support for screen readers, large text, and alternative input methods, demonstrates their commitment to creating inclusive and user-friendly apps.

API integration and database management

Mobile app developers must be proficient in integrating APIs, web services, and third-party libraries to extend app functionality and connect with back-end services. They should have experience working with different types of APIs, such as RESTful, GraphQL, or SOAP, and be familiar with various data formats like JSON or XML. Knowledge of authentication and authorization protocols, such as OAuth, OpenID Connect, or JWT, is essential to ensure secure communication between the app and back-end services.

In addition to API integration, developers should have experience managing databases and data storage solutions for mobile applications. Familiarity with various databases like SQLite, Firebase, Core Data (for iOS), or Realm is crucial for efficient data handling and storage. They should also understand the principles of data modeling, normalization, and indexing to optimize database performance.

Testing and debugging skills

Thorough testing and debugging are vital to ensure a mobile app's quality, performance, and reliability. Mobile app developers should be well-versed in various testing methodologies, including unit testing, integration testing, and functional testing. Familiarity with testing frameworks and tools like JUnit, Espresso, XCTest, or Appium is essential to automate the testing process and identify issues effectively.

Developers should also be proficient in troubleshooting and resolving app issues, such as crashes, memory leaks, or performance bottlenecks. They should be comfortable using debugging tools, like Android Studio Debugger or Xcode's Debug Navigator, and have experience with performance analysis tools like Android Profiler or Xcode's Instruments.

App store deployment knowledge

A mobile app developer should be familiar with the deployment process and requirements for major app stores, such as Google Play Store and Apple App Store. They should understand the submission guidelines, the app review process, and how to create app listings with optimized metadata, screenshots, and app icons.

Experience with app store optimization (ASO) techniques is a valuable asset, as it can help improve the app's visibility in search results and increase downloads. Developers should also be knowledgeable about managing app updates, handling user feedback, and monitoring app performance using app store analytics.

Communication and teamwork

Effective communication and collaboration are crucial for a successful mobile app project. Mobile app developers often work closely with cross-functional teams, including UX/UI designers, project managers, and quality assurance specialists. Strong verbal and written communication skills enable developers to convey complex technical concepts to non-technical team members, ensuring everyone is on the same page.

Assess the candidate's responsiveness, willingness to take feedback, and ability to adapt to changes during the development process. Their ability to collaborate in a team setting and contribute to a positive work environment is essential for meeting project goals and delivering a high-quality mobile app. Familiarity with collaboration tools like Slack, Microsoft Teams, or Google Workspace can facilitate efficient communication and teamwork.

When looking for a dedicated mobile app developer, consider reaching out to app development companies in your geographic location for competitive rates. Alternatively, you can explore freelance app developers on platforms like Braintrust, which provide an extensive pool of candidates with diverse skill sets. Be sure to review resumes, testimonials, case studies, and FAQs to ensure the developer has the necessary frontend and JavaScript expertise, as well as experience in onboarding and product development. By thoroughly evaluating a developer's skill set and experience, you can ensure they are well-suited to meet your project's needs and help your app succeed.

Frequently Asked Questions

How much should it cost to hire mobile app developers?

The cost of hiring mobile app developers varies significantly depending on factors such as their level of expertise, location, the project's complexity, and the development timeline. In general, hiring experienced developers will be more expensive than hiring entry-level or intermediate developers.

Freelance developers typically charge hourly rates, which can range from $20 to over $150 per hour. Developers in countries with lower living costs might charge less, while those in countries with higher living costs tend to charge more. Alternatively, you can hire a developer through a development agency or as a full-time employee. In this case, the cost will depend on the agency's pricing model or the employee's salary, which can range from $50,000 to over $120,000 per year.

How much will it cost to build a mobile app?

The cost of building a mobile app varies widely depending on factors such as the app's complexity, platform (iOS, Android, or cross-platform), the development team's expertise and location, and the app's design and features. A simple app with basic functionality might cost between $10,000 and $50,000, while a more complex app with advanced features, integrations, or customizations could cost upwards of $100,000 or even more.

Additional costs to consider include app maintenance, updates, marketing, and any third-party services or tools used during development. It's essential to create a detailed project scope and budget to estimate the overall cost accurately.

How to hire a mobile application developer?

To hire a mobile application developer, follow these steps:

  1. Define your project requirements: Outline your app's purpose, target audience, features, and preferred platform (iOS, Android, or cross-platform).
  2. Determine your budget and timeline: Establish a realistic budget and timeline for your project.
  3. Search for candidates: Use job boards, freelance platforms, social media, or development agencies to find developers with relevant skills and experience.
  4. Review portfolios: Evaluate candidates' portfolios to assess their experience and the quality of their work.
  5. Conduct interviews: Interview potential candidates to evaluate their technical expertise, problem-solving skills, and communication abilities.
  6. Check references: Contact previous clients or employers to gather feedback on the developer's performance and work ethic.
  7. Provide a test project: Assign a small test project to gauge the candidate's skills, efficiency, and ability to meet deadlines.
  8. Finalize the agreement: Negotiate the contract, payment terms, and project milestones before starting the development process.

Can I hire someone to develop an app?

Yes, you can hire someone to develop an app for you. There are several options available, such as hiring a freelance developer through Braintrust, a development agency, or a full-time in-house developer. The best option for your project will depend on your budget, timeline, and specific requirements.

When hiring someone to develop your app, it's essential to define your project scope, evaluate candidates based on their technical expertise, experience, and communication skills, and establish a clear development timeline and payment terms. By following a thorough hiring process, you can find the right developer to bring your mobile app idea to life.

How many hours does it take to develop an app?

The number of hours it takes to develop an app varies widely depending on factors such as the app's complexity, features, platform (iOS, Android, or cross-platform), and the development team's expertise. A simple app with basic functionality might take between 300 and 800 hours to develop, while a more complex app with advanced features, integrations, or customizations could take over 1,000 hours or more.

Keep in mind that development time also includes project planning, UI/UX design, testing, debugging, and deployment. It's essential to allocate sufficient time for each phase of development to ensure a high-quality, functional, and user-friendly app.

How much does it cost to launch an app?

The cost to launch an app includes development costs, app store fees, marketing, and ongoing maintenance costs. Development costs, as mentioned earlier, can range from $10,000 to over $100,000, depending on the app's complexity and features.

App store fees include a one-time $25 fee for the Google Play Store and an annual $99 fee for the Apple App Store. If your app offers in-app purchases or subscriptions, app stores typically take a 15-30% commission on revenues.

Marketing costs can vary greatly depending on your strategy, but it's essential to allocate a budget for app promotion, including app store optimization, social media advertising, and public relations efforts.

Ongoing maintenance costs include app updates, bug fixes, and server costs if applicable. These costs can range from 15% to 25% of the initial development cost per year.

How hard is it to code an app?

The difficulty of coding an app depends on your programming skills, the app's complexity, and the chosen platform. For beginners, there may be a steep learning curve as they familiarize themselves with programming languages, development tools, and design principles. However, with dedication and practice, it's possible to learn and build a functional app.

For experienced developers, the difficulty lies in tackling complex features, integrations, and performance optimizations. Developers need to keep up-to-date with the latest industry trends, technologies, and best practices to create high-quality apps that meet users' expectations.

What is the cheapest way to develop an app?

The cheapest way to develop an app is often to build it yourself, especially if you have programming skills or are willing to learn. This approach eliminates development costs but requires a significant investment of time and effort.

Another cost-effective option is to use app-building platforms or templates, which provide pre-built components and features that can be customized for your app. While this can save time and money, it may limit your app's functionality and uniqueness.

If hiring a developer or agency is necessary, consider outsourcing to countries with lower development costs or hiring a freelance developer with competitive rates. Additionally, prioritize essential features for the initial release to minimize development time and costs, and plan to add more advanced features in subsequent updates.

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