Your full time Mobile App Developer for Flutter, Kotlin, Dart

Starting at

$

15

/hr

About this service

Summary

I offer full-time mobile app development services using Kotlin (for Android) and Flutter (for cross-platform) to create high-performance, user-friendly applications tailored to your needs. Whether building from scratch or enhancing existing apps, I focus on clean, scalable code, seamless integrations, and smooth user experiences. What sets me apart is my ability to work flexibly with clients, providing end-to-end solutions—from development to post-launch support—ensuring the app evolves with user feedback and technological advances.

Process

1. Initial Consultation & Requirement Gathering
Understand the client’s goals, vision, and project requirements.
Conduct an in-depth meeting or series of discussions to gather all necessary information about the app's intended features, target audience, design preferences, and any specific technical requirements. Define the scope of the project and set clear expectations.
Project requirements document and initial project scope.
2. Project Proposal & Agreement
Finalize terms, budget, and deliverables.
Based on the initial consultation, provide a detailed project proposal that outlines the deliverables, timeline, budget, and payment structure. Once the proposal is approved, a formal agreement or contract will be signed.
Signed contract, finalized project scope, and agreed payment terms.
3. UI/UX Design & Wireframing (If Applicable)
Design the user interface and experience to ensure the app is intuitive and engaging.
If the project requires custom UI/UX design, I will create wireframes and high-fidelity prototypes using tools like Figma or Adobe XD. These designs will be based on the client’s brand and the app’s functionality. The design will be reviewed and iterated upon until approval is received.
Finalized UI/UX design files and prototypes, ready for development.
4. Development (Kotlin/Flutter)
Begin building the app based on the approved designs and specifications.
Start the development process using Kotlin for native Android apps or Flutter for cross-platform development (iOS/Android). This will involve coding the core features, integrating APIs, setting up databases, and implementing the app’s logic and design.
Initial working prototype or early app version, ready for client feedback and testing.
5. Iterative Feedback & Adjustments
Ensure the app aligns with the client's expectations and address feedback.
After the first working version is delivered, gather feedback from the client on the app's design, functionality, and usability. Make necessary revisions and adjustments based on feedback. This stage may involve several rounds of testing and tweaks.
Updated app versions with implemented feedback.
6. Testing & Quality Assurance (QA)
Ensure the app is stable, bug-free, and fully functional.
Conduct thorough testing including unit tests, integration tests, UI tests, and user acceptance testing (UAT). Test the app on various devices and screen sizes to ensure compatibility and performance. Identify and fix any bugs or performance issues.
QA report and a bug-free, optimized app version.
7. App Store Preparation & Deployment
Prepare the app for release on Google Play and Apple App Store.
Finalize the app by creating all necessary assets for store submission (app icons, screenshots, descriptions). Ensure the app meets platform guidelines for both Google Play and Apple App Store. Prepare and submit the app for review and approval.
App store-ready build (APK or App Bundle), submission to the app stores, and successful app store listing.
8. Post-Launch Support & Monitoring
Ensure smooth performance after launch and address any immediate issues.
Monitor the app after launch for performance issues, crashes, or any user-reported bugs. Provide support for bug fixes and minor updates during the initial post-launch period (e.g., 30-60 days).
Bug fixes and updates based on post-launch feedback.
9. Handover & Documentation
Provide the client with all necessary files, documentation, and instructions for future updates.
Handover the complete source code, project files, and any required documentation, including instructions for deploying updates or building future versions. Provide guidance on how to make minor edits or updates if the client wishes to do so in the future.
Source code, developer documentation, and deployment instructions.

What's included

  • Full Time Application Development

    Develop a fully functional mobile application using either Kotlin (for Android) or Flutter (for cross-platform). The app will include core features such as user authentication, data storage, push notifications, and API integrations, ensuring an intuitive user experience and smooth performance across platforms. Regular code reviews and progress updates will be provided.

  • Complete Source Code and Documentation

    Deliver the full source code of the mobile app, organized and well-commented for ease of understanding and future updates. Additionally, provide detailed documentation including setup instructions, build guides, and explanations of the app's architecture. This ensures maintainability and scalability in the future.

  • UI/UX Design Implementation

    Implement the agreed-upon UI/UX designs in the mobile app using the design tools or prototypes provided (e.g., Figma, Adobe XD, or similar). This will include custom widgets, animations, and responsive design to ensure the app looks great and functions smoothly on all devices. The design will be fully optimized for the target platform (Android or both iOS/Android with Flutter).

  • Cross-Platform Support (For Flutter Projects)

    For Flutter projects, ensure that the app works seamlessly on both iOS and Android, providing a consistent user experience across devices. This includes device-specific optimizations, testing, and ensuring the app adheres to platform-specific guidelines for each store (Google Play & App Store).

  • Third-Party Integrations and APIs

    Integrate third-party services and APIs into the mobile app, such as Firebase (for authentication, real-time database), Stripe/PayPal (for payments), Google Maps, or any other required API. Ensure the integrations are robust, secure, and perform well under various use cases.

  • Testing, Debugging, and Quality Assurance

    Perform extensive testing including unit tests, UI testing, integration testing, and user acceptance testing (UAT). This will ensure the app is bug-free and performs efficiently across all supported devices. Issues will be identified and resolved to deliver a polished and stable product.

  • App Store Deployment (Google Play & Apple App Store)

    Prepare the app for deployment by ensuring it meets all requirements and guidelines set by Google Play and the Apple App Store. This includes creating app store assets (icons, screenshots, descriptions) and handling app submissions. The app will be optimized for approval and launch.

  • Codebase and Deployment Handover

    Upon completion of the project, hand over the full codebase, including all assets, libraries, dependencies, and build configurations. Provide deployment instructions, guidelines for building future versions, and access to necessary developer accounts for app updates or maintenance.

  • Security and Privacy Best Practices

    Ensure the mobile app adheres to best security practices, including data encryption, secure communication protocols, and secure storage of sensitive user data. Implement proper privacy measures to comply with regulations like GDPR or CCPA if necessary.


Skills and tools

Android Developer

Flutter Developer

Mobile Engineer

Dart

Dart

Firebase

Firebase

Firebase Authentication

Firebase Authentication

Flutter

Kotlin

Kotlin

Industries

Computer Software
Mobile
Artificial Intelligence