Cross-Platform Development and Integration

Andrei Chekryshov

(0)

Starting at

/hr

About this service

Summary

I offer comprehensive cross-platform development services, specializing in building mobile applications, robust backend systems, and intuitive admin panels using modern technologies like Flutter, Node.js, Go, and Laravel. With expertise in API integration and end-to-end development, I ensure seamless, scalable solutions tailored to your business needs. What sets me apart is my ability to deliver high-quality, production-ready applications quickly, while maintaining flexibility for future scalability and customization.

Process

Discovery & Consultation

Goal: Understand the client’s requirements, business objectives, and technical needs.

Deliverable: Initial consultation meeting, requirement gathering document.

2. Project Planning & Proposal

Goal: Create a detailed project plan, including timelines, milestones, and deliverables.

Deliverable: Project proposal document, timeline, and cost estimate.

3. Design & Prototyping

Goal: Develop wireframes, UI/UX designs, and an initial prototype for approval.

Deliverable: Design mockups, wireframes, and a functional prototype (if needed).

4. Development

Goal: Build the mobile application, backend system, and admin panel using agreed-upon technologies.

Deliverable: Source code repository, app builds, backend API, and admin panel.

5. Testing & Quality Assurance

Goal: Perform thorough testing, including functionality, performance, and security checks.

Deliverable: Test report, bug fixes, and optimized app ready for deployment.

6. Client Review & Revisions

Goal: Review the deliverables with the client, collect feedback, and implement revisions.

Deliverable: Revised versions of the application, API, and admin panel based on client feedback.

7. Deployment & Handover

Goal: Deploy the application to app stores and servers, and hand over all project files, including documentation.

Deliverable: Deployed app, source code, documentation, and user manuals.

7. Post-Launch Support

Goal: Provide ongoing support for bug fixes, updates, and minor adjustments.

Deliverable: Agreed-upon support package or retainer for future updates.

FAQs

How long does a typical project take?
The timeline depends on the complexity of the project. A basic mobile app with backend services typically takes 4-6 weeks, while larger, more complex projects may take up to 12 weeks or more.
Do you provide ongoing support after the project is completed?
Yes, I offer post-launch support packages that include bug fixes, performance optimization, and minor updates. We can also arrange a long-term maintenance plan for larger projects.
What technologies do you use?
I specialize in Flutter for mobile app development, Node.js, Go, and Django for backend development, and Next.js for web-based solutions. I also integrate databases like MySQL, PostgreSQL, and Firebase, and use Docker for containerization.
Will I own the code once the project is completed?
Yes, once the project is complete and all payments are settled, you will receive full ownership of the source code and associated documentation.
What if I need changes after the project is delivered?
I offer a set number of revisions as part of the project. For additional changes after delivery, we can set up a new contract for further development or updates.

What's included

Custom Cross-Platform Mobile Application
Description: A fully functional mobile application built using Flutter or FlutterFlow, supporting both iOS and Android platforms. The app will include custom features, API integrations, and a responsive user interface, optimized for both mobile devices and tablets. Formats: Flutter project files (.dart, .yaml), APK, and IPA for testing/deployment. Quantity: 1 mobile application with up to 3 core features (e.g., authentication, payment gateway, push notifications). Revisions: Up to 3 rounds of revisions post-delivery, focusing on UI/UX and bug fixes.
Backend API & Database Integration
Description: A robust backend solution using Node.js, Go, or Laravel, including API development and integration with a MySQL or PostgreSQL database. The backend will handle user authentication, data management, and other necessary business logic. Formats: Source code repository (GitHub/Bitbucket), API documentation (Swagger or Postman Collection), database schema, and migration files. Quantity: 1 API service with up to 5 core endpoints and database setup. Revisions: 2 rounds of revisions for endpoint modifications and optimization.
Admin Panel or Web Dashboard
Description: A web-based admin panel or dashboard to manage the app’s data, users, products, or other content, built using Next.js and Tailwind CSS for responsive design. This panel will offer an intuitive interface for non-technical users. Formats: Web application files (Next.js project), deployment guide, and user manual. Quantity: 1 admin panel with access to up to 5 key features (e.g., user management, order tracking, reporting). Revisions: Up to 2 rounds of revisions for functionality adjustments and UI updates.

Example projects