CESTO is a mobile application focused on delivering a smooth, modern user experience for its core services. The project required not only designing the interface but also developing the production ready app using Flutter. I led both the UI/UX design and front end development, translating visual concepts into a functional, cross platform mobile application.
Objective
Feels clean and intuitive
Performs smoothly across Android and iOS
Supports core user journeys clearly
Maintains design consistency during development
Is scalable for future features
My Role
UI/UX Designer and Flutter Developer
Responsible for wireframes, high fidelity UI, user flows, Flutter implementation, component creation, and responsive layouts.
Design Process
I worked closely with stakeholders to define user needs, technical constraints, and feature priorities. This helped shape a practical design that could be efficiently implemented.
User journeys were mapped for key actions such as onboarding, browsing, and completing tasks. Low fidelity wireframes helped validate layout and navigation before moving into visual design.
The UI system focused on simplicity and speed, with clear typography, spacing, and component reuse to ensure consistency across screens. Design principles included: Minimal interfaces, Clear calls to action, Accessible color contrast, Mobile first layouts.
I developed the app using Flutter, building: Reusable widgets, Responsive layouts for different screen sizes, Navigation logic and state handling, Smooth animations and transitions, API integration support. Design handoff and development were tightly aligned, reducing iteration cycles.
Continuous testing ensured design fidelity and performance. Feedback from internal reviews was used to fine tune interactions and layout spacing.
Outcome
CESTO launched as a polished cross platform mobile application that reflects a strong design system and efficient Flutter architecture. The project demonstrates my ability to take a product from concept to working app.
Tools Used
Figma, Flutter, Dart, prototyping, UI systems, responsive design
