Services
Web & Mobile Applications
We deliver responsive business web applications, admin portals, Flutter mobile apps, and LINE LIFF experiences. Every build is backed by API contracts, authentication, generated clients, and a deployment pipeline from day one.
Discuss your systemOne service, across every screen.
A customer or staff member starts a task through a responsive web interface, mobile app, or LINE experience.
User task
Application request
Explore an example of the approach. Each project is shaped around its own requirements.
Read the complete flow
Interact
A customer or staff member starts a task through a responsive web interface, mobile app, or LINE experience.
Authenticate
Authentication connects the user to an identity and the access their task requires.
Connect
An API contract connects the interface to the backend process so each screen works with the same service.
Continue
The response returns to the user while the operational team continues the connected workflow.
Services
What's included
Responsive web and admin portals
Flutter mobile applications
LINE LIFF and Mini App foundations
Customer self-service and platform frontends
API-backed user flows and authentication
OpenAPI-generated client libraries
File, image, and media upload workflows
Bilingual localization and accessible UI
How we work
Clear steps for predictable delivery and future scalability.
- 01
Requirement Analysis
Clarify scope, success metrics, and constraints.
- 02
System Design
Architecture, security, and rollout plan.
- 03
Development
Build with reviews, docs, and testing.
- 04
Deployment
Go-live with observability and rollback options.
- 05
Maintenance & Support
Operate, improve, and report regularly.
Contact
Tell us what is slowing the operation down.
Share the system, workflow, integration, infrastructure, or support problem you are facing. We will help clarify the current state, the practical next step, and whether Nexus is the right delivery partner.