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Application development

Software shaped around the workflow

SEYON designs, builds, and supports web and enterprise applications, including healthcare applications that need a clear API and a database the team can trust.

Delivery

Software development lifecycle

  1. 1Requirements
  2. 2Architecture
  3. 3Development
  4. 4Testing
  5. 5Deployment
  6. 6Support

Running step 1: Requirements

Architecture

Solution architecture

An example split. The names change with the stack. The boundaries stay useful.

  1. 1

    Frontend

    Web application used by staff or partners

  2. 2

    API layer

    Authentication, validation, and contracts

  3. 3

    Business logic

    Workflow rules kept out of the page

  4. 4

    Database

    System of record and reporting models

  5. 5

    Cloud infrastructure

    Hosting, storage, monitoring, and backup

Active layer: Frontend

Services

Application services

  • Custom web applications

    Staff and partner applications built around a specific workflow, with a responsive interface and a tested API behind it.

  • API and backend development

    REST APIs, services, and data access with validation and authorization kept on the server.

  • Enterprise modernization

    Replace the fragile parts of an existing system without pretending the whole estate must be rewritten.

  • Healthcare applications

    Applications that sit beside clinical and operational systems and respect the sensitivity of the data they touch.

  • Maintenance and support

    Defect repair, dependency updates, and small enhancements after the first release, with a path the team can operate.

  • Web application development
  • Enterprise application development
  • Healthcare applications
  • API development
  • Microservices architecture
  • Frontend development
  • Backend development
  • Database integration
  • Application modernization
  • Authentication and authorization
  • Testing and quality assurance
  • Application maintenance

Technology stack

Technologies used for application work

The stack is chosen for the product and the team that will own it. Listing a technology is not a vendor certification.

  • React
  • Next.js
  • TypeScript
  • Python
  • .NET
  • Node.js
  • REST APIs
  • PostgreSQL
  • SQL Server

Build your application with SEYON

Share the users, the systems it must reach, and what the current tool cannot do.

Build Your Application With SEYON