Responsive Web App in Angular

Objective of this web/mobile application is to automate operations of a retail cum healthcare business. The application needs to incorporate latest technologies, frameworks, design patterns using only opensource technologies. This piece of outsource activity involves front-end design related and integration with database/api/backend interfaces only. Database and api will be provided. The specifications are indicative only and may vary up to 20%. A legacy system screens will be provided for reference and mockups need to be designed and part of outsource activity.