Staffer Scheduling app

Technical: Mobile app development, Native, Ionic. Angular JS, javascript, PHP, MySql Looking for Ionic, Native mobile app developer to achieve below mentioned requirements, or also looking for a readymade software which matches 70% of our requirements and we can customize Business Requirements: The Mobile App will be used to schedule mobile workforce operations. • The employer should be able to post work schedule • The employee should be able to see their assigned schedule • The App should be able to create shifts and roster template per requirement of the company • The employee should be able to view this schedule and shift allotment. • The employer should be able to communicate and notify the schedule in time • The employer can send an available offer for service request • A potential employee or an existing employee can view and accept or deny this offer • The mobile app will provide a two-way communication using voice notes and messaging. • The application should be all device friendly, iOS, Android and others. Looking to develop a mobile APP 1. Employee should be able to see their work schedule 2. and able to communicate with employee and send them shift schedule 3. Shift offer, which they can accept the offer 4. Should be able to communicate with them with voice notes and messaging back and forth 5. Assign a staffer, so they can communicate their staffer 6. Should allow them to put their availability