SLA Management App Development -- 2

I'm looking for an experienced mobile app developer to create an app for both iOS and Android platforms. This app will be used by a residence director to manage Service Level Agreements (SLAs).

Key Features:
- Upload and manage SLAs
- Track renewal and service dates
- Monitor costs and expenditures
- User authentication via email and password

Ideal Skills and Experience:
- Proficiency in cross-platform mobile app development
- Experience with secure user authentication
- Strong UI/UX design skills for intuitive navigation
- Background in financial tracking or management apps

Please provide relevant work samples and estimated timelines.