This project posting is primarily to collect detailed proposals and cost estimates. Shortlisted freelancers/agencies will be contacted for discussions before final award. Proposals must reference at least one specific section of the attached SRS to be considered. Proposal must include: - Estimated total project cost - Timeline with major phases/milestones - Technology stack - Team structure (roles & experience) - Relevant Healthcare or SAAS projects - Assumptions and exclusions Digital Wellness Platform – Software Requirements Summary 1. Introduction 1.1 Purpose This document outlines the high-level software requirements for a SaaS-based digital wellness and healthcare platform to be developed by an external vendor via a freelancer platform. It defines scope, core features, integrations, and non-functional expectations for the initial release and future iterations. 1.2 Product Overview The product is a multi-tenant digital wellness platform enabling users to track health data, follow structured wellness programs, and interact with coaches/clinicians via web and mobile applications, supported by a secure cloud backend. The platform supports both direct-to-consumer users and organizations (clinics, wellness centers, employers). 1.3 Target Platforms and Users Platforms Responsive web application (desktop and mobile browsers) Cross-platform mobile app (Android & iOS) User Roles End users (patients / wellness users) Coaches / clinicians Organization administrators Super administrator 1.4 Assumptions and Constraints Cloud hosting suitable for health data (HIPAA-aligned / GDPR-aware where applicable) Modern tech stack (React/React Native or equivalent, Node.js or Python backend) Agile delivery with Git-based version control and CI/CD practices 2. Overall Description 2.1 Product Perspective The system is a multi-tenant SaaS platform with isolated organizational spaces and a shared core. It exposes APIs for web and mobile clients and allows future third-party integrations. 2.2 Core Functions User onboarding and authentication Health data logging and visualization Wellness programs, goals, and reminders Appointment scheduling Secure messaging and notifications Administration console and analytics 2.3 User Characteristics End users: Non-technical, mobile-first Coaches: Manage multiple users, programs, and sessions Organization admins: Manage users, content, and configuration Super admin: Global configuration and monitoring 2.4 Dependencies Email/SMS providers (e.g., SendGrid, Twilio) Push notifications (FCM/APNs) Optional: SSO and health APIs (Google Fit, Apple HealthKit) 3. Scope 3.1 In-Scope (Initial Release) User registration, login, profiles Role-based access and tenant management Health metric logging and charts Programs, tasks, and goals Appointment booking and reminders Secure messaging and notifications Admin console and basic analytics 3.2 Out-of-Scope Deep EHR/EMR integrations Insurance or billing engines Advanced AI diagnostics Public developer APIs 4. Functional Requirements (Summary) User Management & Authentication Email/phone registration with verification Optional social/SSO login Role-based access control Multi-tenant organization isolation Profiles & Health Data User profile and preferences Manual health metric logging with time-series visualization Optional third-party health data sync Programs & Goals Program creation by admins/coaches User enrollment and progress tracking Goals linked to tasks or metrics Automated reminders Appointments Coach availability management Booking, rescheduling, and notifications Calendar views for users and coaches Session tagging and optional notes Communication Secure 1:1 messaging (user–coach) Broadcast messages by admins/coaches Configurable notifications and preferences Administration Organization and user management Content, metric, and template configuration Basic branding per organization Audit logs for key actions Analytics & Reporting Dashboards for admins and coaches CSV/Excel export with access controls 5. Non-Functional Requirements Security & Privacy HTTPS/TLS everywhere Encrypted storage for sensitive data OWASP Top 10 protections Privacy-aligned design (HIPAA/GDPR principles) Performance & Reliability Scalable, stateless architecture Backups, monitoring, and alerting Usability & Maintainability Mobile-first, intuitive UI Modular, well-documented codebase Clear separation of frontend, backend, and infrastructure 6. Technical Expectations (Flexible) Web: React or equivalent Mobile: React Native / Expo or similar Backend: Node.js or Python (REST/GraphQL) Database: PostgreSQL or equivalent Auth: OAuth2/OIDC-based authentication Infrastructure: Cloud hosting, Docker, CI/CD 7. Quality Assurance Unit and integration tests for core flows Basic end-to-end testing Dev, staging, and production environments 8. Delivery & Collaboration Agile delivery with regular demos Shared source repository Full documentation and handover Vendor must have experience in healthcare, wellness, or SaaS platform