Project Overview: We are looking for a reliable developer to build the "calculation brain" for a new health-tech platform. This project involves taking a set of physical measurements and body composition data and running them through a specific logic flow to generate a comprehensive health profile and a biological age projection. The project is logic-heavy. We have the internal rules and scoring methodology clearly defined; we need you to build the engine that processes this data and delivers results via a secure API and dashboard. Core Responsibilities: Your job is to build a system that follows this specific workflow: Data Ingestion: Set up an entry point for various physical and postural metrics. Logic Engine: Implement a system that categorizes these inputs into different health pillars, such as body composition, muscle health, and physical structure. Final Assessment & Age Projection: Use our weighted rules to produce a consolidated health score and a projected "Metabolic Age." Service Tiers: Basic: The API returns just a primary score and category. Advanced: The system generates a detailed PDF Report and saves the user’s history for progress tracking. Enterprise: The data is aggregated for a group dashboard with exportable analytics. What we are looking for: Strong Logical Mindset: You enjoy working with rule-based systems and ensuring data processing is 100% accurate. API Experience: You can build a system that talks seamlessly to a mobile or web app. Database Design: You can organise data so that users can track their progress over time. Attention to Detail: The ability to handle multi-layered scoring rules without errors. Deliverables: A fully functional API that gives us results in JSON format. A database to store user results and historical data. Admin area to manage clients and their data. An automated tool to generate PDF health reports for advanced users. Dashboards for corporate clients