REST API Architecting, Design and Development + AWS Hosting (1 LAKH requests per day)

I'm seeking an experienced developer who can architect and develop an API Endpoint for my startup based in UAE. The API will call multiple third-party public APIs, aggregate values from these APIs, and return a calculated score based on certain fields in the merged JSON.

Key Responsibilities:
- Develop a single API Endpoint that interacts with several third-party public APIs
- Aggregate values from these APIs into a single JSON
- Calculate a score based on specific fields in the JSON
- Return the calculated score as part of the API response

Deliverables:
- Complete Source Code
- All scripts and other necessary artifacts
- Clear, comprehensive documentation

The ideal candidate should have:
- Proven experience in API development and architecture
- Strong skills in working with third-party public APIs
- Proficiency in JSON and data aggregation
- Ability to understand and implement calculations based on specific data fields
- Excellent communication skills to understand requirements and provide updates

The attached PPT contains full project details and planned milestones. Please note that the API will primarily interact with various vendor APIs.