Multi-bank Node.js Banking API

I'm in need of a skilled developer to implement a banking API that can retrieve account balances and transaction histories from multiple banks. The ideal candidate for this project must be proficient in Node.js.

Key requirements include:
- Implementing functionality to retrieve account balances and transaction histories from multiple banks.
- Ensuring that the API is secure, reliable and scalable.
- Adhering to best practices in API development and documentation.
- Ongoing support for potential updates and bug fixes.

Ideal skills and experience for this project:
- Strong proficiency in Node.js.
- Experience with banking APIs or financial data.
- Ability to ensure security and scalability in API development.
- Familiarity with best practices in API development and documentation.
- Excellent communication and troubleshooting skills.