Short Term Contract for API integrations - Fintech

We are looking for developers skilled in Python and some amount of react

Sensibull is the biggest Option Trading Platform in India. Our business scales by integration with stock brokers. 

Integration has two parts

1. Login API - The user logs into our platform with a broker's credentials. So user clicks "Login with ICICI" for example, it redirects to the ICICI domain, the user enters his credentials, the bank authenticates the user, and gives us back a temporary session token. The user is then redirected to Sensibull website. The backend of our system then sends this session token to ICICI and gets an access token and user details. Any further interaction between the user and ICICI through our site is then authenticated with the access token. The token can be an oAuth token or a cookie.
2. Positions/Orders API - The user has stocks/assets in ICICI which he wants to see. So we make an HTTP request to ICICI, and ICICI responds with the user's stocks/asset details. We render that to the user's front end.

This is the integration which needs to be done. It is fairly straight forward and takes around a week's time. We have to do this with multiple brokers.