Build secure on-site LinkedIn connect flow using UniPile API (Node.js + TypeScript + React)

We want our users to connect their LinkedIn accounts directly from our website, without being redirected to UniPile’s hosted flow.

Our goal:

A secure, UniPile-compliant LinkedIn connection flow built with Node.js, TypeScript, and React, fully aligned with UniPile’s developer documentation — including all required authentication, encryption, and event handling steps.

You’ll design and implement this integration so that it:

Keeps users on our domain.

Meets UniPile’s technical and security requirements.

Integrates cleanly with our backend.

What we’d like from you (in your proposal):

Review UniPile’s developer documentation - https://developer.unipile.com/docs/linkedin
Explain how you would design and implement this securely within our stack.
Describe your approach to authentication, token management, checkpoint handling, and webhooks.

Share relevant past work (auth flows, LinkedIn integrations, UniPile, or similar API projects).

We’ll share a detailed internal brief once shortlisted:

We’ll evaluate applicants based on:

Security and architectural reasoning.
Understanding of UniPile’s auth and webhook model.
Experience with TypeScript / React / Node.js secure integrations.