Backend Developer (Node.js / Express + Stripe + Web3 Integration) Job (Remote)

Key responsibilities:

1. Build secure REST API endpoints for authentication, Stripe, and crypto transaction handling
2. Validate JWT tokens and extract claims such as authId, env, and gameId
3. Implement secure server-to-server API communication with the Game Server
4. Handle Stripe webhook events for success and failure, and forward them to the Game Server
5. Receive blockchain transaction hashes and submit them to the Game Server
6. Integrate with PostgreSQL for logging and state management

Requirements:

1. Possess 8+ years of experience with Node.js and Express.js (TypeScript preferred)
2. Demonstrate experience with Stripe including webhooks and Checkout flow
3. Show familiarity with EVM-based blockchain logic and transaction hash verification
4. Exhibit PostgreSQL experience and understanding of secure API practices
5. Display solid knowledge of REST and JWT authentication

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