Senior Software Engineer (Node.js / Python) - Argentina (Buenos Aires)

Role overview

We are seeking a high‑velocity Senior Engineer to join our delivery team focused on building and scaling digital products. You will be the backbone of a cross‑functional squad, leveraging modern tools to handle heavy lifting so you can focus on system architecture and product iterations. You will work across Python environments to ensure our platforms remain both flexible and scalable.

As a Senior Software Engineer at Beyond, you’ll:

• Take full ownership of backend features, ensuring they are designed for performance, reliability, and observability.
• Build and maintain scalable APIs and services specifically designed to support rapid experimentation and user segmentation.
• Manage integrations and service‑to‑service communication in a polyglot architecture.
• Proactively use AI coding assistants to automate documentation, generate unit tests, and maintain a high development velocity.
• Monitor system health u...