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Backend Engineer (Node.js/NestJS) — Buenos Aires, Argentina

Company: Baasi Inc.

Location: buenos aires, London

Posted: May 26, 2026

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Position Details

Backend Engineer (Node.js/NestJS) — Buenos Aires, Argentina - full time

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About Us

We are a stealth-mode startup building a new AI platform. Our mission is to make advanced language models deployable, customizable, and secure across diverse environments.

Role

We are seeking a Backend Engineer (Node.js/NestJS) to extend our platform using our existing codebase. You'll build the proxy backend that interacts with our custom inference runtime and extend dashboards.

This role requires strong backend engineering skills, the ability to integrate existing systems, and comfort working closely with C++/CUDA engineers building low-level runtime features.

Responsibilities

Proxy Backend for Inference Runtime

  • Build and maintain a Node.js-based proxy backend that:
    • Accepts inference requests from the frontend.
    • Schedules and serializes prompts.
    • ...