Position
Senior Back-End Engineer (Node.js + AI Workflows)
Location
Remote (Must be based in Buenos Aires, Argentina)
About Bancoli
We are a distributed fintech team focused on AI-first software development.
Our culture prioritizes leveraging AI to handle repetitive tasks, letting engineers focus on critical logic and architecture.
Role Overview
Lead and train AI agents to build our core products (75% of your time).
Perform precise backend engineering and fine‑tuning for secure payment systems (25% of your time).
Act as a conductor of an AI-driven development process, emphasizing strategy over routine coding.
Requirements
Expertise in Node.js & JavaScript with strong backend experience to identify AI errors and optimize logic.
Experience developing high‑traffic applications requiring top performance and data integrity.
Must reside in Buenos Aires with full legal work eligibility.
Proactive problem solver who automates solution...