Remote Senior ML Engineer - AI Data Trainer

Alignerr

📍 , , Spain, , , Spain, Spain

Full-time Informática y tecnología Posted March 03, 2026

Job Description

A cutting-edge AI firm is looking for a Senior Machine Learning Engineer - AI Data Trainer to lead authorship of high-fidelity reasoning traces for technical tasks. In this remote role, you will mentor and review structured traces ensuring optimal planning and tool-use documentation. The ideal candidate has significant experience in Machine Learning, particularly in model reasoning and complex problem decomposition, with opportunities for flexible remote work and competitive pay.
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