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Senior Buyer / Purchasing Manager

ETHOS | madrid, Spain | Posted May 26, 2026

Position Overview

Note: This is a flexible, part-time opportunity that is 5-20 hours per week at $75 per hour (up to $1.5k/week). It can be done remotely and can be done both alongside or instead of full-time employment.
Asegúrese de presentar su candidatura con toda la información solicitada, tal como se expone en la descripción del puesto a continuación.
We're working with a leading foundational AI lab to find experienced buyers and purchasing professionals who can help train their latest language model on procurement and sourcing tasks.
We're looking for senior buyers with 5+ years managing complex supplier relationships and procurement processes at top companies to create, evaluate, and refine AI-generated work across core purchasing workflows: supplier evaluation, RFQ and contract negotiation, purchase order management, cost analysis, and inventory planning.
Compensation:
$75/hour
Commitment:
Flexible, up to 20 hours per week (up to $1.5k/week)
Location:

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