Overview

As Product Owner in Mainloop Barcelona, you own the end-to-end product lifecycle for AI-native automation that helps professional services across multiple countries. You lead business relationships, define what exists, when to build, and how it achieves measurable adoption. You translate needs into precise specs and acceptance criteria, ensuring ships are used and valuable. You work closely with a developer to deliver real impact and drive product value over time.

Compensaciones / Ventajas relocation support (flights, first-month accommodation)

visa and paperwork assistance

Spanish lessons available healthcare from day one relocation bonus paid holidays and public holidays

Responsabilidades Own the relationship with business stakeholders and sit with end users to understand needs

Define what should exist, in what order, and when to say no, with justification

Write precise specifications and acceptance criteria that guide development

Accept and verify that shipped features meet defined criteria and are demonstrably done

Measure product adoption and outcomes (time saved, error rate, uptake) and report honestly





Manage a portfolio of products with consistent scaffolding and governance

Collaborate with one developer and ensure pair programming alignment on each product

Learn and master the AI-native development approach and contribute to internal processes

Prepare and maintain the handover packs and product documentation

Requisitos principales End-to-end product ownership experience

Ability to read and judge AI-generated outputs from agents

Strong writing skills for specs, acceptance criteria, and no arguments

Comfortable in engineering discussions; not required to code

Fluent English; Spanish advantageous

Relocation to Barcelona with willingness to travel to customer sites

Proven track record of delivering usable software with measurable impact

Decision-making under ambiguity

Empathy and stakeholder management

Clear, precise writing

AI-native product development

Specification writing and acceptance criteria definition

Product lifecycle management in production environments

📌 Product Owner - Mainloop (Barcelona)
🏢 Leyton Et Associes
📍 Barcelona