Senior AI Engineer – Real-Time Voice & Agents (Hybrid)

Concentric Recruitment is seeking a Senior/Principal Software Engineer to join a Barcelona-based hybrid team building AI-driven communication products.

The role requires 5 years in production with modern web tech and fluency in Spanish.

You will develop scalable APIs, real-time voice services, and integrate LLM/AI stacks.

Collaboration with founders and senior engineers will shape the platform's architecture and strategy.

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