Senior AI Engineer – Agentic Systems & LLM Applications

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior AI Engineer – Agentic Systems & LLM Applications based in Spain.

• This role sits at the intersection of product engineering and frontier AI, focused on building the next generation of AI-native applications.
• You will design and scale autonomous agents capable of reasoning, taking actions, and solving complex, non-deterministic workflows in production.
• The position combines LLM application development, agent orchestration, advanced retrieval, developer tooling, and production AI engineering.
• You will work with leading foundation models and modern AI infrastructure to create reliable, observable, and low-latency systems.
• A major focus will be moving AI solutions beyond prototypes by implementing rigorous evaluation, monitoring, and optimization practices.
• As part of a distributed, global-first team, you will have significant ownership over technical architecture and product direction.
• This is an opportunity to work on challenging AI problems while turning emerging capabilities into practical products with tangible user impact.