Agent AI Engineer Zaragoza, Spain

About Complete Robot

We are an early-stage venture-backed company currently operating out of San Francisco building AI-enabled systems for automated physical environments.

The company works at the intersection of AI agents connected devices user experience machine data and real-world commercial operations. Complete Robot Inc. was founded by Tomasz Stańczak founder of Nethermind and former Co-Executive Director of the Ethereum Foundation.

To learn more about the company vision and the technology were building visit the Complete Robot website.

About this role:

We are looking for an Agent / AI Engineer to build AI workflows that interact with real-world systems data users and operational tools.

This is a production AI role not a generic chatbot role. The systems must be useful reliable measurable safe and connected to real products and real environments.

For candidates who can start immediately there may be an opportunity to join the founding team in San Francisco stay with the team and build together from a prestigious San Francisco accelerator environment. This is subject to availability travel and visa requirements role fit and mutual agreement.

Responsibilities:

• Build AI agents and workflows for customer-facing and operator-facing use cases.

• Design tool-use patterns that allow AI systems to interact safely with backend systems and device data.

• Build retrieval structured outputs evaluations prompts guardrails monitoring and fallback behavior.

• Work with product and design to create trustworthy AI user experiences.

• Work with backend and edge engineers to connect AI workflows to real system data.

• Measure AI performance in terms of task completion accuracy safety user experience and commercial value.

• Support demos pilots and iteration based on customer feedback.

Requirements:

• Experience building AI LLM agentic conversational recommendation or automation systems.

• Strong programming ability in Python TypeScript or similar.

• Experience with LLM APIs tool calling retrieval structured outputs evaluations and production AI workflows.

• Understanding of prompt engineering RAG agent orchestration AI evaluation and common AI failure modes.

• Ability to build systems that are reliable useful and maintainable.

• English fluency required.

Must Haves:

• Experience with AI agents for commerce customer support retail payments kiosks robotics voice interfaces or physical-world systems.

• Experience with personalization recommendations or conversational UX.

• Experience with permissioning user authentication transaction approval or safety-critical workflows.

• Experience with multilingual AI systems.

• Experience with speech audio multimodal AI or on-device AI.

Success in the first 90 days:

• You build the first working AI workflow for a product demo.

• You connect AI workflows to relevant data and safe system actions.

• You create an evaluation framework for usefulness accuracy and safety.

• You help produce compelling demos for partners and investors.

Success in the first 6-12 months:

• AI workflows are running in real pilot environments.

• The AI layer has guardrails evaluation monitoring and measurable value.

• You become a key owner of the companys AI systems.

Required Experience:

Unclear Seniority