TL;DR

Senior AI Agent Engineer (AI): Designing and building intelligent agents to automate product operations workflows with an accent on system architecture, prompt engineering, and production-grade reliability. Focus on integrating LLMs into internal enterprise tools and ensuring high output quality through rigorous evaluation and governance.

Location: Hybrid model in Madrid, Spain (near Bernabeu Stadium); relocation package available for international candidates.

Company

Nexthink is a leader in digital employee experience management software, enabling IT teams to proactively diagnose and resolve technical issues at scale.

What you will do

  • Architect and implement reusable AI agent patterns for product management and operational workflows.
  • Define instructions, tool schemas, and guardrails to ensure safe and predictable agent behavior.
  • Integrate AI agents with Microsoft 365, Copilot Studio, AWS, and internal deterministic systems.
  • Establish measurable success criteria, evaluation frameworks, and regression testing for AI outputs.
  • Monitor production performance to optimize token efficiency and response quality.

Requirements

  • 6–8+ years of experience building and owning production systems end-to-end.
  • Strong expertise in system design, including event-driven and serverless architectures.
  • Practical experience integrating AI or LLM-powered workflows into production environments.
  • Proficiency in API, webhook, and REST integrations with complex enterprise systems.
  • Demonstrated ability to translate business needs into scalable, AI-enabled solutions.

Nice to have

  • Experience with Microsoft Copilot Studio or Power Platform.
  • Familiarity with AWS services such as Lambda, Step Functions, or Bedrock.
  • Understanding of conversational UX design principles.

Culture & Benefits

  • Permanent contract with a competitive salary package.
  • Comprehensive private health insurance and daily meal vouchers covered by the company.
  • Hybrid work policy balancing office collaboration with remote flexibility.
  • Unlimited vacation policy on top of 23 annual holidays, plus 3 volunteer days.
  • Professional development support, including 50% reimbursement for language classes.