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Senior AI Engineer FREELANCE

Hays

badajoz, badajoz, Spain Full-time June 27, 2026

Found Description

Senior AI Engineer


At Hays, we are partnering with a leading technology-driven company to support the development and scaling of advanced AI systems in production.


The mission is to design, build, and optimize agentic AI systems within a multi-tenant SaaS environment, leveraging modern orchestration frameworks and LLM technologies to deliver robust, scalable, and high-quality solutions. These systems involve multi-agent architectures, supervisor–specialist routing, MCP integrations, human-in-the-loop workflows, and strong evaluation and observability practices.


What you will do

  • Design and build production LLM-based systems
  • Architect and implement multi-agent workflows using orchestration frameworks (LangGraph preferred)
  • Develop agent-to-agent communication and integrate tools, APIs, and MCP servers
  • Collaborate with PMs to define requirements and translate them into scalab...

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