AI Research Engineer (Healthtech)

TL;DR

AI Research Engineer (Healthtech): Building sophisticated AI systems and agentic workflows that go beyond simple chat interfaces for revolutionizing drug development. Focus on designing agentic orchestration using LangGraph, prompt engineering & optimization, and RAG pipeline development.

Location: Office in Barcelona

Company

hirify.global is a pioneering Healthtech company dedicated to revolutionizing drug development through the power of AI.

What you will do

• Design and implement complex, multi-step AI workflows using LangGraph or similar frameworks to manage state, loops, and conditional logic.
• Develop, test, and version-control advanced prompts (Few-shot, Chain-of-Thought, ReAct) and use Vertex AI's "Help me write" and prompt optimization tools to refine system instructions.
• Build and maintain Retrieval-Augmented Generation (RAG) pipelines, including document parsing, embedding optimization, and vector database management.
• Establish automated evaluation frameworks using the Vertex AI Gen AI Evaluation Service to measure hallucination rates, groundedness, and relevancy.

Requirements

• 2/3+ years in software/ML engineering, with at least 1 year of hands-on experience building and deploying LLM-based applications in production.
• Deep understanding of how to manage conversational state and memory in complex, non-linear AI graphs (cycles, nodes, and edges).
• Understanding that LLMs are more powerful when treated as reasoning engines within a larger system rather than just text predictors.
• Treat AI engineering like software engineering—applying CI/CD, unit testing for prompts, and structured logging using Cloud Trace and Cloud Logging.

Culture & Benefits

• Dynamic work environment with an international team, where collaboration and diversity thrive.
• Work alongside top talent, united by a shared purpose and committed to making a real impact.
• Competitive base salary and uncapped commission structure.
• Health benefits and flexible hybrid work culture.
• Opportunity to shape the future of a fast-growing AI healthtech company.