Senior Ai Engineer (Knowledge Graphs)

TL;DR

Senior AI Engineer (Knowledge Graphs): Responsible for building a structured knowledge foundation that enhances AI solutions, adding context, reasoning, and explainability to Generative AI systems. Focus on designing and evolving formal ontology and semantic models and integrating LLMs with Knowledge Graphs.

Location: Hybrid, 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 evolve the formal ontology and semantic models for our knowledge graph, accurately capturing complex domain knowledge and relationships.
• Design, build, and optimize the knowledge graph architecture using graph database technologies.
• Write complex, high-performance graph queries.
• Collaborate with Data Scientists, ML Engineers, Product Managers, and domain experts to translate business requirements into technical knowledge graph solutions.
• Monitor, analyze, and optimize the performance of the graph database and associated pipelines for scalability and real-time query speed.

Requirements

• Minimum of 3+ years of hands-on experience in designing and implementing large-scale Knowledge Graphs in a production environment.
• Deep expertise in ontology engineering, semantic modeling, and experience with standards like RDF, RDFS, OWL, and SPARQL.
• Proficiency with at least one major graph database.
• Practical experience integrating LLMs with Knowledge Graphs.
• Strong programming skills in languages essential for data engineering, primarily Python.
• Experience applying NLP techniques for text processing and structuring (NER, relation extraction).

Nice to have

• Master's or Ph.D. in Computer Science, Artificial Intelligence, or a related technical field.
• Contributions to research or open-source projects.
• Experience with Google Cloud Platform and Vertex AI.
• Familiarity with Graph Machine Learning.

Culture & Benefits

• Work alongside top talent, united by a shared purpose and committed to making a real impact.
• Comprehensive private health coverage to ensure your physical and mental well-being.
• Company-sponsored gym membership to support your fitness goals.
• Hybrid work model offering flexibility to balance your professional and personal life.
• Enjoy coffee, tea, beverages, and snacks throughout the day.
• Participate in company events to celebrate achievements and enjoy time together.