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# AI Scientist - AI Retrieval Systems

- **Company:** Cataluña
- **Location:** Barcelona, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Automated Storage and Retrieval Systems, Graph Database, Python (Programming Language), Machine Learning, Neo4j, Large Language Models, Deep Learning, Information Technology
- **Published:** July 21, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

PhD degree in Data Science, Computer Science, Information Technology, Artificial Intelligence, Physics or related field
1-2 years of experience, preferably in a mathematical, engineering, scientific, or technical setting.
Relevant experience in knowledge graphs and retrieval systems
Strong communication skills
Ability to collaborate effectively within a multidisciplinary and multicultural environment
Curiosity, and a proactive, solution-oriented mindset
Excitement to work in a dynamic and fast-paced environment, ability to thrives in ambiguity
Technical skills
Proficiency in Python
Understanding of fundamental computer science principles
Solid understanding of machine learning principles and architectures
Fundamentals of statistics
Excellent research and analytical skills
Experience in ontology engineering and semantic modeling
Experience in designing and developing RAG systems
Familiarity with Neo4j
Contributions to research (publications in top-tier conferences) or open-source projects
Nice to have:
Proven excellence in relevant areas (e.g., awards, competition wins)
Proven ability to independently solve complex problems or lead challenging projects
Academic or practical background in physics or other natural sciences / engineering
Experience with good coding practices and software development standards
Proficiency in agentic and deep learning frameworks
Hands-on experience with large language models and/or other state of the art models

## Description

As an AI Scientist specialized in retrieval systems and knowledge graphs, you will play a key role in developing Axiomatic's verifiable scientific reasoning. Your responsibilities will include designing, prototyping, developing, testing and iterating on the core architecture. You will also manage data curation, conduct benchmarking to evaluate performance, analyze reasoning flaws and propose solutions. Close collaboration with our focused cross-functional team, consisting of AI Engineers, Software Engineers, Physicists and AI scientists, and regular alignment of the development with the customer and business needs will be essential to the success of the project.
Your mission:
AI Research and Development: Contribute to the development of validated AI reasoning models and architectures, focusing on automated reasoning techniques and application to scientific fields where rigour and reliability are fundamental
Data & Benchmarking: Supervise dataset curation, run benchmarks, and analyze performance results to guide improvements.
Collaboration: Work closely with a cross-functional team of engineers and scientists, collaborating on solving challenging problems at the intersection of AI, physics and engineering.
Documentation and Reporting: Develop detailed technical documentation and present research findings to internal teams and external stakeholders.
Research & Publication: Contribute to cutting-edge research and publish results in top AI conferences and journals, helping advance the global AI research community whenever opportunities arise.


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