Ai Agent & Systems Architect

It houses MareNostrum, one of the most powerful supercomputers in Europe, was a founding and hosting member of the former European HPC infrastructure PRACE (Partnership for Advanced Computing in Europe), and is now hosting entity for EuroHPC JU, the Joint Undertaking that leads large-scale investments and HPC provision in Europe. The mission of BSC is to research, develop and manage information technologies in order to facilitate scientific progress. BSC combines HPC service provision and R particularly in deep learning, large language model development, instruction tuning and agentic workflows, as well as related areas of Natural Language and Speech Processing. The successful candidate will work in a highly sophisticated HPC environment, access state-of-the-art computational infrastructure, and collaborate with leading experts both locally and internationally. The researcher will be responsible for designing and implementing innovative techniques for language modeling, evaluation and system adaptation tailored to high-performance computing systems. Key Duties Lead the design and implementation of agentic workflows focusing on multi-step reasoning, tool-use and autonomous decision-making. Architect the integration of Model Context Protocol (MCP) and Function Calling capabilities into the group’s core language models. Supervise the development of robust agent evaluation frameworks to measure reliability, safety and tool-interaction accuracy. Collaborate with the infrastructure team to ensure scalable deployment of agentic systems in high-performance computing environments. Provide technical leadership and mentorship to junior and intermediate researchers by defining the roadmap for the agentic capabilities of the models. Contribute to the scientific community through high-quality publications in top-tier conferences like NeurIPS, ICLR or ACL and Open Source contributions., Development of the recruitment process The selection will be carried out through a competitive examination system (“Concurso-Oposición”). The recruitment process consists of two phases: Curriculum Analysis: Evaluation of previous experience and/or scientific history, degree, training, and other professional information relevant to the position.

• 40 points Interview phase: The highest-rated candidates at the curriculum level will be invited to the interview phase, conducted by the corresponding department and Human Resources. In this phase, technical competencies, knowledge, skills, and professional experience related to the position, as well as the required personal competencies, will be evaluated.

• 60 points. A minimum of 30 points out of 60 must be obtained to be eligible for the position. The recruitment panel will be composed of at least three people, ensuring at least 25% representation of women. In accordance with OTM-R principles, a gender-balanced recruitment panel is formed for each vacancy at the beginning of the process. After reviewing the content of the applications, the panel will begin the interviews, with at least one technical and one administrative interview. At a minimum, a personality questionnaire as well as a technical exercise will be conducted during the process. The panel will make a final decision, and all individuals who participated in the interview phase will receive feedback with details on the acceptance or rejection of their profile. At BSC, we seek continuous improvement in our recruitment processes. For any suggestions or comments/complaints about our recruitment processes, please contact **. For more information, please follow this link. Deadline The vacancy will remain open until a suitable candidate has been hired. Applications will be regularly reviewed and potential candidates will be contacted. OTM-R principles for selection processes BSC-CNS is committed to the principles of the Code of Conduct for the Recruitment of Researchers of the European Commission and the Open, Transparent and Merit-based Recruitment principles (OTM-R). This is applied for any potential candidate in all our processes, for example by creating gender-balanced recruitment panels and recognizing career breaks etc. BSC-CNS is an equal opportunity employer committed to diversity and inclusion.

Requirements Education PhD or Master’s degree in Computer Science, Artificial Intelligence or a related field. Essential Knowledge and Professional Experience Proven track record in developing LLM-based agents, function calling systems or complex AI pipelines. Expert knowledge of Python and Deep Learning frameworks like PyTorch or JAX. Deep understanding of Transformer architectures and recent advances in Agentic AI such as MCP, ReAct or AutoGPT-style patterns. Hands-on experience with modern post-training frameworks including TRL, FastChat, slime or NeMo-RL. Experience with distributed training and large-scale model deployment. Excellent level of written and spoken English. Additional Knowledge and Professional Experience Strong track record of high-quality publications in top-tier conferences like NeurIPS, ICLR or ACL. Significant contributions to Open Source projects in the field of LLMs or agents. Fluency in Spanish is highly valued. Knowledge of Spain’s co-official languages, such as Catalan, Basque or Galician is a significant advantage. Competences Strong leadership and mentorship abilities to guide and support junior researchers. Excellent communication skills for technical and non-technical audiences. Project management skills with the ability to define and execute research roadmaps. Proactive attitude and ability to work in a high-performance computing environment. Conditions The position will be located at BSC within the Directors Department We offer a full-time contract (35h/week), a good working environment, a highly stimulating environment with state-of-the-art infrastructure, flexible working hours, extensive training plan, restaurant tickets, private health insurance, support to the relocation procedures Duration: Open-ended contract due to technical and scientific activities linked to the project and budget duration Holidays: 22 days of holidays + 6 personal days + 24th and 31st of December per our collective agreement Salary: we offer a competitive salary commensurate with the qualifications and experience of the candidate and according to the cost of living in Barcelona Starting date: ASAP Applications procedure and process All applications must be submitted via the BSC website and contain: A full CV in English including contact details A cover/motivation letter with a statement of interest in English

This position is at Barcelona Supercomputing Center The selection process will be entirely managed by Barcelona Supercomputing Center. – About BSC The Barcelona Supercomputing Center - Centro Nacional de Supercomputación (BSC-CNS) is the leading supercomputing center in Spain.