High-performance Computing

**Job Reference**: - 61_24_OP_US **Position**: - High-Performance Computing (HPC) Application Performance Engineer **Closing Date**: - Tuesday, 29 July, 2025 **Reference**: 61_24_OP_US **Job title**: High-Performance Computing (HPC) Application Performance Engineer **About BSC** - The Barcelona Supercomputing Center - Centro Nacional de Supercomputación (BSC-CNS) is the leading supercomputing center in Spain. 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&D into both computer and computational science (life, earth and engineering sciences) under one roof, and currently has over 1000 staff from 60 countries. Look at the BSC experience: BSC-CNS YouTube Channel Let's stay connected with BSC Folks We promote Equity, Diversity and Inclusion, fostering an environment where each and every one of us is appreciated for who we are, regardless of our differences. **Context And Mission** - Are you passionate about technology, Linux systems, and high-performance computing? Do you want to be part of a leading supercomputing center in Europe? Look no further The Barcelona Supercomputing Center - Centro Nacional de Supercomputación (BSC-CNS) is seeking a talented individual to join our Operations Department as a High-Performance Computing User Support specialist. BSC now hosts one of the largest supercomputers in Europe as part of the EUROHPC Joint Undertaking. MareNostrum 5, a pre-exascale machine, delivers a sustained performance of over 205 PFlops. Its general-purpose partition is one of the largest in the world, with more than 700,000 cores available. Additionally, the accelerated partition features one of the biggest scientific clusters utilizing NVIDIA's new H100 GPU technology, with over 4,400 GPUs. The HPC support team plays a direct role in optimizing the usage of this powerful system. **Key Duties** - Improve the performance of existing parallel codes, improving the serial efficiency and the scalability, changing if necessary the code or helping the developers with their required modifications. - Help the HPC users to run their codes in an efficient way and support the research teams to adapt their codes to new machines. **Requirements**: - Education - Bachelor in Computer Science or related discipline - Essential Knowledge and Professional Experience - At least 1 year of experience in a similar position working with HPC codes - Experience using performance analysis tools, and parallel debuggers. - Experience supporting and collaborating with external partners. - Previous expertise in working with parallel programming models (MPI, OpenMP,...) - Good understanding of Linux environment and Shell scripting. - Additional Knowledge and Professional Experience - Experience analyzing and testing different high-performance computing architectures. - Good level on English - Some knowledge in GPU programming (OpenCL, OpenACC, CUDA or HIP programming) - Competences - Excellent communication and interpersonal skills to be able to work within a team to complete tasks on schedule. - Analytical problem-solving ability. **Conditions** - The position will be located at BSC within the Operations Department - We offer a full-time contract (37.5h/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: 23 paid vacation days plus 24th and 31st of December per our collective agreement - Starting date: asap **Applications procedure and process** - A full CV in English including contact details - A cover/motivation letter with a statement of interest in English, clearly specifying for which specific area and topics the applicant wishes to be considered. Additionally, two references for further contacts must be included. Applications without this document will not be considered. **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_**: The recruitment panel will be composed of at least three people, ensuring at least 25% representation of women. The panel wil