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 1,000 staff from 60 countries.

Job Reference: 459_26_CS_CTHPC_RE1

Position: LLVM Software Engineer (RE1)

Closing Date: Saturday, 24 October, 2026

Look At The BSC Experience

BSC-CNS YouTube Channel

We are particularly interested for this role in the strengths and lived experiences of women and under‑represented groups to help us avoid perpetuating biases and oversights in science and IT research. In instances of equal merit, the incorporation of the under‑represented sex will be favoured.

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.

If you consider that you do not meet all the requirements, we encourage you to continue applying for the job offer. We value diversity of experiences and skills, and you could bring unique perspectives to our team.





Context And Mission

The Computer Sciences (CS) department of the Barcelona Supercomputing Center is participating in different projects around the RISC‑V ecosystem and HPC. We are looking for a software engineer that wants to push forward this ecosystem by implementing support for vector support code generation and other features that can speed‑up typical HPC applications when running on RISC‑V.

Key Duties

- Improve the code generation for the RISC‑V Vector Extension to make the most of the available instruction set when it comes to segmented memory accesses.
- Collaborate with upstream LLVM/Clang to the extent possible and contribute if there is interest in the LLVM community for the implemented features.

Requirements

- Education
- Bachelor or Master degree in Computer Science.

- Essential Knowledge and Professional Experience

- Good skills in C++.
- Experience in compiler development.
- Knowledge of LLVM and Clang codebases.

- Additional Knowledge and Professional Experience

- Good knowledge of Linux low level interfaces would be a plus.
- Knowledge of HPC architectures and systems would be a plus.

- Competences





- Have good communication and interpersonal skills to be able to work within a team to complete tasks on schedule.
- Show a problem‑solving, can‑do, pro‑active and result‑oriented attitude.
- Be keen to deliver good quality code and follow good practices in the industry.
- Be curious and willing to learn about LLVM, RISC‑V and HPC.

Conditions

- The position will be located at BSC within the Computer Sciences Department
- We offer a full‑time contract (35h/week), a good working environment, a highly stimulating environment with state‑of‑the‑art infrastructure, versátil 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: November 2026

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, 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

📌 LLVM Software Engineer (Barcelona)
🏢 Barcelona Supercomputing Center
📍 Barcelona