HPC Software Engineer / HPC Software Engineeress

Center for Climate Systems Modeling (C2SM)

ETH Zurich is one of the world’s leading universities specializing in science and technology. Renowned for its outstanding education, cutting-edge research, and commitment to translating new knowledge and innovations into practice, ETH Zurich is at the forefront of academic excellence.

The Center for Climate Systems Modeling (C2SM) at ETH and the Federal Institute of Meteorology and Climatology MeteoSwiss jointly develop and operate the weather and climate model called ICON. We are currently seeking a High Performance Computing (HPC) Software Engineer to advance the development and optimization of the ICON model (80-100%).

About the ICON Model

To leverage the latest advancements in hardware technology, the ICON model has been adapted to run on Graphics Processing Units (GPUs), making it one of the first models utilized in production on such hardware. Numerous technologies are under consideration for GPU execution; including compiler directives embedded in the code and, for some components, a complete rewrite utilizing a Python domain-specific language (DSL) named gt4py.

Your Role

As an HPC Software Developer, you will be responsible for:

• Porting components of the data assimilation system to GPUs using compiler directives.
• Further developing and optimizing model components rewritten using the gt4py DSL, including the dynamical core of the model.
• Integrating existing models with newly developed DSL-based components to ensure a production-ready system.

In this role, you will collaborate with a diverse and agile team of HPC experts and atmospheric scientists and provide support to users of downstream applications, such as hydrology.

Qualifications

• MSc in Software Engineering, Computer Science, or related fields, with a strong software engineering background.
• Solid programming skills, particularly in Python.
• Extensive experience in GPU programming and HPC development.
• Familiarity with numerical weather prediction or atmospheric sciences is a plus, though not required.
• Open-minded, enthusiastic, and collaborative, thriving in diverse teams.

Our Commitment

At C2SM and MeteoSwiss, we are dedicated to promoting flexible and family-friendly working models. We value a healthy work-life balance and offer interesting, challenging tasks. You will have the opportunity to work with a cutting-edge operational weather prediction system within a highly motivated team, with your work directly influencing the future of operational weather forecasts for Switzerland and enhancing decision-making across all sectors.

Application Process

To apply for this position, please apply online using the form below. Only applications matching the job profile will be considered.

Additional Information

The position is limited to one year, and is available immediately, remaining open until filled. The workplace is located at MeteoSwiss at Zurich-Airport, with the possibility of remote work a few days per week.

For further information about this position, please contact Xavier Lapillonne (he/him) at xavier.lapillonne@meteoswiss.ch (please note, no applications). For more information about C2SM and the collaboration between ETH and MeteoSwiss, visit our website or reach out to Christina Schnadt Poberaj (she/her) at christina.schnadt@c2sm.ethz.ch (applications not accepted).

Please note that applications sent via email or postal services will not be considered.

This selection process is managed by responsible recruiters and not artificial intelligence.

For recruitment services, the GTC of ETH Zurich apply.