Job Description

Your responsibilities

You are a software engineer with a firm understanding of the needs of physics analysis workflows. You will join the ROOT team (https://root.cern) and become a core developer on the ROOT I/O and distributed RDataFrame components in the context of the EP R&D programme.

In particular, you will :

• Contribute to the development of RNTuple and RDataFrame through R&D with a focus on maximising performance on modern hardware and in distributed computing environments
• Design and develop I/O functionality custom to High-Energy Physics (such as efficient file merging, data joins of event data sets)
• Explore new and better ways to use ROOT’s I/O capabilities with Python
• Improve the usability and performance of distRDF, ROOT’s distributed analysis system
• Participate in the ROOT team tasks of support and maintenance

Your profile

Skills and/or knowledge:

• C++
• Python
• ROOT
• Collaborative software development
• Distributed data analysis systems (such as Dask, ROOT distRDF).

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• You have a professional background in PhD in computer science or physics (or a related field) and have either:
  • a Master’s degree with 2 to 6 years of post-graduation professional experience;
  • or a PhD with no more than 3 years of post-graduation professional experience.
• You have never had a CERN fellow or graduate contract before

Additional Information

Job closing date: 05.03.2024 at 12:00 AM (midnight) CET.

Job reference: EP-SFT-2024-16-GRAP

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Target start date: 01-March-2024

What we offer

• A monthly stipend ranging between 6194 and 6808 Swiss Francs per month (net of tax).
• Coverage by CERN’s comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
• Depending on your individual circumstances: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract.
• 30 days of paid leave per year.
• On-the-job and formal training at CERN as well as in-house language courses for English and/or French.

About us

At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world’s largest and most complex scientific instruments, they study the basic constituents of matter – fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature. Find out more on http://home.cern.

We are on a Quest. A Journey into discovery like no other. Bring your expertise to our unique work and develop your knowledge and skills at pace. Join world-class subject matter experts on unique projects, in a Quest for greater knowledge and deeper understanding.

Begin your CERN Quest. Take Part!

Diversity has been an integral part of CERN’s mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.