Your responsibilities

Are you an experienced software developer, or a scientist with a masters degree or PhD interested in the challenges offered by computing for High Energy Physics? Do you want to contribute to the software R&D at the heart of LHC data processing?

Join the EP-SFT group at CERN, responsible for developing and maintaining core software packages used by the experiments at the Large Hadron Collider, the world's largest particle accelerator. You will become a core C++ software developer in the team developing the CernVM-FileSystem (CVMFS, https://cernvm.web.cern.ch/fs).

CVMFS is a global, read-only filesystem that specializes in delivering software and helps to enable distributed scientific computing across cloud- and supercomputing sites at a global scale.

In particular, you will:

• Improve the performance and usability of the CVMFS client and publisher
• Work with cloud- and supercomputing facilities to make CVMFS more accessible
• Contribute to the baseline support and maintenance tasks of the project.

Your profile

Skills

• Experience with software version control (e.g. git) and build tooling
• Good C++ knowledge. In particular: STL interfaces and algorithms, parallelism, thread-safety.
• Competencies in systems and network programming (e.g libcurl)
• UNIX knowledge, in particular familiarity with filesystem concepts.

Optional but a plus:

• Experience with container technologies (such as docker)
• Knowledge of the Go language
• Experience with HEP experiments code, their software lifecycle and build tooling.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• You have a professional background in STEM (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.

Job closing date: 13.01.2025 at 23:59 hrs CET.

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

Working hours: 40 hours per week

Target start date: 01-February-2025

This position involves:

• Work during nights, Sundays and official holidays, when required by the needs of the Organization.

Job reference: EP-SFT-2024-189-GRAP

Field of work: Software Engineering and IT

What we offer

• A monthly stipend ranging between 6212 and 6828 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.