Data Analyst for Beam Instrumentation

What you'll do

As an experienced Data Analyst with a solid background in physics, you will join the team responsible for the LHC Longitudinal Density Monitor (commonly known as the BSRL: Beam Synchrotron Radiation Longitudinal monitor) within the Beam Instrumentation Group.

In this role, you will lead the work on the online and offline data processing pipelines, which are fully implemented in Python. The analysis results from this instrument are mission-critical, directly impacting the calibration of the LHC experiments, facilitating the troubleshooting of operational issues, and enabling detailed beam physics analysis.

Additionally, you will play an important role in R&D and optimisation, conducting advanced studies to shape the upcoming upgrades of the BSRL instrument.

Your responsibilities

Lead the redesign and optimisation of the current online and offline Python data analysis software for the BSRL instrument to ensure scalability, performance and reproducibility.
Develop specialised offline analysis routines using BSRL data, cross-correlating with other beam instrumentation where necessary, to meet the requirements of stakeholders.
Extend the online and offline diagnostics tools, architecting automated notification systems to detect early signs of instrument degradation, anomalies, or malfunctions.
Design and implement the specific software tools, calibration routines, and data pipelines required for the rapid commissioning of the renovated system after the Long Shutdown 3 (LS3).
Contribute to the validation and performance verification of the associated upgraded hardware planned for deployment during LS3.
Evaluate and benchmark different upgrade scenarios for LS3 by combining advanced data analysis of historical run data with physics-based simulation techniques.

Still here? Let's make a quick check about

Your profile

Proven background in the advanced analysis of complex experimental data, preferably from physics or large-scale scientific installations.
Extensive experience in software development with a strong emphasis on clean, maintainable code.
Basic experience in Monte Carlo-based physics simulation techniques.
Basic experience with laboratory work.
Your studies focused on Applied Physics, Data Analytics.

Your skills

In-depth knowledge of advanced statistical methods, data modelling, and data analysis techniques applied to scientific datasets.
Proven proficiency in Python, including familiarity with the standard scientific stack (such as NumPy, Pandas, SciPy, etc) for high-performance processing.
Knowledge of version control systems (Git/Gilab) and continuous integration and deployment (CI/CD).
Basic knowledge of photon counting techniques would be advantage.
Spoken and written English, with a commitment to learn French.

Ideal start date: 01/12/2026

Contract duration (in months): 24

Job flexibility: Hybrid

Employment conditions

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

Global Benefits at CERN

A monthly net stipend between 6372-7004 Swiss Francs per month depending on your degree.
30 days of paid leave per year plus 2 weeks annual closure.
Coverage by CERN’s comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
Family, child and infant monthly allowances depending on your individual circumstances.
A relocation package (installation grant and travel expenses) depending on your individual circumstances.
Possibility to extend your contract up to 36 months.
On-the-job and formal training including language classes.

Let's get you ready

Be sure to meet the eligibility criteria

You are a national of a CERN Member State or Associate Member State. Currently, we cannot consider applications from Pakistani and Lithuanian nationals for positions with a 2026 start date, as the ceiling defined under Article II.5 of the Associate Membership Agreement has been reached.
By the application deadline, you have a master’s degree with 2 to 6 years of professional experience since graduation or a PhD with a maximum of 3 years of professional experience since graduation. You are not eligible with only a bachelor’s degree.
You have never had a CERN fellow or graduate contract before.
Please pay attention to the additional criteria and requirements for this specific position and mentioned above.

You will need these documents to complete your application

Your CV (English or French)
A copy of your most relevant diploma or a certificate of achievement from your school (if you don't yet have your paper diploma)
Any document you consider relevant to your application

Your CERNDepartment

The SY department oversees the science and technology related to accelerator technical systems, including beam instrumentation, beam transfer, power converters, particles generation and their interaction with matter, and radio frequency systems. It is responsible for the operation, maintenance, and development of new hardware and software for CERN’s accelerator complex.

Overview of CERN

Discover a world where the impossible is made possible!

At CERN, the European Organization for Nuclear Research, we are pushing the frontiers of science and technology. Our groundbreaking work brings together not only physicists but also a diverse range of professionals from engineering, technical, scientific, and administrative fields. Together, we foster an environment where innovation and collaboration thrive.

Every day, we face exciting new challenges and opportunities to contribute to cutting-edge research that shapes our understanding of the universe. We meet these challenges through the diverse perspectives within our teams, ensuring every contribution is valued and driving our shared sense of inclusion and purpose. Diversity is a core value of CERN since its foundation, and it remains central to our mission and continued success.

If you are ready to be part of a dynamic, inclusive community pushing the boundaries of knowledge, CERN is the place where your curiosity and skills can thrive. Be part of our mission to uncover what lies at the heart of the universe! TAKE PART!

Ready To apply?

Be prepared with our resources and tips

All good?

Apply now Allow 15 minutes to complete your online application

Still have a doubt ? Here are the most frequently asked questions

What should I expect during my first week at CERN?

Your onboarding at CERN includes a comprehensive induction programme, which starts with an official welcome session at the beginning of each month. In addition, you will receive important information both before and after your arrival to ensure a smooth transition into your new role. This process is designed to help you get acquainted with CERN’s environment, your team, and the tools and systems you’ll be using.
How big would the team be?

The size of the team you'll be working with at CERN depends on the specific role and department. Some teams are small and highly specialized, while others are larger and more interdisciplinary. During the interview process, you'll have the opportunity to learn more about the team structure for the position you are applying for.
What is the working language at CERN?

The working languages at CERN are English and French. However, it is not always mandatory to speak both languages to work at CERN. We offer language training to help you acquiring the other language.
What support does CERN provide for relocation?

CERN does not offer direct assistance with relocation. However, depending on your role and specific criteria, you may be eligible for certain benefits such as an installation allowance and coverage of travel expenses to join CERN. These benefits are designed to help ease the transition when relocating to the Geneva area. For more information, please consult the “Salary, Benefits and Support“ page.
Do I need a visa to work at CERN?

Whether you need a visa to work at CERN depends on your nationality and the duration of your stay. CERN assists with the necessary visa and work permit processes for its employees and visitors. The specific requirements will be communicated to you during the recruitment process.
What would my salary be?

Salaries at CERN are determined by a structured scale. Salaries are based on your role, qualifications, and experience, and are not subject to negotiation. Specific details will be provided as your application progresses. For more information, please refer to the dedicated page.