Software Developer - Beam Optics (BE-ABP-LNO-2026-132-GRAP)

Join the Linear and Non-Linear Optics (LNO) Section within CERN's Accelerator and Beam Physics (ABP) Group and help shape the future of the High-Luminosity Large Hadron Collider (HL-LHC). As part of the Optics Measurement and Correction (OMC) team, you will develop advanced software and analysis tools that enable precise beam-optics measurements and corrections, as well as improve commissioning procedures. Your work will play a key role in ensuring the safe, reliable, and high-performance operation of the HL-LHC, contributing directly to the successful delivery of its novel physics programme.

- Maintain and extend the core OMC framework and toolset used during LHC commissioning and operation. - Explore software solutions to improve the efficiency and capability of optics measurement and corrections in the LHC. - Update accelerator model creation and correction algorithms to utilise new simulation tools. - Explore the viability of automation for key measurement and analysis workflows, implementing solutions where possible. - Develop new GUIs and analysis tools to be used in the CERN Control Centre during optics commissioning. - Participate in, and contribute to the analysis of, optics measurements in the CERN accelerators.

- Background in programming and software design, with experience in Python. - Familiarity with version control systems and collaborative workflows (Github). - Experience of GUI development. - Knowledge of particle accelerator physics and operation would be an advantage.

- Software development. in Python. - GUI development - Ability to test, diagnose and optimise existing software. - Structured approach towards work, good prioritisation skills to deliver results on required time-lines. - Ability and willingness to share knowledge and participate in knowledge transfer activities. - Strong teamwork and communication skills. - Interest in developing and maintaining software solutions for applied physics, particularly the field of accelerator physics. - Spoken and written English or French, with a commitment to learn the other language. Eligibility criteria: - You are a national of a CERN Member or Associate Member State . - You have a professional background in Physics, Software Engineering (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.