Applied Physicist

Job Posting Organization:
CERN, the European Organisation for Nuclear Research, is a leading scientific research organization established to probe the fundamental structure of the universe. It employs physicists and engineers who utilize the world's largest and most complex scientific instruments to study the basic constituents of matter. CERN's mission is to advance knowledge and understanding of the universe through groundbreaking research and innovation. The organization has a diverse workforce and operates in multiple countries, fostering an inclusive environment that values diversity as a core principle since its inception.

Job Overview:
As an Applied Physicist at CERN, you will play a crucial role in the design, integration, and commissioning of front-end electronics systems for the LHCb Upgrade II project. This position requires a blend of hands-on technical development and collaboration with various teams, including CERN Electronics and Detectors Technology support groups. You will be responsible for ensuring that the demanding timing requirements of the project are met, which involves harmonizing timing approaches across different subdetectors such as VELO, RICH, and CALO. Your work will encompass system-level integration, calibration, and research and development of modules, making it essential to have a strong foundation in both physics and electronics.

Duties and Responsibilities:
The duties and responsibilities of the Applied Physicist include supporting the system-level integration and commissioning of the electronics chain, collaborating with subdetector experts and the LHCb Online team. You will develop control software and calibration procedures for detectors within the LHCb electronic control system. Additionally, you will provide project-based support for PCB development, mechanical and cooling integration, and electronics infrastructure, including low voltage (LV) and high voltage (HV) systems. Coordination across LHCb subdetectors to harmonize fast timing implementation at the front-end level is also a key responsibility, requiring close liaison with CERN Electronics support experts and the LHCb electronics coordinator. Furthermore, you will contribute to research and development efforts focused on module integration and cooling solutions.

Required Qualifications:
Candidates must possess a PhD or equivalent relevant experience in Physics, Electronics, or a related field. A strong background in commissioning and operation of detectors for large particle physics experiments is essential. Familiarity with the entire signal treatment chain from front-end electronics to readout and control electronics is required, including high-speed signal processing and transmission. Experience with HL-LHC experiments and common electronic components such as lpGBT, VTRx+, and bPOLs is advantageous. Additionally, candidates should have experience with fast timing detectors, precision timing systems, PCB design, and module prototyping, as well as developing and testing detector modules, including mechanical integration of electronics and cooling systems.

Educational Background:
A PhD or equivalent in Physics, Electronics, or a closely related field is required for this position. This educational background ensures that candidates have the necessary theoretical knowledge and practical skills to contribute effectively to the complex projects at CERN.

Experience:
The position requires significant experience in commissioning and operating detectors within large particle physics experiments. Candidates should have a comprehensive understanding of the signal treatment chain, including front-end electronics, readout, and control electronics. Experience with fast timing detectors and precision timing systems is also essential, along with a solid background in PCB design and module prototyping. Familiarity with the HL-LHC experiments and their common electronic components will be considered a plus.

Languages:
Fluency in spoken and written English is mandatory, as it is the working language at CERN. Additionally, candidates should demonstrate a commitment to learning French, which is beneficial for communication within the organization and the local community.

Additional Notes:
This position is offered as a limited duration contract for 5 years, with the possibility of extension up to 8 years and eligibility for an indefinite contract tenure. The working hours are set at 40 hours per week, and the job offers hybrid flexibility. The role may involve work in radiation areas, interventions in underground installations, and shift work, including nights, Sundays, and official holidays as required by the organization's needs. The job grade is classified as 6-7, and the reference for this position is EP-LBD-2026-49-LD. CERN offers a competitive, tax-free salary that increases with relevant experience, along with 30 days of paid leave per year, comprehensive health insurance coverage, family allowances, and a relocation package depending on individual circumstances.