Applied Physicist for ATLAS Trigger Reconstruction

The position involves developing innovative selections for the ATLAS trigger system to improve event identification in challenging parameter space regions, including rare Standard Model processes and exotic signatures. The candidate will contribute to the trigger menu development for the HL-LHC era as part of the Next Generation Trigger programme.

Responsibilities

• Design new triggering algorithms and strategies, including alternative data flows and ML/AI-based approaches.
• Develop tools to support HL-LHC trigger menu studies.
• Simulate trigger selections and estimate trigger rates using data and HL-LHC Monte Carlo samples.
• Ensure that proposed solutions meet trigger menu constraints on processing resources and rate limits.
• Implement solutions within the central ATLAS trigger software.
• Collaborate closely with ATLAS trigger and TDAQ upgrade experts.

Requirements

• 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.
• Strong background in collider physics.
• Experience with AI/ML and trigger systems.
• Your studies focused on PhD in Physics or other relevant field.
• Strong software skills.
• Excellent communication and presentation skills.
• Experience with, or willingness to supervise, students.
• Spoken and written English, with a commitment to learn French.

Skills

• Collider Physics
• AI/ML Integration
• Trigger Systems
• PhD in Physics
• Software Development
• Scientific Programming
• Data Analysis
• Event Selection Development
• Trigger Menu Development
• Student Supervision
• Technical Presentations
• English Language Proficiency

Languages

English, French