About usUCL is one of the world''s top universities based in the heart of London. It is a modern, outward-looking institution. UCL''s staff and former students have included 32 Nobel prize-winners. It is a truly international community: more than one-third of our student body - more than 50,000 strong - come from 150 countries and nearly one-third of staff are from outside the UK.

The UCL High Energy Physics (HEP) Group is one of the largest groups in the country (-100 members, including around 20 academics and 40 PhD students), with a programme covering a broad range of the HEP field, including the exploration of the energy frontier (ATLAS), Neutrinos, Dark Matter, flavour physics and phenomenology, as well as Accelerator RandD and applications such as Proton Beam Therapy. Our ATLAS team has key involvements in the exploration of electroweak symmetry breaking, including leadership in the search for Higgs boson pair production in the HH->4b final state, as well as in a multitude of searches for physics beyond the Standard Model (BSM), and in key Standard Model measurements and their interpretation in the context of BSM theories. UCL ATLAS has been at the heart of pioneering work in developing cutting-edge Machine Learning (ML) algorithms for tracking and flavour tagging, as well as for ultrafast applications in the Global Hardware Trigger of ATLAS for HL-LHC. We also have a leading role in UCL''s Centre for Data Intensive Science and Industry (and the corresponding PhD training programme), a unique interdisciplinary platform for developing and applying novel ML techniques within academia and in industry.

About the roleWe are looking for an outstanding particle physicist to work on the ATLAS experiment at the Large Hadron Collider. The successful candidate will be expected to take a leading role in the Higgs pair production programme of ATLAS. In terms of technical responsibilities, the post holder will have the opportunity to make key contributions to the ATLAS Run-3 Trigger strategy and operations, particularly in terms of porting and optimizing the latest ATLAS offline b-tagging algorithms in the b-jet trigger signature, calibrating the b-jet trigger, and optimizing tracking in the Trigger, with focus on the b-jet and tau trigger signatures. After the end of Run-3, the focus will shift to preparations for Run-4.

Funding for this post is available up to 30 September 2027 in the first instance.

About youThe successful candidate will have (or be about to submit) a PhD in particle physics, and a strong record of originality in research, demonstrated by a good publication record, commensurate with the applicant''s career stage. They will have excellent written and verbal communication skills, and will have shown evidence of future leadership potential. Desirable attributes include experience in the ATLAS Trigger and in developing cutting-edge machine learning models for applications in experimental HEP and beyond.

What we offerAs well as the exciting opportunities this role presents, we also offer some great benefits some of which are below:

41 Days holiday (27 days annual leave 8 bank holiday and 6 closure days)

Additional 5 days'' annual leave purchase scheme

Defined benefit career average revalued earnings pension scheme (CARE)

Cycle to work scheme and season ticket loan

Immigration loan Relocation scheme for certain posts

On-Site nursery

On-site gym

Enhanced maternity, paternity and adoption pay

Employee assistance programme: Staff Support Service

Discounted medical insurance

Our commitment to Equality, Diversity and Inclusion: As London''s Global University, we know diversity fosters creativity and innovation, and we want our community to represent the diversity of the world''s talent. We are committed to equality of opportunity, to being fair and inclusive, and to being a place where we all belong. We therefore particularly encourage applications from candidates who are likely to be underrepresented in UCL''s workforce. These include people from Black, Asian and ethnic minority backgrounds; disabled people; LGBTQI+ people; and for our Grade 9 and 10 roles, women. Our department holds an Athena SWAN Silver award, in recognition of our long-term commitment and ''beacon'' status in advancing gender equality. You can read more about our commitment to Equality, Diversity and Inclusion here: the department maintains ongoing work in this area.

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