I use the ATLAS Experiment at the Large Hadron Collider to search for new fundamental particles and forces. I’m particularly interested in the particle physics of the 85% of matter in the universe that cannot be understood with known particles and forces, known as dark matter. I record proton-proton collision data with novel data-taking techniques and trigger upgrades that increase the sensitivity of ATLAS to rare processes, such as the production of weakly-interacting massive particles. There are many synergies between my work on LHC searches and the work done in CCAPP. From 2014--2018, I led the LHC Physics Centre's working group for dark-matter activities at the LHC and its predecessor. I am also leading the development of track trigger electronics for ATLAS and my group contributes to the operation of the ATLAS trigger.