Engineers Venkatarao Ganni and Dana Arenius came to the Thomas Jefferson National Accelerator Facility (JLab) after time spent in industry (and in Ganni's case, at the Superconducting Super Collider). They explain how they came to the lab and the challenges of developing the Central Helium Liquefier (CHL), a cutting edge cryogenics device needed for JLab's superconducting radiofrequency accelerator.