Ceallach is currently RD&E Group Leader at ChampionX. Ceallach started her career in 2009 as Laboratory Technician for Clariant in Aberdeen before joining ChampionX as a Technical Support Engineer in 2010, supporting offshore chemical applications. In 2012, Ceallach transferred to Singapore joining the RD&E function as Snr Chemist, supporting the Asia Pacific region for Flow Assurance applications. In 2016, Ceallach moved to Houston still working in Flow Assurance before becoming a Group Leader in Asset Integrity in 2022. Ceallach holds a BSc in Forensic Science from The Robert Gordon University in Aberdeen.