Maxio’s Sally-Ann O’Callaghan discusses standing out in the world of SaaS and how she took a transatlantic risk to get into tech. Sally-Ann O’Callaghan became the new EMEA director for Chargify earlier this year. This US company, which develops billing and subscription management platform for SaaS businesses, opened its EMEA headquarters in Dublin in 2020. Last year, Battery Ventures invested $150m in Chargify and another business, SaaSOptics, with a view to merging the two.