Archtis expands its executive management team to scale business growth and customer base New global COO and US president Kurt Mueffelmann brings over 25 years of technology leadership to the company and will define and oversee archTIS's overall business and growth strategy. Mroz and Rowland are also former Nucleus Cyber executives and are set to help fuel the company’s growth. archTIS Ltd (ASX:AR9) has announced three key executive appointments with a new global chief operating officer and US president in Kurt Mueffelmann, a new chief marketing officer in Irena Mroz and a new chief engineer in Leigh Rowland. Chief executive officer Daniel Lai said: “This is an exciting time for archTIS, with a new acquisition, product capabilities and integrations.