Duolingo English Test, Global. On the five-year anniversary of his joining Duolingo English Test as a sales development intern, Mark Pavic has been promoted to the role of senior marketing manager. Based out of Pittsburgh in the US, Mark has been in various roles at DET, beginning as an intern then moving through as marketing and engagement co-ordinator, marketing associate, and most recently as marketing manager. Speaking on LinkedIn, Mark said of his new role: “I’m lucky to have seen the growth and positive disruption that the DET’s accomplished in that time: 500 to 5,000 accepting programs, having the largest and most accessible test fee waiver program in industry, and most simply, reaching students everywhere (not as common as you’d expect!)”