Since 2007, he has been working at the WHO Country Office in Turkey. He's a Turkish medical doctor, specialized in Public Health and has a degree of Professor of Public Health from Higher Education Council of Turkey.

He managed WHO tobacco control activities at country level; assisted national government in strengthening implementation of FCTC and tobacco control legislation, monitoring national action plan, developing policies and programmes funded by Bloomberg lnitiative to Reduce Tobacco Use. Befare joining the WHO, he worked as Director of Tobacco Control Department of Ministry of Health of Turkey between 2002 and 2007. He alsa provided technical assistance to other countries to enhance tobacco control activities in different regions. He worked at the Global Road Safety Program in Turkey that facused on to reduce the number of traffic related injuries and deaths funded by Bloomberg Philanthropies.

Professor Ergüder is currently National Professional Officer far Noncommunicable Diseases and Promoting Health through the Life-Course at the WHO CO in Turkey. He co-ordinates work in the areas of prevention, control and management of non-communicable diseases and faur main behavioural risk factors. He provided technical assistance far development of multisectoral national action plans far prevention and control of NCDs, the case far investment, tobacco control, alcohol control, nutrition, obesity and physical activity and mental health in Turkey. He is coordinating The United Nations lnteragency Task Force (UNIATF) on the Prevention and Control of NCDs at country level.

He conducted many NCDs risk factors surveys like as GATS, GYTS and STEPS ete. as well as studies far health status of Syrian Refuges in Turkey. He has many publications in the area of tobacco control, alcohol control and NCDs. He is currently implementing two projects on hypertension control and reduce salt consumption and elimination of trans fats under RESOLVE initiative of Vital Strategies. And one project on enfarcement of smoke-free funded by Bloomberg Philanthropies.