In my answer to Is it permissible to wear a turban-style hijab with visible earrings?, I referenced an article by German Islam Scholar Lamya Kaddor who makes the claim...
Does the Koran really demand that women wear headscarves? Or is it mainly older men who claim they can decide how women should dress – with no theological foundation whatsoever? For the Islam scholar Lamya Kaddor, there is no question about it: the headscarf is obsolete -- Lamya Kaddor, Why I as a Muslim Woman Don't Wear a Headscarf, qantara.de, 2011
She doesn't question that hijab is obligatory, just that the headscarf is part of hijab. Nevertheless, it's clearly an unorthodox position in Islam.
In response to citing this article, her scholarly credentials were strongly questioned by two users. However, neither comment supported their claim with evidence. Hence the question...
Question: Is Lamya Kaddor an Islamic scholar?
Her Wikipedia page indicates she has experience in teaching Islam:
Lamya Kaddor is... a writer and founder and chairwoman of the Liberal-Islamic Association (LIB e.V.). She is known for introducing Islamic education in German in public schools in Germany. Together with Rabeya Müller she has published the first German Qur'an translation for children and adults: "Der Koran für Kinder und Erwachsene". Furthermore she is initiator and editor of the first German school book for Islamic education called "Saphir". Especially since 2014 she works on the subject of Salafism and Islamism. Five of her former students volunteered for jihad in Syria, which Lamya Kaddor perceived as a personal defeat. ... She taught Islamic education in a secondary school in Dinslaken in North Rhine-Westphalia. -- Lamya Kaddor, Wikipedia
Some news articles about her refrain from using the word "scholar":
Lamya Kaddor, a German-Syrian religious studies teacher and expert on Islam... -- After Students Went To Wage Jihad, Teacher Highlights Youth Radicalization, 2015
...she speaks German, Arabic and Turkish. She also trains teachers in the teaching of Islamic religious studies at the University of Münster, the first program of its kind in Germany. -- Beate Lakotta, 'Anyone Who Wants Integration Has to Provide Islam Instruction'