Looking for job !

I am looking for job and I have paperless exp working for a travel startup based in Delhi and I also have an experience working in lead based paid internship program as they didn't provide any experience letter I don't have any exp letter so can I mention in my resume ?? and how is unacademy and planetsparks company is it good working and how is the working culture do mention and if you know any vacancy in any good company do let me know !