I am a fresh PhD graduate looking for a job. Is it a good idea to write directly to professors/group leaders, asking if there are any job openings in their group? If yes, how long/detailed such email should be?
I haven't published any papers during my PhD so I feel that my chances of getting a postdoc position are pretty slim. I would like to start somewhere as a research assistant to gain some experience, make connections with people, etc. I know that quite often RA positions are not advertised because professors just offer them to their own PhD students.