Complex sentence: He also worked at the Society of Lithuanian Writers, for some years was a member of its board, participated in the edition of "Literatūros naujienos" (The News of Literature) and worked as a journalist.
Split into simpler sentences: He also worked at the Society of Lithuanian Writers; for some years was a member of its board. He was a contributor to "Literatūros naujienos" (The News of Literature) and worked as a journalist.