Complex sentence: In 1961 Rieker was hired by the German multinational engineering and electronics company Bosch For two years he was given the position as advertising assistant before he was promoted to the electrical vehicle department's assistant advertising director.
Split into simpler sentences: In 1961 Rieker started working at the German multinational engineering and electronics company Bosch as advertising assistant. After two years he was promoted to the electrical vehicle department's assistant advertising director.