He served there as a production line lead and in 1978 was promoted to prototype specialist within Atari 's pinball engineering group .
A few months later , Ritchie was part of a group selected to help start Atari 's pinball production facility in Sunnyvale .
Ritchie served there as a production line lead and in 1978 was promoted to prototype specialist within Atari 's pinball engineering group .
A few months later , Ritchie was part of a group selected to help start Atari 's pinball production facility in Sunnyvale .