Nets assistant general manager Bobby Marks announced on Twitter Tuesday that he is no longer working for the organization.

Marks had been a staple in the Nets' basketball department for nearly 20 years, but his contract was up and wasn't renewed.

The Nets declined to comment.

The Marist graduate started with the Nets as a public relations intern in 1995 before becoming a basketball operations assistant under former general manager Willis Reed one year later.

Marks climbed the ranks and was named assistant general manager under then-president Rod Thorn in 2010 and continued to serve in that role under current general manager Billy King.

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"So this is how it ends," Marks wrote on Twitter. "Please don't take this as an obituary but rather a Thank You to the many people I have worked with for the past 20+ years with the Nets."

He proceeded to thank Reed, former Nets coach and executive John Calipari, Thorn, King and Jason Kidd for turning around the franchise when he played for the New Jersey Nets.

Marks, whose areas of strength include salary-cap management, is well-respected around the league and by player agents and isn't expected to be unemployed for long.