Schneider had one year left on his contract prior to the new deal, according to Ian Rapoport of NFL Network.
"For the last decade, John and head coach Pete Carroll have formed a tremendous partnership and the Seahawks have established a successful, unique, and truly winning culture respected throughout sports," Seahawks chair Jody Allen said in a statement Tuesday. "I know we are all excited to see that continue."
Schneider has spearheaded football operations in Seattle for the last 11 seasons, and has built nine playoff teams - including one Super Bowl champion - over that time.
While his more recent draft results haven't been as stellar, Schneider earned a reputation for being an excellent talent evaluator early in his Seahawks tenure after selecting stars such as Russell Wilson, Bobby Wagner, Richard Sherman, Earl Thomas, and Kam Chancellor.
The Seahawks previously signed Carroll through the 2025 season, meaning their top decision-makers are now both locked up long term.