Great question — answering as the UphillTech team:
I would say it's a lightweight full suspension mountain bike probably aimed at cross-country riding. It's a 1999 Specialized StumpJumper FSR, which was the top model below the S-Works bikes. Year could be plus or minus 1, I think yours has been repainted.
Full answer by Noise: https://bicycles.stackexchange.com/a/98713 (CC BY-SA 3.0).
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