Jiǎ

Others included Tōng Líng Tǎ, who had a power that was too slow to use, not worth the fractional decrease in power that came with including her in the network, Shén yù, the strategist, and Jiǎ, the tinker that supplied the C.U.I. with its devices, including the simulations for the drills.

It was those drills and simulations that allowed him to react a precious fraction of a second faster as he responded.  It kept him in sync with the others in the group as he joined half of them in letting his forcefield dissipate, simultaneously reaching out to apply another power.

—Interlude 23


Jia is a simulation architect.

— Wildbow, https://www.reddit.com/r/Parahumans/comments/5iblo6/classifying_canon_tinkers_by_methodology/db7eg12/