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Crystalline two-dimensional (2D) superconductors with low carrier density arean exciting new class of materials in which superconductivity coexists withstrong interactions, the effects of complex topology are not obscured bydisorder, and electronic properties can be strongly tuned by electrostaticgating. Very recently, two such materials, 'magic-angle' twisted bilayergraphene and monolayer $T_d$-WTe$_2$, have been reported to showsuperconductivity at temperatures near 1 K. Here we report superconductivity insemimetallic monolayer $T_d$-MoTe$_2$. The critical temperature $T_\textrm{c}$reaches 8 K, a sixty-fold enhancement as compared to the bulk. This anomalousincrease in $T_\textrm{c}$ is only observed in monolayers, and may beindicative of electronically mediated pairing. Reflecting the low carrierdensity, the critical temperature, magnetic field, and current density are alltunable by an applied gate voltage, revealing a superconducting dome thatextends across both hole and electron pockets. The temperature dependence ofthe in-plane upper critical field is distinct from that of $2H$ transitionmetal dichalcogenides (TMDs), consistent with a tilted spin texture aspredicted by \textit{ab initio} theory.

Enhanced Superconductivity in Monolayer $T_d$-MoTe$_2$ with Tilted Ising Spin Texture