Silva, 19, played for several clubs in his native Portugal before joining the Gingerbreads' academy system, later signing a two-year contract with the first team in July 2019.
Wisbech Town manager Brett Whaley said: "Rodrigo was recommended to us after really impressing in academy football, and his initial progression into men’s football.
"He’s hugely talented and showed his ability when training with the squad before lockdown. I’m delighted to be able to agree terms with him and really excited about working with him. He ticks all of the boxes that we are looking for in a player."
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