Add shrimp (thawed, if frozen, and stir until shrimp turn pink and curl up, about 2-3 minutes.
Drain, rinse thoroughly with cold water, (toss some ice cubes in there for good measure) and set aside.
In a large container with a lid, whisk the lemon juice, vinegar and olive oil together.
Add all the other ingredients, then the cooled shrimp, and toss to coat.