In a mixing bowl, combine the shrimp and lime juice. Ensure the shrimp is fully submerged in the juice.

Cover the bowl with plastic wrap and refrigerate for about 15 minutes, or until the shrimp turns opaque.

Once the shrimp is ready, drain excess lime juice and add the red onion, tomato, cucumber, jalapeño, and cilantro.

Season with salt and black pepper to taste, mixing well to combine all ingredients.

Serve immediately in small bowls or on tortilla chips. Garnish with additional cilantro if desired.