Sprinkle salt onto a plate. Moisten the rim of a glass with lime wedge. Press the moistened rim into the salt. Fill the glass with ice.

Fill a cocktail shaker with jalapeno slices and strawberries, reserving 1 slice of strawberry for garnish. Use a muddler to crush the jalapeno and strawberries to release their juices. Add tequila, triple sec, lime juice and simple syrup to the shaker and add 1 cup of ice. Seal and shake vigorously until outside is frosted, 10 to 15 seconds.