Heat a large skillet over medium heat for 1 minute. Place the salami in a single layer in the skillet and cook until crisp, turning the salami pieces with a pair of tongs as needed. Remove crisp salami from the skillet and place on a plate to cool.
Place the red onion on a bowl of ice water and let sit for 10 minutes. Drain.
Place the strawberries, cheese, cucumber, watermelon, almonds, basil, drained red onion and crispy salami in a large bowl.
Whisk together the olive oil, vinegar, jam and sea salt. Pour over the salad mixture and toss until coated. Serve.