Boil the eggs. Place eggs in a single layer in a saucepan, cover with cold water by 1 inch. Bring to a boil, then reduce to a simmer, cover, and cook for 10–12 minutes.
Ice bath. Drain and transfer eggs to a bowl of ice water. Let cool at least 10 minutes.
Peel and halve. Peel under cold running water, then slice each egg in half lengthwise. Pop yolks into a bowl; arrange whites on a platter.
Mix the filling. Mash yolks until smooth. Add jalapeño, bacon, mayonnaise, Dijon, lemon juice, salt, and pepper. Stir until creamy. Taste and adjust.
Fill the whites. Pipe or spoon the filling into each egg white half.
Garnish. Top each with a fresh jalapeño slice and a dusting of paprika.
Chill 30 minutes before serving.