Clean pork shoulder and chop into manageable chunks so that it will cook faster in the instant pot
Pat pork pieces dry with a piece of paper towel then mix spices together to create a blend then generously season the pork well drizzling with olive oil so that the seasoning sticks
Set instant pot to saute and allow it to heat up, once hot drizzle olive oil and sear pork pieces until browned on each side, about 2 minutes
Once the pork is brown all over, add chicken broth, onion, chipotle pepper, garlic, sofrito, juice from an orange, lime juice, mojo marinade, and bay leaf to the instant pot. Give everything a good stir being sure to scrape the brown bits from the bottom of the instant pot and cover with the lid, set to manual high pressure for 30 minutes
Allow the pressure cooker to naturally release and then remove pork pieces and shred with two forks
Set the instant pot back to saute and allow all the juices to simmer for 10 minutes and intensify in flavor
Pour all the juices over the shredded carnitas (about a cup) on a sheet pan lined with foil and broil on high for a couple of minutes until a few of the top pieces become crispy