Sprinkle the chicken thighs on all sides with salt and pepper.
Heat the olive oil in a deep skillet over medium high heat.
Add the chicken thighs, searing on both sides.
Add the barbeque sauce and beer, lower heat to maintain a simmer. Turn the chicken over periodically. Cook until chicken is cooked through, about 10 minutes.
Remove chicken from pan, shred using two forks, return to sauce, simmer for 5 minutes.
In each of the slider buns add chicken, avocado slices, cilantro and a few pickled jalapenos. Serve immediately.