Jump to grab the handhold on the wall and traverse to the right. Jump to grab the handhold of the pillar...

... and traverse around the corner. Climb up to grab the small handholds, then right and down to grab the handhold below.

Shimmy around the two corners...

... and pull onto the narrow ledge. Perform the Chimney Jump to grab the ledge above. Traverse to the right and pull up on the ledge with the mechanism.