Required a guy who are expert in Java

Want the guy who are expert in Java with the data structures, algorithms and OOP concepts as mentioned below,

Array
Linked List
Tree (Tree, Binary Tree, Binary Search Tree, Red-Black Tree, etc.)
Heap
Hash Table
Stack
Queue
Tree
Graph (both directed and undirected)
Algorithms


Sorting: Bubble Sort; Merge Sort; Quick Sort; Radix/Bucket Sort
Traversals (On multiple data structures): Depth First Search; Breadth First Search