Developing the mechanics of the puzzle game

We need a mobile game developer. In Unreal Engine 4, based on blueprints, develop the mechanics of the puzzle game. Game mechanics: segment selection, segment movement on the playing field, grouping, signaling the coupling of segments, fixing segments in the case of correct position, the end of the game at the end of the assembly, the system of accruing points. Game menu with a choice of levels and puzzles (mark already collected puzzles).
Make comments in blueprints and assets. Advise when there are questions.
Gaming platform: mobile phones
Price: contractual