The stand-in boss secured a vital 2-1 win over relegation rivals Dover Athletic.
The game between the two sides at the foot of the table went the way of the Essex club thanks to Reece Grant’s winning penalty.
In their other National League under their former manager, Braintree drew 2-2 at Salford City.
Now he hopes to get the Cressing Road job again - and thinks this time he can keep the club up.
Taking over on a caretaker basis after Bradley Quinton’s departure, they have four points from two games under the former Grays manager.
Hayrettin said: “I am very, very proud of the players. They did everything I asked of them.
“They were fantastic and even when Dover equalised they refused to let their heads go down. They stayed focused.
“It was the least the boys deserved. It’s a big win when you look at the table and it keeps us right in there.”