The Turkish Fed lists an American-born '95 of this name at Eskişehirspor, a first-division club. It looks like he's been there for several years. http://www.tff.org/Default.aspx?pageId=526&kisiId=1129090 Still looking for confirmation on the club site; doesn't seem to be listed with the first team, perhaps unsurprisingly given his age. Also haven't been able to find much more about him.
Here's what looks like a match report from earlier this month in which he started: http://www.tff.org/Default.aspx?pageId=29&macId=103826 Not sure which squad this is. But it does seem he's at the club in some fashion. Amusingly, if you put the match report in Google Translate it says the match was between "Carpet Cleaners" and Raith Rovers. Also, the club seems to have an academy web site, but haven't found much there yet. http://www.eskisehirfutbolakademisi.com/
It looks like he's been playing for their U17 Academy team. He also played a lot for their U16 team last year, scoring one goal. The academy teams play in a nationwide league with other Super Lig and D-2 academy sides. The league is divided into a conference like system and you only play the 10 or so teams in your conference. Eskisehir is ranked 3rd in their conference. His progression through the ranks looks pretty consistant, but if Esen has a real future in the Super Lig he would probably already be training with the A2 team (the 1st team's direct feeder). I can't tell if he's training with them yet, but he's definately not playing for them. Esen transfered from Eskişehir Şekerspor (Sugar-sport) a couple years ago. They are an amateur team playing in a provincial league within the Turkish 5th division.
Apparently still in Turkey, with KIRKA BORAKSSPOR. http://www.tff.org/Default.aspx?pageId=526&kisiId=1129090