WorkVenture gives you an inside look at what it's like to work at FIRST TELECOM SYSTEM Co., Ltd., office & team photos, reviews and more. This is the FIRST TELECOM SYSTEM Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at FIRST TELECOM SYSTEM Co., Ltd..Apply to OtisApply to adrenaline hunterApply to Abatek AsiaApply to Baptech Engineering