WorkVenture gives you an inside look at what it's like to work at UPPER SYSTEMS ENGINEERING Co., Ltd., office & team photos, reviews and more. This is the UPPER SYSTEMS ENGINEERING Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at UPPER SYSTEMS ENGINEERING Co., Ltd..Apply to WireformApply to GuerrillaApply to gydeApply to Thai Edible Oil