WorkVenture gives you an inside look at what it's like to work at SONA TECH ENGINEERING CO., LTD., office & team photos, reviews and more. This is the SONA TECH ENGINEERING CO., LTD. Company Page. All content is posted anonymously by employees currently or previously working at SONA TECH ENGINEERING CO., LTD..Apply to Mahidol UniversityApply to Be DigitalApply to HitachiApply to WorkVenture Technologies