- Led development teams organized by subcontract engineers or local engineers in foreign country.- Developed many embedded products which is designed on object oriented, and implemented by C language. The products achieved both of the high portability, easy maintenance and good performance by the design considered good balance of these independently of the development language supporting the object oriented by itself.- Kept the development schedule by the guaranteed quality of the products. Innovated the test first policy and auto tests in order to avoid uncertain factors involved by bad quality for the schedule.- Developed many software products for mobile phone. Have many experiences to resolve problems on devices including knowledge to use tools specialized for devices such as ICE.- Developed many Java J2ME runtime environments through the designing, implementing and quality assurance.- Developed enterprise system through the defining requirement, designing, implementing, release and maintenance. Understood the each processes.