TYTomoyuki Yamaguchi
@cannasuma
Experienced supervisor in telecommunications with strong technical support skills.
JapanWhat I'm looking for
I am a seasoned professional with extensive experience in the telecommunications industry, currently serving as a Supervisor at DoCoMo CS Inc. since 2020. My role involves coordinating international roaming tests and managing service launches with roaming partners. I have a proven track record in technical support and team management, ensuring high performance and customer satisfaction.
Before my current position, I held various supervisory roles where I focused on technical support for corporate contracts and managed support desk operations. My career began in procurement and inventory management, where I developed strong organizational skills and a keen understanding of supply chain dynamics. I am passionate about leveraging my skills to drive operational excellence and enhance customer experiences.
Experience
Work history, roles, and key accomplishments
Supervisor
DoCoMo CS Inc.
Jan 2021 - Present (4 years 5 months)
Currently supervising test coordination for international roaming, managing inbound and outbound tests, and arranging service launches with roaming partners.
Supervisor
DoCoMo CS Inc.
Jan 2014 - Jan 2021 (7 years)
Provided technical support for account managers of corporate contracts and coordinated with maintenance vendors.
Supervisor
DoCoMo CS Inc.
Jan 2009 - Jan 2014 (5 years)
Managed support desk operations for corporate contract customers, focusing on KPIs such as call completion ratio and response rates.
Procurement and Inventory Specialist
DoCoMo CS Inc.
Jul 2004 - Jan 2009 (4 years 6 months)
Handled procurement and inventory management of cellular phones, planning supply and demand, and coordinating with relevant departments and foreign vendors.
Video Delivery Service Expert
DoCoMo CS Inc.
Jan 2003 - Jul 2004 (1 year 6 months)
Provided technical support for video delivery services via cellular phones, assisting the sales department.
Operator
DoCoMo CS Inc.
Jan 2001 - Jan 2003 (1 year 11 months)
Delivered technical support for mobile communication services, assisting customers with cellular phone issues.
Liaison Division
The Nihon Kiin
Dec 1990 - Jan 2001 (10 years 1 month)
Managed operations related to professional Go games and maintained a database for professional Go players.
Education
Degrees, certifications, and relevant coursework
Fellow Academy
Literary Translation
2009 - 2010
Participated in a literary translation class, enhancing skills in translating literary works between languages.
Sophia University
Bachelor of English Studies, English Studies
1987 - 1991
Studied English language and literature, focusing on various aspects of English studies including linguistics, literature, and translation.
Tech stack
Software and tools used professionally
Availability
Location
JapanAuthorized to work in
Job categories
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