David Yoon: Email & Phone Number

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Chief Strategy Officer (CSO) at Epsilon Telecommunications, a KT company|Singapore

Position:

Chief Strategy Officer (CSO) at Epsilon Telecommunications, a KT company

Location:

Singapore

View David Yoon's Email

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Last updated: 2026-07-21

Updated: 2026-07-21

Found email addresses for David Yoon:

Business emails:

j******n@sta.samsung.com,

*.*@epsilontel.com,

**@epsilontel.com

Personal emails:

j*******n@gmail.com

Found phone for David Yoon:

+65-***-***-4461

A different David Yoon?

Work Experience 31 years

Chief Strategy Officer (CSO) at Epsilon Telecommunications, a KT company

Feb 2025 - Current

Chief Business Officer at Epsilon Telecommunications, a KT company

Feb 2024 - Feb 2025

Director of Business Synergy at Epsilon Telecommunications, a KT company

Feb 2022 - Feb 2024

Director of Global Telecom Business Mangement and Development at KT

Jan 2021 - Feb 2022

Director of Global Media Business Development at KT (030200 KS / KT : NYSE)

Sep 2019 - Dec 2020

Director, Team leader of Global BM planning at KT (030200 KS / KT : NYSE)

Nov 2018 - Aug 2019

Team leader of Immersive Media Business Strategy at KT (030200 KS / KT : NYSE)

May 2018 - Nov 2018

New biz strategy manager, Future Convergence Strategy Office (미래융합사업추진실 미래사업전략담당) at KT (030200 KS / KT : NYSE)

Dec 2014 - Dec 2015

Consultant, Corporate Strategy-New Biz, Economics and Business Research Institute at KT (030200 KS / KT : NYSE)

Jun 2014 - Dec 2014

Full-time MBA at Emory University - Goizueta Business School

Jul 2012 - May 2014

Consultant, Global business development, Project Expert Group at KT (030200 KS / KT : NYSE)

Feb 2011 - Feb 2012

Marketing manager, Global IP/Data business planning & marketing at KT

Jul 2007 - Jan 2011

Asst. Manager, Int`l Submarine Cable Network Planning & Investment., KT HQ at KT

Jan 2003 - Jun 2007

Regional Customer Care Specialist, IT Service Team, South Seoul Regional HQ at KT

Jan 2002 - Dec 2002

Sergeant at ROK Air Force 20th Fighter Wing

Jun 1995 - Dec 1997

David Yoon started working in 1995, then the employee has changed 5 companies and 14 jobs. On average, David Yoon works for one company for 1 year 7 months.

David is proficient in English, Japanese, and Korean. Their professional focus is Automatic Fare Collection(AFC), Business Development, and Business Planning across 3 core areas.

David holds Tourism Interpreter/Guide License(English) 관광통역안내사(영어) certifications.

Education

Master of Business Administration (M.B.A.) at Emory University - Goizueta Business School

경영대학원 고급금융과정 / ABP at 서울대학교 / Seoul National University

Certified to the completion of Full-time ESL program(9-mths) at ELS Language Centers

BS at 한국항공대학교 / Korea Aerospace University

Frequently Asked Questions

What is David Yoon's email address?

SignalHire found verified email addresses for David Yoon, both business and personal. Their business email is j******n@sta.samsung.com, and personal emails include j*******n@gmail.com.

What is David Yoon's phone number?

SignalHire found a verified phone number for David Yoon: +65-***-***-4461.

How do I contact David Yoon at Epsilon Telecommunications, a KT company?

You can reach David Yoon through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is David Yoon's professional background?

David Yoon has 31 years of professional experience. They have held roles including Chief Business Officer, Director of Business Synergy, and Director of Global Telecom Business Mangement and Development at companies such as Epsilon Telecommunications, a KT company, Epsilon Telecommunications, a KT company, and KT. Their education includes Master of Business Administration (M.B.A.) from Emory University - Goizueta Business School, and 경영대학원 고급금융과정 / ABP from 서울대학교 / Seoul National University.

Is David Yoon's contact information up to date?

Yes. David Yoon's SignalHire profile was last updated on 21 July 2026, reflecting their current position as Chief Strategy Officer (CSO) at Epsilon Telecommunications, a KT company in Singapore, Singapore.

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