John Mark Martinez: Email & Phone Number

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Customer Service Representative at American Express|Metro Manila, Philippines

Position:

Customer Service Representative at American Express

Location:

Metro Manila, Philippines

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Last updated: 2026-06-22

Updated: 2026-06-22

Found email addresses for John Mark Martinez:

Business emails:

**@gmail.com

Personal emails:

k*************3@gmail.com

Found phone for John Mark Martinez:

+63-***-***-4035

A different John Mark Martinez?

Work Experience 13 years

Customer Service Representative at American Express

Nov 2024 - Current

Associate Customer Success Representative at Wells Fargo

Feb 2022 - Feb 2024

Senior Technical Support Specialist at Dexcom

Nov 2019 - Oct 2021

Senior Customer Service Executive at HCLTech

Aug 2017 - Sep 2019

Customer Service Representative at Concentrix

Jul 2015 - Dec 2016

Tier 2 Technical Support Specialist / Subject Matter Expert at Harte Hanks

Oct 2013 - Dec 2014

John Mark Martinez started working in 2013, then the employee has changed 5 companies and 4 jobs. On average, John Mark Martinez works for one company for 1 year 9 months.

Their professional focus is Account Management, Advance Troubleshooting, and Alternative Solutions across 3 core areas.

Education

Bachelor of Science - BS at Nueva Ecija University of Science and Technology

Bachelor of Science in information and Technology at Nueva Ejica University of Science and Technology

Frequently Asked Questions

What is John Mark Martinez's email address?

SignalHire found verified email addresses for John Mark Martinez, both business and personal. Their business email is **@gmail.com, and personal emails include k*************3@gmail.com.

What is John Mark Martinez's phone number?

SignalHire found a verified phone number for John Mark Martinez: +63-***-***-4035.

How do I contact John Mark Martinez at American Express?

You can reach John Mark Martinez 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 John Mark Martinez's professional background?

John Mark Martinez has 13 years of professional experience. They have held roles including Associate Customer Success Representative, Senior Technical Support Specialist, and Senior Customer Service Executive at companies such as Wells Fargo, Dexcom, and HCLTech. Their education includes Bachelor of Science - BS from Nueva Ecija University of Science and Technology, and Bachelor of Science in information and Technology from Nueva Ejica University of Science and Technology.

Is John Mark Martinez's contact information up to date?

Yes. John Mark Martinez's SignalHire profile was last updated on 22 June 2026, reflecting their current position as Customer Service Representative at American Express.

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John Mark Martinez

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