John Marcus: Email & Phone Number

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Onsite Engineer at Greystone Technology|La Quinta, California, United States

Position:

Onsite Engineer at Greystone Technology

Location:

La Quinta, California, United States

View John Marcus's Email

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Last updated: 2026-06-25

Updated: 2026-06-25

Found email addresses for John Marcus:

Business emails:

j*****s@greystonetech.com

Personal emails:

j********9@yahoo.com,

j*******1@icloud.com

Found phones for John Marcus:

+1-480-***-**51,

+1-520-***-**79,

+1-323-***-**12,

+1-909-***-**26

A different John Marcus?

Work Experience 4 years

Onsite Engineer at Greystone Technology

Jan 2025 - Current

Help Desk Technician 2 at Michael Kors

Sep 2024 - Jan 2025

Help Desk Support Specialist at The Management Trust

Oct 2023 - Aug 2024

Help Desk Specialist at The Management Trust

Oct 2023 - Aug 2024

Teacher’s Assistant at Abco Technology

Aug 2022 - Jun 2023

Level 1 IT Analyst at Taco Bell

Aug 2022 - Jan 2023

John Marcus started working in 2022, then the employee has changed 4 companies and 5 jobs. On average, John Marcus works for one company for 10 months.

Their professional focus is Cloud Computing, Computer Hardware, and Computer Literacy across 3 core areas.

Education

ABCO School of Technology

Trade School/Certifications at ABCO School of Technology

Le Cordon Bleu College of Culinary Arts-Pasadena

Frequently Asked Questions

What is John Marcus's email address?

SignalHire found verified email addresses for John Marcus, both business and personal. Their business email is j*****s@greystonetech.com, and personal emails include j********9@yahoo.com, and j*******1@icloud.com.

What is John Marcus's phone number?

SignalHire found multiple verified phone numbers for John Marcus: +1-480-***-**51, +1-520-***-**79, and +1-323-***-**12.

How do I contact John Marcus at Greystone Technology?

You can reach John Marcus 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 Marcus's professional background?

John Marcus has 4 years of professional experience. They have held roles including Help Desk Technician 2, Help Desk Support Specialist, and Help Desk Specialist at companies such as Michael Kors, The Management Trust, and The Management Trust. Their education includes ABCO School of Technology, and Trade School/Certifications from ABCO School of Technology.

Is John Marcus's contact information up to date?

Yes. John Marcus's SignalHire profile was last updated on 25 June 2026, reflecting their current position as Onsite Engineer at Greystone Technology in Denver, CO, United States.

John Marcus Namesakes

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John Marcus

Peniel Metropolitan LTD

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John Marcus

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