Mark: Email & Phone Number

Opt-Out

System Administrator at Leidos|San Antonio, Texas, United States

Position:

System Administrator at Leidos

Location:

San Antonio, Texas, United States

View Mark's Email

Up to 10 free lookups. No credit card required.

Last updated: 2026-07-28

Updated: 2026-07-28

Found email addresses for Mark:

Business emails:

m*****n@harris.com,

m*********n@harris.com

Personal emails:

m*****h@yahoo.com,

m*****h@cox.net

Found phones for Mark:

+1-205-***-**52,

+1-480-***-**61,

+1-520-***-**81

A different Mark?

Work Experience 25 years

System Administrator at Leidos

Aug 2024 - Current

System Administrator at Harris Corporation

Sep 2015 - Sep 2016

System Administrator at Accenture

Sep 2014 - Sep 2015

System Admin at SAIC

Jul 2007 - Nov 2009

Computer Technician at U.S. Department of State

Jul 2007 - Nov 2009

Computer Technician at U.S. Department of State

Jul 2007 - Nov 2009

Dose Reconstruction Assistant and Research Assistant (DOD project) at SAIC (Science Applications International Corporation)

Feb 2005 - Jul 2007

Dose Reconstruction Assistant and Research Assistant (DOD project) at SAIC (Science Applications International Corporation)

Feb 2005 - Jul 2007

Administrative Assistant at DOJ

Nov 2004 - Feb 2005

Administrative Assistant at DOJ

Nov 2004 - Feb 2005

Reprographics Digital Specialist at Archer Government Services

Jul 2002 - Nov 2004

Reprographics Digital Specialist at Archer Government Services

Jul 2002 - Nov 2004

Insurance Claims Processor at National Heritage Insurance Company

Jun 2001 - Mar 2002

Insurance Claims Processor at National Heritage Insurance Company

Jun 2001 - Mar 2002

Mark started working in 2001, then the employee has changed 8 companies and 6 jobs. On average, Mark works for one company for 1 year 7 months.

Their professional focus is Active Directory, Barracuda Spam Firewall, and Keyboards across 3 core areas.

Education

George Mason University

Associate degree in Applied Science; BS degree at Austin Community College

Frequently Asked Questions

What is Mark's email address?

SignalHire found verified email addresses for Mark, both business and personal. Their business email is m*****n@harris.com, and personal emails include m*****h@yahoo.com, and m*****h@cox.net.

What is Mark's phone number?

SignalHire found multiple verified phone numbers for Mark: +1-205-***-**52, +1-480-***-**61, and +1-520-***-**81.

How do I contact Mark at Leidos?

You can reach Mark 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 Mark's professional background?

Mark has 25 years of professional experience. They have held roles including System Administrator, System Administrator, and System Admin at companies such as Harris Corporation, Accenture, and SAIC. Their education includes George Mason University, and Associate degree in Applied Science; BS degree from Austin Community College.

Is Mark's contact information up to date?

Yes. Mark's SignalHire profile was last updated on 28 July 2026, reflecting their current position as System Administrator at Leidos in Reston, Virginia, United States.

Mark Namesakes

Name

Company

Position

Mark

Treeminer, Inc.

CEO

Get contacts

Mark

U.S. SECURITY SUPPLY, INC.

Account Manager

Get contacts

Mark

BloodnFire Ministries

Director

Get contacts

See more profiles

Similar profiles

Name

Company

Position

Madhuri Narandhas

HYBA INTERNATIONAL

System Administrator

Get contacts

Josh Morgan

Saturn Petcare

System Administrator

Get contacts

Ola Mansour

NASPS

System Administrator

Get contacts

Horas Danushka

Millennium IT ESP

System Administrator

Get contacts

jean kabahinda

Nssf-Uganda

System Administrator

Get contacts

Mohammed Alsuhaibani

channels by stc

System Administrator

Get contacts

See more profiles

Other employees at Leidos

Name

Company

Position

Ryan

Leidos

Finance Programmer/Database Developer (Analyst)

Get contacts

John Alred

Leidos

Senior Intelligence Analyst

Get contacts

Mark Siao Eng Khong

Leidos

Program Manager

Get contacts

Joshua Pocus

Leidos

Contractor Special Security Officer (CSSO)

Get contacts

Latha Muthuraj

Leidos

Systems Analyst Test engineer

Get contacts

Zachary Snider

Leidos

Senior Network Administrator

Get contacts

Jenn

Leidos

Total Rewards Strategic Partner

Get contacts

Trinh Nguyen

Leidos

Business Analyst

Get contacts

Melchior du Lac

Leidos

Bioinformatics Developer

Get contacts

Tara Kendrick

Leidos

Human Resources Business Partner

Get contacts

See more profiles

Data Privacy

GDPR COMPLIANT

SignalHire complies with the General Data Protection Regulation (GDPR). SignalHire follows GDPR requirements, including but not limited to rights of data subjects to access, correct, or delete their personal information and supports the right to be forgotten.

CCPA COMPLIANT

SignalHire is CCPA-compliant and provides California residents the right to know, access, opt out, and request deletion of their personal data.