Mark Stepler: Email & Phone Number

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Technical Project Manager at Leidos|Jefferson, Maryland, United States

Position:

Technical Project Manager at Leidos

Location:

Jefferson, Maryland, United States

View Mark Stepler's Email

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Last updated: 2026-05-04

Updated: 2026-05-04

Found email addresses for Mark Stepler:

Business emails:

**@leidos.com

Personal emails:

m***@hotmail.com,

s***@lockheedmartin.com,

s***@aol.com,

s***@gmail.com

Found phones for Mark Stepler:

+1-323-***-**22,

+1-323-***-**95

A different Mark Stepler?

Work Experience 40 years

Technical Project Manager at Leidos

Nov 2021 - Current

Senior Systems Engineer for SSA at Leidos

Aug 2021 - Nov 2021

Solution Train Engineer/Chief Engineer at Leidos

Sep 2014 - Aug 2021

Chief Engineer at Lockheed Martin

Jan 2014 - Sep 2014

Chief Engineer at Lockheed Martin

Mar 2011 - Dec 2013

Office of Chief Engineer at Lockheed Martin

Dec 2007 - Mar 2011

Requirements Team Lead at Lockheed Martin

Feb 2003 - Dec 2007

System Engineer at Lockheed Martin

Apr 2001 - Mar 2003

Lead System Engineer at Lockheed Martin

Apr 2000 - Mar 2001

System Engineer at Lockheed Martin

Apr 1997 - Mar 2000

System Engineer at IBM/Loral/Lockheed Martin

Jun 1986 - Apr 1997

Mark Stepler started working in 1986, then the employee has changed 2 companies and 7 jobs. On average, Mark Stepler works for one company for 3 years 8 months.

Their professional focus is Agile Methodologies, Business Process, and Business Process Improvement across 3 core areas.

Education

Bachelor of Science - BS at Penn State University

Frequently Asked Questions

What is Mark Stepler's email address?

SignalHire found verified email addresses for Mark Stepler, both business and personal. Their business email is **@leidos.com, and personal emails include m***@hotmail.com, s***@lockheedmartin.com, and s***@aol.com.

What is Mark Stepler's phone number?

SignalHire found multiple verified phone numbers for Mark Stepler: +1-323-***-**22, and +1-323-***-**95.

How do I contact Mark Stepler at Leidos?

You can reach Mark Stepler 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 Stepler's professional background?

Mark Stepler has 40 years of professional experience. They have held roles including Senior Systems Engineer for SSA, Solution Train Engineer/Chief Engineer, and Chief Engineer at companies such as Leidos, Leidos, and Lockheed Martin. Their education includes Bachelor of Science - BS from Penn State University.

Is Mark Stepler's contact information up to date?

Yes. Mark Stepler's SignalHire profile was last updated on 4 May 2026, reflecting their current position as Technical Project Manager at Leidos in Reston, Virginia, United States.

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