John Leonardo: Email & Phone Number

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Systems Engineer II at Siemens|Union City, California, United States

Position:

Systems Engineer II at Siemens

Location:

Union City, California, United States

View John Leonardo's Email

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Last updated: 2026-07-31

Updated: 2026-07-31

Found email addresses for John Leonardo:

Business emails:

j***********o@siemens.com

Personal emails:

l***@yahoo.com,

l***@appliedmaterials.com,

l***@siemens.com,

j***@gmail.com

Found phones for John Leonardo:

+1-323-***-**29,

+1-205-***-**79

A different John Leonardo?

Work Experience 15 years

Systems Engineer II at Siemens

Mar 2018 - Current

Systems Engineer I at Siemens

Mar 2015 - Mar 2018

Graphic Designer at Siemens

Jan 2013 - Mar 2015

Facilities Generalist at Applied Materials

Feb 2012 - Jun 2012

Structural Engineering Intern at M.D. Ireland Engineering, Inc.

Feb 2011 - Apr 2011

Their professional focus is Apogee, AutoCAD, and Bluebeam Revu across 3 core areas.

Education

Bachelor of Science - BS at San Jose State University

Frequently Asked Questions

What is John Leonardo's email address?

SignalHire found verified email addresses for John Leonardo, both business and personal. Their business email is j***********o@siemens.com, and personal emails include l***@yahoo.com, l***@appliedmaterials.com, and l***@siemens.com.

What is John Leonardo's phone number?

SignalHire found multiple verified phone numbers for John Leonardo: +1-323-***-**29, and +1-205-***-**79.

How do I contact John Leonardo at Siemens?

You can reach John Leonardo 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 Leonardo's professional background?

John Leonardo has 15 years of professional experience. They have held roles including Systems Engineer I, Graphic Designer, and Facilities Generalist at companies such as Siemens, Siemens, and Applied Materials. Their education includes Bachelor of Science - BS from San Jose State University.

Is John Leonardo's contact information up to date?

Yes. John Leonardo's SignalHire profile was last updated on 31 July 2026, reflecting their current position as Systems Engineer II at Siemens in Munich, Germany.

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