John Jefferson: Email & Phone Number

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New Product Introduction Specialist at Penumbra, Inc.|San Francisco Bay Area, United States

Position:

New Product Introduction Specialist at Penumbra, Inc.

Location:

San Francisco Bay Area, United States

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Last updated: 2026-07-06

Updated: 2026-07-06

Found email addresses for John Jefferson:

Business emails:

j********n@penumbrainc.com

Personal emails:

j***@penumbrainc.com,

j***@aol.com,

j***@gmail.com

Found phones for John Jefferson:

+1-870-***-**23,

+1-480-***-**05,

+1-323-***-**36

A different John Jefferson?

Work Experience 12 years

New Product Introduction Specialist at Penumbra, Inc.

Jan 2023 - Current

Production Team Lead at Penumbra, Inc.

Feb 2021 - Jan 2023

Production Team Member at Penumbra, Inc.

Jun 2018 - Feb 2021

Youth Development Specialist at Boys & Girls Clubs of America

Sep 2014 - Jun 2018

John Jefferson started working in 2014, then the employee has changed 1 company and 3 jobs. On average, John Jefferson works for one company for 3 years.

Their professional focus is Assembly Lines, Assembly Processes, and Controlled Environments across 3 core areas.

Education

Associate of Arts - AA at Chabot College

Frequently Asked Questions

What is John Jefferson's email address?

SignalHire found verified email addresses for John Jefferson, both business and personal. Their business email is j********n@penumbrainc.com, and personal emails include j***@penumbrainc.com, j***@aol.com, and j***@gmail.com.

What is John Jefferson's phone number?

SignalHire found multiple verified phone numbers for John Jefferson: +1-870-***-**23, +1-480-***-**05, and +1-323-***-**36.

How do I contact John Jefferson at Penumbra, Inc.?

You can reach John Jefferson 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 Jefferson's professional background?

John Jefferson has 12 years of professional experience. They have held roles including Production Team Lead, Production Team Member, and Youth Development Specialist at companies such as Penumbra, Inc., Penumbra, Inc., and Boys & Girls Clubs of America. Their education includes Associate of Arts - AA from Chabot College.

Is John Jefferson's contact information up to date?

Yes. John Jefferson's SignalHire profile was last updated on 6 July 2026, reflecting their current position as New Product Introduction Specialist at Penumbra, Inc. in Alameda, CA, United States.

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