Robert Duff: Email & Phone Number

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Manufacturing Engineer at L3 Technologies|Cincinnati Metropolitan Area, United States

Position:

Manufacturing Engineer at L3 Technologies

Location:

Cincinnati Metropolitan Area, United States

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Last updated: 2026-07-20

Updated: 2026-07-20

Found email addresses for Robert Duff:

Business emails:

r*********f@l3harris.com

Personal emails:

d***@yahoo.com,

r***@danbeard.org,

r***@duke-energy.com,

d***@aol.com

Found phones for Robert Duff:

+1-323-***-**96,

+1-909-***-**93,

+1-520-***-**21

A different Robert Duff?

Work Experience 16 years

Manufacturing Engineer at L3 Technologies

Jan 2025 - Current

Hobby Designer/Machinist/Fabricator at Freelance

Jan 2010 - Current

Product Validation Engineer at Milacron

May 2022 - Aug 2024

Manufacturing Engineering Intern at Productive Carbides Inc

Mar 2020 - Jun 2022

Landscaper at Dan Beard Council, Scouting America

Jun 2021 - Aug 2021

Distribution Design Engineer Intern at Duke Energy Corporation

Jun 2019 - Aug 2019

Electrician at KEP Electric

Jun 2017 - Aug 2019

Summer Camp Counselor at Dan Beard Council, Scouting America

Jun 2014 - Aug 2016

Robert Duff started working in 2010, then the employee has changed 6 companies and 7 jobs. On average, Robert Duff works for one company for 3 years 5 months.

Their professional focus is 3D Printing, CAD/CAM, and CNC Manufacturing across 3 core areas.

Education

Postgraduate Degree at Ohio University

Bachelor of Science in Engineering Technology and Management at Ohio University

High School Diploma at Amelia High School

Frequently Asked Questions

What is Robert Duff's email address?

SignalHire found verified email addresses for Robert Duff, both business and personal. Their business email is r*********f@l3harris.com, and personal emails include d***@yahoo.com, r***@danbeard.org, and r***@duke-energy.com.

What is Robert Duff's phone number?

SignalHire found multiple verified phone numbers for Robert Duff: +1-323-***-**96, +1-909-***-**93, and +1-520-***-**21.

How do I contact Robert Duff at L3 Technologies?

You can reach Robert Duff 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 Robert Duff's professional background?

Robert Duff has 16 years of professional experience. They have held roles including Hobby Designer/Machinist/Fabricator, Product Validation Engineer, and Manufacturing Engineering Intern at companies such as Freelance, Milacron, and Productive Carbides Inc. Their education includes Postgraduate Degree from Ohio University, and Bachelor of Science in Engineering Technology and Management from Ohio University.

Is Robert Duff's contact information up to date?

Yes. Robert Duff's SignalHire profile was last updated on 20 July 2026, reflecting their current position as Manufacturing Engineer at L3 Technologies in New York, NY, United States.

Robert Duff Namesakes

Name

Company

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Robert Duff

University of Waterloo

Project Lead - UW EWB Novel Carbon Capture Prototype Development

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Ryan Duff

Tyler Athletic Fields

Chief Pilot / Program Director

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Robert Duff

Brandeis University

Professor of the Practice of Choral Music

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