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Jeff Terwilliger Email & Phone Number

Senior Design Engineer at OPTO International, Inc.
Location: Bloomingdale, Illinois, United States 8 work roles 1 school
1 work email found @optosystem.com 1 phone found area 224 LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 1 phone

Work email j****@optosystem.com
Direct phone (224) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
OPTO International, Inc.
Role
Senior Design Engineer
Location
Bloomingdale, Illinois, United States
Company size
113 employees

Who is Jeff Terwilliger? Overview

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Quick answer

Jeff Terwilliger is listed as Senior Design Engineer at OPTO International, Inc., a with 113 employees, based in Bloomingdale, Illinois, United States. AeroLeads shows a work email signal at optosystem.com, phone signal with area code 224, and a matched LinkedIn profile for Jeff Terwilliger.

Jeff Terwilliger previously worked as Product Design Engineer at Good Sportsman Marketing, L.L.C. and Design Engineer at Freelance, Self-Employed. Jeff Terwilliger holds Associate, Industrial Design from The Art Institutes.

Company email context

Email format at OPTO International, Inc.

This section adds company-level context without repeating Jeff Terwilliger's masked contact details.

{first_initial}{last}@optosystem.com
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AeroLeads found 1 current-domain work email signal for Jeff Terwilliger. Compare company email patterns before reaching out.

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Profile bio

About Jeff Terwilliger

Jeff Terwilliger is a Senior Design Engineer at OPTO International, Inc.. He possess expertise in solidworks, product design, manufacturing, injection molding, engineering and 4 more skills.

Listed skills include Solidworks, Product Design, Manufacturing, Injection Molding, and 5 others.

Current workplace

Jeff Terwilliger's current company

Company context helps verify the profile and gives searchers a useful next step.

OPTO International, Inc.
Opto International, Inc.
Senior Design Engineer
Bloomingdale, IL, US
Website
optosystem.com
Employees
113
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Company profile
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8 roles

Jeff Terwilliger work experience

A career timeline built from the work history available for this profile.

Design Engineer

Freelance, Self-Employed

Doing a variety of design and engineer work including POP displays, small scale models, and various types of fixtures

Nov 2019 - Dec 2020

Design Engineer

Lg&P Inc

Engineered POP displays in Solidworks, and created drawings for prototypes and production

Nov 2017 - Oct 2018

Design Engineer

Vox Supply Partners

Radlett, Hertfordshire, Gb

Engineered POP displays in Solidworks and created drawings for prototypes and production

Jul 2014 - Oct 2017

Prototype Engineer

Idl Merchandising Solutions

Proved out and value engineered first round (prototype) drawings of display pieces, working with wood, metal, plastic, cardboard, and graphics.

Sep 2002 - Jan 2007
Team & coworkers

Colleagues at OPTO International, Inc.

Other employees you can reach at optosystem.com. View company contacts for 113 employees →

VS Vincent Spitzzeri Vincent Spitzzeri Colleague at Opto International, Inc.Greater Chicago Area, United States View → CH Corey Hudson Corey Hudson Colleague at Opto International, Inc.Naperville, Illinois, United States View → CD Carolyn Drolen Carolyn Drolen Colleague at Opto International, Inc.Itasca, Illinois, United States View → JG Juan Gonzalez Juan Gonzalez Colleague at Opto International, Inc.United States View → MV Manuel Vega Manuel Vega Colleague at Opto International, Inc.Des Plaines, Illinois, United States View → SK Steven Karels Steven Karels Colleague at Opto International, Inc.Batavia, Illinois, United States View → AR Antonio Ramos Jr Antonio Ramos Jr Colleague at Opto International, Inc.Cicero, Illinois, United States View → TR Thomas Ruiz Thomas Ruiz Colleague at Opto International, Inc.Greater Chicago Area, United States View → MC Michael Cassidy Michael Cassidy Colleague at Opto International, Inc.Highland Park, Illinois, United States View → TT Tatiana T. Tatiana T. Colleague at Opto International, Inc.Greater Chicago Area, United States View →
1 education record

Jeff Terwilliger education

  • The Art Institutes
    The Art Institutes
    Industrial Design
FAQ

Frequently asked questions about Jeff Terwilliger

Quick answers generated from the profile data available on this page.

What company does Jeff Terwilliger work for?

Jeff Terwilliger works for OPTO International, Inc..

What is Jeff Terwilliger's role at OPTO International, Inc.?

Jeff Terwilliger is listed as Senior Design Engineer at OPTO International, Inc..

What is Jeff Terwilliger's email address?

AeroLeads has found 1 work email signal at @optosystem.com for Jeff Terwilliger at OPTO International, Inc..

What is Jeff Terwilliger's phone number?

AeroLeads has found 1 phone signal(s) with area code 224 for Jeff Terwilliger at OPTO International, Inc..

Where is Jeff Terwilliger based?

Jeff Terwilliger is based in Bloomingdale, Illinois, United States while working with OPTO International, Inc..

What companies has Jeff Terwilliger worked for?

Jeff Terwilliger has worked for Opto International, Inc., Good Sportsman Marketing, L.L.C., Freelance, Self-Employed, Lg&P Inc, and Vox Supply Partners.

Who are Jeff Terwilliger's colleagues at OPTO International, Inc.?

Jeff Terwilliger's colleagues at OPTO International, Inc. include Vincent Spitzzeri, Corey Hudson, Carolyn Drolen, Juan Gonzalez, and Manuel Vega.

How can I contact Jeff Terwilliger?

You can use AeroLeads to view verified contact signals for Jeff Terwilliger at OPTO International, Inc., including work email, phone, and LinkedIn data when available.

What schools did Jeff Terwilliger attend?

Jeff Terwilliger holds Associate, Industrial Design from The Art Institutes.

What skills is Jeff Terwilliger known for?

Jeff Terwilliger is listed with skills including Solidworks, Product Design, Manufacturing, Injection Molding, Engineering, Metal Fabrication, Pro Engineer, and Problem Solving.

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