Ryan: Email & Phone Number

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Lead Security Engineer at Praetorian|United States

Position:

Lead Security Engineer at Praetorian

Location:

United States

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Last updated: 2026-08-16

Updated: 2026-08-16

Found email addresses for Ryan:

Business emails:

r**n@praetorian.com

Personal emails:

h******r@purdue.edu

Found phone for Ryan:

+1-909-***-**81

A different Ryan?

Work Experience 9 years

Lead Security Engineer at Praetorian

Apr 2026 - Current

Senior Security Engineer at Praetorian

Apr 2024 - Apr 2026

Security Engineer at Praetorian

Sep 2022 - Apr 2024

Graduate Teaching Assistant at Purdue University

Jan 2021 - Aug 2022

Intern Technical Cyber at Northrop Grumman

May 2021 - Aug 2021

Webmaster at B01lers CTF Team

Jan 2017 - Jan 2021

Intern Technical Cyber at Northrop Grumman

Jul 2020 - Aug 2020

Intern Technical Cyber at Northrop Grumman

May 2019 - Aug 2019

Ryan started working in 2017, then the employee has changed 3 companies and 5 jobs. On average, Ryan works for one company for 1 year 3 months.

Ryan is proficient in English. Their professional focus is Adobe Illustrator, Adobe Photoshop, and Batch Programming across 3 core areas.

Ryan holds Attify Certified IoT Pentester, Master of Science, and Bachelor of Science certifications.

Education

Master of Science - MS at Purdue University

Bachelor of Science - BS at Purdue University

High School at Wellesley High School

Frequently Asked Questions

What is Ryan's email address?

SignalHire found verified email addresses for Ryan, both business and personal. Their business email is r**n@praetorian.com, and personal emails include h******r@purdue.edu.

What is Ryan's phone number?

SignalHire found a verified phone number for Ryan: +1-909-***-**81.

How do I contact Ryan at Praetorian?

You can reach Ryan 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 Ryan's professional background?

Ryan has 9 years of professional experience. They have held roles including Senior Security Engineer, Security Engineer, and Graduate Teaching Assistant at companies such as Praetorian, Praetorian, and Purdue University. Their education includes Master of Science - MS from Purdue University, and Bachelor of Science - BS from Purdue University.

Is Ryan's contact information up to date?

Yes. Ryan's SignalHire profile was last updated on 16 August 2026, reflecting their current position as Lead Security Engineer at Praetorian in Austin, TX, United States.

Ryan Namesakes

Name

Company

Position

Ryan

HEADQUARTER Autodetailing

CEO

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Ryan

U.S. Department of Transportation- Federal Railroad Administration (Contractor)

Executive Assistant

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Ryan

Bronwealth Financial & Tax

Executive Assistant

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