Yonatan R.
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Yonatan R. Email & Phone Number

Co-Founder and CPO at Stealth Startup
Location: San Francisco, California, United States 7 work roles 2 schools
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✓ Verified May 2026 3 data sources Profile completeness 86%

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Current company
Role
Co-Founder and CPO
Location
San Francisco, California, United States
Company size

Who is Yonatan R.? Overview

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Quick answer

Yonatan R. is listed as Co-Founder and CPO at Stealth Startup, a company with 93 employees, based in San Francisco, California, United States. AeroLeads shows a matched LinkedIn profile for Yonatan R..

Yonatan R. previously worked as Director of Cybersecurity and IT at Astranis Space Technologies and Member Board Of Directors at Cybrella. Yonatan R. holds Oscp from Offensive Security.

Company email context

Email format at Stealth Startup

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Stealth Startup

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Profile bio

About Yonatan R.

Yonatan R. is a Co-Founder and CPO at Stealth Startup. They is proficient in English and Hebrew. Colleagues describe them as "Yoni is self-motivated and multi-skilled team player with huge knowledge in information security. Yoni is self motivated with huge knowledge in application security. Yoni is a person with unusual technical skills in the field of Penetration Testing and Web Application Security. I have found him to be a person who is never afraid to take on a challenging task. Yoni have the attacker and the protector skills, those skill make him a guru on Web application firewalls protection. He is a very friendly, It was very pleasure person to work with." and "At the times when Yoni came to our site, I knew I'm in good hands and I can let go, trusting him to run things independently, but in the same time be responsible to ask in advance in cases of doubt. Yoni is a fast learner and a hint is enough for him to grasp the idea. He comes with plenty of experience and a strong will to constantly learn and evolve. And on top of the above, he has a fun personality, quickly connects to all kinds of employees, being able to communicate with all levels of the company’s hierarchy. I recommend Yoni for whatever IS task you need help with – he will surly deliver his promises and he will be sincere enough not to over-promise, being realistic."

Current workplace

Yonatan R.'s current company

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Stealth Startup
Stealth Startup
Co-Founder and CPO
San Francisco, CA, US
Website
Employees
93
AeroLeads page
7 roles

Yonatan R. work experience

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Member Board Of Directors

Current
Aug 2019 - Present

Red Team Manager, Staff Security Engineer

San Francisco Bay Area

Jun 2018 - Sep 2024

Senior Information Security Engineer

San Francisco Bay Area

Dec 2013 - Jun 2018

Application Security Manager

2Bsecure

Apr 2011 - Nov 2013
Team & coworkers

Colleagues at Stealth Startup

Other employees you can reach at astranis.com. View company contacts for 93 employees →

2 education records

Yonatan R. education

Oscp

Offensive Security

Activities and Societies: Network Pentesting skills

Oswp

Offensive Security
FAQ

Frequently asked questions about Yonatan R.

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What company does Yonatan R. work for?

Yonatan R. works for Stealth Startup.

What is Yonatan R.'s role at Stealth Startup?

Yonatan R. is listed as Co-Founder and CPO at Stealth Startup.

Where is Yonatan R. based?

Yonatan R. is based in San Francisco, California, United States while working with Stealth Startup.

What companies has Yonatan R. worked for?

Yonatan R. has worked for Stealth Startup, Astranis Space Technologies, Cybrella, Tesla, and 2Bsecure@Matrix.

Who are Yonatan R.'s colleagues at Stealth Startup?

Yonatan R.'s colleagues at Stealth Startup include Richard Yang, Brielle Choquer, Alex Strulev, Jonathan K., and Andrew Lee.

How can I contact Yonatan R.?

You can use AeroLeads to view verified contact signals for Yonatan R. at Stealth Startup, including work email, phone, and LinkedIn data when available.

What schools did Yonatan R. attend?

Yonatan R. holds Oscp from Offensive Security.

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