Jonathan: Email & Phone Number

Opt-Out

Founder & CEO at Spacetime Security|United States

Position:

Founder & CEO at Spacetime Security

Location:

United States

View Jonathan's Email

Up to 10 free lookups. No credit card required.

Last updated: 2026-07-02

Updated: 2026-07-02

Found email addresses for Jonathan:

Business emails:

**@spacetimesecurity.ai

Personal emails:

j******z@gmail.com

Found phones for Jonathan:

+1-870-***-**56,

+1-323-***-**81

A different Jonathan?

Work Experience 23 years

Founder & CEO at Spacetime Security

Jan 2026 - Current

Principal Researcher at Stealth AI Startup

Jun 2025 - Dec 2025

Principal Security Penetration Tester at Protegrity

Oct 2024 - Jun 2025

Senior Security Penetration Tester at Protegrity

Dec 2022 - Oct 2024

Senior Penetration Tester at Amazon

Aug 2022 - Nov 2022

Founder & CEO at Mageni Security LLC

Jun 2017 - Aug 2022

Information Security Consultant at BANCO CARIBE

Jun 2010 - May 2022

Founder & CEO at Mageni Security EIRL

Jun 2008 - Dec 2018

Information Security Consultant at Banco Santa Cruz RD

Sep 2014 - Nov 2016

Information Security Consultant at Banco de Reservas

Sep 2015 - Oct 2015

Information Security Consultant at VIVA - Estamos de tu lado

Oct 2012 - Oct 2012

Information Security Consultant at TRICOM, S.A.

Jun 2008 - Oct 2010

Principal Penetration Tester at Square Solutions

Mar 2004 - Jun 2008

Founder & Chief Research Officer at Cassandra Networks

Jun 2006 - Apr 2007

Principal Security Architect at Ministerio de Educación República Dominicana

Aug 2004 - Jun 2006

Information Security System Auditor at Bancredito, S.A

Sep 2003 - Aug 2004

Information Security System Auditor at SEGNA (Seguros La Nacional)

Sep 2003 - Aug 2004

Information Security System Auditor at TRICOM, S.A.

Sep 2003 - Aug 2004

Jonathan started working in 2003, then the employee has changed 15 companies and 9 jobs. On average, Jonathan works for one company for 2 years 6 months.

Jonathan is proficient in English and Spanish. Their professional focus is A2A (Agent‑to‑Agent Protocol) – Google, ACP (Agent Network/Communication Protocol) – IBM, and Adversarial Simulation across 3 core areas.

Jonathan holds CompTIA A+ ce Certification, CompTIA CySA+ ce Certification, and CompTIA IT Operations Specialist – CIOS Stackable Certification certifications.

Education

Bachelor of Science - BS at Western Governors University

Frequently Asked Questions

What is Jonathan's email address?

SignalHire found verified email addresses for Jonathan, both business and personal. Their business email is **@spacetimesecurity.ai, and personal emails include j******z@gmail.com.

What is Jonathan's phone number?

SignalHire found multiple verified phone numbers for Jonathan: +1-870-***-**56, and +1-323-***-**81.

How do I contact Jonathan at Spacetime Security?

You can reach Jonathan 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 Jonathan's professional background?

Jonathan has 23 years of professional experience. They have held roles including Principal Researcher, Principal Security Penetration Tester, and Senior Security Penetration Tester at companies such as Stealth AI Startup, Protegrity, and Protegrity. Their education includes Bachelor of Science - BS from Western Governors University.

Is Jonathan's contact information up to date?

Yes. Jonathan's SignalHire profile was last updated on 2 July 2026, reflecting their current position as Founder & CEO at Spacetime Security.

Similar profiles

Name

Company

Position

Jess Lamb

CoachU Tutoring

Founder & CEO

Get contacts

Nandini Rastogi

Stackwise Media

Founder & CEO

Get contacts

Aurora Krotoa Moses

There Is More Project

Founder & CEO

Get contacts

Pratiek

VUEE design

Founder & CEO

Get contacts

Gustavo Natotschiev

Blueprinted Digital

Founder & CEO

Get contacts

Rochelle Castillejos

ProCareer Consultancy

Founder & CEO

Get contacts

See more profiles

Data Privacy

GDPR COMPLIANT

SignalHire complies with the General Data Protection Regulation (GDPR). SignalHire follows GDPR requirements, including but not limited to rights of data subjects to access, correct, or delete their personal information and supports the right to be forgotten.

CCPA COMPLIANT

SignalHire is CCPA-compliant and provides California residents the right to know, access, opt out, and request deletion of their personal data.