Jonathan: Email & Phone Number

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Senior Penetration Tester at Sikich|Greater Seattle Area, United States

Position:

Senior Penetration Tester at Sikich

Location:

Greater Seattle Area, United States

View Jonathan's Email

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Last updated: 2026-07-04

Updated: 2026-07-04

Found email addresses for Jonathan:

Business emails:

**@sikich.com

Personal emails:

****@gmail.com,

j***@sikich.com,

****@hotmail.com,

j***@ga.com

Found phones for Jonathan:

+1-909-***-**12,

+1-480-***-**48,

+1-909-***-**14

A different Jonathan?

Work Experience 15 years

Senior Penetration Tester at Sikich

Nov 2021 - Current

Penetration Tester at Sikich

Nov 2021 - Aug 2022

Avionics Lead Tech at General Atomics

May 2016 - Nov 2021

Integrated Avionics Technician at United States Air Force

May 2011 - May 2016

Jonathan started working in 2011, then the employee has changed 2 companies and 3 jobs. On average, Jonathan works for one company for 4 years.

Their professional focus is Communication, Cross-team Collaboration, and Cyber-security across 3 core areas.

Jonathan holds OSCP certifications.

Education

Computer Engineering at University of Puerto Rico-Mayaguez

Frequently Asked Questions

What is Jonathan's email address?

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

What is Jonathan's phone number?

SignalHire found multiple verified phone numbers for Jonathan: +1-909-***-**12, +1-480-***-**48, and +1-909-***-**14.

How do I contact Jonathan at Sikich?

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 15 years of professional experience. They have held roles including Penetration Tester, Avionics Lead Tech, and Integrated Avionics Technician at companies such as Sikich, General Atomics, and United States Air Force. Their education includes Computer Engineering from University of Puerto Rico-Mayaguez.

Is Jonathan's contact information up to date?

Yes. Jonathan's SignalHire profile was last updated on 4 July 2026, reflecting their current position as Senior Penetration Tester at Sikich in Chicago, Illinois, United States.

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