Nov 2023 - Present
AeroLeads people directory · profile
Jon Callas Email & Phone Number
Technologist, Inventor, Executive
at
SRI International
1 work email found
@eff.org
3 phones found area 408, 888, and 202
LinkedIn matched
✓ Verified Jul 2026
4 data sources
Profile completeness 100%
Current company
Role
Technologist, Inventor, Executive
Location
San Jose, California, United States
Who is Jon Callas? Overview
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Quick answer
Jon Callas is listed as Technologist, Inventor, Executive at SRI International, based in San Jose, California, United States. AeroLeads shows a work email signal at eff.org, phone signal with area code 408, 888, 202, and a matched LinkedIn profile for Jon Callas.
Jon Callas previously worked as Senior Computer Scientist at Sri International and Founder, Distinguished Engineer at Zatik Security. Jon Callas holds Musical Pathology from University Of Southern North Dakota At Hoople.
Company email context
Email format at SRI International
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{first}@eff.org
86% confidence
AeroLeads found 1 current-domain work email signal for Jon Callas. Compare company email patterns before reaching out.
Profile bio
About Jon Callas
I design products and systems. I am good at thinking like a customer and steering a vision to making people happy. I am a software engineer, user experience designer, and technologist.Specialties: Software, security, operating systems, collaboration, virtual communities, entertainment software, user interface design
Listed skills include Security, Computer Security, Information Security, Encryption, and 46 others.
Current workplace
Jon Callas's current company
Company context helps verify the profile and gives searchers a useful next step.
16 roles · 47 years
Jon Callas work experience
A career timeline built from the work history available for this profile.
Founder, Distinguished Engineer
CurrentFounded Zatik Security, a collective of cybersecurity industry experts that provide top-tier security guidance for small to medium businesses. Many companies outside of the Fortune 100 struggle to compete for security talent, and these companies and their customers are at more risk every day. - We provide pragmatic world class security guidance for companies of all sizes that are establishing or maturing a cybersecurity program. - We work in a transparent way with partners and clients who share our commitment to quality, inclusion, and trust. - We lay the groundwork for the future by training next generation of security leaders through apprenticeships, training, and mentoring of diverse early in career security professionals.Every company connected to the internet needs a security program. Unless you have the deep pockets of a tech giant, you need a small and scrappy team that does everything. Either you compromise depth to achieve breadth, or you pay a premium for top-shelf multi-skilled experts. We can help.
Aug 2023 - Present
Director Of Public Interest Technology
Aug 2020 - Jun 2023
Senior Technology Fellow
Dec 2018 - Aug 2020
Security Design And Architecture Manager
We break things. And then we put them back together. We teach our colleagues how to make things we can't break.
Apr 2016 - Dec 2018
Co-Founder
Blackphone
Co-founder and board member at Blackphone.
2013 - Apr 2016
Co-Founder, Chief Technical Officer
Silent Circle
2012 - Apr 2016
Chief Technical Officer
Jul 2011 - Jan 2013
Security Privateer
I designed and built core cryptographic and concurrent programming systems that are in use by hundreds of millions of people, and pushed a number of same through government approvals.
Oct 2009 - Jul 2011
Cto, Cso, And Co-Founder
Jul 2002 - Oct 2009
Senior Architect
2001 - 2002
~1 yr
Director Of Software Engineering
1999 - 2001
~2 yrs
Senior Scientist Ii
1995 - 1997
~2 yrs
Co-Founder
World Benders, Inc.
1993 - 1995
~2 yrs
Principal Software Engineer
1981 - 1993
~12 yrs
Member Of The Technical Staff
Century Computing
1980 - 1981
~1 yr
4 education records
Jon Callas education
Musical Pathology
University Of Southern North Dakota At Hoople
Bachelor Of Science (B.Sc.), Mathematics, Mathematics, Philosophy, Computer Science, English Lit.
University Of Maryland
Education record
University Of Maryland
Musical Pathology
University Of Southern North Dakota At Hoople
FAQ
Frequently asked questions about Jon Callas
Quick answers generated from the profile data available on this page.
What company does Jon Callas work for?
Jon Callas works for SRI International.
What is Jon Callas's role at SRI International?
Jon Callas is listed as Technologist, Inventor, Executive at SRI International.
What is Jon Callas's email address?
AeroLeads has found 1 work email signal at @eff.org for Jon Callas at SRI International.
What is Jon Callas's phone number?
AeroLeads has found 3 phone signal(s) with area code 408, 888, 202 for Jon Callas at SRI International.
Where is Jon Callas based?
Jon Callas is based in San Jose, California, United States while working with SRI International.
What companies has Jon Callas worked for?
Jon Callas has worked for Sri International, Zatik Security, Electronic Frontier Foundation, Aclu, and Apple.
How can I contact Jon Callas?
You can use AeroLeads to view verified contact signals for Jon Callas at SRI International, including work email, phone, and LinkedIn data when available.
What schools did Jon Callas attend?
Jon Callas holds Musical Pathology from University Of Southern North Dakota At Hoople.
What skills is Jon Callas known for?
Jon Callas is listed with skills including Security, Computer Security, Information Security, Encryption, Cryptography, Cloud Computing, Pki, and Penetration Testing.
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