Ryan Johnson
CTO at Inner Fence
Bothell, Washington, United States
Summary
👤
Senior🎓
Top SchoolRyan Johnson is a CTO and co-founder with 18 years of experience building secure, user-facing mobile and web platforms, best known for creating the Credit Card Terminal for iPhone featured in Apple’s "Office" campaign and the Wall Street Journal. He combines deep identity and Windows security expertise—shaped by years at Microsoft working on Kerberos, Active Directory, ADFS/Geneva—with hands-on product and mobile engineering across iOS, Android, and web. Equally comfortable writing secure code and navigating app store distribution, he has a strong track record of shipping high-ranking consumer apps and architecting authentication systems. Ryan’s background in computer science and discrete mathematics, plus early work as a TA building low-level tools, gives him a rare mix of protocol-level rigor and product-driven pragmatism.
18 years of coding experience
8 years of employment as a software developer
B.S. Double Major Computer Science & Mathematics (Discrete Math Concentration) Minor Literature, B.S. Double Major Computer Science & Mathematics (Discrete Math Concentration) Minor Literature at Rose-Hulman Institute of TechnologyRochester Community High School
Github Skills (50)
captcha9
ruby9
csharp9
braintree9
windows-forms9
homebrew9
hud9
recaptcha9
swift9
sinatra8
activeadmin8
rails8
credit8
programming-language8
pandora8
Programming languages (8)
Github contributions (5)
rdj/schema_plus_views
Jan 2017 - Mar 2022
Contributions:2 pushes, 1 branch in 5 years 2 months
queryingrailsrubymigrationsactiverecord
rdj/advent_py
Dec 2022 - Jun 2026
Contributions:285 pushes, 1 branch in 3 years 6 months
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