Fletcher Heisler
Chief Executive Officer at Authentik Security
Greater Philadelphia United States
Summary
🤩
Rockstar🎓
Top SchoolFletcher Heisler is a seasoned technology executive with 13 years of experience building developer-focused products and security-first engineering teams, now serving as CEO of Authentik Security. He previously founded RealPython.com and Hunter2 (YC W18), scaling practical developer education and appsec training businesses and later led developer enablement at Veracode. Fletcher blends product-first entrepreneurship with hands-on technical leadership—having been CTO, VP Engineering, and a consultant—bringing a mix of operational rigor and developer empathy to growth-stage ventures. Based in Greater Philadelphia and trained in Operations Research and Financial Engineering at Princeton, he pairs analytical decision-making with a knack for translating complex security and developer workflows into accessible learning experiences. An oft-overlooked strength is his track record of turning developer education into scalable, repeatable programs that directly improve code quality and security posture.
13 years of coding experience
10 years of employment as a software developer
B.S.E. Operations Research and Financial Engineering with Applications of Computing, B.S.E. Operations Research and Financial Engineering with Applications of Computing at Princeton University
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (52)
kubernetes10
reverse-proxy10
saml10
oauth2-client10
authentication-middleware10
authentication10
proxy10
security10
oidc-client10
basic-authentication10
exploit10
authorization10
oidc-provider10
oauth2-server10
octokit9
Programming languages (5)
Github contributions (5)
fheisler/lyricize
Jan 2014 - Feb 2017
Contributions:6 commits, 2 pushes in 3 years 1 month
FindYourVaccine-org/FindYourVaccine.org
Jan 2021 - Mar 2021
Contributions:1 PR, 134 pushes, 9 branches in 1 month
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