Andy Tyler - Senior Web Application Lead

Andy Tyler

Senior Web Application Lead

Greater Exeter Area United Kingdom

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Summary

🤩

Rockstar

Andy Tyler is a Senior Web Application Lead and seasoned pentester with nine years’ experience specializing in web and mobile vulnerability research, Active Directory security, and secure application development. He has published CVEs through the Android Security Rewards Program and contributed notable tooling to the community, including the jwt_tool for testing and cracking JSON Web Tokens. Comfortable both leading teams and getting hands-on, Andy balances consultancy work with ongoing research into JWTs, Android bug bounties, and cryptographic problems while automating workflows via Docker and scripting. Prior roles span SOC leadership to senior penetration testing across boutique and enterprise security firms, reflecting deep operational and adversary-informed defensive experience. Based in the Greater Exeter Area, he brings a pragmatic, research-driven approach to hard-to-find vulnerabilities and practical pentesting guidance.

9 years of coding experience

Stackoverflow

Stats

1reputation

0reached

0answers

0questions

Github Skills (17)

python10

web-token10

command-line-interface10

base64-encoding10

jsonwebtoken10

jwt10

command-line10

cli10

algorithm9

algorithms9

implement9

decode8

it-security8

security8

base64url8

Programming languages (3)

ShellRubyPython

Github contributions (5)

ticarpi/jwt_tool

Jan 2017 - Sep 2022

:snake: A toolkit for testing, tweaking and cracking JSON Web Tokens

Role in this project:

Back-end Developer

Contributions:11 releases, 1 review, 65 commits in 5 years 8 months

Contributions summary:The user, ticarpi, primarily developed and maintained the JWT tool. Their contributions involved implementing core features for testing, tweaking, and cracking JSON Web Tokens. The user's commits showcase the development of a command-line tool, including the integration of multiple algorithms, and adding signing capabilities. They also worked on expanding the tool with functionality for exploiting vulnerabilities.

tokenssnaketestingtweakingjson-web-tokens

ticarpi/Research

Jul 2017 - Feb 2019

Contributions:6 commits, 5 pushes, 1 branch in 1 year 7 months

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