Joe Mastey
Staff Software Engineer at Joseph Mastey LTD
Chicago, Illinois, United States
Summary
🤩
RockstarJoe Mastey is a Staff Software Engineer and seasoned engineering leader with 15 years of experience building developer-first cultures across startups, enterprises, public sector and consulting engagements. Based in Chicago, he blends hands-on backend work—evidenced by contributions upgrading OWASP's railsgoat project and fixing critical Rails migration and test issues—with strategic programs that improve onboarding, apprenticeship, and retention. As an independent consultant he has helped scale engineering teams and learning programs that measurably reduced attrition and boosted recruiting in difficult markets. At companies like Enova and Home Chef he moved between IC and management roles, growing teams and launching sustainable learning initiatives. He’s known for translating empirical research on training into practical, lasting organizational change and for being both a pragmatic coder and a people-focused coach. Less obvious: he pairs deep platform-level Rails expertise with a long-term habit of creating repeatable developer enablement systems that outlast any single project.
15 years of coding experience
11 years of employment as a software developer
Stackoverflow
26,909reputation
3.0mreached
516answers
30questions
mysql
top-5%
zend-framework
top-5%
svn
top-5%
mod-rewrite
top-5%
serialization
top-5%
magento
top-1%
Github Skills (28)
ruby-rails10
rails10
magento10
ruby10
php10
ruby-on-rails10
mysql9
svn9
ajax9
zend-framework9
sql-injection9
serialization9
security9
indexing9
wordpress9
Programming languages (4)
Github contributions (5)
OWASP/railsgoat
Jan 2017 - Dec 2017
A vulnerable version of Rails that follows the OWASP Top 10
Role in this project:
Back-end Developer
Back-end DeveloperContributions:43 commits, 18 PRs, 2 branches in 11 months
Contributions summary:Joe primarily worked on upgrading the Rails application, updating dependencies, and refactoring code to align with newer Rails versions (5). Their contributions included adding application records, changing before_filter to before_action, and adjusting rake task invocations. The user also addressed several bugs related to version migrations and database configuration. Additionally, the user fixed issues with the password reset functionality and provided fixes that enabled users to turn tests from red to green.
owasprailssecurityappsecruby
jmmastey/team_outings
Mar 2016 - May 2019
90+ Team Outings That Aren't Centered Around Drinking
Contributions:31 commits, 8 PRs, 27 pushes in 3 years 2 months
centereddrinking
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