John Chapin
Managing Software Engineer at Ad Hoc LLC
Philadelphia, Pennsylvania, United States
Summary
👤
Senior🎓
Top SchoolJohn Chapin is a Managing Software Engineer with 11+ years of experience leading development, delivery, and rescue of web-based applications across industries including healthcare, e-commerce, and government. He emphasizes disciplined software engineering over ad-hoc coding—defining needs, analyzing data, setting realistic goals, and iterating with measurable improvement—often translating weekly sprint feedback into project management and business cycles. His background spans hands-on work in Ruby on Rails, PHP, C#, Objective-C and Java, plus building virtualized infrastructures and introducing QA and automated testing practices. Notable projects include a secure health-information exchange with 86% test coverage and the first online vehicle registration renewal system for a major municipal government. He combines technical depth with procedural rigor, making him as comfortable tuning legacy systems as steering cross-functional delivery.
11 years of coding experience
19 years of employment as a software developer
The University of Tennessee at ChattanoogaBE, Mechanical Engineering, BE, Mechanical Engineering at Vanderbilt UniversityThe McCallie School
Japanese, Chinese
Stackoverflow
11reputation
4kreached
1answer
0questions
Github Skills (42)
api10
authentication9
ruby9
security9
sms9
rails9
factor9
frontend9
jekyll-theme8
hardware8
jekyll8
bootstrap8
2factor7
closed7
auth7
Programming languages (5)
Github contributions (5)
capitaltechnologyservices/standard_rails_template
Dec 2015 - Aug 2020
Standard template for a new Ruby on Rails project.
Contributions:44 PRs, 36 pushes, 46 branches in 4 years 9 months
ruby-on-railstemplaterailsrubyrails-project
capitaltechnologyservices/prelaunchr_for_ni
Oct 2015 - Mar 2016
Contributions:30 PRs, 31 pushes, 29 branches in 5 months
ruby-on-railsgroupsprizeclosedrails
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