John Pfingst
Full Stack Developer at FamilyTreeChecker.com
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolJohn Pfingst is a seasoned full stack developer and engineering leader with nine years of recent hands-on experience and a multi-decade background building high-performance, real-time systems across finance, energy, and SaaS. He combines deep technical chops—from C++ and Java real-time engines to Rails, React, Laravel, and Node.js web stacks—with proven people leadership, having grown and structured teams of 10–64 engineers and led large-scale CTRM and market-data projects. Comfortable owning the full SDLC, he focuses on performance, maintainability, and improving team velocity while reducing defects. Currently running a niche SaaS, FamilyTreeChecker.com, he demonstrates product-minded engineering and practical ops savvy by self-hosting and attracting international users through organic growth. Colleagues rely on him for architectural clarity, cross-functional coordination, and pragmatic tradeoffs between speed and long-term quality.
9 years of coding experience
19 years of employment as a software developer
Bachelor of Science (BS), Mathematics and Computer Science, Bachelor of Science (BS), Mathematics and Computer Science at Hofstra UniversityAerospace, Aeronautical and Astronautical Engineering, Aerospace, Aeronautical and Astronautical Engineering at Georgia Institute of TechnologyRegents Diploma, Regents Diploma at Wantagh Senior High SchoolOnline Web Developer Program, Online Web Developer Program at Flatiron School
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (55)
faraday10
alpha-vantage10
handlebars10
selenium10
omniauth10
rspec10
capybara10
travis-ci10
redux10
sidekiq10
thunk10
facebook-login10
newsapi10
json9
jquery9
Programming languages (8)
Github contributions (5)
jcpny1/recipe-cat
Apr 2017 - Dec 2020
Recipe Catalog app [Rails/JQuery].
Contributions:1 release, 330 commits, 5 PRs in 3 years 8 months
jqueryrailsdevisefacebook-loginhandlebars
jcpny1/spotty
Nov 2019 - Mar 2022
Spotify playlist organizer (a work-in-progress). [Rails/React]
Contributions:1 release, 1 review, 21 PRs in 2 years 4 months
railsreactspotify
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