John Fellman
Summary
👤
SeniorJohn Fellman is an engineering leader and founder with 11 years of hands-on experience building web and platform infrastructure, currently directing engineering at Rula after leading developer platform efforts at Square. He co-founded skyClutch to deliver web and mobile solutions for non-profits, retaining a strong product-oriented sensibility alongside technical architecture skills. His background spans front-end architecture and full-stack engineering with deep familiarity in JavaScript, Python, Ruby/Rails, and infrastructure tooling, and he brings practical ops instincts (a confessed secret love for Bash). John leads through trust and open, respectful discussion, prioritizing diverse perspectives and pragmatic decision-making. Based in Petaluma, CA, he combines startup grit with enterprise experience, able to translate complex requirements into reliable, scalable systems.
11 years of coding experience
Github Skills (55)
python-sdk10
payment-processing10
sdk10
api10
ruby-client10
square10
graphql9
ecommerce9
api-client9
pgsql9
graphql-api9
square-connect9
pg9
http9
schema9
Programming languages (10)
Github contributions (5)
gkchestertron/dotfiles
May 2015 - Apr 2026
Contributions:64 pushes, 1 branch in 11 years 1 month
skyClutch/photogrammatron
Oct 2015 - Apr 2017
Contributions:26 PRs, 28 pushes, 1 branch in 1 year 6 months
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