DJ Greenfield
Senior Software Engineer at HopSkipDrive
Commerce City, Colorado, United States
Summary
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Rockstar🎓
Top SchoolDJ Greenfield is a Senior Software Engineer with 11 years of experience building reliable backend systems across healthcare, security, fintech, and construction tech. Based in Commerce City, Colorado, he has led and mentored engineering teams at companies like PeerStreet and Brightside Health and now focuses on product-driven engineering at Prepared. A pragmatic Rubyist and contributor to the procore-oss/blueprinter serialization library, he specializes in serialization, date/time handling, and test-driven refactors that reduce edge-case bugs. Known for helping people both through code and mentorship, he combines deep hands-on implementation with a knack for simplifying complex data flows in production systems.
11 years of coding experience
7 years of employment as a software developer
Certificate in Web Application Development with Ruby Rails and Javascript, Certificate in Web Application Development with Ruby Rails and Javascript at Turing School of Software & Design
Stackoverflow
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Github Skills (6)
json10
ruby-rails10
rails10
ruby10
testing9
serializer9
Programming languages (6)
Github contributions (5)
procore-oss/blueprinter
Oct 2017 - May 2019
Simple, Fast, and Declarative Serialization Library for Ruby
Role in this project:
Back-end Developer
Back-end DeveloperContributions:14 commits, 7 PRs, 7 pushes in 1 year 7 months
Contributions summary:DJ primarily contributed to the `blueprinter` library, a Ruby-based serialization tool. Their work focused on enhancing the library's functionality and ensuring its correct behavior. Key contributions include improvements to view handling, date/time formatting, and addressing edge cases with nil values. The user also worked on test suite organization and refactoring.
railspresenterresource-serializerdeclarativeserialization
AllPurposeName/runewords-api
Nov 2015 - Oct 2020
JSON endpoints for Diablo 2 runewords
Contributions:75 commits, 35 PRs, 24 pushes in 5 years
jsondiabloendpoints
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