Daniel Collis-puro
Principal Engineer at ezCater
Lynn, Massachusetts, United States
Summary
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Rockstar🎓
Top SchoolDaniel Collis-puro is an engineering manager and platform-focused leader with 18 years building developer experience, cloud infrastructure, and AI enablement systems. He combines hands-on expertise in Ruby/Rails, DevOps, and AWS with a product-minded approach to designing clean interfaces—APIs or UIs—that scale for large engineering orgs. At ezCater and Heroku he drove platform initiatives that improved workflows for 100+ engineers and onboarded AI tooling to boost team productivity. A long-time open-source contributor, he refactored thoughtbot’s laptop setup and strengthened the Paperclip library for robust file handling, showing a knack for automation and idempotent tooling. He favors multidisciplinary, mentorship-driven teams and brings rare operational depth from managing high-traffic, production systems to architecting developer-facing processes.
18 years of coding experience
23 years of employment as a software developer
BS Resource Economics, BS Resource Economics at University of Vermont
Stackoverflow
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Github Skills (33)
ruby-rails10
filesystem10
file-management10
scripting10
bash10
rails10
schema-design10
file-operations10
cicd10
ruby10
automation10
script10
database-design10
fileio10
db-schema10
Programming languages (11)
Github contributions (5)
thoughtbot/paperclip
Oct 2012 - Jun 2014
Easy file attachment management for ActiveRecord
Role in this project:
Backend Developer
Backend DeveloperContributions:30 commits in 1 year 8 months
Contributions summary:Daniel primarily contributed to the Paperclip library by implementing and refactoring core functionalities related to file attachment management for ActiveRecord. Their work included adding new features, such as the `:override_file_permissions` option, and fixing bugs related to file handling, like ensuring proper resource closure after operations with OpenURI. They also improved the library's robustness by sanitizing filenames to prevent issues with image processing tools and by refactoring the filesystem storage to utilize moving files instead of copying.
file-attachmentattachmentrailsrubyactivemodel
thoughtbot/laptop
Mar 2013 - Aug 2014
A shell script to set up a macOS laptop for web and mobile development.
Role in this project:DevOps Engineer & Automation Engineer
DevOps Engineer & Automation EngineerContributions:48 commits, 1 issue in 1 year 4 months
Contributions summary:Daniel focused on automating and improving the setup and testing of a macOS laptop environment, as well as general Linux systems. They refactored the laptop setup script into modular components and added test automation, ensuring the script's idempotency. Further improvements were made to automatically create and publish Vagrant boxes based on test results, including defining box packaging processes. They also automated the testing of multiple supported Linux distributions.
a-shellmobile-developmentset-upshell-scriptmacos
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