John Del Rosario
Site Reliability Engineer at Pushpay
Auckland, Auckland, New Zealand
Summary
👤
Senior🎓
Top SchoolJohn Del Rosario is a Site Reliability Engineer based in Auckland with 15 years of experience building and operating Python/Django services and cloud-native infrastructure on Google Cloud Platform. He combines hands‑on DevOps—Kubernetes, App Engine, Compute Engine, Ansible, Docker and CI—with leadership experience mentoring small teams and owning backend architecture. Comfortable in distributed environments, he focuses on developer productivity by building tools, organizing configuration, automating processes and writing clear documentation. A long‑time Lisp and Emacs enthusiast, he contributes to notable projects like the Real Python guide and perspective‑el, applying functional programming sensibilities to modernize code and docs. Pragmatic about best practices, he favors durable, maintainable solutions over chasing every new technology. He also actively gives back through open‑source contributions, tutorials and occasional talks.
16 years of coding experience
9 years of employment as a software developer
Bachelor, Information Technology, Bachelor, Information Technology at University of Cebu
Stackoverflow
23,076reputation
3.5mreached
15answers
128questions
Github Skills (21)
textbook10
python10
storybook10
guideline10
refactor10
emacs-lisp10
user-guide10
docbook10
code-migration10
refactoring10
documentation10
virtual-environment9
imaging8
ring6
google-contacts-api6
Programming languages (17)
Github contributions (5)
nex3/perspective-el
Dec 2017 - Jun 2018
Perspectives for Emacs.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 commits, 1 PR, 10 comments in 5 months
Contributions summary:John primarily focused on refactoring the code base, specifically removing deprecated or less efficient practices. They removed usages of `make-variable-frame-local` and replaced them with `frame-parameter` and `set-frame-parameter` calls, showing a focus on code modernization. The user also updated the mode-line display logic and other minor code changes to the perspective-el code. Their work involved Emacs Lisp and demonstrates a strong understanding of the underlying Emacs framework.
emacs
realpython/python-guide
Dec 2011 - Feb 2012
Python best practices guidebook, written for humans.
Role in this project:Technical Writer
Technical WriterContributions:6 commits in 1 month
Contributions summary:John primarily contributed to the documentation of the "Python best practices guidebook". Their work included adding the Zen of Python to the code style section, creating the skeleton and fleshing out content for a "Virtual Environments" scenario, wrapping lines in the virtualenvs section to fit with the style guide, and drafting content for the imaging scenario. These changes focused on adding content and organizing existing information within the guide.
python
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