John Ciolfi
Director of Engineering at MathWorks
Summary
👤
SeniorJohn Ciolfi is a product-minded software engineer with 10 years of experience focused on back-end and cloud-native solutions, currently working on Pinterest’s edge traffic team. He pairs a strong academic foundation—a BS and MS in Computer Science and Mathematics from Northeastern—with practical expertise in scalable microservices, API design, and non-blocking asynchronous systems. His background spans networking and cybersecurity research assessing broadband access disparities, full-stack education tools, and performance-driven co-op roles that reduced latency and improved service reliability. Comfortable in highly technical, fast-paced environments, he enjoys exploring new tools and systems through hands-on tinkering. Outside of work he balances technical curiosity with athletic pursuits like rock climbing and team sports, a blend that informs his collaborative, resilient approach to engineering. An unusual strength is his experience bridging research-grade network measurement with production engineering, enabling data-driven decisions about performance and accessibility.
10 years of coding experience
Github Skills (66)
ripgrep10
python10
language-server-protocol10
grep10
flycheck10
ruby10
command-line-tool10
cpp10
syntax-checking10
clang10
javascript10
emacs-lsp10
emacs10
html10
golang10
Programming languages (8)
Github contributions (5)
mathworks/Emacs-MATLAB-Mode
Aug 2024 - Apr 2026
Edit, lint, debug, and run MATLAB in Emacs
Contributions:4 releases, 5 PRs, 459 pushes in 1 year 8 months
emacsmatlab
JohnC32/perforce-emacs
Feb 2022 - Sep 2022
Integration of the Perforce software version management system into GNU Emacs
Contributions:21 commits, 42 pushes, 1 branch in 7 months
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