Ronan Duparcmeur
Code Grognard at Doconomy
Lille, Hauts-de-France
Summary
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SeniorRonan Duparcmeur is a pragmatic software leader and hands-on engineer with 25 years of experience and 11 years in senior roles, currently serving as Code Grognard at Doconomy. He cut his teeth on Ruby on Rails after a formative Slashdot moment and has since led teams and technical strategy across startups and larger companies—from CTO duties to engineering management—specializing in backend systems, ops, security and internal tooling. Ronan favors small, high-efficiency teams, sane processes, and bootstrapped growth, and he’s comfortable switching between coding and board-level decisions. His background includes tackling significant technical debt in regulated environments and steering cross-border remote squads across Europe. A self-described “teenager in his 40s,” he mixes old-school engineering rigor with a taste for mentoring and pragmatic problem-solving. Notably, he continues to contribute directly to engineering even while advising companies as a fractional CTO.
11 years of coding experience
22 years of employment as a software developer
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (36)
rails10
ruby10
minitest10
html10
syntax-highlighting10
rubocop9
mvc9
capistrano9
code-highlighter9
pygments9
activerecord9
ruby-on-rails8
no-javascript8
slack-integration8
presenter7
Programming languages (4)
Github contributions (5)
r3trofitted/mavrides
Sep 2023 - Mar 2025
Contributions:13 PRs, 31 pushes, 14 branches in 1 year 6 months
r3trofitted/war_troll
Feb 2021 - Jul 2023
Contributions:40 pushes, 22 branches in 2 years 4 months
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