Yohan Piron - Engineering Manager at Pennylane

Yohan Piron

Engineering Manager at Pennylane

Paris, Ile-de-France

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Summary

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Senior

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Top School

Yohan Piron is an Engineering Manager based in Paris with 12 years of experience leading Ruby on Rails teams and building backend systems for startups and scale-ups. He combines hands-on development—especially in Rails, GraphQL and background processing—with strategic leadership as a former CTO-as-a-service and Chief Technology & Product Officer who scaled a product from 200 to 3,000 tenants. Comfortable structuring distributed teams and remote policies, he has grown engineering groups from early hires to international teams while introducing product, design and data science practices. Yohan is pragmatic about roadmaps and recruitment, skilled in Shape Up and Agile ways of working, and also codes AI prototypes in Python, bringing a practical blend of product thinking and technical execution. Fluent in Japanese culture (Japan is his second home) and a self-declared curry enthusiast, he mixes technical rigor with global curiosity.

12 years of coding experience

10 years of employment as a software developer

DULCO - Japanese (2 year degree. This diploma is internal to the school), Japanese language and civilization, DULCO - Japanese (2 year degree. This diploma is internal to the school), Japanese language and civilization at Institut national des Langues et Civilisations orientales

Master degree in Software Engineering, Computer Programming/Programmer, General, Master degree in Software Engineering, Computer Programming/Programmer, General at ETNA, école d'alternance en informatique

Bachelor degree in Software development, Web development, Bachelor degree in Software development, Web development at AFPA

English, Japanese, French

Stackoverflow

Stats

2,023reputation

154kreached

2answers

2questions

Github Skills (34)

ruby9

mvc9

rails9

tabletop9

html9

activerecord8

ruby-on-rails8

toolbox8

reporter7

simpleform6

ssh6

glyph-icons6

haml6

github6

git6

Programming languages (2)

CSSRuby

Github contributions (5)

Yinfei/dotemacs

Nov 2016 - Dec 2024

Contributions:60 pushes, 1 branch in 8 years 2 months

Yinfei/yinfei.github.io

May 2015 - Jan 2023

Contributions:1 release, 37 pushes, 1 branch in 7 years 8 months

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