Julien Lengrand-lambert
Head Of Developer Advocacy, GenAI Adoption Lead at ING
Nieuwegein, Utrecht, Netherlands
Summary
👤
Senior🎓
Top SchoolJulien Lengrand-lambert is a seasoned engineering leader and developer advocate with 14 years of experience building developer experience, communities, and high-performing teams across fintech and enterprise settings. As Head of Engineering Excellence and Developer Advocacy at ING and a former team lead at Adyen, he blends hands-on engineering with strategic developer relations to make engineers the visible heroes of their organizations. A Google Developer Expert in Kotlin, he contributes to notable open-source projects such as the hub4j/github-api, where he extended release workflows and hardened tests. Julien has a track record of creating enduring tech communities—from founding a long-running Utrecht meetup to launching corporate tech blogs and meetups—that drive cross-pollination and product impact. He pairs a deep technical background in image processing and embedded systems with a talent for coaching, program-building, and turning developer journeys into measurable outcomes.
15 years of coding experience
12 years of employment as a software developer
Ingénieur, Traitement de Signal, Acoustique sous-marine, Informatique, Ingénieur, Traitement de Signal, Acoustique sous-marine, Informatique at ENSTA Bretagne (ENSIETA)Master's degree, Image Processing, Computer Science, Machine Learning, Underwater Acoustics, Master's degree, Image Processing, Computer Science, Machine Learning, Underwater Acoustics at ENSTA
French, English, German, Dutch
Stackoverflow
12,415reputation
1.5mreached
142answers
131questions
argparse
top-1%
image-processing
top-5%
python
top-1%
opencv
top-5%
Github Skills (20)
github-api-v310
github10
python10
apidoc10
testing10
java10
argparse10
javas10
api10
github-api10
java-api10
image-processing9
opencv9
client-library9
junit9
Programming languages (20)
Github contributions (5)
hub4j/github-api
Jun 2021 - Jun 2021
Java API for GitHub
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:6 reviews, 15 commits, 1 PR in 1 day
Contributions summary:Julien's primary contribution involves extending the GitHub API Java library with functionality related to releases. They implemented features to handle discussion categories within releases, adding the ability to specify the discussion category name during release creation and update. They also developed comprehensive tests, including those for simple releases, double-release scenarios, and releases with unknown categories, ensuring the robustness of the API.
java-apijavagithub-api-v3apiclient-library
adyen-examples/adyen-php-online-payments
Sep 2021 - Aug 2022
Accept payments on your PHP/Laravel-based website with cards, wallets, and key local payment methods
Contributions:2 reviews, 20 commits, 12 PRs in 10 months
laravelphp
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