Frederic Marand
Senior Platform Software Engineer
Villebon-sur-Yvette, Île-de-France, France
Summary
👤
Senior🎓
Top SchoolFrederic Marand is a senior platform software engineer with 20 years of experience building scalable, observable distributed systems using Go, Kafka, DynamoDB and AWS. He currently hardens Kafka libraries and platform APIs at Deliveroo while also teaching Go and SRE — the semester course he created became a published book on the Go language. A longtime Drupal core and contrib maintainer, he contributes to high-profile projects like Drupal GraphQL and Drupal Commerce, bringing deep expertise in backend quality, testing and migrations. As founder of OSInet he has delivered large-scale performance and observability projects for clients such as LeBonCoin, Ameli and Deliveroo across cloud, queueing and payment domains. He combines hands-on coding and architecture with mentoring and teaching, and is noted for turning synchronous systems into resilient, queue-driven architectures. Fluent in both legacy web ecosystems (Drupal/PHP) and modern cloud-native Go stacks, he bridges runtime performance, reliability and developer ergonomics.
20 years of coding experience
26 years of employment as a software developer
CourseraData Modeling/Warehousing and Database Administration, Data Modeling/Warehousing and Database Administration at MongoDB UniversityDESS Business Administration, DESS Business Administration at Université de Caen NormandieDEA Information systems methodology and architecture, DEA Information systems methodology and architecture at Sorbonne UniversitéIngénieur Computer Science, Ingénieur Computer Science at ENSICAEN - Ecole Nationale Supérieure d'Ingénieurs de CaenPNDS German economics, PNDS German economics at The Julius Maximilians University of Würzburg
English, French, German, Latin
Stackoverflow
2,851reputation
352kreached
55answers
3questions
foreach
top-1%
php
top-5%
lambda
top-5%
drupal
top-1%
Github Skills (23)
drupal10
develop10
testing10
foreach10
entities10
wpgraphql10
php10
wordpress-graphql10
commerce10
graphql10
entity10
back-end-development9
unit-testing9
lambda9
apidoc8
Programming languages (20)
Github contributions (5)
drupal-graphql/graphql
Sep 2016 - Jan 2017
GraphQL integration for Drupal 9/10
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:13 commits, 18 PRs, 3 pushes in 3 months
Contributions summary:Frederic primarily focused on improving the code quality and testing of the Drupal GraphQL integration. They fixed coding standard issues across multiple files, addressed a typo, and updated tests. The user also added new tests and corrected existing ones, and ensured that the field signatures match with the correct framework. Furthermore, the user added a group tag to prevent a crash in the Simpletest UI.
drupaldrupal-9graphqldrupal-8
drupalcommerce/commerce
Jul 2014 - Jul 2014
Commerce 2.x development
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 commits, 1 PR in 1 day
Contributions summary:Frederic contributed to the Drupal Commerce project by adding and modifying code related to Devel module integration. Their work involved creating and adjusting controllers to expose entity information for debugging purposes, specifically focusing on CommerceStore, CommerceOrder, and CommerceProduct entities. Furthermore, the user addressed code formatting and dependency issues, including handling delete access controls and preventing the deletion of store types when stores exist.
commerce2-x
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