Stéphen Jannin
PLATFORM ENGINEERING DIRECTOR at TheFork
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolStéphen Jannin is a platform engineering director based in Paris with 26 years of hands-on and leadership experience building resilient, high-traffic platforms across automotive, defence, capital markets and consumer web. He has grown and led multidisciplinary teams of 50+ engineers to deliver cloud migrations, microservices transformations and developer experience programs that cut response times, maintenance overhead and booking-related revenue loss. At TheFork he drove a full AWS migration, automated secure deployments to enable 10x weekly releases, and instituted quality, FinOps and AppSec practices that measurably reduced bugs and costs. Previously he shaped architecture and platform strategy for Société Générale’s capital markets portfolio, scaling systems to support thousands of services and global trading performance. Known for blending deep technical craftsmanship (C++, C#, distributed systems) with pragmatic product-focused architecture, he measures technical debt to prioritize investments that unlock business outcomes. He also runs climate and coaching initiatives internally, showing a rare mix of operational rigor and people-first leadership.
12 years of coding experience
5 years of employment as a software developer
Diplôme d'études approfondies, Mecanics and Energy, Diplôme d'études approfondies, Mecanics and Energy at Université Henri Poincaré, Nancy 1Engineer's degree, Structural Engineering, Engineer's degree, Structural Engineering at Polytech Nancy
English, French
Github Skills (61)
monitoring10
observability10
dashboard10
visualization10
messaging10
mysql10
grafana10
visualize10
analytics10
go10
prometheus10
business-intelligence10
composable10
message-bus10
elasticsearch10
Programming languages (7)
Github contributions (5)
stephenjannin/csnats
May 2016 - Jun 2024
Contributions:4 PRs, 9 pushes, 4 branches in 8 years 1 month
nats
stephenjannin/nats-elasticsearch
May 2016 - Jul 2022
Contributions:11 commits, 10 pushes, 1 branch in 6 years 2 months
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