Sébastien Dan
Staff Software Engineer at Polygon Labs
France
Summary
👤
Senior🎓
Top SchoolSébastien Dan is a Staff Software Engineer with 11+ years of cross-industry experience building scalable web and blockchain infrastructure across France, Japan, and North America. He blends hands-on full‑stack expertise (React, Kubernetes, Helm) with research-led work on decentralized protocols and zero-knowledge proofs, co-authoring the Topos interoperability whitepaper that led to Toposware’s acquisition by Polygon Labs. Comfortable in both startup and large-scale production contexts—from banking and game live-ops to AI/robotics research—he’s known for turning complex systems into production-ready platforms and for automating CI/CD and infrastructure. As a technical leader he focuses equally on architecture and people, mentoring teams to scale ecosystems rather than just codebases. An engineer who started in chemical engineering, he often applies rigorous, system-level thinking to software problems, bridging research and product delivery.
11 years of coding experience
10 years of employment as a software developer
Master of Engineering (MEng) Chemical Engineering and Computer Science, Master of Engineering (MEng) Chemical Engineering and Computer Science at ENSIACET
French, English, German, Japanese
Stackoverflow
1,354reputation
244kreached
5answers
2questions
kubernetes
top-5%
Github Skills (200)
nodejs10
workspaces10
yarn-workspaces10
nrwl-nx10
build-system10
cypress10
extensible10
javascript10
cli10
server-side10
react10
monorepo10
nest10
angular10
typescript10
Programming languages (15)
Github contributions (5)
topos-protocol/faucet
Sep 2023 - Mar 2024
Official Topos faucet for the Topos testnet
Contributions:17 releases, 1 review, 29 PRs in 6 months
topos-protocol/local-erc20-messaging-infra
Jun 2023 - Feb 2024
Run the ERC20 messaging infra with docker compose
Contributions:17 releases, 9 reviews, 39 PRs in 8 months
blockchaincross-chainweb3
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