Gérard Dethier
Software Engineer at Sustainable Base Finance
Liège, Liège, Belgium
Summary
👤
Senior🎓
Top SchoolGérard Dethier is a software architect and full-stack engineer with 14+ years delivering robust, production-grade systems across banking, ticketing, energy and blockchain. He holds a PhD in distributed systems, co-authored a patent in distributed ledger technologies, and co-founded the Logion Blockchain Network where he architects backend services linking on-chain tokens to real-world rights. Author of the Pousse-Café framework, Gérard specializes in DDD, microservices and hexagonal architecture, and is noted for taking projects from greenfield to maturity while prioritizing code quality and operational excellence. His open-source contributions include integrating Logion into the widely used polkadot-js/apps UI, demonstrating both deep protocol knowledge and practical UX-facing work. Comfortable leading teams and shipping end-to-end solutions, he blends academic rigor with entrepreneurial drive from his base in Liège, Belgium.
14 years of coding experience
11 years of employment as a software developer
DEA, Computer Science, DEA, Computer Science at University of LiègeGeneral Secondary Education, General Secondary Education at Collège Saint-RemaclePhD, Computer Science, PhD, Computer Science at Université de Liège
French, English, German
Stackoverflow
127reputation
2kreached
7answers
1question
Github Skills (24)
substrate10
javascript10
configuration-management10
typescript10
ui-design10
polkadot-js10
typescript-types10
blockchain10
typescripts10
polkadot10
apidoc9
api9
react9
web3js9
web-development9
Programming languages (7)
Github contributions (5)
polkadot-js/apps
Jun 2022 - Sep 2022
Basic Polkadot/Substrate UI for interacting with a Polkadot and Substrate node. This is the main user-facing application, allowing access to all features available on Substrate chains.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:4 commits, 11 PRs, 14 comments in 2 months
Contributions summary:Gérard primarily contributed to the `polkadot-js/apps` repository by integrating support for the Logion blockchain network. This involved adding Logion-specific configurations, including logos, color schemes, and RPC endpoints, to the UI and configuration files. Furthermore, the user updated type definitions and API specifications to align with Logion's latest features and storage versions. They also made significant changes to the production and testing endpoints, incorporating the Logion standalone and parachain RPCs.
substrateblockchainwalletchainssubstrate-node
pousse-cafe/pousse-cafe.github.io
Jan 2017 - Feb 2025
Contributions:82 pushes, 1 branch, 1 comment in 8 years 1 month
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