Stéphane Loeuillet
Infra And Automation Guy
Greater Nantes Metropolitan Area France
Summary
🤩
Rockstar🎓
Top SchoolStéphane Loeuillet is an infrastructure and automation specialist with 18 years’ experience building and hardening scalable, manageable systems across finance, telecom, media and embedded domains. Currently leading infra and automation at Kaiko, he blends hands-on engineering (from low-latency datacenter design to config management and CI/CD) with mentoring and process-driven industrialization work done at Euronext. A pragmatic problem-solver, he routinely reconciles legacy and modern tooling, architects convergent provisioning for virtual and physical servers, and has built custom CMDBs to centralize operations. His open-source contributions include extending Erigon’s GraphQL interface to expose richer Ethereum block and transaction data, demonstrating an ability to bridge systems engineering with backend protocol-level development. Based in the Nantes metro area, he’s known for curiosity, knowledge-sharing, and making complex infrastructures more observable and operable.
18 years of coding experience
17 years of employment as a software developer
Advanced Automation: Ansible Best Practices (DO447), Advanced Automation: Ansible Best Practices (DO447) at RedHat Training & CertificationBiology, computer science, Biology, computer science at Université de BourgogneIsilon 7.x, Isilon 7.x at EMCBachelor, Bachelor at Lycée de la communication Alain-Colas, NeversUrbanisme et Architectures Techniques en 2014, Urbanisme et Architectures Techniques en 2014 at Capgemini InstitutMaster 2 - European Master in Computer Science, Master 2 - European Master in Computer Science at CS2I
French, English, German, Spanish
Github Skills (15)
graphql10
go10
api10
ethereum10
apidoc10
wordpress-graphql10
blockchain10
wpgraphql10
data-structures8
data-structure8
databases6
administrator6
database-administration6
admin6
database6
Programming languages (11)
Github contributions (5)
erigontech/erigon
Feb 2023 - Nov 2024
Ethereum implementation on the efficiency frontier https://docs.erigon.tech
Role in this project:
Backend Developer
Backend DeveloperContributions:3 reviews, 6 PRs, 35 comments in 1 year 9 months
Contributions summary:Stéphane implemented a GraphQL interface for the Ethereum implementation, adding essential fields to the block and transaction data structures. Their contributions included modifying GraphQL schema resolvers and helper functions to incorporate features like input data, gas prices, and transaction logs. They also addressed potential nil pointer dereferences in cases such as contract creation and implemented the block range functionality. This work focused on enhancing the GraphQL API to provide more complete and accurate data about the blockchain.
ethereumsolidityfrontierblockchain
SLoeuillet/erigon
Feb 2023 - Jul 2024
Ethereum implementation on the efficiency frontier
Contributions:1 PR, 26 pushes, 9 branches in 1 year 5 months
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