Jeremy Lempereur
Rust Software Engineer at IOmentum
Lille, Hauts-de-France
Summary
🤩
Rockstar🎓
Top SchoolJeremy Lempereur is a Senior Software Engineer with nine years of experience specializing in Rust and backend systems, currently contributing to Mozilla codebases and working at Proton and Apollo GraphQL. He has a strong OSS footprint—contributions to high-profile Rust projects like servo/rust-url, Mozilla's neqo (QUIC), and sqlx showcase expertise in parsers, networking, and macro-driven SQL safety. Jeremy pairs backend and systems-level thinking with practical distributed-systems experience (bastion, Apollo router) and a history of shipping production services in Go, Node.js, and embedded Rust. He’s curious about management and leadership, actively developing those skills while staying hands-on in code and architecture. Based in Lille, France, he’s equally comfortable refactoring deep graphics/math modules as he is improving query planners and build tooling, and he often gravitates toward Rust-based OSS projects where he invests sustained effort.
9 years of coding experience
5 years of employment as a software developer
Cycle technicien d’infrastructure, En cours de Cycle Expert en Systèmes d'Information, Informatique, Major de Promotion, Cycle technicien d’infrastructure, En cours de Cycle Expert en Systèmes d'Information, Informatique, Major de Promotion at IsiTechFull Stack Web Development Certification, Computer Software Engineering, Full Stack Web Development Certification, Computer Software Engineering at Free Code CampMaster 2, Technologie informatique / technologie des systèmes informatiques, Master 2, Technologie informatique / technologie des systèmes informatiques at SUPINFO - The International Institute of Information TechnologyCollege FenelonCollege Fenelon / Lycee de la trinité
French, English, German
Github Skills (49)
algorithm10
algorithms10
bezier10
async10
macros10
http10
clippy10
query-optimization10
distributed-systems10
url-parsing10
networking10
wpgraphql10
graphic10
data-structure10
federation10
Programming languages (17)
Github contributions (5)
apollographql/router
Sep 2021 - Jan 2023
A configurable, high-performance routing runtime for Apollo Federation 🚀
Role in this project:
Backend Developer
Backend DeveloperContributions:1 release, 1315 reviews, 444 commits in 1 year 4 months
Contributions summary:Jeremy primarily contributed to the backend logic of the Apollo Router project, focusing on improving performance and functionality. They implemented keepalive configurations for the HTTP subgraph fetcher and added support for processing primary stream items and errors correctly. Furthermore, the user refactored the server framework, switching to Warp with CORS configuration. They have also made improvements to the query planning and error handling processes.
reactconfigurableruntimeapollo-federationgateway
bastion-rs/bastion
Apr 2020 - Jan 2022
Highly-available Distributed Fault-tolerant Runtime
Role in this project:Back-end Developer
Back-end DeveloperContributions:23 reviews, 140 commits, 89 PRs in 1 year 9 months
Contributions summary:Jeremy primarily contributed to the back-end logic of the `bastion` project, focusing on features related to distributed systems and concurrency. Their work included implementing a round-robin dispatcher, which involved modifying the core dispatcher logic and adding a new dispatcher handler. They also added examples showcasing broadcast messages and prime number calculations, demonstrating practical use cases of the framework. These changes suggest a focus on improving the core functionality and usability of the distributed, fault-tolerant runtime.
fault-tolerantfaultruntimeproc-macrofault-tolerance
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