Léo Pradel-malbreil
Founder at Sigle
Toulouse, Occitania, France
Summary
🤩
Rockstar🎓
Top SchoolLéo Pradel-malbreil is a founder and senior full-stack engineer with 11 years of experience building production-grade web and decentralized applications from Toulouse, France. He co-founded Sigle, a secure open-source web3 writing platform, and personally architected V1 and V2 stacks combining PostgreSQL, Redis, NestJS, Next.js, Relay, TRPC, Stacks.js and Ceramic. Previously a technical lead at Nuri, he designed backend and mobile architectures for a blockchain banking product and led teams through production deployments and incident resolution. An active open-source contributor, Léo has improved widely used projects like Material-UI and serverless GraphQL examples, added robust Jest test suites, and fixed critical bugs in stacks.js for the Stacks blockchain. He blends product-minded engineering with legal, fundraising and hiring responsibilities as a founder, and has shipped NFT smart contracts and protocol improvement proposals tied to decentralized identity and storage. Quietly curious about hardware and real-time systems, he has prototyped reactive devices with Arduino and Raspberry Pi in earlier roles.
11 years of coding experience
6 years of employment as a software developer
EpitechThe Bonch-Bruevich Saint - Petersburg State University of Telecommunications
French, English, Spanish
Github Skills (34)
javascript10
useraccounts10
react-components10
testing10
typescript10
accountsservice10
wpgraphql10
react-component10
material-design10
front-end-development10
jestjs10
wordpress-graphql10
typescript-types10
account-management10
graphql10
Programming languages (12)
Github contributions (5)
accounts-js/accounts
Dec 2016 - Dec 2021
Fullstack authentication and accounts-management for Javascript.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:48 releases, 33 reviews, 787 commits in 5 years
Contributions summary:Léo's commits primarily focused on setting up and integrating Jest for unit testing within the project, indicating a focus on quality assurance and code maintainability. They developed tests for both client and server-side components, including core functionalities like user creation, authentication, and email verification. The code changes also touched upon API integration and included modifications to existing components and their associated tests.
authorizationjavascriptauthenticationpasswordaccounts
serverless/serverless-graphql
Oct 2017 - Jan 2018
Serverless GraphQL Examples for AWS AppSync and Apollo
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:29 commits, 9 PRs, 14 comments in 2 months
Contributions summary:Léo made contributions across both the front-end and back-end of the serverless GraphQL application. They added linting and formatting tools (Prettier and ESLint) to improve code quality. The user implemented Jest tests for both client-side and server-side components, demonstrating a focus on testing. Furthermore, the user updated dependencies (React 16) and implemented styling changes.
aws-appsyncgraphql-examplesserverlessaws-lambdagraphql
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