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Charly Poly

Charly Poly

Developer Marketer, Co-Founder, ex-Algolia Tech Lead, YC Alumni

charlypoly
Paris, France
Joined July 2024

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Summary

Charly Poly is a dynamic Developer Marketer with a strong technical background, currently leveraging his expertise at Inngest. His role involves a blend of technical understanding and strategic marketing, where he has successfully driven significant user acquisition and brand awareness. He is also an angel investor, actively scouting for Sequoia Capital, indicating his engagement with the broader startup and venture capital ecosystem. nitter+3
As a co-founder and CEO of Defer, a Y Combinator-backed startup (W23 alum), Charly demonstrated his entrepreneurial acumen. Defer focused on enabling developers to implement async-based features, showcasing his ability to lead and scale a technology company from its early stages. meticulous+5
Charly is a prolific technical writer and speaker, with numerous publications and talks on modern web technologies like GraphQL, TypeScript, and React. He has contributed to prominent platforms like The Guild blog, Retool blog, and Inngest blog, and has spoken at conferences such as GraphQL Galaxy, showcasing his deep technical knowledge and commitment to sharing insights with the developer community. charlypoly+6
His career trajectory highlights a strong foundation in software engineering, with roles ranging from Front End Developer to Tech Lead and Lead Software Engineer at companies like Algolia, Dashlane, JobTeaser.com, and Double. This diverse experience demonstrates his expertise across the full development lifecycle and his ability to tackle complex technical challenges. weekday+1
Charly's engagement with the open-source community, particularly as a Software Engineer and PMM at The Guild Software and as a lead developer for GraphQL Code Generator, underscores his dedication to developer tools and infrastructure. He's actively involved in building and improving tools that empower other developers. meticulous+4

Work

Education

Projects

Writing

Introducing: Extended Traces

November 12, 2025

A blog post for Inngest discussing the release of Extended Traces, a feature to augment Inngest Traces with database transaction information, 3rd-party requests, and more, using Open Telemetry.

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GraphQL Code Generator v3: generate GraphQL types has never been easier!

December 8, 2022

An article and talk presented at GraphQL Galaxy 2022, detailing the evolution of GraphQL Code Generator and its new features like Type Document Node and Client Preset for easier and more lightweight type generation in front-ends.

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How not to learn GraphQL

February 14, 2022

An article written for The Guild blog on best practices and common pitfalls when learning GraphQL.

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Get the best of TypeScript Control Flow Analysis

December 3, 2021

An article for Retool's blog on how to effectively use TypeScript's Control Flow Analysis.

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TypeScript with GraphQL done right

April 16, 2021

An article discussing how to leverage React application types with GraphQL code generation for efficient development.

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Blazing-fast bug solving on React apps

January 7, 2021

A publication providing methods for setting up efficient bug-solving processes in React applications.

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From REST to GraphQL

December 1, 2020

A publication discussing the transition from REST APIs to GraphQL.

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Build maintainable React apps — Series

May 2, 2020

A series of articles offering good practices and tips for building maintainable React applications.

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A way to write tech presentations

March 2, 2019

A publication sharing a methodology for creating technical presentations.

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TypeScript — Learn the basics

May 3, 2018

A publication introducing the fundamentals of TypeScript.

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