JavaScript experts, mentors, speakers

Juan helps people learn tech skills so they can level up their life. Founder of http://thecodeenigma.com, content creator, and Oktanaut!

Arjun is a program manager at Microsoft, where his team builds Playwright. Playwright is a new library for automated end-to-end testing of web applications across all modern web browsers.

Working as an Engineering Mananger / Tech Lead for a couple of years alongside with a 15+ experience on engineering area in 3 (three) different countries working with several FE/BE & Full-Stack teams.

Shain is a Developer Advocate at Decentology, where he teaches about topics in Web3 and how to build in Web3. He previously worked at NASA, The Boring Company, Microsoft, and Amazon, focusing mainly on web and mobile development. Shain spends most of his time building side projects, engaging with the Web3 community, playing poker, and working out!

Lindsey Simon is the VP of Engineering at Vercel. Making the Web faster has been his lifelong career ambition. Prior to Vercel, Lindsey spent seven years at Google, where he helped launch App Engine as an original core team member, and worked as a tech lead on the Google Translate and Web Performance teams. Lindsey has lived in San Francisco for the past 15 years, and his creative hobbies (beyond coding) include writing music and hunting for wild mushrooms.

Matheus is a Staff Front-End Engineer at Medallia, building their surveys platform and helping them shape the customer experience market with React, and a Google Developer Expert in Web Performance. His areas of interest include React and its ecosystem, JS and compile-to-JS languages, DX, and perceived performance optimization. Aside from public speaking about these, he also volunteers at TechLabs, teaching front-end development.

SimpleX Chat (http://simplex.chat) founder - the 1st chat platform that does not have any user identifiers. Created Ajv JSON validator used by millions of JS apps.

Fan of JavaScript + Python, analogue photography, and the serial comma. Also wrote a book about GraphQL.

Maya is a software engineer who has been creating complex frontend products for almost a decade. From workflow editors and no-code expert knowledge automation, to data labeling tools for image, video and medical data, she’s seen it all—or at least a lot of it. She studied fine arts painting and game development, but her passion is JavaScript and the web. She is bridging the gap between these different worlds with explorations in Three.js, WebGL, and 3D art.

As a Senior React Native Engineer at Shopify, Haris is helping create a better world of commerce. He runs a developer focused online store (repitsupply.com), has a weird obsession with dinosaurs, and is still emotionally recovering from the terrible GoT finale.

Ejiro Asiuwhu is a product engineer who works at the intersection of software, product, and design. He's bullish on leveraging technology to solve user problems and create magical experiences, focusing ruthlessly on what users care about. He is also a co-founder and product engineer at Veet.

Callum Macrae is a developer and occasional musician based in London, UK, with a passion for using JavaScript to solve complicated problems. His current favourite things to work with are Vue and SVGs (but only sometimes at the same time). He is the author of Vue.js: Up and Running, a book about getting started with Vue. He can be found on Twitter and GitHub as @callumacrae.

Robin Bender Ginn is the Executive Director of the OpenJS Foundation. Hosted by the Linux Foundation, OpenJS is the neutral home to grow and sustain the JavaScript and web ecosystem with 35 projects including Appium, Electron, Jest, jQuery, Node.js and webpack. Previously, Robin led major initiatives at Microsoft to advance open source technologies, community development, and open standards.

Long-time Londoner, born in Bristol and raised in Fleet. I blog at https://blog.johnnyreilly.com and I work/have worked on a number of open-source TypeScript projects including: - Definitely Typed - ts-loader - fork-ts-checker-webpack-plugin I also wrote the history of Definitely Typed: https://blog.johnnyreilly.com/2019/10/08/definitely-typed-movie.

Claudio Wunder is an Engineer at HubSpot working on their Frontend Platform. Claudio is part of OpenJS Foundation's governance and contributes to open source through Node.js, Webpack, OpenJS, GSoC, GNOME and other mediums.

Maurice de Beijer is an independent software consultant and trainer. He specializes in TypeScript, ECMAScript, React and Svelte. His work includes popular collaboration software as well as a large, global, safety application for the oil and gas industry. He has a preference for working with startups and smaller, more dynamic companies. Maurice is also active in the open source community. He teaches ECMAScript, TypeScript, React, Cypress, Playwright and RxJS courses. Since 2005, he has received Microsoft’s Yearly Most Valuable Professional Award. Further, Maurice is active in the Dutch dotNed user group and helps organize its meetings.

Ana works as a front-end developer for the agency Hactar. She started coding as a teenager building fan sites, and has been working as a front-end developer for the last 11 years. Nowadays, Ana spends most of her free time experimenting on her personal blog and is particularly interested in ethics, IndieWeb, sustainability, plants, cooking, privacy and all things CSS.

Maintaining and contributing to TanStack Router & Start

Co-Founder of Custodian, VC-backed insurtech startup based in London. Nathalia also created Metos - metos.app, a platform for writers. French multi-awards technologist, you can find her on instagram at @yeahgirlscode where she documents her journey in tech. Outside of coding, Nathalia trains in Muay Thai and enjoys playing different musical instruments.

I'm a Node.js core contributor and founder of the diagnostics working group. I've been working on performance and diagnostics tools for a decade now.

Alessia lives in New York City with her wife, son, and rambunctious cat. She loves ECMAScript, building in the open, and making plotter art with her two trusty drawing robots.

Nathan has been working on .io multiplayer game developer for 7 years, helping build & scale games like Krunker.io, Diep.io, and Ev.io over seven years. He's a fan of games that are easy to learn but challenging to master. Away from coding, he’s often found trail running and doing photography. Currently, he’s building open-source tools to help multiplayer game devs with distribution at Rivet.

Jason Williams is a Senior Software Engineer at Bloomberg LP in London, UK, focusing on performance. His work in performance includes collaborating with the W3C Web Performance Working Group to bring Container Timing to the web, a more accurate improvement over Largest Contentful Paint. He has also collaborated on V8 improvements, bringing heat snapshot times down from 10 minutes to 6 seconds. In the open-source community, he is the original author and developer of Boa, an open-source JavaScript engine written in Rust. He is heavily involved in the evolution of ECMAScript, serving as an author on the Stage 4 proposal for Promise.allSettled, which ensures all promises settle before returning results. He is also a champion for the Stage 3 Temporal proposal (for which Boa’s temporal_rs the implementation used in Chrome), which aims to provide standard objects and functions for working with dates and times in ECMAScript.

Svelte Ambassador and Maintainer, sometimes called a mad scientist because of weird Javascript experiments that it does. It's one of the co-creator of Sveltelab and generally a huge nerd. Works as a SSE at Mainmatter.