JavaScript experts, mentors, speakers

Mo is the Head of Mobile and a Tech Lead at Theodo UK, having worked on several projects with startups and established enterprises to create cross-platform mobile application in React Native. He's passionate about React Native, MobileDevOps, and pushing the boundaries of combining code across web and mobile. Before joining Theodo, Mo was a full-stack developer at Nasdaq. He is a graduate from the University of Edinburgh.

Following a stint in data engineering, I have spent the past 6 years focused on web development. After building elegant & highly performant user experiences at Unsplash as the Web Team Lead, I have now shifted focus to developing SDKs & maintaining Mitosis @ Builder.io. I am currently the core maintainer of Mitosis, a trail-blazing open-source project that allows engineers to write their components once and build them for every web framework out there.

I am Ayoub Alouane, working as a DevRel and TechLead in Adservio, Moroccan coming from Africa, starting a new journey in France, as a Speaker and Trainer, I'm trying to build a consciousness about web performance in our community of devs.

Sergey is a web developer actively engaged in the development of technologies and tools for creating websites. One of the two co-authors of the BEM methodology. Currently he responsible for developer relations, hiring and training in his company.

Zan Markan is a developer advocate at CircleCI, on a mission to educate and inspire developers on the topics of CI/CD, DevOps, and software quality. Across his career he has worked in companies of various sizes, from enterprises to own startups, and everything in between, and across industries as diverse as retail, AI, and developer tools. He’s passionate about serverless technologies, mobile development, and developer experience. Outside of work, he enthuses over airplanes, craft beer, and the Oxford comma.

Josh Justice is the frontend architect of Chick-fil-A’s International division. He oversaw the development and release of the Chick-fil-A Canada app in July 2025. Over his 20-year software development career he’s specialized in mobile and frontend web testing approaches and tools as a way to deliver more sustainable software that meets user and business needs. He has shared what he learned about testing through consulting, blogging, and speaking at conferences such as Chain React and React Native EU.

Chris McCormick has been putting weird things on the internet since 1997. He writes code, makes music, doodles, does game dev, and builds online micro-businesses as a hobby.

The web, mobile, JavaScript, React/Native, CI/CD, process improvement, leading teams, remote work, and interviewing.

Ben cares about enabling developers, and supporting open source projects that push the Web forward (OpenJS Foundation, Node.js, tc39, Unicode Consortium). As a Technical Evangelist at DataDog, he’s helping devs create delightful experiences by using real user monitoring, and distributed synthetic testing. Ben has also led JavaScript meetups over the years (PDXNode, WebAudioPDX), and occasionally produces music.

Daria is a Speaker, Scrum Master, and Software Engineer at Workday where she builds consumer-grade web experiences for the enterprise user. When not coding, Daria is often found traveling, eating good food, and traveling to eat good food.

UI Engineer at Facebook. Author of Recoil.js

Marius is a Developer Evangelist at Twilio with a passion for exploring and sharing the latest in communication tech. He started as a UI developer in Silicon Valley, fell in love with JavaScript, and never looked back. Now based in Munich, he helps developers build cloud-native apps that redefine customer engagement. When he's not coding or speaking at events, you'll find him tinkering with Web 3.0 or dreaming up the next big prototype.

My name is Maria and I'm a software engineer at Microsoft in the TypeScript team. I mostly focus on its language support in Visual Studio, but I also work in the JavaScript project system and the integration of other language servers into the IDE (like ESLint and Angular). When I'm not debugging mysterious code I didn't write, I enjoy giving my 2¢ to open source.

Ruy is an open-source maintainer, Node.js contributor and member of the npm cli team at GitHub fostering community contributions while also working on tools that manages millions of JavaScript package installs everyday. He also speaks at conferences and meetups from time to time, you can find some of the presented content on Speaker Deck and Youtube.

Gert is an engineer at Chromatic, the company behind Storybook. He works closely with the rest of the Storybook team to envision and build the future of UI development and testing.

Tech leader leveraging AI to solve real business problems. Built and scaled AI solutions across multiple ventures - from custom agent architectures to enterprise RAG systems and local AI deployments. My biggest passion is teaching others how to leverage AI effectively. I run a private AI community and a YouTube channel breaking down complex AI concepts into practical, hands-on guides. My content mostly covers building AI agents and leveraging AI coding assistants in ways that actually scale.

Emanuele Stoppa is an Italian Senior Software Engineer, currently living in Ireland. Active contributor to the Biome and Astro projects. He has more than ten years of experience in the field. He has worked in many fields in the industry - fintech, travel, e-commerce, etc. - and is passionate about open source.

Naman works on design systems at Meta, maintains StyleX and is a contributor to React Strict DOM. Previously, he has dabbled in film-making in India, and spent a year working for a start-up in Spain.

Júlio de Lima is a specialist in Software Testing with 13 years of experience. Júlio has a Bachelor's Degree in Software Engineering, a specialization in Teaching in Higher Education and a Master's Degree in Electrical and Computational Engineering with a focus on Testing and Artificial Intelligence. He currently lives in Orlando, Florida. He serves as Principal QA Engineer at Capco, helping financial institutions establish robust and sustainable testing strategies. He uses his coding and architecture skills to contribute to software quality at all system layers. Júlio has contributed to the software testing community through his channels on YouTube, Instagram, Spotify, and in articles for technical and scientific magazines. He has experience as a speaker at international events and has trained more than 9,000 students through his online training in Portuguese.

I work in open source for the web! I'm an Astro core resident, Svelte and Vite core team member.

Thomas has contributed to dozens of enterprise Node.js services and has worked for a company dedicated to securing Node.js. He has spoken at several conferences on Node.js and JavaScript, is an O'Reilly published author (Distributed Systems with Node.js ), and is an organizer of NodeSchool SF.

Bree is a frontend Software Engineer turned Developer Advocate. She has a passion for coding and making technology education accessible to everyone. Bree creates technical content to help developers create and build autonomously.

In 2013, I graduated with a BFA and took my first job as a Junior Graphic Designer at a small, boutique ad agency. While there, my Creative Director warned me to never let anyone find out I could code, because if I did I'd be stuck doing it forever. I ignored his warning; it turns out he was completely right, but I've never been happier. I currently work as a developer advocate on a wonderful team where I help people build web applications in React, design and maintain their UI component libraries, and desperately attempt to stop back-end devs from writing any more CSS.

Negar is a senior software developer at Lightspeed Commerce, based in Montreal, Canada, with a focus on frontend development. With expertise in React, Vue, and a passion for CSS and web styling, she excels at simplifying complex concepts to make them accessible to all.