JavaScript experts, mentors, speakers

David Mark Clements is the Platform Principal Architect of Pear Runtime by Holepunch. Writing JavaScript since '96, into Node.js from 0.8 (2012). Author, OSS Creator, Teacher, Consultant, Speaker helping to shape the ecosystem. Node Cookbook original and OpenJS Node.js Certifications lead. Driving innovation in the exciting peer-to-peer space, marking a new chapter in decentralized computing: pears.com.

Kathleen is a software engineer, designer, and conference speaker, who has deep industry experience that fuels her passion for making apps beautifully accessible. She’s a Color Module Specification Editor for the W3C Design Tokens Community Group. She is the Creative Director for the CXsisters network in her spare time and the best lanterne rouge cyclocrosser you’ll ever meet.

Sr. Developer Advocate at Docker.

I've been building web apps for 15 years, since my teenage years. I've painfully realised that some of the tools and conventions we take for granted make things much more difficult than they feel they "should" be. We spend most of our time doing stuff over and over again that doesn't really feel related to each individual app (persistence, permissions, shared state). But four years ago, I found out about a new abstraction (CRDTs) and a co-discovered a new way of building apps (local-first). Ever since I've been trying to wrap up this alien new tech in a familiar, ergonomic interface.

Hi! I’m a freelance web developer from France. After a career in the audio industry, I moved to the web because of how fast it allowed me to build, iterate, and ship great user experiences. React has been a major part of this success story. I’ve also been building and maintaining open-source software since 2007, from bare metal to the cloud, with libraries for React, Next.js, Fastify & Prisma. I love the open sharing of code we find useful, and the community it creates around it.

Working in the Developer Experience team at Cloudflare, Harshil enjoys sharing his learnings with the community. A JavaScript developer, open-source contributor, and a low-code enthusiast, Harshil loves experimenting with tech and building fun projects.

Akash is a frontend engineer at ElevenLabs who loves building innovative products on the web with great user experiences. He is currently building his video creation product – Slant it and also maintains various open-source projects like Blaze, Vyaakaran, etc. His recent fascination has been creating highly dynamic user interfaces and WebGL. Akash is always open to talk about engineering, UI design and building great products.

Omar is a graphics programmer working on mapping software currently based in Ithaca, NY. He is the co-creator of a desktop game, Move or Die. He has published over a dozen flash games that have been played millions of times. He loves the the universal accessibility of creating things for the web and enjoys writing computer graphics tutorials to help others create awesome stuff for the web.

Ioana Teleanu is an experienced design leader specializing in AI-powered products. Currently, she is the Lead Product Designer for AI at Miro. Previously, she worked at UiPath on a product called Clipboard AI, which was granted Time Magazine's 'Best Invention of 2023' award. Before that, she contributed to multiple products within UiPath and ING Bank and provided consulting and design services for several early-stage startups worldwide. She's the creator and instructor of one of the most successful courses on AI for Designers, in partnership with the Interaction Design Foundation. As a seasoned design educator, she has launched courses with Domestika as well as her own design bootcamp, all while mentoring and sharing her insights as a designer within her community, UX Goodies. Through the UX Goodies channels, which together have over 300,000 followers, and her podcast, Honest UX Talks, Ioana strives to deliver value to her audience. She focuses on teaching designers how to prepare for the AI revolution and remain competitive in a rapidly changing landscape.

Alex is Product Engineer at CodeSandbox, where he mixes his passion user experience with the interest in creating better tooling for developers. He is also an organizer for JSHeroes, one of the biggest JS/Frontend conferences in Romania.

I’ve always believed the best leaders don’t just build great products – they build great people. Over the past decade, I’ve led engineering teams at LinkedIn, Netflix, and now Salesforce, where I serve as Director of Engineering for our Analytics Agent org. My focus: transforming how we build intelligence, not just software. From architecting AI agents that power Tableau’s next-gen analytics, to driving cross-functional collaboration across global teams, I thrive at the intersection of vision, velocity, and impact. But my mission goes beyond what happens inside one company. Through Peak Potential, the career accelerator I founded, I’ve helped hundreds of senior engineers and leaders grow into staff-level and leadership roles. I’ve seen firsthand how the right mix of mindset, mentorship, and strategy can unlock careers – and change lives. Whether I’m coaching engineers to find their voice, scaling systems for millions, or running and scaling a business (yes, I believe in bringing heart to everything I do), I lead with purpose and a deep belief in the potential of people. If you're building the future of tech, growing into your next big role, or reimagining what's possible – let’s connect.

I'm a freelance web developer based in Zürich, Switzerland, and an open source enthusiast. In fact, I made over 7,000 commits on GitHub last year 😅. When I'm not busy building, you can find me literally running up mountains!

Building Storybook and Chroma.

Ujjwal is a Compilers Hacker at Igalia working on TC39 and V8, a Node.js Core Collaborator, a TC39 Delegate and an International Speaker. He loves to talk about open source software, decentralization, cryptography, JavaScript and web standards.

Bradley Farias has been in the Node.js community as a contributor, TC39 as a member, given workshops on Node.js, and worked on OSS projects as well. He is actively interested in pushing programmer experience APIs for developer tools. He is currently invested in security tooling and experiences which involves not just research into attacks but how to make programmers' experience with security more enjoyable.

Atila is a self-taught developer and content creator who shares knowledge as a mean to learn things better. He's being working with web developments for sometime now. In Brazil and in Europe. Either speaking at conferences, recording videos on his youtube channel, or writing articles on Smashing Magazine, Dev.to, and his personal blog.

Jessica is a Developer Advocate at LaunchDarkly, where she speaks about change and writes about the human implications of engineering decisions. She writes for a selection of tech publications and works as a co-organiser of DevOpsDays London and the regular meet-up group DevSecOps London Gathering. She also works with Coding Black Females to improve equal and equitable representation within the technology industry.

Building machines @statelyai Ex @epicgames Coach @mentorcruise ❤️ Statecharts, Finite State machines and XState

GDE for Web, speaker, host of the "Inclusive Pineapple" podcast, organizer of MinskCSS, MinskJS and Accessibility Club Minsk. An unstoppable teacher in digital accessibility courses https://accessibilityunity.com/ 🙂

Aurora Scharff is a software developer and Microsoft MVP from Norway with a bachelor's degree in Robotics and Intelligent Systems. She has a solid foundation in engineering mathematics, robotics, algorithms, data structures, and computer architecture. Aurora began her career at a financial technology startup and now serves as a consultant at Crayon Consulting. She focuses on web development and has extensive experience in React and Next.js and active use of React Server Components. Aurora shares her knowledge through workshops, technical blog posts, social media, demo applications, and supporting fellow developers, and she regularly presents internationally at recognized conferences to contribute to the global developer community.

Paul has been in the gaming industry for the better part of two decades, and has always been interested in the intersection of game design and new tech. He is CTO / Co-founder of OPGames, an open-source game platform company building tools to help game developers navigate this new landscape called web3. Paul is also the co-founder of Altitude Games, a mobile and blockchain gaming company based in the Philippines. He currently leads the KERNEL Gaming Guild, a community of the most talented individuals in the blockchain space. He has been writing and coding on web3 since 2017, and most of his work can be found online at polats.com.

Alexandra Spalato is a DevRel Engineer at Storyblok, specializing in JAMstack & headless architecture. With a background in freelance dev & entrepreneurship, she brings a unique perspective to successful web projects. Alexandra drives progress in tech industry through speaking at conferences & empowering developers.

Baptiste is the CEO and co-founder of Crisp, a customer messaging platform used by 300 000 companies. I started coding when I was 12, and made many different projects before co-founding Crisp in 2015. Some worked and many failed. I still code a lot and have a full-stack approach, from code, UI, UX, growth hacking to customer support.

Vanessa is a Web Developer. She has an M.Sc in Media Informatics with a focus on Human-Computer-Interaction. Vanessa is the Lead Frontend Developer at Zavvy. She is a co-host of the podcasts expect(Exception), Working Draft, and Ausbaufähig. Vanessa is a Chapter Leader of the Front-end Foxes helping women with their first coding and speaking experiences. She was a member of the JS Kongress Program Committee.