JavaScript experts, mentors, speakers

Malte Ubl is the CTO of Vercel. He leads the development and delivery of the company’s suite of tools and features to enable developers to create at the moment of inspiration. Prior to joining Vercel, Malte was the Principal Engineer for Google Search Rendering and Engineering Director for Google’s Search on Laptops, Tablets, and Desktop. Malte has also created the frontend infrastructure for a number of Google Web Apps and the web at large. He is also the founder and curator of JSConf EU.

Shu is a designer and engineer at Vercel building Next.js. He is the creator and maintainer of OSS like SWR and Nextra. Besides JavaScript, he also enjoys generative art and algorithm challenges.

Andreas Müller is a Principal Research SDE at Microsoft, where he works on the interface of the Data Science ecosystem and cloud infrastructure. He previously held positions as Associate Research Scientist at the Columbia Data Science Institute and as a Research Engineer at the NYU Center for Data Science. He is one of the core developers of the scikit-learn machine learning library, a member of the scikit-learn technical committee, and the author of the book "Introduction to machine learning with Python". His work focuses on practical aspects of machine learning and the development of user-centric machine learning software.

Ben is a full-stack developer, open source maintainer, and whiteboardist making the web a little better. You'll find him hacking on warp.dev or sharing bite-sized learnings on YouTube.

Charlie is a senior research engineer, the author of Practical Machine Learning in JavaScript with TensorFlow.js and overall, a creative technologist. In her spare time she explores the field of human-computer interaction and builds side projects using machine learning, AR/VR, hardware and creative coding.

Tracy has been a startup founder for the past 16 years and is an angel investor focused on developer tooling. Her passion is helping entrepreneurs with go to market / marketing, development (management), and open source strategies. She loves talking about figuring out tactical ways to go to market, expand sales and drive customer acquisiton through automation. Tracy also is a JavaScript developer, on the RxJS core team, a Google Developer Expert, a Github Star, and a Microsoft MVP. She spends most of her time in the open source ecosystem, and building products and communities in this space. After her last exit in 2015, she started a consultancy called This Dot Labs, which serves clients such as Stripe, Xero, Docusign, Twilio, Roblox, Google, Cloudinary, Sentry, and more, but also helps startups get off the ground from POC to implementation. She is also a frequent keynote speaker at conferences. You can find her on Twitter @ladyleet or at thisdot.co

Jimmy is a software architect and consultant. He created the OSS libraries AutoMapper, MediatR, and Respawn. He helps teams build systems faster, better, and more maintainable.

Seasoned software engineer, educator, and a GitHub star passionate about technical education. I enjoy making learning simple through hands-on teaching and a project-based approach. Five years ago, I started the JavaScript Mastery YouTube channel, which became one of the largest technical education YouTube channels for intermediate to advanced developers in the JavaScript ecosystem.

Feross is founder and CEO at Socket (https://socket.dev), a developer-first security platform. Feross has worked in open source software for 10+ years writing some of the most-downloaded JavaScript packages. Feross is a lecturer at Stanford where he teaches CS 253 Web Security. Socket makes a developer-first security platform that prevents vulnerable and malicious open source dependencies from infiltrating your software supply chain. Thousands of organizations in every industry use Socket to safely discover, audit, and manage OSS at scale.

Maggie is a designer-developer-anthropologist-hybrid at egghead.io. She spends her time designing visual metaphors for invisible programming concepts, helping developers explain their wildly abstract thoughts, and overanalysing the JavaScript community’s strange cultural beliefs. She's also a digital gardening enthusiast and a Marmite lover.

Shedrack is a Developer Advocate and Technical Writer from Lagos, Nigeria. He loves community building, open source, and a has knack for improving developer experience of developer focused products.

Saurav Jain, Apify's Developer Community Manager, excels in community building and devrel. With a history of growing Amplication's community to 40K, he now enhances Apify's developer engagement. An international speaker, he has contributed to PyCon Ireland, PyCon Italy, and more. His work bridges developers globally, fostering innovation and collaboration within the tech ecosystem. His expertise and passion for technology make him a pivotal figure in nurturing tech communities.

Francesco D'Alessio is a software reviewer that focuses on productivity tools. Building Keep Productive for over 10 years into a YouTube channel with over 400K+ subscribers, he now builds Tool Finder with co-founder Karl Hadwen to help people find tools.

Chris Nwamba is a Senior Developer Advocate at AWS focusing on AWS Amplify. He’s also a teacher and with years of experience building products and communities.

Tejas Kumar is an international keynote speaker, best selling author, and host of the developer-loved ConTejas Code podcast with an engineering background spanning 23 years, from design to frontend to backend to devops. Today, Tejas shares talks at large with developer communities worldwide, equipping them to do their best work.

Erick Wendel is a Node.js Core Team Developer, Keynote Speaker, and professional educator. He's delivered over 100 tech talks in 10+ countries and has been recognized as a Node.js Specialist with awards from Google, Microsoft, and GitHub. With his company https://erickwendel.com, Erick has trained over 100K people worldwide.

Cassie is an international speaker, and creative developer with a background in graphic design and motion design. She got started with coding back in the days of Myspace and Neopets and is on a mission to make the web more whimsical again.

Lin Clark is a Senior Principal Engineer at Fastly, focusing on WebAssembly. She is a co-founder of the Bytecode Alliance, which is driving WebAssembly’s outside-the-browser ecosystem forward. Many people know her through her long-running series, Code Cartoons, which helps people make sense of various WebAssembly standards and the ecosystem's overall direction. Previously, she has worked on web standardization and devtools at Mozilla, helped people understand the JS ecosystem at npm, and was a Drupal core module maintainer.

Sara is a developer relations engineer at Orama. Author of The Opinionated Guide to React. Open Source enthusiast. Conference Speaker. Talk to her about Retro Games or Airports.

Jamon is a software developer, business owner, husband, and father of four, located near Portland, Oregon, in SW Washington state. He is one of the co-founders of Infinite Red, Inc., a fully remote React Native app development studio located in the USA and Canada.

Currently Head of AI at Cline. Previously Knowledge Graph team at Meta.

Senior UX Engineer @Microsoft with over 19 years of experience. He actively shares insights on software development, open-source contributions, and emerging technologies. His work reflects a commitment to clean code, continuous learning, and community engagement.

Daniel Ávila is a Chilean AI Software Engineer and open-source builder based in Grand Rapids, MI. He is the creator of Claude Code Templates (aitmpl.com), a component library for Claude Code with 111K+ npm downloads and 21K+ GitHub stars, featured in Anthropic's official documentation and part of the Claude Open Source Program. He is AI Tech Lead at Hedgineer, where he builds enterprise agentic systems for hedge funds in New York. Daniel has presented at major tech events across the US, Spain, Brazil, Peru, and South Korea.

Louëlla Creemers is a software developer from the Netherlands focusing on .NET, C#, and modern web technologies. She is active in the developer community as a teacher, content creator, blogger, and public speaker, with a focus on making advanced or new topics accessible to developers at all stages of their careers. Online, she enjoys sharing educational content and the occasional joke with an audience of over 30,000 developers. Through her community involvement, Louëlla was awarded the Microsoft MVP title in 2023 in the Developer Technologies category. She is also a board member of the .NET Foundation and a mentor for her local CoderDojo.