JavaScript experts, mentors, speakers

Michael is a full-stack engineer and designer with over a decade of commercial experience in multiple web and mobile technologies. An advocate and frequent contributor to open source software, Michael is the author of the ionic/vue library which allows developers all over the world to write Ionic mobile apps using the Vue framework. In his free time, he enjoys game development, contributing to Open Source, hardware modding and creating projects in new languages.

Konstantinos is as a Software Tech Lead at monday.com on the Client Foundations team, building developer tools and enabling teams with a microfrontend architecture. When he’s not architecting scalable frontend solutions or optimising developer workflows, he’s sharing microfrontend best practices, contributing to the developer tooling ecosystem, and helping teams navigate the complexities of distributed frontend architectures.

Misha Kaletsky is an active open-source contributor, known for projects like expect-type, trpc-cli and eslint-plugin-codegen. Misha has specialized in C#, F# and TypeScript at Microsoft, since building out multiple healthcare startups from scratch, almost exclusively in TypeScript. He has a particular interest in developer productivity and type safety for large-scale applications. Misha lives across the river in Brooklyn with his wife and one-year old son (with a second due a few weeks before JSNation!).

Frans is Chief Data Officer at ixpantia. He combines a diverse skill-set, that includes business analysis, data analysis and enterprise architecture, with more than 15 years of experience to help organizations respond to their data driven innovation needs quickly and effectively. Frans has a PhD in biology from the University of Amsterdam and has taught at universities in Europe and Latin America. As a consultant he has facilitated in-company training on diverse topics, including data driven innovation, applied statistics, statistical programming and machine learning.

Raanan Weber is a JavaScript and TypeScript ("Web"?) developer, currently working at Microsoft as Babylon.js Web Tech Lead and is one of its core contributors, with emphasis on WebXR and the engine's build system. With a passion for open source, he constantly contributes to Babylon.js and various other Open-source projects. He lives in Berlin, Germany, where they find joy in playing the guitar and exploring Berlin's forests with his family and dog.

Hi, I’m Adrien 👋. I’m a Senior Software Engineer at Nagomi. I previously lead the Micro Frontend effort at Cazoo (and wrote about it!). I’m passionate about building things, such as theatreninja.com a theatre ticket website, clashofstats.com, a statistics tracker for Clash of Clans ⚔️, Vue GWT a library that lets you build Vue.js components in Java ☕️, and more recently Tiny Frontend an open source Micro Frontend architecture library 🐰. I live in London with my partner. In my free time, I love going to see a show in the West End, playing some Beat Saber or reading the latest book from Brandon Sanderson.

Peter Eijgermans is a long-time software developer and an adventurous and passionate CodeSmith Frontend at Sopra Steria (Ordina). He likes to travel around the world with his bike. Always seeking for the unexpected and unknown. For his job he tries out the latest techniques and frameworks. He loves to share his experience by speaking at conferences all over the World and writing for the Dutch Java magazine and DZone. He believes that you as the front-end developer are the spider in the web to bring the user, the team and the product together.

Johnny is a full-stack developer who loves pushing what's possible with software products. He specializes in building browser extensions that don't break user experiences.

Stepan Suvorov has over 15 years of experience in web development, information security, and scaling tech startups. As the CTO at Studytube, he has led the AI-driven transformation strategy, introducing innovative features. Stepan is an expert in applying AI, particularly tools like ChatGPT, to streamline software development, from code generation and debugging to documentation and code reviews. A Google Developer Expert and frequent conference speaker, he is passionate about teaching developers how to use AI to boost efficiency and deliver high-quality results in real-world applications.

Principal software engineer at Deno, previously co-founded GitBook.

Morten is a web developer of 20+ years, and a React expert in the last 6. Morten co-authored React Quickly, 2nd Ed, published early 2023 at Manning Publications. Working as a freelance consultant, Morten has been helping agencies and companies of all sizes improve their React codebases. Also, he actually enjoys refactoring! Life-wise, Morten is an ultrarunner, board game enthusiast, and corgi fanatic.

Sangeetha is a Software Developer Engineer with 4 years of experience working with Alexa Companion App and the Amazon Shopping App at Amazon HQ. She is a Tech enthusiast and can be seen giving talks / workshops in universities/meetups in the United States.

My name is Dmitry Kudryavtsev. I'm Software Engineer. I'm passionate about programming, and started to write software from the age of 14 using Pascal, C and PHP. I've touched nearly every programming language out there, and right now I'm passionate about JavaScript (well, I prefer TypeScript) and Rust. I have more than 11 years of professional experience, and worked in multiple companies (including Autodesk), occupying different titles such as: Senior Software Engineer, Tech Lead, Consultant. In my free time I like to write code and experiment with new technologies, get outdoors, read, focus on self improvement and productivity as well as boxing and staying healthy.

A professional trainer from France, teaching fullstack web development and LLM development. Contributor to the State of JS survey.

Research Engineer at XBOW, and creator of Miniflare. Loves making developers' lives easier.

Wearer of many hats, former designer, full-stack developer, teacher, iOS Developer. Now: Staff Sotware Engineer. Talk to me about coffee, dogs, pro-wrestling and quirky language topics.

Chandra has spent the last 9 years building accessibility program strategies at various organizations and launched those companies’ accessibility efforts, including the New York Times, Etsy, and Aetna Digital.

From a young age, Avital was fascinated by the world of computers and solving problems with them. She followed a path of backend development, storytelling, and a little graphic design, before discovering the world of DevRel. Today Avital is the Regional Developer Advocate at Vonage TLV, where she gets to combine her passions for code, creative thinking, and facilitating good stories.

Ben is the Founder of PolyScale.ai where he works to make scaling databases globally, simple for developers and architects. Ben has been working with distributed systems and big data for over a decade, leading Solution Architecture teams at companies such as DataSift, Elastic and Rockset.

Doing my best to boost JS game development by organizing React Jam and a $100k grant initiative for open-source games. Previously researched ML algorithms at MIT, incl. making an open-source AI algorithm now used to serve 300M+ daily users. Awarded Forbes 30 under 30 and Marvin Minsky fellowship.

Chris Smith is a developer evangelist at Retool, where he helps developers to rapidly code internal tools. He is a hacker at heart ever since learning QBASIC in middle school and is passionate about the power that learning to code brings to an individual. He’s worked for 6+ years in the world of low-code tools to empower developers to do more in less time. He’s passionate about visual abstractions and ways of quickly conveying and understanding complexity. Prior to Retool, Chris worked at Tray.io, JunoVR, Segment, and National Instruments.

I build engineering teams and frontend systems that scale - spent years doing it at some of India's most demanding product companies. Currently heading frontend engineering at Simbian AI, where I'm building the UI layer for security infrastructure designed for the agentic era. That means shipping fast, maintaining zero tolerance for performance debt, and making complex security workflows feel intuitive, all at the same time. I led the full migration from Django to React, cut load times by 83%, and introduced AI-native development workflows across the engineering team. Before Simbian, I led web engineering at CRED, owning frontend delivery across multiple pods, scaling CRED Garage from 2M to 10M+ customers, and building platform systems that other teams depended on. I'm as invested in the team as I am in the code. I mentor engineers toward ownership, not just task completion. I've created courses, spoken at conferences, and consistently tried to give back to the community that shaped me. What drives me: systems that last, teams that own their work, and products that actually solve hard problems.

Creator of Best of JS and JS Rising Stars projects.

Full-stack developer with a security first mindset. Working on Next.js at @vercel. Previously @voxmedia, @coralproject.