JavaScript experts, mentors, speakers

Explore personalities and their talks, workshops, videos, and articles. While we focus primarily on JavaScript and frameworks like React, Vue, Svelte, and Node, you may find experts on other fields on our Portal. To name a few – Testing, DevOps, Machine Learning, and many more!
Lauren Etheridge
Lauren Etheridge
Sanity.io, USA
Web Developer and IT Analyst with a demonstrated history of providing development, data analysis, and communications support in the higher education, non-profit, and government sectors. Skilled in JavaScript, PHP, and SQL and a passion for DEI, community-based education/apprenticeship, and organizational behavior.
Simon Stern
Simon Stern
Apricot Studios, Canada
Simon is a full-stack developer and React Native specialist with a keen interest in experimenting with bleeding edge software, building cool products, and sharing knowledge. Over the years he’s had a diverse set of experiences ranging from mobile apps, full-stack development, web3, AI & LLM’s. His clients have won awards in the healthcare space, been featured at the Cannes Film Festival, and were a partner in the Dubai 2020 Expo. Recently Simon has been exploring the frontier of the future as a member of the Network School in Forest City, Malaysia.
Zhou Fang
Zhou Fang
ByteDance, China
Developer of lynx-ui for the Lynx family of technologies. Cat enthusiast. Focused on building purr-fect components for Lynx.
Frédéric Harper
Frédéric Harper
TinyMCE, Canada
Frédéric Harper is a seasoned Developer Advocate with over 20 years in tech, currently Senior Developer Relations Manager at Tiugo Technologies specializing in TinyMCE rich text editor. Fred has held developer advocacy roles at industry giants such as Microsoft, Mozilla, Fitbit, and npm. He's spoken at hundreds of events globally and authored a book on personal branding for developers at Apress.
Gunj Joshi
Gunj Joshi
stdlib, India
Mentorship available
Gunj Joshi is a core contributor to stdlib, the JavaScript standard library for numerical and scientific computing. His work spans special mathematical functions, FFT implementations, and automated generation of high-performance packages at scale. A Google Summer of Code contributor and mentor, he has spoken at JSNation (US & EU) and FOSSASIA. Previously, he worked as a Quantum Research Intern at IBM and an open-source intern at Quansight, and currently works at a high-frequency trading firm.
Nasim Selmani
Nasim Selmani
deidei, Finland
Diversity, Equity & Inclusion | People Operations | Inclusive Leadership | Intersectionality | Producer
Lena Reinhard
Lena Reinhard
Executive & Leadership Coach, Germany
Lena Reinhard (Website, LinkedIn) is an engineering leadership coach, mentor, and organizational developer supporting technology leaders in growing themselves and succeeding in the complexity of engineering organizations. Previously, Lena served as VP Engineering with CircleCI and Travis CI, and a SaaS startup co-founder & CEO, and has dedicated her career to helping leaders and their organizations excel in times of high change and challenging markets. She has worked with a broad variety of companies at all stages, from startups pre-founding and bootstrapped, scale-ups, to late-stage/pre-IPO and VC-funded ventures, to corporations and NGOs. Find her writing on leadership and more about her work at lenareinhard.com.
Nicolas Carlo
Nicolas Carlo
Freelance Web Developer, Canada
Fullstack TS dev. I like mending legacy code. I organize a few meetup groups in Montréal, including React MTL and Software Crafters.
Jannik Sommerfeld
Jannik Sommerfeld
Team One Developers GmbH, Germany
As a software developer with a rich background in successful agile projects, I value constructive, harmonious, and proactive communication. I enjoy the opportunities and freedoms that the ECMAScript world offers. At the same time, I embrace self-chosen guidelines that we can establish through the use of TypeScript. I am 30 years old, father of a new born and I am excited to teach and to learn.
Joanna Otmianowska
Joanna Otmianowska
Famly, Poland
I'm a frontend developer specializing in JavaScript and React, with a passion for crafting seamless user experiences. Beyond coding, I'm a content creator who loves exploring topics like productivity, creativity, and balancing life as a tech professional and a parent. I empower women in tech through a thriving Facebook group and share insights via my newsletter and podcast.
Jaxon Repp
Jaxon Repp
HarperDB, USA
Jaxon has 25 years of experience architecting, designing, and developing enterprise software. He is the founder of three technology startups and has consulted with multiple Fortune 500 companies on IoT and Digital Transformation initiatives. A partially-reformed developer, he understands what it’s like to wrestle with technology instead of benefiting from it, and believes passionately that if the Jetsons never had an episode where a config file error brought down the food-o-matic, it surely should not be a problem now.
Benjamin Schachter
Benjamin Schachter
treasure it, USA
Benjamin Schachter is a software engineer based in Brooklyn, NY and founder of treasure it, a platform to get and give things for free. He loves React Native and Typescript.
Max McCrea
Max McCrea
Monadical, USA
Max is the technical co-founder of Monadical, a software development consultancy focused on emerging technologies and AI solutions, and Developer Capital, an early stage AI investment corp.
Thomas Wiss
Thomas Wiss
Neo4j, Sweden
Thomas is a software engineer in the GraphQL team at Neo4j where he usually works with Javascript, Typescript, Cypher, and of course GraphQL. Prior to joining the GraphQL team, Thomas was part of the team who builds Neo4j’s graph visualization product, Bloom. Whenever he closes the laptop for the day he makes sure to get out in nature, do all kinds of sports and read a good book.
Jean Duthon
Jean Duthon
Babbel, Germany
Jean grew up in France, where he studied computer science and got his master’s degree from the Université de Technology de Compiègne, where he grew fond of web technologies. He moved to Berlin in 2016 and started working with vanilla JavaScript, jQuery, and Angular1 until he discovered React and thought, “Wow, this is how web apps should be built.” Those days he worked mainly with React at Babbel (the best learning language app! 😜)and loves creating enticing user experiences on the web, he has a soft spot for animations and delightful interactivity. In his free time, he loves to cook, make cocktails (ask for advice at your own risk), and play escape/board games.
Karly Lamm
Karly Lamm
Aviron Software, USA
Karly Lamm is a Senior Mobile and Full Stack Web Engineer, currently serving as the Director of Strategic Software Solutions at Aviron Software. She has helped startups scale their products from early MVPs to acquisition, including one later acquired by Walmart. Karly specializes in JavaScript technologies with deep experience in React, React Native, and Angular. She is a strong advocate for accessible and inclusive code, with a passion for building products that work for everyone. In her current role, she partners with startups to design scalable solutions, mentor engineering teams, and implement thoughtful UI and accessibility practices that align with real-world user needs.
Karen Li
Karen Li
GitHub, USA
Karen Li is a concert pianist turned elementary school teacher turned software engineer. She is currently a software engineer at GitHub's npm team. Aside from engineering work, Karen blends education and technology by sharing her experience with the community. Her motto, "I invest in brains" captures her journey from teaching to tech empowerment.
Noam Zingboim
Noam Zingboim
PayPlus Back End Developer, Israel
Noam Zingboim is a seasoned software engineer specializing in Node.js, JavaScript, and system design for scalable backend services. With experience ranging from architecting new products to maintaining critical systems, he focuses on building maintainable, reliable, and high-performance solutions.
Amber Shand
Amber Shand
She Bytes Back, UK
Amber is an international speaker and founder of She Bytes Back. She’s racked up 90+ talks in the last three years, loves making audiences laugh, and is usually the loudest cheerleader in the room (in the best possible way). When she’s not on stage, she’s building She Bytes Back, hosting events, and finding new ways to make confidence contagious.
Vadim Zhamkov
Vadim Zhamkov
Nebius, Netherlands
Vadim Zhamkov is a Fronted Architect with 14+ years experience in web development. Organiser of AmsterdamJS, React Amsterdam and AI Tinkerers Amsterdam meetups. Former organiser of MoscowJS meetups.
Zoe Steinkamp
Zoe Steinkamp
InfluxData, USA
My name is Zoe Steinkamp and I am a Developer Advocate for influxData. I was a front end software engineer for over 6 years before I moved into a developer advocate role. I have been with InfluxDB for over 3 years and i look forward to sharing my knowledge of the platform and databases. I enjoy learning about awesome new technologies and doing at home tech projects to help make my life as well as other peoples lives easier. My passions besides new technology include traveling and gardening.
George Kouzmov
George Kouzmov
BlackRock, UK
George is a TechLead @ BlackRock with 12+ years of experience in the FinTech industry. He has architected, designed and build various systems, from data warehouses to large MFEs. He lives and breathes in the full stack space between Data and UX. Proven ability to architect, design, and implement complex solutions while fostering high-performing engineering cultures.
Daniel Espino García
Daniel Espino García
Mattermost, Spain
Fullstack Software Design Engineer at Mattermost. He has helped with the re-architecturing of the new version of the mobile app, written in React Native. Confident with React, React Native and Go, and always happy to learn new things. Fun fact: studying psychology for fun.
Nicolas Gallagher
Nicolas Gallagher
Meta, USA
Working on @reactjs for the web. I currently work at Meta on cross-platform React frameworks. Our goal is to improve engineering efficiency and product quality, to reduce product time-to-market, and to produce high-quality native user interfaces from existing web code. The software we work on is used by products like Facebook, Instagram, Messenger, Oculus, and Workplace.