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!
Morten Barklund
Morten Barklund
Self-employed, Denmark
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 KP
Sangeetha KP
Amazon, USA
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.
Eric Burel
Eric Burel
LBKE, France
A professional trainer from France, teaching fullstack web development and LLM development. Contributor to the State of JS survey.
Leo Picado
Leo Picado
Zenjob, Germany, Berlin
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.
Riccardo Erra
Riccardo Erra
Figma, UK
Riccardo Erra is a developer advocate at Figma. He joined Figma as their first developer advocate in EMEA. Before joining Figma he worked as a software engineer for 15 years with the last few years spent as a design system engineer. At Figma he's empowering engineers to make the most out of the various Figma's tools tailored to developers.
Avital Tzubeli
Avital Tzubeli
Vonage, Israel
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.
Max Kless
Max Kless
Nx/Polygraph, Germany
Max is a senior engineer at Nx and Polygraph - he's been thinking about building dev tools for years - before and after AI agents. When not digging through code, he spends his time travelling, reading sci-fi and listening to music.
Tathagat Thapliyal
Tathagat Thapliyal
Simbian, India
Mentorship available
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.
Chris Smith
Chris Smith
Retool, USA
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.
Interests:
Brendan Coll
Brendan Coll
XBOW, UK
Research Engineer at XBOW, and creator of Miniflare. Loves making developers' lives easier.
Chandra Carney
Chandra Carney
Freelance consultant, USA
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.
Interests:
Wyatt Johnson
Wyatt Johnson
Vercel, Canada
Full-stack developer with a security first mindset. Working on Next.js at @vercel. Previously @voxmedia, @coralproject.
Ben Hagan
Ben Hagan
PolyScale, USA
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.
Bjarke Felbo
Bjarke Felbo
Dusk, Denmark
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.
Akbar Mirza
Akbar Mirza
Figma, USA
Akbar Mirza is a Developer Advocate at Figma, where he helps designers and developers speak the same language and build together more seamlessly. With a background that zigzags through UX, data science, and software engineering, he’s happiest at the crossroads of design and development. Before joining Figma, Akbar built civic tech apps like MigraCam to help people in emergencies, worked on improving design tools at Google, and taught students how to code their first iOS apps. He’s driven by curiosity, community, and the belief that good tools can make creative work feel a little more human.
Mikhail Levchenko
Mikhail Levchenko
Developer Productivity Engineer, Serbia
Accomplished software engineer with over 7 years of experience, transitioning from a seasoned Android developer and Techlead to a Developer Productivity Engineer. Passionate about streamlining development processes and enhancing team performance, Mikhail has led various initiatives to elevate developer satisfaction and productivity.
Daphne Oakes
Daphne Oakes
Grow Therapy, USA
Daphne is a comedian, software engineer, and conference speaker. She is on a mission to bring comedy into tech and has brought to conferences: a "He-Man" sing-along, AI-themed cha-cha slide, and a Pokemon speaker introduction. She's an engineer at Grow Therapy and previously worked at Lyft, Shopify, and Yelp. Based in Seattle, she enjoys improv, sketch writing, and hostel-hopping around the world. What makes her happiest in life is meeting people. So, if you want to yap with her all day, reach out to her through social media!
Marko Letic
Marko Letic
Fused, Serbia
Marko is a software engineer and data visualization enthusiast specializing in geospatial technologies. Currently a Founding Engineer at Fused, he builds interactive geospatial applications using React and deck.gl. Previously, he was a Senior Software Engineer at Foursquare and a Tech Speaker at Mozilla. As the Director of Armada JS, Serbia’s largest full-stack JavaScript conference, Marko is dedicated to community building and knowledge sharing. He holds a Master’s degree in Computer Science and is pursuing a PhD in data visualization.
Amber Vanderburg
Amber Vanderburg
The Pathwayz Group, USA
Amber Vanderburg is a multi-award winning businessperson, keynote speaker, author, and founder of the international learning development company, The Pathwayz Group, which has led 800,000+ learners in more than 75 countries in action-focused learning journeys. Amber's history in talent development includes authoring top-reviewed online learning courses for platforms such as LinkedIn Learning, Lecturio, and Pluralsight, acting as Director of a national education leadership company, and coaching with professional sports team academies in Asia. In 2022, she published her first business adventure book "Uniquely Better" about building higher team performance.
Amanda Lewis
Amanda Lewis
Google Cloud, USA
Amanda Lewis is a Developer Relations Engineer on the DORA Advocacy team at Google Cloud. She leads the development of the DORA Community of Practice and is a co-author of the 2023 Accelerate State of DevOps Report. Her career has been spent building connections across teams to develop e-commerce platforms, content management systems, observability tools, and support developers. She helps teams develop a culture of continuous improvement to deliver improved well-being and better outcomes for the business.
Billy Purvis
Billy Purvis
NewDay, UK
Billy is an engineer at NewDay building React apps and component libraries. He's an advocate for accessibility, testing, and design systems. He also names all his libraries after vegetables, much to the confusion of his co-workers.
Jon Jensen
Jon Jensen
Netflix, USA
Jon Jensen is a Senior Software Engineer at Netflix working to improve the developer experience for other UI engineers. Previously he worked at Amazon and Instructure, working on all things software-y. In his spare time he's usually in the mountains or playing with his kids.
Johannes Goslar
Johannes Goslar
Synthesia, Germany
Johnny loves (board|electronic) games, programming with a lot of parentheses and cycling. After receiving his MSc from Oxford, a short stint in San Francisco, an even shorter in London, he ended up home near Frankfurt. He famously got fired from Twitter in 2022, worked as Staff Engineer for Sizzle.gg afterwards and is now building the editor at Synthesia.