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!

Shai Reznik
HiRez.io, Israel
Shai Reznik or "That guy who always talks about testing..." is the founder of HiRez.io which focuses on cost effective testing training.
Being a leading part of the JavaScript community since 2012 and a Google Developer Expert, Shai has been speaking all over the world giving wild and entertaining talks.
His courses and training have helped thousands of developers enjoy a stress free life and while increasing their code confidence, quality and efficiency.
And his lectures have been viewed by over 170,000 developers (and probably a few random people as well!)
As a hobby, Shai does improv and standup comedy and love to tease friends with weird sweaters.
Nik Graf
Serenity, Austria
Nik is the founder of Serenity and is passionate about cryptography, CRDTs, GraphQL and React. He co-created several popular open source projects like DraftJS Plugins and Polished and participated in Stripe’s Open Source Retreat. In his spare-time he enjoys ski touring, cycling and organising the ReactJS Vienna meetup.

Michał Pierzchała
Callstack, Poland
Head of Technology at Callstack. Passionate about building mobile and web experiences, high quality JS tooling and Open Source for humans and agents. Core React Native Community & Jest contributor, creator of agent-device. Space exploration enthusiast.

Thomas Steiner
Google, Spain
Thomas Steiner is an Engineer at Google, focused on Web AI, WebAssembly, and Project Fugu. He's an alum of University of Lyon (Postdoc), Polytechnic University of Barcelona (Ph. D.), and University of Karlsruhe (MA). Thomas toots as @tomayac@toot.cafe.

Lorenzo Sciandra
Microsoft, UK
Lorenzo Sciandra is a Senior Software Engineer at Microsoft; since 2018 he is also a maintainer of react-native, and he’s been a releaser since 0.57.4. He cares a lot about mental health and open source, and won’t stop talking about either.

Ben Ilegbodu
Netflix, USA
Ben is a Christian, husband, and father of 3. He is also a Google Developer Expert in Web Technologies and an international speaker, with over 15 years of professional experience developing user interfaces. Currently, Ben is a Senior Software Engineer at Netflix on their TV Client Foundations team, focusing on TV UI developer productivity. He enjoys playing basketball & golf, DIY, watching movies, and tweeting (@benmvp) / blogging (benmvp.com) about his experiences with new technologies, especially with GenAI, TypeScript & React.

Maxim Salnikov
Microsoft, Norway
Maxim Salnikov is a tech and cloud community enthusiast based in Oslo. With over two decades of experience as a web developer, he shares his extensive knowledge of the web platform, cloud computing, and AI by speaking at and providing training for developer events worldwide. By day, Maxim plays a crucial role in supporting the development of cloud and AI solutions within European companies, serving as the leader of developer productivity business at Microsoft. During evenings, he can be found running events for Norway's largest web and cloud development communities. Maxim is passionate about exploring and experimenting with Generative AI possibilities, including AI-assisted development. To share his insights and connect with like-minded professionals globally, he founded and organized the inaugural Prompt Engineering Conference, the first of its kind on a global scale.

Chris Ferdinandi
The Vanilla JS Guy, USA
Chris Ferdinandi helps people learn vanilla JavaScript. He believes there’s a simpler, more resilient way to make things for the web. His developer tips newsletter is read by thousands of developers each weekday. Learn more at GoMakeThings.com.

Vanessa Raath
The Talent Hunter, South Africa
Vanessa is globally renowned for her contributions to the international Sourcing Community. She has delivered keynotes across three continents and trained teams from Auckland to Seattle.
Vanessa launched her Talent Sourcing Training business in early 2019 and has not looked back. She is a qualified teacher with experience in agency recruiting and internal talent acquisition (she loved both roles!). She now gets to combine her love of empowering others to do better, with her passion for recruiting through her own Online Academy.
She loves it when her training delegates experience that ‘light bulb’ moment as she knows that she has just changed someone’s career, for the better.
When Vanessa is not doing research for her training, recording content, or delivering a Keynote, you can find her at the Beach or in the South African Bushveld, taking photographs.

Aleksandra Sikora
EdgeDB, Poland
Aleksandra is a full-stack engineer currently working on developer experience at EdgeDB. Previously a tech lead for the Hasura Console and a lead maintainer of Blitz.js. Deeply passionate about open-source, TypeScript and dedicated to staying up to date with the JavaScript ecosystem. In love with all things climbing — hiking, via ferratas, rock climbing.

Pachi Parra
Abacate DevRel, Brazil
Pachi is a front-end dev turned DevRel. She a Co-Founder of Feministech, a community for Brazilian women and non-binary people in tech.
When she's not engaging on Twitter or streaming on Twitch, Pachi watches anime, reads too many romance novels, and Hypes people on the internet like that is her job.
Jon Meyers
Supabase, Australia
Jon Meyers is a Software Engineer, Educator and Hip Hop Producer from Melbourne, Australia. He's passionate about web development and enabling others to build amazing things! He is currently working as a Developer Advocate at Supabase, showing just how awesome databases can be!

Natalia Venditto
Microsoft, Spain/US
With a developer career that started in the early 2000's and lived through the evolution of web and cloud development, Natalia Venditto has worked in the roles of full-stack software engineer in enterprise, technical lead, and architect. She's a Google Developer Expert for Web and Angular, an open source contributor to Angular, Node.js and core maintainer for Web Fragments. She works in the role of Principal Product Manager at Microsoft, architecting, developing and managing developer tools for AI and JavaScript.

Shivay Lamba
TensorFlowJS Working Group Lead
Shivay Lamba is a software developer specializing in DevOps, Machine Learning and Full Stack Development.
He is an Open Source Enthusiast and has been part of various programs like Google Code In and Google Summer of Code as a Mentor and has also been a MLH Fellow. He is actively involved in community work as well. He is a TensorflowJS SIG member, Mentor in OpenMined and CNCF Service Mesh Community, SODA Foundation and has given talks at various conferences like Github Satellite, Voice Global, Fossasia Tech Summit, TensorflowJS Show & Tell.

Ivan Akulov
Senior Performance Engineer at Framer, Netherlands
Ivan is a:
• Google Developer Expert
• Sr Web Performance Engineer at Framer
• Prev. web perf consultant (Google, Toggl, Appsmith, etc.)
Outside of work, Ivan enjoys exploring modern art, discovering lesser-known electronic and techno artists, and obsessing over serif typefaces.

Lainey Feingold
Law Office of Lainey Feingold, USA
Lainey Feingold is a disability rights lawyer in the United States who has worked to make the digital world more inclusive since 1995 and negotiated the first web accessibility agreement in the United States in 2000. Lainey is an international speaker and the Digital Accessibility Resource for the global business to business non-profit Disability:IN. Lainey believes in collaboration over conflict. She developed and practices Structured Negotiation, a problem-solving strategy that avoids lawsuits and focuses on lasting change and relationship-building in the digital accessibility space. She is the author of Structured Negotiation: A Winning Alternative to Lawsuits.

Phil Nash
Developer relations engineer at IBM, Melbourne, Australia
Phil is a developer relations engineer for IBM and Google Developer Expert living in Melbourne, Australia. He's been working in developer relations for a decade, speaking at conferences since 2012, and writing JavaScript since before jQuery. Away from the keyboard, Phil enjoys travel, live music, and hanging out with his mini sausage dog, Ruby.

Alyssa Nicoll
Progress, USA
Alyssa is an Angular Developer Advocate for KUI and a Google Developer Expert for Angular. Her two degrees (Web Design & Development and Psychology) feed her speaking career. She has spoken at over 30 conferences Internationally. She streams weekly on the Angular Air podcast and Twitch CodeItLive channel. She enjoys gaming, scuba diving, and has a little one that fondly goes by "Mr. Milks".

Katerina Skroumpelou
Nx, Greece
Senior Engineer at Nx, open source contributor, GDE for Angular & Google Maps platform, WTM Ambassador, AngularAthens meetup co-founder. Mentoring women into tech, speaking about the cool things I do, climbing mountains and serving cats for life.

Sergio Xalambri
Daffy, Perú
I'm Sergio Xalambrí, an Argentinian web developer living in Perú and working at Daffy.org.
I'm a tech writer at sergiodxa.com and an Open Source author and contributor.
I'm an early supporter and contributor of Remix. Previous contributor of Next.js, SWR, and several other OSS projects.
I’ve also authored Remix Auth, Remix Utils, remix-i18next, useMutation, flagged, and more packages.

Andrey Sitnik
Evil Martians, Barcelona, Spain
With more than 20 years in open source, Andrey Sitnik created a few popular CSS tools (PostCSS, Autoprefixer), local-first framework (Logux), and many small libraries with millions of downloads (like Nano ID).


