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!

Ian Johnson
ObservableHQ, USA
Ian Johnson is a data visualization developer and software prototyper at ObservableHQ. Ian has been turning data into pixels for more than 15 years, cheering on the developments in web standards and open source technologies that enable ever richer forms of communicating data.
Ian helped found the Bay Area D3 User Group, a community of thousands of d3.js practitioners, to learn from other like-minded folks. He has prototyped software and visualizations for companies, researchers and causes. He enjoys sharing his understanding and is often tweeting about data visualization and the creative process.

David Rousset
Microsoft, France
David is a Senior Program Manager in the Developer Division at Microsoft, working on the end-to-end dev experience for Teams & Azure Communication Services. He’s also the co-creator of Babylon.js. Even if he’s stopped contributing to the project a couple of years ago, he’s still passionate about WebXR and uses it to fun experiments. David is also interested in music composition, quantum computing & video gaming.

Aleksandra
The Guild, Poland
Aleksandra is a software engineer based in Wrocław, Poland. She's worked as a full-stack developer with many different languages such as Elixir, Golang, Python, and TypeScript. She was previously a tech lead for the Hasura Console, and now she's a lead maintainer of Blitz.js.
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.

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.

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.

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.

Dan Shappir
Sisense, Israel
Dan Shappir is Principal Engineer at Sisense. Previously he was Performance Tech Lead at Wix and at NEXT Insurance. Dan has over 25 years of software development experience, and has worked on systems ranging from multiuser games to missile trajectory simulations to designing and building large scale Web applications. He is a frequent speaker at technical conferences, a host on the popular JavaScript Jabber podcast, and an Invited Expert on the W3C Web Performance Working Group. Dan holds an MSc in Computer Science.

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.

Ben Ilegbodu
Stitch Fix, USA
Ben is a Christian, husband, and father of 3, with 15 years of professional experience developing user interfaces for the Web. He currently is a Principal Frontend Engineer at Stitch Fix on their Frontend Platform team, helping architect their Design System. Ben also is a Google Developer Expert, Microsoft MVP, and enjoys playing basketball, DIY, watching movies, and tweeting (@benmvp) / blogging (benmvp.com) about his experiences with new web technologies.

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.

Boris Tane
Baselime, UK
Boris is the founder of Baselime. Before this, he worked on back-end systems and infrastructure at multiple startups, where he was drawn to cloud-native and serverless technologies. He always ended up being the guardian of the logging and monitoring systems in the teams he joined. Now, he’s helping serverless teams automate their observability configurations with Observability as Code.

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.

Mateusz Burzyński
Stately, Poland
My name is Mateusz Burzyński and I'm a JavaScript developer focused on React ecosystem. I'm also a big OSS enthusiast. I believe that node_modules is not a black box and I dive into it frequently - that has led me to maintain a few popular repositories like XState, Emotion, Changesets, Redux-Saga. Recently, I also started to contribute to TypeScript itself.

Jen Luker
Gremlin, USA
Jen Luker is a Sr. Frontend Engineer, conference speaker, and BookBytes podcast co-host. She has spent the majority of her career as a full-stack developer using PHP, Javascript, and CSS, but has a particular fondness for frontend technologies. She is an advocate for both accessibility, and processes that make doing the right thing easy and the wrong thing hard. When she's not exploring solutions, learning new technologies, or reading, Jen's spare time is spent spinning yarn from raw wool and knitting; she's even been known to 3D print her own tools for the job. She is also fascinated by all things space, antique cars, and IoT.

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.

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".

Phil Nash
DataStax, Australia
Phil is a developer relations engineer for DataStax 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.