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!

Santosh Viswanatham
Interledger Foundation, India
Santosh is an Open web advocate, an Ambassador at the Interledger Foundation. He writes Vanilla JS for Breakfast and tweets at @isantoshv. Santosh was previously a Tech Speaker and a Participation Leader at Mozilla. As a Tech Speaker, he delivered talks on Javascript, WebVR, Cross-Platform browser extensions, and Devtools in the past at various tech conferences. In recognition of his contributions to Mozilla, his name is featured in the about:credits of every shipped Firefox browser.

Hila Fish
Senior DevOps Engineer, Israel
Hila Fish is a Senior DevOps Engineer, with 15 years of experience in the tech industry.
AWS Community Builder, Hashicorp Ambassador, and an international public speaker who believes the DevOps culture is what drives a company to perform at its best and talks about that and other DevOps/Infrastructure topics at conferences.
She carries the vision to enhance and drive business success by taking care of its infrastructure.
In her spare time, Hila is a lead singer of a cover band, giving back to the community by co-organizing DevOps-related conferences (Inc. "DevOpsDays TLV" & "StatsCraft" monitoring-focused event), providing mentorship and managing programs in “Baot” (The largest Israeli technical women’s community), and enjoys sharing her passion and knowledge wherever she can, including across diverse technology communities, initiatives and social media.

Aileen Villanueva
Orama, Mexico
My background includes 10 years experience in Web development and currently venturing into Machine Learning, I am deeply passionate about empowering and inspiring others, which is why I proudly serve as a Women Techmaker Ambassador, dedicated to sharing my knowledge and experiences with the community and fostering diversity in the tech industry.

Jonas Kruckenberg
CrabNebula, Germany
As a self-taught web developer, I quickly discovered my love for lightning-fast software - whether it's a website or an app. This passion has sent me on a long journey from fine-tuning websites to exploring the exciting world of Local First Software and peer-to-peer networking.
Along the way, I can't help but ponder what our digital will look like, and how we can make it more secure, privacy-focused, and beneficial for humanity. Putting my money where my mouth is, I’m currently working on Tauri, a framework to build smaller, faster and more secure apps.

Lili Kastilio
Snyk, UK
Working closely with customers designing & building TypeScript solutions. Recently a Lead Engineer at Snyk working on extending our current languages offering by introducing new languages and language specific concepts into our system in the shape of libs, parsers and microservices. When not coding I like to spend my time hanging upside down doing circus things.

Andrew Hao
Lyft, USA
Andrew is a Staff Engineer at Lyft, where he builds products for Lyft's riders. When it comes to engineering, he's especially passionate about Web performance, machine learning and systems design. When it comes to people, he loves learning about what makes people tick and building high performing teams. In a prior life, he was a Principal Engineer at Carbon Five and an Engineering Manager at Blurb Books. He lives in Oakland with his family where he spends his free time running the streets and trails, dreaming about the day we'll be able to race in person.
Online, he writes at https://www.g9labs.com

Matteo Frana
React Bricks, Italy
I am from Bergamo, Italy, I have a son of 7 and a daughter of 4. I program since I was 10 (it was 1988, GW-BASIC on a IBM 8088) and develop web apps since 1996. I’m in love with React and my mission is making content editing fun with React Bricks. I play the piano, I try to play the guitar and I write songs. I like cooking and I'm interested in quantum mechanics.

Neciu Dan
CareerOS, Spain, Barcelona
Neciu Dan is the technical co-founder and tech lead of CareerOS, where he spearheads the development, maintenance, and scaling of the main application. Bringing over 12 years of engineering expertise to the table, Dan has a proven track record in the tech industry, having previously served as a Senior Product Engineer at the New York E-commerce brand, AdoreMe, and as a Senior Software Engineer at the food delivery company, Glovo.

Jenny Truong
Stately.ai, USA
As the Head of Operations and Developer Relations at Stately.ai, Jenny also dedicates her time to co-organizing Orlando JS meetups. Based in the heart of Orlando, Florida, Jenny is a passionate advocate for her community, imparting valuable insights on mental awareness, state machines, and various collaborative tools. When she's not engaging with users or gracing the stage, you can spot Jenny at your favorite local donut shop, savoring the simple joys of life!

Ashley Claymore
Bloomberg , UK
Ashley is a software engineer at Bloomberg in the Trading Analytics team. He has been using TypeScript since v1.8 and contributed to the TypeScript implementation of the new 'Ergonomic brand checks for private fields' syntax. He is also a Bloomberg TC39 delegate currently working on the 'Change Array by copy' proposal.

Evyatar Alush
Meta, Israel
Evyatar is a Front End Engineer at Meta. He is a strong advocate for open source software and is the author of several high-profile projects, including Vest validation framework and emoji-picker-react. Evyatar is passionate about API design, dev ergonomics, and building tools for developers.

Marco Otte-Witte
Mainmatter, Germany
Marco is the founder and Managing Director of Mainmatter, an Engineering Consultancy from Europe. He has been in tech since the late 90s and worked with various technologies from .NET to Rails, Elixir and Phoenix, TypeScript and Rust. He and his team advise international teams on architecture, technology choice, process, and developer infrastructure. He is passionate about developing sustainable and reliable products and organizations based on strong foundations. Marco is also the Host of EuroRust, the leading Rust conference in Europe.

Kaleb McKelvey
Netflix, USA
I'm a frequent traveler, too much coffee drinker, and a constant Reddit lurker. Since Diablo 1 piqued my interest in learning how to program, I've been on a mission to continuously grow through my career and personal experiences as a Software Engineer. I hope to share the things I learn with the world!

Taley'a Mirza
GDE, Deliveryhero, ex-Careem, Germany
Mentorship available
Taley’a is a software engineer, she has been helping many teams in building and maintaining the frontend architecture of products over the last 8 years. She has worked mostly with JavaScript & React, but has experience in many other web and mobile technologies. She is open contributor in community and likes to speak in community events and conferences. She is an advocate for accessibility and women empowerment. She has interest in reading, art and traveling.

Fredrik Höglund
ephem.dev, Sweden
Fredrik is currently a freelance consultant and has been working with and been weirdly fascinated by React Server Rendering for the last 8 years. He is a React Query contributor, has written his own custom server renderer(s), and though he wishes he had time to contribute more actual code to open source than he currently does, his issues, discussions, suggestions and explanations on mostly SSR-related matters litters many corners of GitHub and the wider internet.
He lives in Stockholm, Sweden, is a Cognitive Scientist by education and likes brewing beer in his free time, that is, when he isn’t playing Zelda with his kids. Zelda is incidentally also the name of his dog.
Luca Del Puppo
Nearform, Italy
I'm a Senior Software Engineer, Microsoft MVP, Google Developer Expert Codemotion Ambassador and GitKraken Ambassador. I love JavaScript and TypeScript.
In my free time, I love studying new technologies, improving myself, creating YouTube content or writing technical articles. I can’t stay without trail running and love to do it in my love Dolomiti.