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
Santosh Viswanatham
Arcesium , India
Santosh is a Principal Engineer at Arcesium, an Open Web advocate, and a former Ambassador at the Interledger Foundation. He is passionate about building things with JavaScript. 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. In recognition of his contributions to Mozilla, his name is featured in the about:credits of every shipped Firefox browser.
Andrew Hao
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
Neciu Dan
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.
Arun Michael Dsouza
Arun Michael Dsouza
Bloomberg, UK
Computer programmer from India currently building enterprise products for the web. Tech speaker, open source software author and contributor. Community leader for React Delhi-NCR and Open Source Delhi. Plays drums (occasionally), loves travelling, listening to rock music and playing video games.
Tamar Twena-Stern
Tamar Twena-Stern
XM Cyber, Israel
Tamar is a software developer, manager and architect. She has a decade of software engineering experience in various technologies: Server side, big data, mobile, web technologies, and security. She is currently focusing on Node.js, and has a deep knowledge of Node.js server architecture and Node.js performance optimisations.
Jonas Kruckenberg
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
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.
Luca Del Puppo
Luca Del Puppo
Nearform, Italy
I'm a Senior Software Engineer, Former 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.
Giulio Zausa
Giulio Zausa
Flux.ai, Austria
Giulio is an Italian software engineer working at Flux and contributing to open source with Poimandres. He's deeply passionate about pushing the web platform to its limits, building things like custom React reconcilers, real-time computer vision on Web Workers and flex layout engines for THREE.js.
Paolo Insogna
Paolo Insogna
Platformatic, Italy
Node.js TSC Member, Principal Engineer at Platformatic, Polyglot Developer. RPG and LARP addicted and nerd on lot more. Surrounded by lovely chubby cats.
Taley'a Mirza
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.
Dylan Jhaveri
Dylan Jhaveri
MUX, USA
Dylan is a Senior Software Engineer at Mux, a startup building online video infrastructure for developers. Dylan works on the DevEx team to help developers deliver smooth video to their users. Previously he co-founded Crowdcast, a live video streaming platform.
Fredrik Björk
Fredrik Björk
Grafbase, Sweden
Founder & CEO at Grafbase
Dotan Simha
Dotan Simha
The Guild, Israel
Creator of the GraphQL Code Generator library. Open source developer. CTO @ The Guild
Jonathan Baker
Jonathan Baker
Shopify, USA
Staff Developer @ Shopify
Fredrik Höglund
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.
Jenny Truong
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!
Håkan Silfvernagel
Håkan Silfvernagel
Miles AS, Norway
Håkan holds a Master of Science degree in Electrical Engineering and in addition, he holds a Master’s degree in Leadership and Organizational behavior. He has also taken courses on university level in psychology, interaction design and human-computer interaction. He has 20 years’ experience of software development in various positions such as developer, tester, architect, project manager, scrum master, practice manager and team lead. Håkan is Chairman of the local chapter of the Norwegian .NET User Group Oslo (NNUG) and is active as an Ambassador for Oslo.AI the local chapter for the global City.AI community. Håkan is a Microsoft Most Valuable Professional (MVP) in AI. Currently, Håkan is working as Manager AI and Big Data at Miles AS, a Norwegian consultancy company.
Kasia Jastrzebska
Kasia Jastrzebska
Cleo, Poland
Design System Tech Lead at Cleo. Frontend Engineer for ages with a huge passion for CSS (and design systems!). Horse rider ;)
Chaitanya Rahalkar
Chaitanya Rahalkar
Block Inc, Austin, TX, USA
I am a Software Security Engineer at Block (f/k/a Square). I am passionate about AI, startups, and cybersecurity
Evyatar Alush
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.
Jamie Maria Schouren
Jamie Maria Schouren
DEITY, Netherlands
Jamie Maria started as a native app developer but soon jumped into the world of JavaScript, Progressive Web Apps and Service Oriented Architectures. Driven by the urge for innovation she co-founded DEITY with the aim to improve the online world around her by introducing middleware and SOA as a standard to any e-commerce platform.
Szymon Chmal
Szymon Chmal
Callstack, Poland
Creator of Rozenite, Harness and Voltra. The kind of person who dives into code and somehow makes the "impossible" happen. Focused on building the next generation of developer tools so you can ship your apps even faster.
Matt Fellows
Matt Fellows
Pactflow, Australia
Matt Fellows is a core contributor to the Pact contract-testing framework, and co-founder of the microservices continuous delivery platform – Pactflow. A self-described polyglot who enjoys working at the intersection of technology, humans and ideas – ideally fully caffeinated. He's passionate about giving back to the tech community, sharing learnings at local meetups and conferences, and is a core contributor to the popular Pact microservices testing framework and author of the Muxy chaos testing tool. When not absorbing the Internet via osmosis, he can be found teaching kids at Code Club, playing basketball or pumping iron like Arnie.