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!
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.
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!
Ashley Claymore
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
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
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
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!
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.
Luca Del Puppo
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.
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.
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.
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.
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 ;)
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.
Dotan Simha
Dotan Simha
The Guild, Israel
Creator of the GraphQL Code Generator library. Open source developer. CTO @ The Guild
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.
Laurin Quast
Laurin Quast
The Guild, Germany
Laurin Quast is a developer that started exploring GraphQL, by leading the private and later public API development at a start-up. Realizing that there are still many unsolved problems and challenges within the space, he started contributing to famous JavaScript libraries, such as GraphQL Code Generator and GraphQL Tools. Diving deeper and deeper, the transition into becoming a full-time open-source developer at The Guild was inevitable.
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.
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
Jad Fakih
Jad Fakih
Integrix AI, Australia
I am the founder of Integrix, an AI-driven agency that helps established businesses leverage artificial intelligence and automation to transform their sales and marketing strategies. With a background in sales and over a year of focused experience in AI and its practical applications, I specialise in guiding business owners to streamline operations by automating routine tasks and optimizing sales cycles. This enables them to concentrate on high-value tasks, accelerating growth and scaling their business.
Sahar Pournasseh
Sahar Pournasseh
Gearback, Iran
Sahar is a software developer and a game enthusiast. She has been developing in the web and mobile platforms for years, but her childhood passion for games and gaming brought her to the game industry and her experience with web and mobile platforms gave her more insight to become an indie game dev. Starting with JavaScript web games made this passion burn brighter and she's been creating games ever since, working with different engines and experimenting with creating multiplayer and single player games.
Interests:
Matias Huhta
Matias Huhta
Simplr, Finland
Matias is an enthusiastic Software Developer who loves working with developer tooling. He’s an active member of Open Source communities and aims to contribute to the tools he uses. Matias aims to ease the day to day development experience of developers around the world while also making the experience as enjoyable and fun as possible. Matias is a huge advocate of using the web platform and the features it provides natively.
Cristobal Chao
Cristobal Chao
Torii Studio, USA
Cristóbal Chao is a software engineer, UX specialist and founder of Torii Studio. He crafts frontend systems that are expressive, fast, and rooted in storytelling. His work blends the boundaries of design and engineering—whether he’s animating particles in WebGL, or helping teams scale React apps with soul. Previously, he worked at Google and co-founded multiple creative tech products.
Haifeng Jin
Haifeng Jin