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!
Praveen Kumar D
Praveen Kumar D
Wednesday Solutions, India
Praveen is a technical lead at Wednesday Solutions. He's an open source and a sports enthusiast. He loves taking on challenging problems.
Tomas Ferreras
Tomas Ferreras
basement.studio, Argentina
Developer at basement.studio specializing in React, Three.JS and WebXR. I’m currently focused on pushing the boundaries of the web with shaders and bridging the gap between AI and spatial computing. When I’m not fine-tuning code, I’m experimenting with the future of open-source graphics.
Nazar Hussain
Nazar Hussain
ChainSafe Systems, Germany
I am around the industry for quite a long time having experience spanning over multiple decades. Started coding with the procedural programming approach in Basic and C. Then witness the rise of Object Oriented paradigm and spent years developing in ActionScript and C# and Java and later Ruby and Javascript. Was part of the e-commerce boom and developed hundreds of web portals in PHP, ASP, .NET. The MVC era revolutionized the industry and I contributed through Yii, Zend, CI, CakePHP, Kohana, and later RoR. And now very enthusiastic about the rebirth of functional programming.
Alla Pavlova
Alla Pavlova
Riot Games, Netherlands
Tech Recruiter & Sourcing Trainer. Speaker and community builder, gamer. Currently scaling engineering and art teams at Riot Games.
Interests:
Alexandra Vargas
Alexandra Vargas
Grafana, Amsterdam
Alexa is the tech lead for the Grafana Dashboards Squad and is based in Amsterdam, Netherlands. She sees tech as a way to solve problems and enjoys working with her team every day to roll out features, fix bugs, and sometimes lose at GeoGuessr.
Allan Enemark
Allan Enemark
NVIDIA | Data Visualization, USA
Working on advancing Data Visualization and Data Science with RAPIDS.ai / GPU acceleration at NVIDIA. In a previous life was an Industrial Design Lead.
Ruby Jane Cabagnot
Ruby Jane Cabagnot
Norway
Ruby Jane Cabagnot is a full-stack DotNET/Reactjs developer based in Oslo, Norway, who published a book about writing Enterprise React applications.
Daniel Ostrovsky
Daniel Ostrovsky
Payoneer
Daniel is an AI Architect at Payoneer with over two decades of experience leading development teams, both in Israel and abroad, from idea to production. His current focus is AI infrastructure and multi-agent systems in real-world use — the layer that ties together developer tools, knowledge graphs, and product delivery. Daniel is a public speaker and a blog writer, and an active contributor to open source. He also runs the "NG-Heroes" meetup, a space for the local tech community to meet and share what they're learning. Outside of work, family comes first. He proudly holds the title of "The Best Developer in the World" — awarded by his wife, and he has no plans to give it back.
Halil Emre Özen
Halil Emre Özen
Delivery Hero SE, Germany
I always describe myself as an autodidact who is passionate about learning and exploring new things, and I'm always trying to broaden my perspective. I've created two start-ups, one of which was selected as "Turkey's Best 100th Startup" and was invested in twice by prominent investors. Now, I'm working as a Staff Software Engineer for Delivery Hero in Berlin / Germany.
Interests:
G. Ann Campbell
G. Ann Campbell
SonarSource, USA
G. Ann Campbell coded JavaScript for early browsers (think Netscape 3, IE 4), plus Perl, C, and Java. She became a vocal member of the SonarQube community in 2010 and joined SonarSource in 2013, after co-authoring SonarQube in Action. Her software career has spanned support, documentation, coding, and product management. Through the SonarQube community, she has helped hundreds of people understand how to make the most of SonarQube to write Clean and Secure Code.
Daniel Sogl
Daniel Sogl
SHI GmbH, Germany
Daniel Sogl is Director of AI Engineering at SHI GmbH. With a background in FinTech and IT consulting, he helps internal teams and enterprise clients put AI to work in two areas: AI-assisted software engineering and Generative AI. He speaks regularly at international conferences and workshops on turning AI tools into measurable gains in developer productivity and code quality.
Yonatan Kra
Yonatan Kra
Principle Architect @Quicklizard, Israel, Modiin
Yonatan has been involved in some awesome projects in the academy and the industry - from C/C++ through Matlab to PHP and javascript. Former CTO at Webiks and Software Architect at WalkMe and Vonage. Currently he is a Principle software architect at Quicklizard and an egghead instructor.
Carl Vuorinen
Carl Vuorinen
City Dev Labs Oy, Finland
Carl is a web developer and team lead at City Dev Labs in Finland. He has over a decade of experience in web development with various frameworks and languages. He likes to take on challenging projects and to learn new things to effectively solve real problems. He focuses on quality code that produces real value to the end user.
Aaron Mitchell
Aaron Mitchell
HeroDevs, USA
Aaron “Mitch” Mitchell has 10+ years of experience in product management. He’s consulted for Twitter, Sony, Western Digital, Lyft, and others on new product development and strategy. He is currently the President of HeroDevs and spends his time longboarding and playing with his 3 sons.
Marcin Gebala
Marcin Gebala
Saleor, Poland
I'm a software engineer who specializes in building web apps using Python, GraphQL and React. Currently, I work as a lead developer at Saleor. I speak at tech conferences about Python and GraphQL. I'm a runner, musician and traveler in my free time. I'm based in Wrocław, Poland.
Dmitry Zaets
Dmitry Zaets
Lowerton, Spain
Dmitry is a co-founder and CTO of Lowerton. Within the last 13 years, he has worked in numerous startups, helping them grow from early-stage prototypes to fully functional products. He is passionate about software architecture and developer experience. Dmitry has been a co-organizer and active member of the BarcelonaJS (https://www.meetup.com/barcelonajs/) community since 2017.
Alessandro Senese
Alessandro Senese
Formidable, UK
Hi, I'm Alessandro, a software developer from London. I build a mobile app at Formidable using React Native. I truly believe it is our responsibility to push for accessibility to be considered first-class citizens in our development flow.
Daniel Bolivar
Daniel Bolivar
Personio, Germany
Cozycore Engineer
Romello Goodman
Romello Goodman
New York Times, USA
Romello Goodman is a creative technologist primarily working with web technologies. By day, he works as a software engineer at The New York Times. By night, he uses a number of different tools to explore the intersection of creativity and code.
Amani Kanu
Amani Kanu
MUST Company, Nigeria
Amani Kanu is a Senior Frontend Engineer, Solution Architect, Tech Evangelist, and Tech Career Coach with over half a decade of experience building modern web applications. He works at MUST Company, where he builds scalable frontend products using React, Next.js, TypeScript, and modern web technologies. His work focuses on frontend architecture, performance, developer experience, and building products that serve users across diverse network and device conditions. Amani is also the founder of Calabar Tech Community and Decadev Alumni Network, two communities that support thousands of developers and tech professionals. Through Footprint Mentorship and other mentorship programs, he helps aspiring and growing engineers build technical skills, career confidence, and access to global opportunities. He has spoken at Google I/O Extended Ajah, Web3 Lagos Conference, ETHSafari Kenya, DevFest events, Sailsconf Africa, RubyConf Africa, and several developer community events.
Aspen Smith
Aspen Smith
ReadySet, USA
Aspen Smith is the dataflow tech lead at ReadySet. She spent the first decade of her career as a full-stack application and data pipeline engineer, where she developed a deep dissatisfaction with the current offerings in the database world, and passion for making the experience of using databases easier and more delightful for application engineers. She joined ReadySet in 2020 as the second full-time hire to make that vision a reality. In her spare time, Aspen likes to play music and ride bikes around Brooklyn, NY.
Mrina Sugosh
Mrina Sugosh
CKEditor, USA
Mrina is a Developer Relations Manager with 4+ years' experience with Full Stack Development, Cloud, and AI products. She has been "hacking" away at tech projects since the age of 14! Her first project was programming her TI-84 calculator to be able quickly find the hypotenuse of a right triangle. Since then she has been in constant pursuit of employing CS to enable her curiosity
Daniel Rios Pavia
Daniel Rios Pavia
Personio, Spain
Daniel is a Lead Frontend Engineer in Design Systems at Personio based in Madrid, Spain. Previously he was a core maintainer of Shopify's Hydrogen framework and had his own company yellowme.mx for seven years. Outside of work, He is into electronic music, guitars and tennis.
Petros Plakogiannis
Petros Plakogiannis
Trasys Greece, Greece
Petros Plakogiannis lives in Greece. He has graduated from the University of Piraeus and the Technological Educational Institute of Crete. He has been working professionally as a software tester since 2009, with a strong focus on automated testing using various tools like QTP, Selenium, Protractor, Cypress, etc. He also has significant experience in white box testing, application testing (desktop, web, and mobile), and security testing. He travels a lot and supports customers onsite by providing information regarding automation testing. He is also a Cypress Ambassador and the main organizer of the Ministry of Testing Athens meetups, and he is very active in the testing community