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!

Lucas Estevão
Apple via Avenue Code, USA
Mentorship available
Lucas Estevão is an Engineering Manager at Apple through Avenue Code, with over 17 years of experience in front-end development and technical leadership. From Belo Horizonte to Silicon Valley, his journey has been marked by resilience and continuous learning. He also works as a mentor and speaker, sharing insights on leadership and career development.

Chris Ng
Linkedin, USA
Chris Ng is a Senior Staff Software Engineer at LinkedIn based in New York City. Chris leads the linting strategy for LinkedIn's flagship web application and brings together different teams and personalities to achieve shared goals related to web infrastructure, product strategy, and resolving long standing issues.

Scott Gerlach
StackHawk, USA
Scott Gerlach is Co-founder and Chief Security Officer at StackHawk, a Denver-based startup focused on empowering engineers to easily identify and remediate security bugs. Scott brings over two decades of security and engineering experience to his current role, having served as CSO, CISO, and in other executive leadership functions at companies like SendGrid, Twilio, and GoDaddy. When he's not at work, you'll find Scott spending time with family, brewing beer, and playing guitar.

Cody Zuschlag
Nearform, France
Cody is a software engineer consultant, developer relations engineer, and university instructor with a passion for learning and sharing technology. He teaches a university web development course and loves interacting with developers of all experience levels. He started speaking internationally in 2022 at React Summit and NodeConf EU as well as hosting some of the events connected to NodeConf EU. His current passion is building full-stack and decentralized applications using all OSS technologies.

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
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
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
Riot Games, Netherlands
Tech Recruiter & Sourcing Trainer. Speaker and community builder, gamer. Currently scaling engineering and art teams at Riot Games.
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
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
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
Payoneer, Israel
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.

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
Thinktecture AG, Germany, Karlsruhe
Daniel Sogl is a Consultant at Thinktecture AG and a Microsoft MVP for Developer Technologies – Web Development.
He helps companies design and implement complex web applications, with a strong focus on modern web technologies with Angular as well as Generative AI and AI-assisted software development.
Knowledge sharing is one of his core passions – as a speaker, trainer, and author, he regularly contributes to conferences, workshops, and publications. His mission is to foster technical excellence and empower teams to build sustainable, future-proof software solutions.

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.

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.

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.

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.

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.

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.

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.

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
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
