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!

Yevheniia Hlovatska
Wix, Ukraine
Yevheniia is from Ukraine, she is a QA Manager at Wixm an Authorized ICAgile Instructor in Agile Testing and automated testing courses author. Her main focus is on building the test automation strategy and best practices for web and mobile applications testing at Wix. She believes in balanced test automation as a tool to support the development velocity, shares her knowledge at conferences and workshops and promotes collaboration between developers and QAs around test automation.

Christian Stuff
Daily, Germany
Christian is an experienced, hands-on frontend developer with a history dating back to the days of table-based layouts and using background images for rounded corners. He's worked with clients of varying industries and sizes. He's been with Daily since early 2020, working on Daily Prebuilt, Daily’s ready-to-go embeddable solution for video calls of all sizes, and Daily React, Daily’s React library for building audio and video in React apps.

Elena Vilchik
Sonar, Switzerland
Elena is a Software Engineer at Sonar, which provides tooling around code quality and security. Her main project is a static code analyzer for JavaScript and TypeScript used by SonarQube, SonarCloud, and SonarLint. Elena focuses on the clean code and tries to ensure the precision of the developed analyzer.

Riaz Virani
Find Niya Software, Canada
Riaz Virani has over a decade of experience in building products and engineering teams. He was most recently CTO at LoadUp Technologies, which topped out at 118 on the Inc 500 Fastest Growing privately-held companies in 2019. Prior to that, Riaz worked in web performance, machine learning, and consulting.

Chad Carlson
Platform.sh, USA
Chad Carlson manages the Developer Relations team at Platform.sh. Chad spent a large portion of his professional career in academia, where he worked primarily in vision science laboratories using Python to study the human visual system: how we detect motion, how we understand natural image statistics, and its evolutionary origins.
Today he can typically be found writing, cooking, or working on projects in Python, Node.js, Go, and whatever new language Platform.sh starts support for and wants another pair of eyes on.

Zachary Conger
StackHawk, USA
Zachary is a Senior DevOps Engineer at StackHawk. As a startup junkie, he has played many roles including operations, engineering, product development, and leadership. In his current role, he is focused on the evolving CI/CD landscape and how this diverse set of technologies can be used to improve the productivity of software developers, and the quality of the code they produce. Outside of work he enjoys music, photography, cycling, and various pastimes.

Nico Krüger
Rollbar, USA
Nico is the Senior Director of Solutions Engineering at Rollbar. He has spent over 13 years working with companies around the world to improve their software development lifecycle focused on quality critical applications. His passion is helping teams deliver quality products to market faster.
“Do what you love and love what you do!”

Stephan Schneider
Contentful, Germany
Stephan Schneider is a backend developer at Contentful. Since 2018 GraphQL is not just an interesting technology for him anymore when he started participating in the company's initial development of their first GraphQL API. He has not stepped back since and constantly plays with new ways to integrate pre-existing data into GraphQL.

Alice De Mauro
Vercel, Netherlands
Software Engineer for more than 15 years, UX designer and programming languages instructor, I've worked in many types of product, from commodities to retail, from media to eSports. At Vercel, I help pre-sales to architect the best technical solution for our future customers.

Rita Castro
Volkswagen Digital Solutions | SDC Portugal, Portugal
Mentorship available
Software Engineer that used to build stand alone applications for data processing and mission planning systems turned into a Full-Stack Developer working with Test Driven Development, XP and Pair Programming. Also a Mom now.

Valentin Kononov
Unity, Finland
Valentin just started to work at Unity3d in Helsinki as Full-Stack Software Engineer. Before that he worked at Mapbox R&D center in Minsk, Belarus. Experienced in Typescript, SQL, .NET, Angular, React, NodeJS, NestJS and other interesting stuff in full stack software development. He loves modern web technical stack, but strongly believes in understanding of fundamental aspects of programming. He likes code writing, work in amazing and useful projects, which can bring something valuable to people. His spare time is mostly dedicated to his family, reading and writing, and also traveling is important part of his life!

Luis H. Ball Jr.
imgix, USA
Luis is a Senior Software Engineer at imgix, focusing on delivering the best images and video developer experience on the web. He’s passionate about open source and baseball (let’s go Bucs!). He's a defunct tech collector, amassing a now-useless pile of everything from eMate 400s to HD-DVD players.

Toni Petrina
Visma, Denmark
Tech lead at Visma e-conomic, developer at heart and frequent speaker at conferences, user groups and local events. Started in QBasic, went through C++ to C#, finally settled in...full-stack? He spends most of the time at the keyboard typing yet another demo or application. If you take his keyboard away from him, he will talk endlessly about code...and functional programming. Been coding for over a decade to know if something is a programming fad or not. And no, functional programming is not a fad at all. Strong proponent of Open Source and all things chocolate.

Sulagna Ghosh
StockEdge, India
I'm Sulagna Ghosh, a JavaScript engineer who loves working with React, performance optimization, web accessibility, and authentication. I enjoy solving tricky problems and fine-tuning rendering workflows to make web experiences as smooth as my morning coffee.
When I'm not coding, you'll find me sharing insights through tech talks, lively discussions, and blogs. I'm always learning—whether it's a new programming language or the secret to the perfect masala chai. Always up for a good brainstorming session, especially if it involves code and caffeine.

Tsvetelina Obretenova
Product Design Manager, Netherlands
Tsvetelina is an experienced design leader with a decade in the tech industry, specializing in Design Systems and driving quality designs with measurable business impact. She is passionate about achieving the delicate balance between people, business objectives, and user-centric design, all while fostering a supportive yet challenging environment for growth and innovation. Beyond work, her fascination with space fuels her curiosity and creativity in both professional and personal pursuits. She sees it as an inspiring visual metaphor for the boundless potential of our human abilities.







