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!

Karl Horky
Founder @ upleveled.io, Netherlands
As technical founder at upleveled.io, I design and teach our full stack and AI programs, helping beginners and experienced engineers take the next step in their technical growth.
With AI increasingly reshaping technical work, fundamental skills and comprehensive, well-rounded knowledge matter even more. In this context, I focus on designing broad and accessible curricula, mentoring learners at different stages and contributing widely to open source along the way.

Amy Blankenship
Senior Full Stack Developer, USA
My degree is in Graphic Design, but when I started coding by accident, I fell in love with the beauty of good code. I've never looked back. I've worked for tiny sole proprietorships and giant multinationals, startups and mature companies. I've found something interesting and worth doing at all of them.

Tom Occhino
Vercel, USA
Tom is the Chief Product Officer at Vercel leading Engineering, Product, and Design. Previously he spent over 12 years at Facebook where he led development of the company’s core JavaScript Infra, shaped its open source program, and was responsible for the creation and development of React and React Native. He enjoys traveling, dance music, fancy cocktails, and simple food.

Kevin Lamping
USA
Kevin Lamping is a Front-end Engineer and Tester. He runs a course on automated testing at http://learn.webdriver.io and has a YouTube Tutorial Channel (Front-end Testing with Kevin Lamping). In his free-time, when he's not playing with his kids, Kevin dabbles in tabletop gaming, disc golf and gardening.

Benjamin Swerdlow
Freestyle, USA
Benjamin Swerdlow took a break from his studies at UChicago, to go work as a Senior Backend Engineer for Apple, who recently took a break from Apple to build Freestyle. He's been building in the Open Source community since high school, and was a technical lead for the World Health Organization's COVID-19 App team.

Graham McNicoll
GrowthBook, USA
Graham is the Co-founder and CEO of GrowthBook, the most popular open-source feature flagging and A/B testing platform. GrowthBook is backed by Y Combinator and Khosla Ventures. Before starting GrowthBook, Graham was the CTO of Education.com for 6 years. Graham is a three-time startup founder, including starting an international non-profit to increase access to communication in the developing world, particularly sub-Saharan Africa. He has a degree in Physics from CMU.

Lachlan Bradford
Tiktok, USA
Lachlan Bradford is a Tech Lead at Tiktok and a core contributor to the Tiktok's design system TUX. He is forward thinking; having worked with VR and AR technology, and enjoys implementing a challenging design.

Itai Hanski
Descope, Israel
For more than twelve years, Itai has been creating on the full spectrum of software development. Anything from simple POCs to intricately complex systems, from native mobile development to fully fledged backend architecture, from libraries and SDKs to client facing applications.

Kevin Gao
Descope, USA
Kevin is an engineer who is passionate about solving problems and learning new skills. When he's not speaking to customers or coding through sprints, you'll find Kevin either on the road driving fast up a twisty mountain road, reading historical fiction books, or looking for a new place in the world to travel to and explore.

Marko Locher
GraphCDN, Austria
Experienced Customer Success professional with a history of working in developer tooling and startups. Extensive background as a support professional.

Rodrigo Donini
Toptal, Spain
Rodrigo is a focused developer who produces digital projects for agencies around the world. He has 20 years of experience using various methodologies and tech in most web and mobile projects. He has a strong knowledge base of the WordPress world and is very engaged with the community: building custom themes, plugins, and core customizations. He specializes in WordPress, developing for the front-end back-end and in managing digital projects.

Maxim Nam
Tele2, Kazakhstan
Tele2 Kazakhstan, Front-end TeamLead, 10 years of web development, in love with project transformation and refactoring React based applications.

Oleksandr Tryshchenko
Personio, Netherlands
Oleksandr Tryshchenko - Senior Engineering Manager @ Personio
He has experience with micro-frontends across three SaaS companies.
Initiated and led the migration of FreshBooks from a monolithic UI to a micro-frontends architecture.
Currently, he serves as a Senior Engineering Manager at Personio, where he leads the efforts to migrate the entire organization, which encompasses over 130 micro-frontends, to a new design system.

Andy Kuszyk
Typeform, UK
Andy Kuszyk is a Staff Engineer at Typeform, an occasional blog author, and an Emacs enthusiast! He's mostly worked in backend systems with the likes of Go, Terraform, and Kubernetes, but also enjoys thinking about the way teams work, communicate, and transfer knowledge.

Sam Scott
Oso, USA
Sam is the cofounder/CTO at Oso working on making security more accessible for developers. Sam previously got a PhD in Cryptography and was a contributor to TLS 1.3

Ben Brandt
Zed, Germany
Ben Brandt works at Zed, helping shape how engineers collaborate with AI and with each other. He is also a Lead Maintainer of the Agent Client Protocol, an open standard for interoperability between editors and coding agents.

Nina Torgunakova
Evil Martians, Portugal
Frontend Engineer at Evil Martians, a product development consultancy. My great inspiration is to shape thoughts into easy-to-use products and articles, and I love to speak publicly. I'm passionate about learning different front-end technologies, and always try to see both pros and cons of using them.

Michael Roberg
Checkout.com, UK
Backed by 15 years of architecting, developing, and managing software teams, I’m an experienced software EM, based in London. My passion is building a great team culture, and delivering through lean & agile frameworks.

Nitin Gupta
Expedia, India
Nitin is a dynamic Full Stack SDE 2 at Expedia Group, India, who thrives on crafting exceptional web experiences. Over the years, he’s worked his magic on projects for Marriott, H&M, Expedia, and more. While React is his go-to tool, his tech arsenal also includes Swift, Kotlin, Spring Boot, GraphQL, and a bunch of other developer superpowers. Known for his love of dev jokes and pun-packed humor, he’s the kind of colleague who keeps both the codebase and the conversations lively.
When he’s not coding, Nitin is either jet-setting to new destinations, smashing shuttlecocks on the badminton court, or jamming out while learning the drums. A fun mix of tech wizardry and good vibes, he’s always up for an adventure—be it debugging or backpacking!

Max Strivens
StackOne, UK
Max Strivens - Solutions Engineer at StackOne - We are a unified integration provider and integration layer for AI.

Noam Zingboim
PayPlus Back End Developer, Israel
Noam Zingboim is a seasoned software engineer specializing in Node.js, JavaScript, and system design for scalable backend services. With experience ranging from architecting new products to maintaining critical systems, he focuses on building maintainable, reliable, and high-performance solutions.

Karen Li
GitHub, USA
Karen Li is a concert pianist turned elementary school teacher turned software engineer. She is currently a software engineer at GitHub's npm team. Aside from engineering work, Karen blends education and technology by sharing her experience with the community. Her motto, "I invest in brains" captures her journey from teaching to tech empowerment.

